title: Study of omega-meson production in pp collisions at ANKE

abstract:
  The production of omega-mesons in the pp->pp omega reaction has been
investigated with the COSY-ANKE spectrometer for excess energies of 60 and
92MeV by detecting the two final protons and reconstructing their missing mass.
The large multipion background was subtracted using an event-by-event
transformation of the proton momenta between the two energies. Differential
distributions and total cross sections were obtained after careful studies of
possible systematic uncertainties in the overall ANKE acceptance. The results
are compared with the predictions of theoretical models. Combined with data on
the phi-meson, a more refined estimate is made of the Okubo-Zweig-Iizuka rule
violation in the phi/omega production ratio.


title: Single-Pion Production in pp Collisions at =.95 GeV/c (I)

abstract:
  The single-pion production reactions $pp\to d\pi^+$, $pp\to np\pi^+$ and
$pp\to pp\pi^0$ were measured at a beam momentum of 0.95 GeV/c ($T_p \approx$
400 MeV) using the short version of the COSY-TOF spectrometer. The
implementation of a central calorimeter provided particle identification,
energy determination and neutron detection in addition to time-of-flight and
angle measurements. Thus all pion production channels were recorded with 1-4
overconstraints. The total and differential cross sections obtained are
compared to previous data and theoretical calculations. Main emphasis is put on
the discussion of the $pp\pi^0$ channel, where we obtain angular distributions
different from previous experimental results, however, partly in good agreement
with recent phenomenological and theoretical predictions. In particular we
observe very large anisotropies for the $\pi^0$ angular distributions in the
kinematical region of small relative proton momenta revealing there a dominance
of proton spinflip transitions associated with $\pi^0$ $s$- and $d$-partial
waves and emphasizing the important role of $\pi^0$ d-waves.


title: Mesons in the nuclear Medium

abstract:
  We discuss recent experimental results on the modification of hadron
properties in a nuclear medium. Particular emphasis is placed on an $\omega$
production experiment performed by the CBELSA/TAPS collaboration at the ELSA
accelerator. The data shows a smaller $\omega$ meson mass together with a
significant increase of its width in the nuclear medium.


title:
Activation measurement of the 3He(alpha,gamma)7Be cross section at low
  energy

abstract:
  The nuclear physics input from the 3He(alpha,gamma)7Be cross section is a
major uncertainty in the fluxes of 7Be and 8B neutrinos from the Sun predicted
by solar models and in the 7Li abundance obtained in big-bang nucleosynthesis
calculations. The present work reports on a new precision experiment using the
activation technique at energies directly relevant to big-bang nucleosynthesis.
Previously such low energies had been reached experimentally only by the
prompt-gamma technique and with inferior precision. Using a windowless gas
target, high beam intensity and low background gamma-counting facilities, the
3He(alpha,gamma)7Be cross section has been determined at 127, 148 and 169 keV
center-of-mass energy with a total uncertainty of 4%. The sources of systematic
uncertainty are discussed in detail. The present data can be used in big-bang
nucleosynthesis calculations and to constrain the extrapolation of the
3He(alpha,gamma)7Be astrophysical S-factor to solar energies.


title: Hadron Blind Detector for the PHENIX Experiment at RHIC

abstract:
  The PHENIX collaboration has designed a conceptually new Hadron Blind
Detector (HBD) for electron identification in high density hadron environment.
The HBD will identify low momentum electron-positron pairs to reduce the
combinatorial background in the mass region below 1 GeV/c^2. The HBD shall be
installed in PHENIX during the 2007 physics run. The HBD is a windowless
proximity focusing Cherenkov detector with a radiator length of 50 cm, CsI
photocathode and three layers of Gas Electron Multipliers (GEM) for gas
amplification. Pure CF_4 serves both as a radiator and as a detector gas. The
radiation budget of the device is less than 3% of a radiation length.


title:
Measurements of the Electron-Helicity Dependent Cross Sections of Deeply
  Virtual Compton Scattering with CEBAF at 12 GeV

abstract:
  We propose precision measurements of the helicity-dependent and helicity
independent cross sections for the ep->epg reaction in Deeply Virtual Compton
Scattering (DVCS) kinematics. DVCS scaling is obtained in the limits
Q^2>>Lambda_{QCD}^2, x_Bj fixed, and -\Delta^2=-(q-q')^2<<Q^2. We consider the
specific kinematic range Q^2>2 GeV^2, W>2 GeV, and -\Delta^21 GeV^2. We will
use our successful technique from the 5.75 GeV Hall A DVCS experiment
(E00-110). With polarized 6.6, 8.8, and 11 GeV beams incident on the liquid
hydrogen target, we will detect the scattered electron in the Hall A HRS-L
spectrometer (maximum central momentum 4.3 GeV/c) and the emitted photon in a
slightly expanded PbF_2 calorimeter. In general, we will not detect the recoil
proton. The H(e,e'g)X missing mass resolution is sufficient to isolate the
exclusive channel with 3% systematic precision.


title: Analysis Method for Jet-Like Three-Particle Azimuthal Correlations

abstract:
  Jet-like three-particle azimuthal correlations can discriminate various
physical scenarios that have been proposed to explain the observed strong
modification to two-particle azimuthal correlations. The three-particle
correlation analysis is notoriously difficult in heavy-ion collisions due to
the large combinatoric backgrounds. We describe the general idea behind the
jet-like three-particle azimuthal correlation analysis, with emphasis put on
the subtraction of the combinatoric backgrounds. We discuss in detail the
various systematic effects in such an analysis.


title: Cumulant versus jet-like three-particle correlations

abstract:
  Two-particle jet-like azimuthal correlations have revealed intriguing
modifications to the away-side of high pt trigger particles in relativistic
heavy-ion collisions. Three-particle jet-like azimuthal correlation and
three-particle azimuthal cumulant have been analyzed in experiments in attempt
to distinguish conical emission of jet-correlated particles from other physics
mechanisms. We investigate the difference between three-particle jet-like
correlation and three-particle cumulant in azimuth. We show, under the
circumstance where the away-side two-particle correlation is relatively flat in
azimuth and similar in magnitude to the azimuthal average of the two-particle
correlation signal, that the three-particle cumulant cannot distinguish conical
emission from other physics mechanisms. The three-particle jet-like
correlation, on the other hand, retains its discrimination power.


title: High-pt Particle Production at PHENIX

abstract:
  It has been established that "hard probes", observables involving
high-momentum transfer, provide useful tools for studying the hot, dense medium
created in nucleus-nucleus collisions at RHIC. The nuclear modification factor,
azimuthal correlations, direct photon production, as well as the dependence of
the nuclear modificaton factor on centrality and angle with respect to the
reaction plane are critical for understanding the early dynamics of such
heavy-ion collisions. We will review recent results from PHENIX for particle
production at high-pT and discuss their implications.


title:
High-pT pi0 Production with Respect to the Reaction Plane Using the
  PHENIX Detector at RHIC

abstract:
  The origin of the azimuthal anisotropy in particle yields at high pT (pT > 5
GeV/c) in RHIC collisions remains an intriguing puzzle. Traditional flow and
parton energy loss models have failed to completely explain the large v2
observed at high pT. Measurement of this parameter at high pT will help to gain
an understanding of the interplay between flow, recombination and energy loss,
and the role they play in the transition from soft to hard physics. Neutral
mesons measured in the PHENIX experiment provide an ideal observable for such
studies. We present recent measurements of \piz yields with respect to the
reaction plane, and discuss the impact current models have on our understanding
of these mechanisms.


title: $\phi$ meson production and partonic collectivity at RHIC

abstract:
  New results on $\phi$-meson production and elliptic flow $v_{2}$ measurements
from RHIC 2004 run (Run-IV) have been reviewed. In addition, the di-hadron
correlation function between the trigged $\phi$ and $\Omega$ and the associated
soft particles was simulated. Knowledge about these results are discussed.


title:
Rapidity and species dependence of particle production at large
  transverse momentum for $d$+Au collisions at \sqrt s_NN = 200 GeV

abstract:
  We determine rapidity asymmetry in the production of charged pions, protons
and anti-protons for large transverse momentum (pT) for d+Au collisions at
\sqrt s_NN = 200 GeV. The identified hadrons are measured in the rapidity
regions |y| < 0.5 and 0.5 < |y| < 1.0 for the pT range 2.5 < pT < 10 GeV/c. We
observe significant rapidity asymmetry for charged pion and proton+anti-proton
production in both rapidity regions. The asymmetry is larger for 0.5 < |y| <
1.0 than for |y|< 0.5 and is almost independent of particle type. The
measurements are compared to various model predictions employing multiple
scattering, energy loss, nuclear shadowing, saturation effects, and
recombination, and also to a phenomenological parton model. We find that
asymmetries are sensitive to model parameters and show model-preference. The
rapidity dependence of \pi^{-}/\pi^{+} and \bar{p}/p ratios in peripheral d+Au
and forward neutron-tagged events are used to study the contributions of
valence quarks and gluons to particle production at high pT. The results are
compared to calculations based on NLO pQCD and other measurements of quark
fragmentation functions.


title: High pt Measurements at the CERN SPS

abstract:
  The current experimental situation concerning high pt observables at the CERN
SPS is reviewed. Recent data from the NA45, NA49 and NA57 collaborations are
discussed and compared to earlier measurements by WA98 and NA45 at the same
center-of-mass energies, as well as to measurements at the higher energies by
the RHIC experiments. The observables include new p+p, A+A spectra, nuclear
modification factors (R_AA, R_CP), two particle azimuthal correlations, and
baryon to meson ratios at moderately high pt. Generally, the interpretation of
the SPS data suffers from the lack of reliable baseline measurements (p+p and
p+A). However, the overall picture that is emerging suggests that already at
SPS energies medium effects similar to those observed at RHIC are present.


title: A Cone Jet-Finding Algorithm for Heavy-Ion Collisions at LHC Energies

abstract:
  Standard jet finding techniques used in elementary particle collisions have
not been successful in the high track density of heavy-ion collisions. This
paper describes a modified cone-type jet finding algorithm developed for the
complex environment of heavy-ion collisions. The primary modification to the
algorithm is the evaluation and subtraction of the large background energy,
arising from uncorrelated soft hadrons, in each collision. A detailed analysis
of the background energy and its event-by-event fluctuations has been performed
on simulated data, and a method developed to estimate the background energy
inside the jet cone from the measured energy outside the cone on an
event-by-event basis. The algorithm has been tested using Monte-Carlo
simulations of Pb+Pb collisions at $\sqrt{s}=5.5$ TeV for the ALICE detector at
the LHC. The algorithm can reconstruct jets with a transverse energy of 50 GeV
and above with an energy resolution of $\sim30%$.


title: Introduction to the Double-Beta Decay Experimental Program

abstract:
  This document gives an overview of the technical issues and goals facing
future double-beta decay experiments.


title: Has the QCD Critical Point been Signaled by Observations at RHIC ?

abstract:
  The shear viscosity to entropy ratio ($\eta/s$) is estimated for the hot and
dense QCD matter created in Au+Au collisions at RHIC ($\sqrt{s_{NN}}=200$ GeV).
A very low value is found $\eta/s \sim 0.1$, which is close to the conjectured
lower bound ($1/4\pi$). It is argued that such a low value is indicative of
thermodynamic trajectories for the decaying matter which lie close to the QCD
critical end point.


title: First measurement of the rho spectral function in nuclear collisions

abstract:
  The NA60 experiment at the CERN SPS has studied low-mass muon pairs in 158
AGeV In-In collisions. A strong excess of pairs is observed above the yield
expected from neutral meson decays. The unprecedented sample size close to 400K
events and the good mass resolution of about 2% made it possible to isolate the
excess by subtraction of the decay sources. The shape of the resulting mass
spectrum shows some non-trivial centrality dependence, but is largely
consistent with a dominant contribution from pi+pi- ->rho ->mu+mu-
annihilation. The associated rho spectral function exhibits considerable
broadening, but essentially no shift in mass. The pT-differential mass spectra
show the excess to be much stronger at low pT than at high pT. The results are
compared to theoretical model predictions; they tend to rule out models linking
hadron masses directly to the chiral condensate.


title: Electroweak boson detection in the ALICE muon spectrometer

abstract:
  The ALICE capabilities for W and Z detection at LHC are discussed. The
contributions to single muon transverse momentum distribution are evaluated.
The expected performance of the muon spectrometer for detecting W and Z bosons
via their muonic decay is presented. Possible application for the study of
in-medium effects in ultrarelativistic heavy ion collisions is discussed.


title: Direct Photon Production in Au+Au Collisions at RHIC-PHENIX Experiment

abstract:
  Direct photons have been measured with the PHENIX experiment in Au+Au
collisions at $\sqrt{s_\mathrm{NN}}$ = 200 GeV. The direct photon result
obtained with PHENIX-EMCal up to 18 GeV/$c$ is consistent with the NLO pQCD
calculation scaled by the nuclear overlap function. The measurement using
internal conversion of photons into $e^+e^-$ shows the enhancement of the yield
comparing with NLO pQCD calculation.


title: Review of Forward Physics at RHIC

abstract:
  The RHIC high energy collision of species ranging from p+p, p(d)+A to A+A
provide access to the {small-x} component of the hadron wave function. The RHIC
program has brought renewed interest in that subject with its ability to reach
values of the parton momentum fraction smaller than 0.01 with studies of
particle production at high rapidity. Furthermore, the use of heavy nuclei in
the p(d)+A collisions facilitates the study of saturation effects in the
gluonic component of the nuclei because the appropriate scale for that regime
grows as A^1/3. We review the experimental results of the RHIC program that
have relevance to {small-x} emphasizing the physics extracted from d+Au
collisions and their comparison to p+p collisions at the same energy.


title: Direct photons measured by the PHENIX experiment at RHIC

abstract:
  Results from the PHENIX experiment at RHIC on direct photon production in
p+p, d+Au, and Au+Au collisions at sqrt(s_NN) = 200 GeV are presented. In p+p
collisions, direct photon production at high p_T behaves as expected from
perturbative QCD calculations. The p+p measurement serves as a baseline for
direct photon production in Au+Au collisions. In d+Au collisions, no effects of
cold nuclear matter are found within the large uncertainty of the measurement.
In Au+Au collisions, the production of high p_T direct photons scales as
expected for particle production in hard scatterings. This supports jet
quenching models, which attribute the suppression of high p_T hadrons to the
energy loss of fast partons in the medium produced in the collision. Low p_T
direct photons, measured via e+e- pairs with small invariant mass, are possibly
related to the production of thermal direct photons.


title:
Perturbed angular correlations for Gd in gadolinium: in-beam comparisons
  of relative magnetizations

abstract:
  Perturbed angular correlations were measured for Gd ions implanted into
gadolinium foils following Coulomb excitation with 40 MeV O-16 beams. A
technique for measuring the relative magnetizations of ferromagnetic gadolinium
hosts under in-beam conditions is described and discussed. The combined
electric-quadrupole and magnetic-dipole interaction is evaluated. The effect of
nuclei implanted onto damaged or non-substitutional sites is assessed, as is
the effect of misalignment between the internal hyperfine field and the
external polarizing field. Thermal effects due to beam heating are discussed.


title:
Some notes on the program GKINT: Transient-field g-factor kinematics at
  intermediate energies

abstract:
  This report describes the computer program GKINT, which was developed to
plan, analyze and interpret the first High Velocity Transient Field (HVTF)
g-factor measurements on radioactive beams produced as fast fragments. The
computer program and these notes were written in September 2004. Minor
corrections and updates have been added to these notes since then. The
experiment, NSCL experiment number 02020, 'Excited-state configurations in S-38
and S-40 through transient-field g-factor measurements on fast fragments', was
performed in October 2004; results have been published in Physical Review
Letters 96, 112503 (2006).


title:
Shell structure underlying the evolution of quadrupole collectivity in
  S-38 and S-40 probed by transient-field g-factor measurements on fast
  radioactive beams

abstract:
  The shell structure underlying shape changes in neutron-rich nuclei between
N=20 and N=28 has been investigated by a novel application of the transient
field technique to measure the first-excited state g factors in S-38 and S-40
produced as fast radioactive beams. Details of the new methodology are
presented. In both S-38 and S-40 there is a fine balance between the proton and
neutron contributions to the magnetic moments. Shell model calculations which
describe the level schemes and quadrupole properties of these nuclei also give
a satisfactory explanation of the g factors. In S-38 the g factor is extremely
sensitive to the occupation of the neutron p3/2 orbit above the N=28 shell gap
as occupation of this orbit strongly affects the proton configuration. The g
factor of deformed S-40 does not resemble that of a conventional collective
nucleus because spin contributions are more important than usual.


title:
Azimuthal Correlations between Non-Photonic Electrons and Charged
  Hadrons in p+p Collisions from STAR

abstract:
  We present the preliminary measurement of azimuthal correlations between
non-photonic electrons and charged hadrons in p+p collisions at $\sqrt{s_{NN}}
= 200$ GeV from STAR. The results are compared to PYTHIA simulations to
estimate the relative contributions of $D$ and $B$ meson semi-leptonic decays
to the non-photonic electrons.


title: Electromagnetic Probes in PHENIX

abstract:
  Electromagnetic probes are arguably the most universal tools to study the
different physics processes in high energy hadron and heavy ion collisions. In
this paper we summarize recent measurements of real and virtual direct photons
at central rapidity by the PHENIX experiment at RHIC in p+p, d+Au and Au+Au
collisions. We also discuss the impact of the results and the constraints they
put on theoretical models. At the end we report on the immediate as well as on
the mid-term future of photon measurements at RHIC.


title:
Measurement of Open Heavy Flavor Production with Single Muons in p+p and
  d+Au Collisions at RHIC

abstract:
  Heavy flavor production in hadronic collisions is dominated by gluonic
processes and so is a sensitive probe of the gluon structure function in the
nucleon and its modification in nuclei. A study of heavy flavor production in
p+p and d+Au collisions in various kinematic regions presents an opportunity to
probe cold nuclear medium effects; parton shadowing, color glass condensate,
initial state energy loss, and coherent multiple scattering in final state
interactions. The PHENIX muon arms cover both forward and backward directions
in the rapidity range of $1.2 < |\eta| < 2.4$. We investigate single muon
production from open heavy flavor and light mesons decay in p+p and d+Au
collisions at forward and backward rapidity.


title: Studying Jets with Identified Particles in PHENIX

abstract:
  A surprising excess of protons at intermediate $p_T$, 2-5GeV/c, has been
observed in Au+Au collisions at RHIC, for which the source is not known. In p+p
collisions, particles at this $p_T$ arise from jet fragmentation, however the
observed baryon yield in central Au+Au collisions are not compatible with the
usual jet fragmentation function. Two particle $\Delta\phi$ correlations are a
powerful probe for quantitatively understanding the modifications to jet
fragmentation from interactions with the medium. Earlier studies have shown
that the excess baryons do have jet-like partners, indicating a hard scattering
origin. We present new results from a systematic study of two particle
correlations as a function of trigger and partner particle species, charge,
$p_T$ and centrality from the high statistics Au+Au dataset. p+p collisions are
also analyzed as a reference.


title: Extraction of jet topology using three particle correlations

abstract:
  Recent theoretical studies have indicated that the topological features of
away-side jet fragments can be significantly altered by medium-induced
modifications. The leading candidates resulting from such modifications are
Mach Cones and deflected jets. We show that three particle correlations are
able to distinguish between these different modification scenarios. Initial
results from an application of the method to Au+Au collisions at RHIC
($\sqrt{s_{NN}}=200$ GeV) are presented.


title: Latest results from NA60

abstract:
  The NA60 experiment has measured the production of muon pairs and of charged
particles in In+In collisions at a beam energy of 158 AGeV. For invariant
dimuon masses below the phi the space-time averaged rho spectral function was
isolated by a novel procedure. It shows a strong broadening but essentially no
shift in mass. The production of J/psi was measured as a function of the
collision centrality. As in previous experiments studying Pb+Pb collisions an
anomalous supression is observed, setting in at approximately 90 participant
nucleons. Using the charged particles the reaction plane was reconstructed. The
elliptic flow of charged particles increases with pt showing a saturation for
pt > 2GeV/c. For the first time azimuthal distributions for J/psi are shown.


title: Investigation of the 19Na via resonance elastic scattering

abstract:
  The structure of the unbound proton-rich isotope 19Na was studied in
resonance elastic scattering of a radioactive 18Ne beam on a proton target
using the thick-target inverse-kinematics method. The experiment covered
excitation energy range from 0.5 to 2.7 MeV in c.m.s. Only one state of 19Na
(the second excited state) was observed. A combined R-matrix and
potential-model analysis was performed. The spin and parity assignment of this
second excited state was confirmed to be 1/2+. We showthat the position of the
1/2+ state significantly affects the reaction rate through that state but the
total reaction rate remains unchanged since the 18Ne(2p,gamma) proceeds mostly
via the ground and first excited states in 19Na at stellar temperatures.


title:
Emission spectra and invariant masses of Lambda and p in the
  stopped-K-NN absorption process in 4He and 6Li

abstract:
  We have calculated the emission spectra of Y and N and invariant masses of YN
pairs in the direct K-NN --> YN absorption process at rest in 4He and light
nuclei in order to provide theoretical tools for correct interpretations of
experimental data with or without invoking kaonic nuclear bound states. All the
momentum distributions are broad with widths around 150-200 MeV/c (except for
the case of 6Li target), while the partial invariant mass of each YN pair has a
peak around 2310-2330 MeV/c2. We argue against the interpretations of
stopped-K- experimental data of KEK and FINUDA by Oset and Toki and by Magas,
Oset, Ramos and Toki.


title: Charm and beauty at the LHC

abstract:
  The Large Hadron Collider at CERN will open a new energy domain for heavy-ion
physics. Besides ALICE, the dedicated heavy-ion experiment, also ATLAS and CMS
are preparing rich physics programs with nucleus-nucleus collisions. Here we
focus on open heavy-flavour and quarkonia studies, among the fields that will
most benefit from the high centre-of-mass energy at the LHC. We discuss a few
examples of physics issues that can be addressed and we present a selection and
comparison (where possible) of results on the expected capability of the three
experiments.


title: Correlations and Characterization of Emitting Sources

abstract:
  Dynamical and thermal characterizations of excited nuclear systems produced
during the collisions between two heavy ions at intermediate incident energies
are presented by means of a review of experimental and theoretical work
performed in the last two decades. Intensity interferometry, applied to both
charged particles (light particles and intermediate mass fragments) and to
uncharged radiation (gamma rays and neutrons) has provided relevant information
about the space-time properties of nuclear reactions. The volume, lifetime,
density and relative chronology of particle emission from decaying nuclear
sources has been extensively explored and has provided valuable information
about the dynamics of heavy-ion collisions. Similar correlation techniques
applied to coincidences between light particles and complex fragments are also
presented as a tool to determine the internal excitation energy of excited
primary fragments as it appears in secondary-decay phenomena.


title: Spectroscopy of 9C via resonance scattering of protons on 8B

abstract:
  The structure of the neutron-deficient 9C isotope was studied via elastic
scattering of radioactive 8B on protons. An excitation function for resonance
elastic scattering was measured in the energy range from 0.5 to 3.2 MeV in the
center-of-momentum system. A new excited state in 9C was observed at an
excitation energy of 3.6 MeV. An R-matrix analysis indicates spin-parity 5/2-
for the new state. The results of this experiment are compared with Continuum
Shell Model calculations.


title:
Isotope analysis in central heavy ion collisions at intermediate
  energies

abstract:
  Symmetry energy is a key quantity in the study of the equation of state of
asymmetric nuclear matter. Heavy ion collisions at low and intermediate
energies, performed at Laboratori Nazionali di Legnaro and Laboratori Nazionali
del Sud, can be used to extract information on the symmetry energy coefficient
Csym, which is currently poorly known but relevant both for astrophysics and
for structure of exotic nuclei.


title: Neutron Skin Thickness of 90Zr Determined By Charge Exchange Reactions

abstract:
  Charge exchange spin-dipole (SD) excitations of 90Zr are studied by the
90Zr(p,n) and 90Zr(n,p) reactions at 300 MeV. A multipole decomposition
technique is employed to obtain the SD strength distributions in the cross
section spectra. For the first time, a model-independent SD sum rule value is
obtained: 148+/-12 fm^2. The neutron skin thickness of 90Zr is determined to be
0.07+/-0.04 fm from the SD sum rule value.


title: Three-Particle Azimuthal Correlations

abstract:
  Two-particle azimuthal correlations reveal broadened and softened away-side
correlations. Several different physics mechanisms are possible: large angle
gluon radiation, deflected jets, and conical flow or Cerenkov radiation.
Three-particle correlations are investigated to try to discriminate these
mechanisms. We present results on 3-particle azimuthal correlations between a
trigger particle of 3<pT<4 GeV/c and two softer particles of 1<pT<2 GeV/c for
pp, d+Au and Au+Au collisions at sqrt(sNN) = 200 GeV. Implications of the
results are discussed.


title:
Identified hadron transverse momentum spectra in Au+Au collisions at
  sqrt(s_(NN))=62.4 GeV

abstract:
  Transverse momentum spectra of pions, kaons, protons and antiprotons from
Au+Au collisions at sqrt(s_(NN)) = 62.4 GeV have been measured by the PHOBOS
experiment at the Relativistic Heavy Ion Collider at Brookhaven National
Laboratory. The identification of particles relies on three different methods:
low momentum particles stopping in the first detector layers; the specific
energy loss (dE/dx) in the silicon Spectrometer, and Time-of-Flight
measurement. These methods cover the transverse momentum ranges 0.03-0.2,
0.2-1.0 and 0.5-3.0 GeV/c, respectively. Baryons are found to have
substantially harder transverse momentum spectra than mesons. The pT region in
which the proton to pion ratio reaches unity in central Au+Au collisions at
sqrt(s_(NN)) = 62.4 GeV fits into a smooth trend as a function of collision
energy. At low transverse momenta, the spectra exhibit a significant deviation
from transverse mass scaling, and when the observed particle yields at very low
pT are compared to extrapolations from higher pT, no significant excess is
found. By comparing our results to Au+Au collisions at sqrt(s_(NN)) = 200 GeV,
we conclude that the net proton yield at midrapidity is proportional to the
number of participant nucleons in the collision.


title:
Prior to "Quark Matter 2006" predictions within retarded jet absorption
  scenario at RHIC

abstract:
  Predictions for some experimental physical observables in nucleus-nucleus
collisions at RHIC energies are presented. I utilize the previous suggestion
that the retarded, by time about 2-3 fm/c, jet absorption in opaque core is a
natural explanation of many experimental data. This assumption is applied only
to the particles with high transverse momentum above 4 GeV/c resulting from
parton fragmentation. I calculate nuclear modification factor $R_{AA}$,
$R_{AA}$ in- and out of the reaction plane, azimuthal anisotropy parameter
$v_2$, jet suppression $I_{AA}$ for the away side jet and its dependence versus
the reaction plane orientation. The systems under consideration are Au+Au,
Cu+Cu, at 200 GeV and 62 GeV. Most of numbers are predictions prior to the
QM2006.


title: Quarkonium suppression from SPS to RHIC (and from p+A to A+A)

abstract:
  Heavy quarkonia production is expected to be sensitive to the formation of a
quark gluon plasma (QGP). It was (and still is with ongoing data analyses)
extensively studied at the CERN SPS, at collision energy $\sqrt{s_{NN}}$ of the
order of 20 GeV. An anomalous suppression was clearly observed. The PHENIX
experiment at RHIC has presented preliminary results that exhibit a similar
amount of $J/\psi$ suppression, at ten times higher collision energy. I review
the results obtained at both facilities. While interpreting and comparing them,
the importance of understanding normal nuclear effects is emphasized. A new
method to derive a reference for Au+Au collisions from the centrality
dependence of d+Au measurements at RHIC is exposed.


title: Gross Properties and Isotopic Phenomena in Spectator Fragmentation

abstract:
  A systematic study of isotopic effects in the break-up of projectile
spectators at relativistic energies has been performed with the ALADiN
spectrometer at the GSI laboratory. Searching for signals of criticality in the
fragment production we have applied the model independent universal
fluctuations theory already proposed to track criticality signals in
multifragmentation to our data. The fluctuation of the largest fragment charge
and of the asymmetry of the two and three largest fragments and their bimodal
distribution have also been analysed.


title:
Comparisons of Statistical Multifragmentation and Evaporation Models for
  Heavy Ion Collisions

abstract:
  The results from ten statistical multifragmentation models have been compared
with each other using selected experimental observables. Even though details in
any single observable may differ, the general trends among models are similar.
Thus these models and similar ones are very good in providing important physics
insights especially for general properties of the primary fragments and the
multifragmentation process. Mean values and ratios of observables are also less
sensitive to individual differences in the models. In addition to
multifragmentation models, we have compared results from five commonly used
evaporation codes. The fluctuations in isotope yield ratios are found to be a
good indicator to evaluate the sequential decay implementation in the code. The
systems and the observables studied here can be used as benchmarks for the
development of statistical multifragmentation models and evaporation codes.


title:
Precision Rosenbluth Measurement of the Proton Elastic Electromagnetic
  Form Factors and Their Ratio at Q^2 = 2.64, 3.20, and 4.10 GeV^2

abstract:
  Due to the inconsistency in the results of the GEp/Gmp ratio of the proton,
as extracted from the Rosenbluth and recoil polarization techniques, high
precision measurements of the e-p elastic scattering cross sections were made
at Q^2 = 2.64, 3.20, and 4.10 GeV^2. Protons were detected, in contrast to
previous measurements where the scattered electrons were detected, which
dramatically decreased epsilon-dependent systematic uncertainties and
corrections. A single spectrometer measured the scattered protons of interest
while simultaneous measurements at Q^2 = 0.5 GeV^2 were carried out using
another spectrometer which served as a luminosity monitor in order to remove
any uncertainties due to beam charge and target density fluctuations. The
absolute uncertainty in the measured cross sections is \approx 3% for both
spectrometers and with relative uncertainties, random and slope, below 1% for
the higher Q^2 protons, and below 1% random and 6% slope for the monitor
spectrometer. The extracted electric and magnetic form factors were determined
to 4%-7% for GEp and 1.5% for GMp. The ratio GEp/Gmp was determined to 4%-7%
and showed mu_p GEp/GMp \approx 1.0. The results of this work are in agreement
with the previous Rosenbluth data and inconsistent with high-Q^2 recoil
polarization results, implying a systematic difference between the two
techniques.


title: Neutrinoless double beta decay experiments

abstract:
  The study of neutrinoless double beta decay is of outmost importance for
neutrino physics. It is considered to be the gold plated channel to probe the
fundamental character of neutrinos and to determine the neutrino mass. From the
experimental point about nine different isotopes are explored for the search.
After a general introduction follows a short discussion on nuclear matrix
element calculations and supportive measurements. The current experimental
status of double beta searches is presented followed by a short discussion of
the ideas and proposals for large scale experiments.


title: The ALTO project at IPN Orsay

abstract:
  In order to probe neutron rich radioactive noble gases produced by
photo-fission, a PARRNe1 experiment (Production d'Atomes Radioactifs Riches en
Neutrons) has been carried out at CERN. The incident electron beam of 50 MeV
was delivered by the LIL machine: LEP Injector Linac. The experiment allowed to
compare under the same conditions two production methods of radioactive noble
gases: fission induced by fast neutrons and photo-fission. The obtained results
show that the use of the electrons is a promising mode to get intense neutron
rich ion beams. Thereafter, the success of this photo-fission experiment, a
conceptual design for the installation at IPN Orsay of a 50 MeV electron
accelerator close to the PARRNe-2 device has been worked out: ALTO Project.
This work has started within a collaboration between IPNO, LAL and CERN groups.


title: Hard Probe Capabilities of CMS in Heavy Ion Collisions at the LHC

abstract:
  Heavy ion collisions at the Large Hadron Collider (LHC) will produce strongly
interacting matter at unprecedented energy densities. At LHC collision
energies, new hard probes of the dense initial collision system will become
readily available. We present an overview of the capabilities of the Compact
Muon Solenoid (CMS) detector to use these probes for a detailed study of QCD
phenomenology at the highest energy densities.


title: Anisotropic Flow from RHIC to the LHC

abstract:
  Anisotropic flow is recognized as one of the main observables providing
information on the early stage of a heavy-ion collision. At RHIC the large
observed anisotropic flow and its successful description by ideal hydrodynamics
is considered evidence for an early onset of thermalization and almost ideal
fluid properties of the produced strongly coupled Quark Gluon Plasma. This
write-up discusses some key RHIC anisotropic flow measurements and for
anisotropic flow at the LHC some predictions.


title: Jet-Like Correlations between Forward and Mid-Rapidity

abstract:
  Mid-rapidity azimuthal correlations probe di-jets originating mainly from
gluon-gluon hard-scattering. Measurements of such correlations have revealed
significant (gluon-)jet modification in central Au+Au collisions. Azimuthal
correlations at forward rapidity with a mid-rapidity high-pt hadron, on the
other hand, are sensitive primarily to quark-gluon hard-scattering and may
probe quark-jet modification in nuclear medium. They may be also sensitive to
the Color Glass Condensate by separating d-side and Au-side in d+Au collisions.
We present the first results on correlations of charged hadrons at forward
rapidity in the STAR FTPCs (2.7 < |eta| < 3.9, pt < 2 GeV/c) with high-pt
charged hadrons at mid-rapidity from the main TPC (|eta| < 1, pt > 3 GeV/c).
Preliminary results from pp, d+Au, and Au+Au collisions at 200 GeV are
compared. Implications of the results are discussed.


title:
Study of the N=50 major shell effect close to $^{78}$Ni : First evidence
  of a weak coupling structure in $^{83}\_{32}$Ge$\_{51}$ and three-proton
  configuration states in $^{81}\_{31}$Ga$\_{50}$

abstract:
  New levels were attributed to $^{81}\_{31}$Ga$\_{50}$ and
$^{83}\_{32}$Ge$\_{51}$ which were fed by the $\beta$-decay of their respective
mother nuclei $^{81}\_{30}$Zn$\_{51}$ and $^{83}\_{31}$Ga$\_{52}$ produced by
fission at the "PARRNe" ISOL set-up installed at the Tandem accelerator of the
Institut de Physique Nucl\'eaire, Orsay. We show that the low energy structure
of $^{81}\_{31}$Ga$\_{50}$ and $^{83}\_{32}$Ge$\_{51}$ can easily be explained
within the natural hypothesis of a strong energy gap at N=50 and a doubly-magic
character for $^{78}$Ni.


title: Isospin Diffusion Observables in heavy ion reactions

abstract:
  Collisions of 112Sn and 124Sn nuclei, which differ in their isospin
asymmetry, provide information about the rate of isospin diffusion and
equilibration. While several different probes can provide accurate diffusion
measurements, the ratios of the mirror nuclei may be the simplest and most
promising one. Ratios of the mass seven mirror nuclei yields are analyzed to
show the rapidity, transverse momentum and impact parameter dependence of
isospin diffusion.


title: Experimental observables on nuclear liquid gas phase transition

abstract:
  Progress on nuclear liquid gas phase transition (LGPT) or critical behavior
has been simply reviewed and some signals of LGPT in heavy ion collisions,
especially in NIMROD data, are focused. These signals include the power-law
charge distribution, the largest fluctuation of the fragment observables, the
nuclear Zipf law, caloric curve and critical exponent analysis etc.


title: Latest Results on the Hot-Dense Partonic Matter at RHIC

abstract:
  At the Relativistic Heavy Ion Collider (RHIC) collisions of heavy ions at
nucleon-nucleon energies of 200 GeV appear to have created a new form of matter
thought to be a deconfined state of the partons that ordinarily are bound in
nucleons.We discuss the evidence that a thermalized partonic medium, usually
called a Quark Gluon Plasma (QGP), has been produced. Then we discuss the
effect of this high-density medium on the production of jets and their pair
correlations. Next we look at direct photons as a clean electro-magnetic probe
to constrain the initial hard scatterings. Finally we review the developing
picture for the effect of this medium on the production of open heavy quarks
and on the screening by the QGP of heavy-quark bound states.


title: Performance of An Axial Gas Ionization Detector

abstract:
  An axial gas ionization chamber has been fabricated for use as a $\Delta E$
detector in heavy ion induced nuclear reactions. Different operating parameters
such as gas type, pressure, anode voltage and anode structures have been
optimized. The transparency of the anode structure is observed to play an
important role in improving the energy resolution of the detector.


title: Inelastic Scatterings of Entangled Mossbauer Gammas

abstract:
  We report the observation of the temperature-dependent inelastic scattering
of three entangled Mossbauer gammas in the time-resolved Mossbauer
spectroscopy. Recently, the long-lived E3 Mossbauer transition of rhodium
generated by bremsstrahlung irradiation has been reported. Two kinds of X-rays
with the fast decay are attributed to the tri-photon effect. They are
tri-photon pile-up of rhodium K X-rays and the high-Z impurity K X-rays. Energy
of the particular K emission is higher than the sum energy of two Mossbauer
gammas. This letter reports new discoveries by cooling down the sample using
liquid nitrogen, namely the collective anomalous emission of entangled
Mossbauer gammas. The enhancement of inelastic scatterings at low temperature
such as rhodium K satellites is attributed to this entanglement.


title:
Operation of a high purity germanium crystal in liquid argon as a
  Compton suppressed radiation spectrometer

abstract:
  A high purity germanium crystal was operated in liquid argon as a Compton
suppressed radiation spectrometer. Spectroscopic quality resolution of less
than 1% of the full-width half maximum of full energy deposition peaks was
demonstrated. The construction of the small apparatus used to obtain these
results is reported. The design concept is to use the liquid argon bath to both
cool the germanium crystal to operating temperatures and act as a scintillating
veto. The scintillation light from the liquid argon can veto cosmic-rays,
external primordial radiation, and gamma radiation that does not fully deposit
within the germanium crystal. This technique was investigated for its potential
impact on ultra-low background gamma-ray spectroscopy. This work is based on a
concept initially developed for future germanium-based neutrinoless double-beta
decay experiments.


title:
Constraining the density dependence of the symmetry energy in the
  nuclear equation of state using heavy ion beams

abstract:
  The density dependence of the symmetry energy in the equation of state of
asymmetric nuclear matter (N/Z $>$ 1) is important for understanding the
structure of systems as diverse as the atomic nuclei and neutron stars. Due to
a proper lack of understanding of the basic nucleon-nucleon interaction for
matters that are highly asymmetric and at non-normal nuclear density, this very
important quantity has remained largely unconstrained. Recent studies using
beams from the Cyclotron Institute of Texas A$&$M University, constraining the
density dependence of the symmetry energy, is presented. A dependence of the
form E$_{sym}(\rho)$ = C($\rho/\rho_{o})^{\gamma}$, where C = 31.6 MeV and
$\gamma$ = 0.69, is obtained from the dynamical and statistical model analysis.
Their implications to both astrophysical and nuclear physics studies are
discussed.


title:
Measurement of the $\nu_e$ and Total $^{8}$B Solar Neutrino Fluxes with
  the Sudbury Neutrino Observatory Phase I Data Set

abstract:
  This article provides the complete description of results from the Phase I
data set of the Sudbury Neutrino Observatory (SNO). The Phase I data set is
based on a 0.65 kt-year exposure of heavy water to the solar $^8$B neutrino
flux. Included here are details of the SNO physics and detector model,
evaluations of systematic uncertainties, and estimates of backgrounds. Also
discussed are SNO's approach to statistical extraction of the signals from the
three neutrino reactions (charged current, neutral current, and elastic
scattering) and the results of a search for a day-night asymmetry in the
$\nu_e$ flux. Under the assumption that the $^8$B spectrum is undistorted, the
measurements from this phase yield a solar $\nu_e$ flux of $\phi(\nu_e) =
  1.76^{+0.05}_{-0.05}{(stat.)}^{+0.09}_{-0.09} {(syst.)}
  \times 10^{6}$ cm$^{-2}$ s$^{-1}$, and a non-$\nu_e$ component
$\phi(\nu_{\mu\tau}) =
  3.41^{+0.45}_{-0.45}{(stat.)}^{+0.48}_{-0.45} {(syst.)}
  \times 10^{6}$ cm$^{-2}$ s$^{-1}$. The sum of these components provides a
total flux in excellent agreement with the predictions of Standard Solar
Models. The day-night asymmetry in the $\nu_e$ flux is found to be $A_{e} = 7.0
\pm 4.9 \mathrm{(stat.)^{+1.3}_{-1.2}}% \mathrm{(sys.)}$, when the asymmetry in
the total flux is constrained to be zero.


title:
Nuclear Modification Factor for Charged Pions and Protons at Forward
  Rapidity in Central Au+Au Collisions at 200 GeV

abstract:
  We present spectra of charged pions and protons in 0-10% central Au+Au
collisions at $\sqrt{s_{NN}}=200$ GeV at mid-rapidity ($y=0$) and forward
pseudorapidity ($\eta=2.2$) measured with the BRAHMS experiment at RHIC. The
spectra are compared to spectra from p+p collisions at the same energy scaled
by the number of binary collisions. The resulting nuclear modification factors
for central Au+Au collisions at both $y=0$ and $\eta=2.2$ exhibit suppression
for charged pions but not for (anti-)protons at intermediate $p_T$. The
$\bar{p}/\pi^-$ ratios have been measured up to $p_T\sim 3$ GeV/$c$ at the two
rapidities and the results indicate that a significant fraction of the charged
hadrons produced at intermediate $p_T$ range are (anti-)protons at both
mid-rapidity and $\eta = 2.2$.


title:
Double Spin Asymmetries A_NN and A_SS at sqrt{s}=200 GeV in Polarized
  Proton-Proton Elastic Scattering at RHIC

abstract:
  We present the first measurements of the double spin asymmetries A_NN and
A_SS at sqrt{s}=200 GeV, obtained by the pp2pp experiment using polarized
proton beams at the Relativistic Heavy Ion Collider (RHIC). The data were
collected in the four momentum transfer t range 0.01<|t|<0.03 (GeV/c)^2. The
measured asymmetries, which are consistent with zero, allow us to estimate
upper limits on the double helicity-flip amplitudes phi_2 and phi_4 at small t
as well as on the difference Delta(sigma_T) between the total cross sections
for transversely polarized protons with antiparallel or parallel spin
orientations.


title:
Peripheral fragmentation of relativistic $^{11}$B nuclei in
  photoemulsion

abstract:
  Experimental results on peripheral fragmentation of relativistic $^{11}$B
nuclei are presented. In the experiment the emulsions exposured to $^{11}$B
beam with momentum 2.75 A GeV/c at the JINR Nuclotron are used. The relative
probability of various fragmentation channels for nucleus breakups (class A)
and more violent peripheral interactions (class B) have been determined. For
classes under investigations the sum of the fragment charges in narrow forward
cone is equal to the projectile charge, but in the events of class A there are
no secondary particles and in the events of class B there are. In both classes
the main channels is $^{11}$B$\to$2He+X: 62% and 50%, corresponding. The main
channel $^{11}$B$\to$2(Z$_{fr}$=2)+(Z$_{fr}$=1) was investigated in details.
  Momentum measurements of single-charged fragments have been done to determine
number of p, d and t in the channel. This way it was found that the ratio
N$_{p}$ : N$_{d}$ : N$_{t}$ is about 1:1:1 for
  $^{11}$B nuclei dissociation and about 15:5:1 for peripheral interactions of
$^{11}$B nuclei.


title: Global Observables at RHIC

abstract:
  Main characteristics of the charged particle dN_ch/deta and transverse energy
dE_T/deta production measured in Heavy Ion collisions at RHIC energies are
presented in this article. Transformation of the pseudo-rapidity shape,
relation to the incident energy and centrality profile are described in a
systematic way. Centrality profile is shown to be closely bound to the number
of nucleons participating in the collisions, at the same time an alternative
approach to study the centrality behavior is also discussed.


title:
Systematics of pion emission in heavy ion collisions in the 1A GeV
  regime

abstract:
  Using the large acceptance apparatus FOPI, we study pion emission in the
reactions (energies in GeV/nucleon are given in parentheses): 40Ca+40Ca (0.4,
0.6, 0.8, 1.0, 1.5, 1.93), 96Ru+96Ru (0.4, 1.0, 1.5), 96Zr+96Zr (0.4, 1.0,
1.5), 197Au+197Au (0.4, 0.6, 0.8, 1.0, 1.2, 1.5). The observables include
longitudinal and transverse rapidity distributions and stopping, polar
anisotropies, pion multiplicities, transverse momentum spectra, ratios for
positively and negatively charged pions of average transverse momenta and of
yields, directed flow, elliptic flow. The data are compared to earlier data
where possible and to transport model simulations.


title:
Investigation of the reaction pp->p K0 pi+ Lambda in search of the
  pentaquark

abstract:
  The reaction pp->p K0 pi+ Lambda has been studied with the ANKE spectrometer
at COSY-Juelich at a beam momentum of 3.65 GeV/c in order to search for a
possible signal of the pentaquark Theta+(1540), decaying into the p K0 system.
By detecting four charged particles in the final state, the K0 and the Lambda
have been reconstructed to tag strangeness production. It has been found that
the pi+ Lambda missing-mass spectrum displays no significant signal expected
from the Theta+(1540) excitation. The total cross section for the reaction
pp->p K0 pi+ Lambda has been deduced, as well as an upper limit for the Theta+
production cross section. The intermediate Delta++ K0 Lambda state is found to
provide a significant contribution to the reaction.


title: Supersonic Jets in Relativistic Heavy-Ion Collisions

abstract:
  Mach-cone shock waves were proposed to explain the broad and perhaps
double-peaked away-side 2-particle jet-correlations at RHIC; however, other
mechanisms cannot be ruled out. Three-particle jet-correlation is needed in
order to distinguish various physics mechanisms. In this talk the 3-particle
jet-correlation measurements are presented and their implications are
discussed.


title: Moment Analysis and Zipf Law

abstract:
  The moment analysis method and nuclear Zipf's law of fragment size
distributions are reviewed to study nuclear disassembly. In this report, we
present a compilation of both theoretical and experimental studies on moment
analysis and Zipf law performed so far. The relationship of both methods to a
possible critical behavior or phase transition of nuclear disassembly is
discussed. In addition, scaled factorial moments and intermittency are
reviewed.


title:
What do elliptic flow measurements tell us about the matter created in
  the little Bang at RHIC?

abstract:
  Elliptic flow measurements are presented and discussed with emphasis on the
hydrodynamic character of the hot and dense QCD matter created in heavy ion
collisions at RHIC. Predictions from perfect fluid hydrodynamics for the
scaling of the elliptic flow coefficient $v_2$ with eccentricity, system size
and transverse energy are validated. A universal scaling for the flow of both
mesons and baryons is observed for a broad transverse kinetic energy range when
quark number scaling is employed. This suggests a new state of nuclear matter
at extremely high density and temperature whose primary constituents have the
quantum numbers of quarks and anti-quarks in chemical equilibrium. The scaled
flow is used to constrain estimates for several transport coefficients
including the sound speed $c_s$, shear viscosity to entropy ratio $\eta/s$,
diffusion coefficient ($D_c$) and sound attenuation length ($\Gamma$). The
estimated value $\eta/s \sim 0.1$, is close to the absolute lower bound
($1/4\pi$), and may signal thermodynamic trajectories for the decaying matter
which lie close to the QCD critical end point.


title:
Baryon - baryon correlations in Au+Au collisions at sqrt(sNN)= 62 GeV
  and sqrt(sNN)= 200 GeV, measured in the STAR experiment at RHIC

abstract:
  Particle correlations at small relative velocities can be used to study the
space-time evolution of hot and expanding system created in heavy ion
collisions. Baryon and antibaryon source sizes extracted from baryon-baryon
correlations complement the information deduced from the correlation studies of
identical pions. Correlations of non-identical particles are sensitive also to
the space-time asymmetry of their emission. High statistics data set of STAR
experiment allows us to present the results of baryon-baryon correlation
measurements at various centralities and energies, as well as to take carefully
into account the particle identification probability and the fraction of
primary baryons and antibaryons. Preliminary results show significant
contribution of annihilation channel in baryon-antibaryon correlations.


title: Overview of Charm Physics at RHIC

abstract:
  Heavy-quark production provides a sensitive probe of the gluon structure of
nucleons and its modication in nuclei. It is also a key probe of the hot-dense
matter created in heavy-ion collisions. We will discuss the physics issues
involved, as seen in quarkonia and open heavy-quark production, starting with
those observed in proton-proton collisions. Then cold nuclear matter effects on
heavy-quark production including shadowing, gluon saturation, energy loss and
absorption will be reviewed in the context of recent proton-nucleus and
deuteron-nucleus measurements. Next we survey the most recent measurements of
open-charm and J/Psi's in heavy-ion collisions at RHIC and their
interpretation. We discuss the high-pT suppression and flow of open charm in
terms of energy loss and thermalization and, for J/Psi, contrast explanations
in terms of screening in a deconfined medium vs. recombination models.


title: Isotopic effects in multifragmentation and the nuclear equation of state

abstract:
  Isotopic effects in spectator fragmentations following heavy-ion collisions
at relativistic energies are investigated using data from recent exclusive
experiments with SIS beams at GSI. Reactions of 12C on 112,124Sn at incident
energies 300 and 600 MeV per nucleon were studied with the INDRA multidetector
while the fragmentation of stable 124Sn and radioactive 107Sn and 124La
projectiles was studied with the ALADIN spectrometer.
  The global characteristics of the reactions are very similar. This includes
the rise and fall of fragment production and deduced observables as, e.g., the
breakup temperature obtained from double ratios of isotope yields. The mass
distributions depend strongly on the neutron-to-proton ratio of the decaying
system, as expected for a simultaneous statistical breakup. The ratios of
light-isotope yields from neutron-rich and neutron-poor systems follow the law
of isoscaling. The deduced scaling parameters decrease strongly with increasing
centrality to values smaller than 50% of those obtained for the peripheral
event groups. This is not compensated by an equivalent rise of the breakup
temperatures which suggests a reduction of the symmetry term required in a
liquid-drop description of the fragments at freeze-out.


title:
Measurement of the neutron capture cross section of the s-only isotope
  204Pb from 1 eV to 440 keV

abstract:
  The neutron capture cross section of 204Pb has been measured at the CERN
n_TOF installation with high resolution in the energy range from 1 eV to 440
keV. An R-matrix analysis of the resolved resonance region, between 1 eV and
100 keV, was carried out using the SAMMY code. In the interval between 100 keV
and 440 keV we report the average capture cross section. The background in the
entire neutron energy range could be reliably determined from the measurement
of a 208Pb sample. Other systematic effects in this measurement could be
investigated and precisely corrected by means of detailed Monte Carlo
simulations. We obtain a Maxwellian average capture cross section for 204Pb at
kT=30 keV of 79(3) mb, in agreement with previous experiments. However our
cross section at kT=5 keV is about 35% larger than the values reported so far.
The implications of the new cross section for the s-process abundance
contributions in the Pb/Bi region are discussed.


title: The 139La(n,gamma) cross section: key for the onset of the s process

abstract:
  The nuclear resonance parameters and the capture cross section of the neutron
magic isotope 139La has been measured n_TOF. The description of the
experimental apparata is followed by the data analysis procedures. We extracted
the resonance parameters, the main nuclear quantities such as the resonance
integral, the average gamma widths for s- and p-waves, the nuclear level
densities and the neutron strength functions. These results represent a
signifcant improvement over previous data. The deduced Maxwellian-averaged
capture cross sections are important for the interpretation of the most recent
spectroscopic observations in low metallicity stars.


title:
Universal anti-baryon density in $e^+e^-$,$\gamma p$, pp, pA and AA
  collisions

abstract:
  We compiled the systematical measurements of anti-nucleus production in
ultra-relativistic heavy ion collisions as well as those in $pp$, $p\bar{p}$,
$\gamma p$ and $e^{+}e^{-}$ at various beam energies. The anti-baryon phase
space density inferred from $\bar{d}/\bar{p}$ ratio in $A+A$, $p+A$,
$pp(\bar{p})$ and $\gamma p$ collisions is found to follow a universal
distribution as a function of center of mass of beam energy and can be
described in a statistical model. We demonstrated that anti-baryon density in
all the collisions is the highest when the collisions are dominated by the
processes of $g+g$ or $\bar{q}+g$. In $e^+e^-$ collisions at LEP, the cross
section of $q\bar{q}g$ is suppressed by a factor of strong coupling constant
$\alpha_s$ relative to $q\bar{q}$. This can consistently explain the $\bar{d}$
suppression observed by ALEPH relative to that in $e^+e^-\to ggg$ by ARGUS. We
discuss the implications to the baryon enhancement at high transverse momentum
at RHIC when jet is quenched.


title:
Centrality Dependence of pi^0 and eta Production at Large Transverse
  Momentum in sqrt(s_NN) = 200 GeV d+Au Collisions

abstract:
  The dependence of transverse momentum spectra of neutral pions and eta mesons
with p_T <16 GeV/c and p_T < 12 GeV/c, respectively, on the centrality of the
collision has been measured at mid-rapidity by the PHENIX experiment at RHIC in
d+Au collisions at sqrt(s_(NN)) = 200 GeV. The measured yields are compared to
those in p + p collisions at the same sqrt(s_(NN)) scaled by the number of
underlying nucleon-nucleon collisions in d+Au. At all centralities the yield
ratios show no suppression, in contrast to the strong suppression seen for
central Au+Au collisions at RHIC. Only a weak p_T and centrality dependence can
be observed.


title:
System Size, Energy, Pseudorapidity, and Centrality Dependence of
  Elliptic Flow

abstract:
  This paper presents measurements of the elliptic flow of charged particles as
a function of pseudorapidity and centrality from Cu-Cu collisions at 62.4 and
200 GeV using the PHOBOS detector at the Relativistic Heavy Ion Collider
(RHIC). The elliptic flow in Cu-Cu collisions is found to be significant even
for the most central events. For comparison with the Au-Au results, it is found
that the detailed way in which the collision geometry (eccentricity) is
estimated is of critical importance when scaling out system-size effects. A new
form of eccentricity, called the participant eccentricity, is introduced which
yields a scaled elliptic flow in the Cu-Cu system that has the same relative
magnitude and qualitative features as that in the Au-Au system.


title:
Energy and system size dependence of elliptic flow: using rapidity gaps
  to suppress non-flow contribution

abstract:
  In this talk I present new STAR results on measurements of integrated
elliptic flow at midrapidity in Au+Au and Cu+Cu collisions at
$\sqrt{s_{NN}}=$200 and 62 GeV energies. These results have been obtained from
azimuthal correlations between particles in the main STAR TPC and two forward
TPCs, and are to a large extent free from so-called non-flow correlations.
These results along with the previously reported values of ``participant''
eccentricity taking into account eccentricity fluctuations are used for testing
the $v_2/\eps$ scaling, which is found to hold relatively well.


title: Resonance capture cross section of 207Pb

abstract:
  The radiative neutron capture cross section of 207Pb has been measured at the
CERN neutron time of flight installation n_TOF using the pulse height weighting
technique in the resolved energy region. The measurement has been performed
with an optimized setup of two C6D6 scintillation detectors, which allowed us
to reduce scattered neutron backgrounds down to a negligible level. Resonance
parameters and radiative kernels have been determined for 16 resonances by
means of an R-matrix analysis in the neutron energy range from 3 keV to 320
keV. Good agreement with previous measurements was found at low neutron
energies, whereas substantial discrepancies appear beyond 45 keV. With the
present results, we obtain an s-process contribution of 77(8)% to the solar
abundance of 207Pb. This corresponds to an r-process component of 23(8)%, which
is important for deriving the U/Th ages of metal poor halo stars.


title: New measurement of neutron capture resonances of 209Bi

abstract:
  The neutron capture cross section of Bi209 has been measured at the CERN n
TOF facility by employing the pulse-height-weighting technique. Improvements
over previous measurements are mainly because of an optimized detection system,
which led to a practically negligible neutron sensitivity. Additional
experimental sources of systematic error, such as the electronic threshold in
the detectors, summing of gamma-rays, internal electron conversion, and the
isomeric state in bismuth, have been taken into account. Gamma-ray absorption
effects inside the sample have been corrected by employing a nonpolynomial
weighting function. Because Bi209 is the last stable isotope in the reaction
path of the stellar s-process, the Maxwellian averaged capture cross section is
important for the recycling of the reaction flow by alpha-decays. In the
relevant stellar range of thermal energies between kT=5 and 8 keV our new
capture rate is about 16% higher than the presently accepted value used for
nucleosynthesis calculations. At this low temperature an important part of the
heavy Pb-Bi isotopes are supposed to be synthesized by the s-process in the He
shells of low mass, thermally pulsing asymptotic giant branch stars. With the
improved set of cross sections we obtain an s-process fraction of 19(3)% of the
solar bismuth abundance, resulting in an r-process residual of 81(3)%. The
present (n,gamma) cross-section measurement is also of relevance for the design
of accelerator driven systems based on a liquid metal Pb/Bi spallation target.


title:
Crossover from a fission-evaporation scenario towards multifragmentation
  in spallation reactions

abstract:
  Mostly for the purpose of applications for the energy and the environment and
for the design of sources of neutrons or exotic nuclides, intense research has
been dedicated to spallation, induced by protons or light projectiles at
incident energies of around 1 GeV. In this energy range, while
multifragmentation has still a minor share in the total reaction cross section,
it was observed to have, together with fission, a prominent role in the
production and the kinematics of intermediate-mass fragments, so as to
condition the whole production of light and heavy nuclides. The experimental
observables we dispose of attribute rather elusive properties to the
intermediate-mass fragments and do not allow to classify them within one
exclusive picture which is either multifragmentation or fission. Indeed, these
two decay mechanisms, driven by different kinds of instabilities, exhibit
behaviours which are closely comparable. High-resolution measurements of the
reaction kinematics trace the way for probing finer features of the reaction
kinematics.


title: The Proto Type of Shanghai Laser Electron Gamma Source at 100 MeV LINAC

abstract:
  The design for the proto type of the Shanghai Laser Electron Gamma Source
(SLEGS) at the Shanghai Synchrotron Radiation Facility (SSRF) is introduced.
Some detailed descriptions for design of related instruments are provided. The
proto type can produce X-ray with energy of 10 keV order. A description of the
kinematics of Compton backscattering mechanism and the related simulation
results are presented and discussed. The backgrounds from dipole magnet and
bremsstrahlung are estimated and the signal-noise ratio is also given.


title:
DDbar Correlations probing Thermalization in High-Energy Nuclear
  Collisions

abstract:
  We propose to measure azimuthal correlations of heavy-flavor hadrons to
address the status of thermalization at the partonic stage of light quarks and
gluons in high-energy nuclear collisions. In particular, we show that hadronic
interactions at the late stage cannot significantly disturb the initial
back-to-back azimuthal correlations of DDbar pairs. Thus, a decrease or the
complete absence of these initial correlations does indicate frequent
interactions of heavy-flavor quarks and also light partons in the partonic
stage, which are essential for the early thermalization of light partons.


title: Fluctuation studies in STAR

abstract:
  Study of event by event fluctuations of thermodynamic quantities offer us
more insight about the hot and dense matter created in the relativistic heavy
ion collisions. In this review the recent results on these studies carried out
by the STAR collaboration are presented.


title: Imaging with Scattered Neutrons

abstract:
  We describe a novel experimental technique for neutron imaging with scattered
neutrons. These scattered neutrons are of interest for condensed matter
physics, because they permit to reveal the local distribution of incoherent and
coherent scattering within a sample. In contrast to standard attenuation based
imaging, scattered neutron imaging distinguishes between the scattering cross
section and the total attenuation cross section including absorption. First
successful low-noise millimeter-resolution images by scattered neutron
radiography and tomography are presented.


title: Energy Dependence of Multiplicity Fluctuations in Heavy Ion Collisions

abstract:
  The energy dependence of multiplicity fluctuations was studied for the most
central Pb+Pb collisions at 20A, 30A, 40A, 80A and 158A GeV by the NA49
experiment at the CERN SPS. The multiplicity distribution for negatively and
positively charged hadrons is significantly narrower than Poisson one for all
energies. No significant structure in energy dependence of the scaled variance
of multiplicity fluctuations is observed. The measured scaled variance is lower
than the one predicted by the grand-canonical formulation of the
hadron-resonance gas model. The results for scaled variance are in approximate
agreement with the string-hadronic model UrQMD.


title: Multiplicity Fluctuations in Heavy Ion Collisions at CERN SPS

abstract:
  The system size and centrality dependence of multiplicity fluctuations in
nuclear collisions at $158A$ GeV as well as the energy dependence for the most
central $Pb+Pb$ collisions were studied by the NA49 experiment at CERN SPS. A
strong increase of fluctuations was observed with decreasing centrality in
$C+C$, $Si+Si$ and $Pb+Pb$ collisions. The string hadronic models (UrQMD,
Venus, HIJING, HSD) can not reproduce the observed increase. This may indicate
a strong mixing of target and projectile contribution in a broad rapidity
range. For the most central collisions at all SPS energies multiplicity
distributions are significantly narrower than a corresponding Poisson one both
for negatively and positively charged hadrons. The UrQMD model seems to
reproduce the measured values on scaled variance. Statistical model
calculations overpredict results when conservation laws are not taken into
account.


title: Dilepton production in pp and CC collisions with HADES

abstract:
  Dilepton production has been measured with HADES, the "High Acceptance
DiElectron Spectrometer". In pp collisions at 2.2GeV kinetic beam energy,
exclusive eta production and the Dalitz decay eta -> gamma e+e- has been
reconstructed. The electromagnetic form factor is well in agreement with
existing data. In addition, an inclusive e+e- spectrum from the C+C reaction at
2AGeV is presented and compared with a thermal model.


title: Review of Structures in the Energy Dependence of Hadronic Observables

abstract:
  The energy dependence of various hadronic observables is reviewed. The study
of their evolution from AGS over SPS to the highest RHIC energy reveals
interesting features, which might locate a possible onset of deconfinement.
These observables include transverse spectra of different particle types and
their total multiplicities, as well as elliptic flow. In this context
especially the observation of a maximum of the strangeness to pion ratio is of
particular interest, since on one hand it has been predicted as a signal for
the onset of deconfinement but on the other hand also statistical model
calculations exhibit qualitatively similar structures. The sharpness of these
features is however not reproduced by hadronic scenarios.
  The significance of these structures will be discussed in this contribution.
Other observables, such as radius parameters from Bose-Einstein correlations,
on the other hand do not exhibit any structure in their energy dependence.


title:
A method for determining event-by-event elliptic flow fluctuations based
  on the first-order event plane in heavy-ion collisions

abstract:
  A new method is presented for determining event-by-event fluctuations of
elliptic flow, $v_2$, using first-order event planes. By studying the
event-by-event distributions of $v_2$ observables and first-order event-plane
observables, average flow $\avg{v_2}$ and event-by-event flow fluctuations can
be separately determined, making appropriate allowance for the effects of
finite multiplicity and non-flow. The method has been tested with Monte Carlo
simulations. The connection between flow fluctuations and fluctuations of the
initial-state participant eccentricity is discussed.


title: Jets and Parton Energy Loss at RHIC: Experimental Status

abstract:
  Experimental evidence from RHIC indicates that matter having an energy
density far in excess of the value required for the creation of a deconfined
phase is produced in ultrarelativistic Au+Au collisions at a center of mass
energy of 200 GeV. This matter thermalizes rapidly, is strongly interacting,
and displays hydrodynamic properties akin to a fluid with very low viscosity.
Studies of the interaction of hard scattered partons with this matter provide
an important probe of its properties. In fact, studies of the suppression of
high-p_T hadrons have been one of the key arguments used by the RHIC
experiments that the matter created is something fundamentally new and
exciting. I review the current experimental picture that has emerged from the
data collected at RHIC, with an emphasis on the effort to extract quantitative
measurements from the suppression of high-p_T hadrons.


title: Anisotropic Flow of Strange Particles at SPS

abstract:
  The elliptic flow for Lambda hyperons and K0s mesons was measured by the NA49
experiment in semicentral Pb+Pb collisions at 158A GeV. The standard method of
correlating particles with an event plane has been used. Measurements of v2
near mid-rapidity are reported as a function of centrality, rapidity and
transverse momentum. Elliptic flow of Lambda and K0s particles increases both
with the impact parameter and with the transverse momentum. It is compared with
v2 for pions and protons as well as with various model predictions. The NA49
results are compared with data from NA45/CERES and STAR experiments.


title: Direct Photons in Heavy-Ion Collisions

abstract:
  A brief overview of direct-photon measurements in ultra-relativistic
nucleus-nucleus collisions is given. The results for Pb+Pb collisions at
sqrt{s_NN} = 17.3 GeV and for Au+Au collisions at sqrt{s_NN} = 200 GeV are
compared to estimates of the direct-photon yield from hard scattering. Both
results leave room for a significant thermal photon component. A description
purely based on hard scattering processes, however, is not ruled out so far.


title:
Numerical simulations on cleaning the neutron trap for measuring the
  neutron lifetime

abstract:
  We present the results of numerical simulations of the dynamical behavior of
trajectories of ultra cold neutrons (UCN) in a magnetic trap. The main goal of
our simulations was to optimize the trap parameters in order to minimize the
characteristic times for removing from the trap those untrapped neutrons with
relatively long escape times (cleaning the trap). Our results demonstrate that,
by a proper choice of the trap parameters cleaning times can be reduced to 15
sec, or even less. Many other dynamical characteristics of the neutrons in the
trap, including the conservation of the adiabatic invariant which characterizes
the orientation of the magnetic moment along the local magnetic field, are also
discussed.

categories: nucl-ex astro-ph nucl-th physics.atom-ph physics.comp-ph quant-ph


title:
High transverse momentum eta meson production in p+p, d+Au and Au+Au
  collisions at sqrt(s_NN) = 200 GeV

abstract:
  Inclusive transverse momentum spectra of eta mesons in the range p_T~2-12
GeV/c have been measured at mid-rapidity (|\eta| < 0,35) by the PHENIX
experiment at RHIC in p+p, d+Au and Au+Au collisions at sqrt(s_NN) = 200 GeV.
The eta mesons are reconstructed through their eta--> \gamma\gamma channel for
the three colliding systems as well as through the eta-->pi^0 pi+ pi- decay
mode in p+p and d+Au collisions. The nuclear modification factor in d+Au
collisions, R_dAu(p_T~1.0-1.1, suggests at most only modest p_T broadening
("Cronin enhancement"). In central Au+Au reactions, the eta yields are
significantly suppressed, with R_AuAu(pT)~0.2. The ratio of eta to pi^0 yields
is approximately constant as a function of p_T for the three colliding systems
in agreement with the high-p_T world average of R_eta/pi^0 \approx 0.5 in
hadron-hadron, hadron-nucleus, and nucleus-nucleus collisions for a wide range
of center-of-mass energies [sqrt(s_NN)~3-1800 GeV] as well as, for high scaled
momentum x_p, in e+e- annihilations at sqrt(s)=91.2 GeV. These results are
consistent with a scenario where high-p_T eta production in nuclear collisions
at RHIC is largely unaffected by initial-state effects, but where light-quark
mesons (pi^0;eta) are equally suppressed due to final-state interactions of the
parent partons in the dense medium produced in Au+Au reactions.


title:
A Detailed Study of High-pT Neutral Pion Suppression and Azimuthal
  Anisotropy in Au+Au Collisions at \sqrt{s_{NN}} = 200 GeV

abstract:
  Measurements of neutral pion production at midrapidity in sqrt(s_NN) = 200
GeV Au+Au collisions as a function of transverse momentum, p_T, collision
centrality, and angle with respect to reaction plane are presented. The data
represent the final pi^0 results from the PHENIX experiment for the first RHIC
Au+Au run at design center-of-mass-energy. They include additional data
obtained using the PHENIX Level-2 trigger with more than a factor of three
increase in statistics over previously published results for p_T > 6 GeV/c. We
evaluate the suppression in the yield of high-p_T pi^0's relative to point-like
scaling expectations using the nuclear modification factor R_AA. We present the
p_T dependence of R_AA for nine bins in collision centrality. We separately
integrate R_AA over larger p_T bins to show more precisely the centrality
dependence of the high-p_T suppression. We then evaluate the dependence of the
high-p_T suppression on the emission angle \Delta\phi of the pions with respect
to event reaction plane for 7 bins in collision centrality. We show that the
yields of high-p_T pi^0's vary strongly with \Delta\phi, consistent with prior
measurements. We show that this variation persists in the most peripheral bin
accessible in this analysis. For the peripheral bins we observe no suppression
for neutral pions produced aligned with the reaction plane while the yield of
pi^0's produced perpendicular to the reaction plane is suppressed by more than
a factor of 2. We analyze the combined centrality and \Delta\phi dependence of
the pi^0 suppression in different p_T bins using different possible
descriptions of parton energy loss dependence on jet path-length averages to
determine whether a single geometric picture can explain the observed
suppression pattern.


title: Review of hard scattering and jet analysis

abstract:
  A review of hard-scattering and jet analysis in p-p and heavy ion collisions
at RHIC is presented in the context of earlier work at the CERN ISR in the
1970's which utilized inclusive single or pairs of hadrons to establish that
high transverse momentum particles in p-p collisions are produced from states
with two roughly back-to-back jets which are the result of scattering of
constituents of the nucleons as described by Quantum Chromodynamics (QCD),
which was developed during the course of those measurements. These techniques
have been used extensively and further developed at RHIC since they are the
only practical method to study hard-scattering and jet phenomena in Au+Au
central collisions at RHIC energies.


title: Electromagnetic Probes at RHIC-II

abstract:
  We summarize how future measurements of electromagnetic (e.m.) probes at the
Relativistic Heavy Ion Collider (RHIC), in connection with theoretical
analysis, can advance our understanding of strongly interacting matter at high
energy densities and temperatures. After a brief survey of the important role
that e.m. probes data have played at the Super Proton Synchrotron (SPS, CERN)
and RHIC to date, we identify key physics objectives and observables that
remain to be addressed to characterize the (strongly interacting) Quark-Gluon
Plasma (sQGP) and associated transition properties at RHIC. These include
medium modifications of vector mesons via low-mass dileptons, a temperature
measurement of the hot phases via continuum radiation, as well as gamma-gamma
correlations to characterize early source sizes. We outline strategies to
establish microscopic matter and transition properties such as the number of
degrees of freedom in the sQGP, the origin of the hadron masses and
manifestations of chiral symmetry restoration, which will require accompanying
but rather well-defined advances in theory. Increased experimental precision,
order of magnitude higher statistics than currently achievable, as well as a
detailed scan of colliding species and energies are then mandatory to achieve
sufficient discrimination power in theoretical interpretations. This increased
precision can be achieved with hardware upgrades to the large RHIC detectors
(PHENIX and STAR) along with at least a factor of ten as increase in luminosity
over the next few years as envisioned for RHIC-II.


title: Strange Particles and Neutron Stars - Experiments at Gsi

abstract:
  Experiments on strangeness production in nucleus-nucleus collisions at SIS
energies address fundamental aspects of modern nuclear physics: the
determination of the nuclear equation-of-state at high baryon densities and the
properties of hadrons in dense nuclear matter. Experimental data and
theoretical results will be reviewed. Future experiments at the FAIR
accelerator aim at the exploration of the QCD phase diagram at highest baryon
densities.


title: Fluctuations of fragment observables

abstract:
  This contribution presents a review of our present theoretical as well as
experimental knowledge of different fluctuation observables relevant to nuclear
multifragmentation. The possible connection between the presence of a
fluctuation peak and the occurrence of a phase transition or a critical
phenomenon is critically analyzed. Many different phenomena can lead both to
the creation and to the suppression of a fluctuation peak. In particular, the
role of constraints due to conservation laws and to data sorting is shown to be
essential. From the experimental point of view, a comparison of the available
fragmentation data reveals that there is a good agreement between different
data sets of basic fluctuation observables, if the fragmenting source is of
comparable size. This compatibility suggests that the fragmentation process is
largely independent of the reaction mechanism (central versus peripheral
collisions, symmetric versus asymmetric systems, light ions versus heavy ion
induced reactions). Configurational energy fluctuations, that may give
important information on the heat capacity of the fragmenting system at the
freeze out stage, are not fully compatible among different data sets and
require further analysis to properly account for Coulomb effects and secondary
decays. Some basic theoretical questions, concerning the interplay between the
dynamics of the collision and the fragmentation process, and the cluster
definition in dense and hot media, are still open and are addressed at the end
of the paper. A comparison with realistic models and/or a quantitative analysis
of the fluctuation properties will be needed to clarify in the next future the
nature of the transition observed from compound nucleus evaporation to
multi-fragment production.


title: Quark-Gluon Matter

abstract:
  A concise review of the experimental and phenomenological progress in
high-energy heavy-ion physics over the past few years is presented. Emphasis is
put on measurements at BNL-RHIC and CERN-SPS which provide information on
fundamental properties of QCD matter at extreme values of temperature, density
and low-x. The new opportunities accessible at the LHC, which may help clarify
some of the current open issues, are also outlined.


title: On the mixing strength in the two lowest 0- states in 208Pb

abstract:
  With a resolution of 3 keV, the two lowest 0- states in 208Pb are identified
by measurements of the reaction 207Pb(d, p) with the Muenchen Q3D magnetic
spectrograph in a region where the average level spacing is 6 keV. Precise
relative spectroscopic factors are determined. Matrix elements of the residual
interaction among one-particle one-hole configurations in a two-level scheme
are derived for the two lowest 0- states in 208Pb. The off-diagonal mixing
strength is determined as 105 +-10(experimental) +-40(systematic) keV.
Measurements of the reaction 208Pb(p,p') via isobaric analog resonances in
209Bi support the structure information obtained.


title: Bimodalities : a survey of experimental data and models

abstract:
  Bimodal distributions of some chosen variables measured in nuclear collisions
were recently proposed as a non ambiguous signature of a first order phase
transition in nuclei. This section presents a compilation of both theoretical
and experimental studies on bimodalities performed so far, in relation with the
liquid-gas phase transition in nuclear matter.


title: Using the Balance Function to study the charge correlations of hadrons

abstract:
  We present the recent Balance Function (BF) results obtained by the NA49
collaboration for the pseudo-rapidity dependence of non-identified charged
particle correlations for two SPS energies. Experimental results indicate a
clear centrality dependence only in the mid-rapidity region. The results of an
energy dependence study of the BF throughout the whole SPS energy range will
also be discussed. In addition, the correlation of identified hadrons is
studied and presented for the first time. The study of hadron correlation has
also been extended in order to cope with the high multiplicity environment that
is expected to be seen at LHC. We will present the latest results from
simulations concerning the extension of these studies to the ALICE experiment.


title:
Correlated Production of p and p^bar in Au+Au Collisions at sqrt(s_NN) =
  200 GeV

abstract:
  Correlations between p and pbar's at transverse momenta typical of enhanced
baryon production in Au+Au collisions are reported. The PHENIX experiment
measures same and opposite sign baryon pairs in Au+Au collisions at sqrt(s_NN)
= 200 GeV. Correlated production of p and p^bar with the trigger particle from
the range 2.5 < p_T < 4.0 GeV/c and the associated particle with 1.8 < p_T <
2.5 GeV/c is observed to be nearly independent of the centrality of the
collisions. Same sign pairs show no correlation at any centrality. The
conditional yield of mesons triggered by baryons (and anti-baryons) and mesons
in the same pT range rises with increasing centrality, except for the most
central collisions, where baryons show a significantly smaller number of
associated mesons. These data are consistent with a picture in which hard
scattered partons produce correlated p and p^bar in the p_T region of the
baryon excess.


title: Elliptic flow, eccentricity and eccentricity fluctuations

abstract:
  Differential studies of elliptic flow are one of the most powerful tools in
studying the initial conditions and dynamical evolution of heavy ion
collisions. The comparison of data from Cu+Cu and Au+Au collisions taken with
the PHOBOS experiment at RHIC provides new information on the interplay between
initial geometry and initial particle density in determining the observed final
state flow pattern. Studies from PHOBOS point to the importance of fluctuations
in the initial state geometry for understanding the Cu+Cu data. We relate the
elliptic flow data to the results of our model studies on initial state
geometry fluctuations and discuss how we will perform measurements of
event-by-event fluctuations in elliptic flow in Au+Au collisions.


title:
Energy Loss and Flow of Heavy Quarks in Au+Au Collisions at sqrt(s_NN) =
  200 GeV

abstract:
  The PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) has
measured electrons from heavy flavor (charm and bottom) decays for 0.3 < p_T <
9 GeV/c at midrapidity (|y| < 0.35) in Au+Au collisions at sqrt(s_NN) = 200
GeV. The nuclear modification factor R_AA relative to p+p collisions shows a
strong suppression in central Au+Au collisions, indicating substantial energy
loss of heavy quarks in the medium produced at RHIC. A large azimuthal
anisotropy, v_2, with respect to the reaction plane is observed for 0.5 < p_T <
5 GeV/c indicating non-zero heavy flavor elliptic flow. Both R_AA and v_2 show
a p_T dependence different from those of neutral pions. A comparison to
transport models which simultaneously describe R_AA(p_T) and v_2(p_T) suggests
that the viscosity to entropy density ratio is close to the conjectured quantum
lower bound, i.e., near a perfect fluid.


title:
System Size and Energy Dependence of Jet-Induced Hadron Pair Correlation
  Shapes in Cu+Cu and Au+Au Collisions at sqrt(s_NN) = 200 and 62.4 GeV

abstract:
  We present azimuthal angle correlations of intermediate transverse momentum
(1-4 GeV/c) hadrons from {dijets} in Cu+Cu and Au+Au collisions at sqrt(s_NN) =
62.4 and 200 GeV. The away-side dijet induced azimuthal correlation is
broadened, non-Gaussian, and peaked away from \Delta\phi=\pi in central and
semi-central collisions in all the systems. The broadening and peak location
are found to depend upon the number of participants in the collision, but not
on the collision energy or beam nuclei. These results are consistent with sound
or shock wave models, but pose challenges to Cherenkov gluon radiation models.


title:
J/psi Production vs Centrality, Transverse Momentum, and Rapidity in
  Au+Au Collisions at sqrt(s_NN) = 200 GeV

abstract:
  The PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) has
measured J/psi production for rapidities 2.2 < y < 2.2 in Au+Au collisions at
sqrt(s_NN) = 200 GeV. The J/psi invariant yield and nuclear modification factor
R_AA as a function of centrality, transverse momentum and rapidity are
reported. A suppression of J/psi relative to binary collision scaling of
proton-proton reaction yields is observed. Models which describe the lower
energy J/Psi data at the Super Proton Synchrotron (SPS) invoking only J/psi
destruction based on the local medium density would predict a significantly
larger suppression at RHIC and more suppression at mid rapidity than at forward
rapidity. Both trends are contradicted by our data.


title:
Evidence for an alpha cluster condensed state in 16O(alpha,alpha') at
  400 MeV

abstract:
  Inelastic $\alpha$ scattering on 16O is studied at 400 MeV by using an ice
target. Near the 4-alpha breakup threshold of 14.4 MeV, a broad peak is
observed at an excitation energy of 13.6+/-0.2 MeV with a width of 0.6+/-0.2
MeV. The spin-parity is estimated to be 0+ from the momentum-transfer
dependence. The observed width is significantly larger than those of the
neighboring 0+ states indicating a state with a well-developed alpha cluster
structure. The magnitude of the cross section is sensitive to the density
distribution of the constituent alpha clusters. The observed cross section is
consistent with the theoretical prediction for the alpha cluster condensed
state characterized by its dilute density distribution with a large
root-mean-square radius of about 4.3 fm.


title:
Modification of the rho meson detected by low-mass electron-positron
  pairs in central Pb-Au collisions at 158 A GeV/c

abstract:
  We present a measurement of $e^+e^-$ pair production in central Pb-Au
collisions at 158$A$ GeV/$c$. As reported earlier, a significant excess of the
$e^+e^-$ pair yield over the expectation from hadron decays is observed. The
improved mass resolution of the present data set, recorded with the upgraded
CERES experiment at the CERN-SPS, allows for a comparison of the data with
different theoretical approaches. The data clearly favor a substantial
in-medium broadening of the $\rho$ spectral function over a density-dependent
shift of the $\rho$ pole mass. The in-medium broadening model implies that
baryon induced interactions are the key mechanism to in-medium modifications of
the $\rho$-meson in the hot fireball at SPS energy.


title:
Longitudinal-Transverse Separations of Structure Functions at Low
  $Q^{2}$ for Hydrogen and Deuterium

abstract:
  We report on a study of the longitudinal to transverse cross section ratio,
$R=\sigma_L/\sigma_T$, at low values of $x$ and $Q^{2}$, as determined from
inclusive inelastic electron-hydrogen and electron-deuterium scattering data
from Jefferson Lab Hall C spanning the four-momentum transfer range 0.06 $ <
Q^{2} < 2.8$ GeV$^{2}$. Even at the lowest values of $Q^{2}$, $R$ remains
nearly constant and does not disappear with decreasing $Q^{2}$, as expected. We
find a nearly identical behaviour for hydrogen and deuterium.


title: Spin Sum Rules and Polarizabilities: Results from Jefferson Lab

abstract:
  The nucleon spin structure has been an active, exciting and intriguing
subject of interest for the last three decades. Recent experimental data on
nucleon spin structure at low to intermediate momentum transfers provide new
information in the confinement regime and the transition region from the
confinement regime to the asymptotic freedom regime. New insight is gained by
exploring moments of spin structure functions and their corresponding sum rules
(i.e. the generalized Gerasimov-Drell-Hearn, Burkhardt-Cottingham and Bjorken).
The Burkhardt-Cottingham sum rule is verified to good accuracy. The spin
structure moments data are compared with Chiral Perturbation Theory
calculations at low momentum transfers. It is found that chiral perturbation
calculations agree reasonably well with the first moment of the spin structure
function $g_1$ at momentum transfer of 0.05 to 0.1 GeV$^2$ but fail to
reproduce the neutron data in the case of the generalized polarizability
$\delta_{LT}$ (the $\delta_{LT}$ puzzle). New data have been taken on the
neutron ($^3$He), the proton and the deuteron at very low $Q^2$ down to 0.02
GeV$^2$. They will provide benchmark tests of Chiral dynamics in the kinematic
region where the Chiral Perturbation theory is expected to work.


title: Low-mass dielectrons from the PHENIX experiment at RHIC

abstract:
  The production of the low-mass dielectrons is considered to be a powerful
tool to study the properties of the hot and dense matter created in the
ultra-relativistic heavy-ion collisions. We present the preliminary results on
the first measurements of the low-mass dielectron continuum in Au+Au collisions
and the phi meson production measured in Au+Au and d+Au collisions at
sqrt{s_NN} = 200 GeV performed by the PHENIX experiment.


title:
Study of the Jet Shape at 920 GeV/c in Proton-Nucleus Intereactions with
  HERA-B Detector

abstract:
  We performed a measurement of differential and integral jet shapes in
proton-carbon, proton-tungsten and proton-aluminium collisions at 920 GeV/c
proton momentum with the HERA-B detector at HERA for the jet transverse
energies in the range 4 < E_T(jet) < 12 GeV. Jets were identified using the
k_T-clustering algorithm. The measurements were performed for the hardest jet
in the event, directed towards the opposite side with respect to the trigger
direction. Jets become narrower with increasing transverse energy and measured
distributions agree well with predictions of the PYTHIA 6.2 model. We do not
observe any significant difference in the jet shape for the carbon and the
aluminium targets. Nevertheless, the transverse energy flow at small and large
radii for the tungsten sample is slightly less than for light nuclei. This
observation indicates some influence of the nuclear environment on the
formation of jets in heavy nuclei, especially at lower transverse energies, 5 <
E_T(jet) < 6 GeV.


title:
Precision measurement of vector and tensor analyzing powers in elastic
  deuteron-proton scattering

abstract:
  High precision vector and tensor analyzing powers of elastic deuteron-proton
d+p scattering have been measured at intermediate energies to investigate
effects of three-nucleon forces (3NF). Angular distribution in the range of
70-120 degree in the center-of mass frame for incident-deuteron energies of 130
and 180 MeV were obtained using the RIKEN facility. The beam polarization was
unambiguously determined by measuring the 12C(d,alpha)10B(2+) reaction at 0
degree. Results of the measurements are compared with state-of-the-art
three-nucleon calculations. The present modeling of nucleon-nucleon forces and
its extension to the three-nucleon system is not sufficient to describe the
high precision data consistently and requires, therefore, further
investigation.


title:
Charm Production at Large Rapidities in p+p and d+Au Collisions at
  PHENIX at RHIC

abstract:
  We study charm production through dimuon and single muon measurements at
forward and backward rapidities in p+p and d+Au collisions with the PHENIX muon
detectors. We also compare open charm to $J/\psi$ yields in the forward and
backward rapidities in d+Au collisions and study the origin of the large
forward and backward asymmetry in open charm production observed by the PHENIX
experiment.


title: Heavy Flavor Production at PHENIX at RHIC

abstract:
  A study of heavy flavor production in different collision systems in various
kinematic regions presents an opportunity to probe cold nuclear medium and hot
dense matter effects. Results from the PHENIX experiment on $J/\psi$ and open
charm production in Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ =200 GeV are
presented. The data show strong $J/\psi$ suppression in central AA collisions,
similar to NA50 results, and strong suppression in high $p_T$ open charm
production. The $J/\psi$ production in Au+Au and d+Au collisions is compared to
understand the cold nuclear medium effects. The data show significant cold
nuclear effects in charm production in d+Au collisions at forward and backward
rapidity ranges.


title: Measurement of tensor analyzing powers in deuteron photodisintegration

abstract:
  New accurate measurement of tensor analyzing powers T20, T21 and T22 in
deuteron photodisintegration has been performed. Wide-aperture non-magnetic
detectors allowed to cover broad kinematic ranges in a single setup: photon
energy = 25 to 600 MeV, proton emission angle in CM = 24 to 48 deg. and 70 to
102 deg. New data provide a significant improvement of a few existing
measurements. The angular dependency of the tensor asymmetries in deuteron
photodisintegration is extracted for the first time.


title:
Production of omega mesons at Large Transverse Momenta in p+p and d+Au
  Collisions at sqrt(s_NN) = 200 GeV

abstract:
  The PHENIX experiment at RHIC has measured the invariant cross section for
omega-meson production at mid-rapidity in the transverse momentum range 2.5 <
p_T < 9.25 GeV/c in p+p and d+Au collisions at sqrt(s_NN) = 200 GeV.
Measurements in two decay channels (omega --> pi^0 pi^+ pi^- and omega --> pi^0
gamma) yield consistent results, and the reconstructed omega mass agrees with
the accepted value within the p_T range of the measurements. The omega/pi^0
ratio is found to be 0.85 +/- 0.05(stat) +/- 0.09(sys) and 0.94 +/- 0.08(stat)
+/- 0.12(sys) in p+p and d+Au collisions respectively, independent of p_T . The
nuclear modification factor R_dA is 1.03 +/- 0.12(stat) +/- 0.21(sys) and 0.83
+/- 0.21(stat) +/- 0.17(sys) in minimum bias and central (0-20%) d+Au
collisions, respectively.


title: Angular Correlations in STAR

abstract:
  The related studies of two-particle correlations and event-by-event
fluctuations have played important roles in the search for new physics through
the experimental study of relativistic heavy ion collisions. We present a
general method of determining minimum-bias two-particle correlations and show
the relationship between these correlations and event-by-event fluctuations.
Data from the STAR experiment at RHIC for Au-Au collisions at $\sqrt{s_{NN}}$ =
62 and 200 GeV will be presented that show the energy and centrality
dependences of angular correlations. This analysis provides a unique method for
studying the interaction of semi-hard scattered partons with the dense medium
produced at RHIC as well as properties of the bulk medium itself, and will shed
new light on the sources of non-statistical fluctuations.