title:
Multi-strange baryon production in Au+Au collisions at top RHIC energy
  as a probe of bulk properties

abstract:
  We report STAR preliminary results on multi-strange baryon production in
Au+Au collisions at sqrt(s_NN)=200 GeV at RHIC. Its implication for the
formation of a new state of matter is discussed. The system size dependence on
the production of strange baryons is investigated to study the onset of strange
quark equilibration in the medium. The nuclear modification factor of Lambda,
Xi and Omega is also presented. Its suppression at p_T>3 GeV/c supports the
formation of a dense interacting medium at RHIC. The spectra of multi-strange
baryons reveal that within a hydro-inspired model, they may decouple prior than
lighter particles and that their flow may be mostly developed at a partonic
level. This idea is emphasized by the measurement of the v_2 of Xi+AntiXi and
Omega+AntiOmega whose behaviour is close to the Lambda+AntiLambda baryon
elliptic flow in the intermediate p_T region where a constituent quark scaling
of v_2 is observed.


title: Study of Deformation Effects in the Charged Particle Emission from 46Ti

abstract:
  The 46Ti compound nucleus, as populated by the fusion-evaporation reaction
27Al + 19F at the bombarding energy of 144 MeV, has been investigated by
charged particle spectroscopy using the multidetector array ICARE at the
VIVITRON tandem facility of the IReS (Strasbourg). The light charged particles
have been measured in coincidence with evaporation residues. The CACARIZO code,
a Monte Carlo implementation of the statistical-model code CASCADE, has been
used to calculate the spectral shapes of evaporated alpha-particles which are
compared with the experimental spectra. This comparison indicates the possible
signature of large deformations of the compound nucleus.


title:
Hindrance of Heavy-ion Fusion at Extreme Sub-Barrier Energies in
  Open-shell Colliding Systems

abstract:
  The excitation function for the fusion-evaporation reaction 64Ni+100Mo has
been measured down to a cross-section of ~5 nb. Extensive coupled-channels
calculations have been performed, which cannot reproduce the steep fall-off of
the excitation function at extreme sub-barrier energies. Thus, this system
exhibits a hindrance for fusion, a phenomenon that has been discovered only
recently. In the S-factor representation introduced to quantify the hindrance,
a maximum is observed at E_s=120.6 MeV, which corresponds to 90% of the
reference energy E_s^ref, a value expected from systematics of closed-shell
systems. A systematic analysis of Ni-induced fusion reactions leading to
compound nuclei with mass A=100-200 is presented in order to explore a possible
dependence of the fusion hindrance on nuclear structure.


title: phi meson production in Au + Au collisions at sqrt{s_{NN} = 200 GeV

abstract:
  We present the results on the mid-rapidity phi meson production in the
K^{+}K^{-} decay channel in Au + Au collisions at sqrt(s_NN) = 200 GeV measured
by the PHENIX experiment at RHIC. The spectral shape of the phi resonance,
studied at different collision centralities, is consistent with the particle
data book. The transverse mass spectra are measured in four centrality bins.
The inverse slopes (T), yields (dN/dy) and particle ratios are studied as a
function of centrality. The nuclear modification factor is measured through the
ratio, R_{CP}, of central to peripheral yields normalized to the number of
nucleon-nucleon collisions. The R_{CP} of the phi mesons is less than unity and
is comparable to that of pions rather than R_{CP} ~ 1 observed for protons and
anti-protons.


title: Neutral pion production in d-Au collisions at sqrt(s_NN) = 200 GeV

abstract:
  In this paper, preliminary results are presented on high-$p_T$ inclusive
neutral pion measurements in d-Au collisions at $\sqrt{s_{\rm NN}}$ = 200 GeV
in the pseudo-rapidity range $0<\eta<1$. The photons of the decay
$pi^0\to\gamma\gamma$ are detected in the Barrel Electromagnetic Calorimeter of
the STAR experiment at RHIC. The analysis of this first BEMC hadron measurement
is described in detail. The results are compared to earlier RHIC findings.
Furthermore, the obtained $\pi^{0}$ invariant differential cross sections show
good agreement with next-to-leading order (NLO) perturbative QCD calculations.


title: GDR Feeding of the Highly-Deformed Band in 42Ca

abstract:
  The gamma-ray spectra from the decay of the GDR in the compound nucleus
reaction 18O+28Si at bombarding energy of 105 MeV have been measured in an
experiment using the EUROBALL IV and HECTOR arrays. The obtained experimental
GDR strength function is highly fragmented, with a low energy (10 MeV)
component, indicating a presence of a large deformation and Coriolis effects.
In addition, the preferential feeding of the highly-deformed band in 42Ca by
this GDR low energy component is observed.


title:
Semihard scattering unraveled from collective dynamics at $\sqrt{s}$=17
  GeV

abstract:
  We present a study of elliptic flow ($v_2$) and two-particle azimuthal
correlations of charged hadrons and high transverse momentum ($p_T$) pions
measured by the CERES experiment in Pb+Au collisions at $\sqrt{s}$~=~17 GeV.
Azimuthal anisotropy $v_2$ increases linearly with $p_T$ to a value of 10% at
$p_T$~=~1.5 GeV/$c$. Beyond this $p_T$ the slope decreases indicating a
possible saturation at high $p_T$. Two-pion azimuthal anisotropies ($p_T>$~1.2
GeV/$c$) exceed $v_2$ by about 60% in semicentral collisions and reveal
non-harmonic contributions at close ($\Delta\phi\approx0$) and back-to-back
($\Delta\phi\approx\pi$) angles that can be attributed to semihard processes.
While the close-angle peak remains unchanged, the back-to-back peak is
broadened and disappears in central collisions.


title:
$\phi$ meson production in d + Au collisions at $\sqrt{s_{NN}}$ = 200
  GeV

abstract:
  We present the preliminary results on $\phi$ meson production in the $\phi
\to K^{+}K^{-}$ and $\phi \to e^{+}e^{-}$ decay channels measured at
mid-rapidity in $\sqrt{s}$ = 200 GeV d + Au collisions at RHIC by the PHENIX
experiment. The transverse mass spectra were obtained in both channels. The
extracted $\phi$ yields are found to be consistent with each other. The results
are compared to the measurements in Au + Au collisions at the same center of
mass energy.


title:
Multifragmentation Studies in 84Kr Interactions with Nuclear Emulsion at
  around 1 A GeV

abstract:
  Projectile fragmentation of 84Kr in three different energy intervals has been
studied. Many aspects of multifragmentation process have been examined in
depth. It is observed that multifragmentation is a general low energy
phenomenon associated with heavy beam. The number of
Intermediate-Mass-Fragments (IMF's) shows strong projetile mass dependence.


title:
System size dependence of strange particle yields and spectra at
  sqrt(s)=17.3 GeV

abstract:
  Yields and spectra of strange hadrons (K+, K-, phi, Lambda and Antilambda) as
well as of charged pions were measured in near central C+C and Si+Si collisions
at 158 AGeV beam energy with the NA49 detector. Together with earlier data for
p+p, S+S and Pb+Pb reactions the system size dependence can be studied.
Relative strangeness production rises fast and saturates at about 60
participating nucleons; the net hyperon spectra show an increasing shift
towards midrapidity for larger colliding nuclei. An interpretation based on the
formation of coherent systems of increasing volume is proposed. The transverse
mass spectra can be described by a blast wave ansatz. Increasing flow velocity
is accompanied by decreasing temperatures for both kinetic and chemical freeze
out. The increasing gap between inelastic and elastic decoupling leaves space
for rescattering.


title:
Estimation of Impact Parameter on event-by-event basis in Nuclear
  Emulsion Detector

abstract:
  Photographic Nuclear Emulsion Detector (PNED) has been in use in nuclear and
particle physics experiments from the begining, often as the major detector
system. However, direct measurement of impact parameter in this detector does
not seem possible due to some limitations. This paper discribe a simple yet
strong method to estimate the impact parameter of events on event-by-event
basis. Though this method is develpoed specifically for the photographic
nuclear emulsion detector, we envision that it should also be applicable to
other multi-target detector systems.


title:
A Ghoshal-like Test of Equilibration in Near-Fermi-Energy Heavy Ion
  Collisions

abstract:
  Calorimetric and coalescence techniques have been employed to probe
equilibration for hot nuclei produced in heavy ion collisions of 35 to 55 MeV/u
projectiles with medium mass targets. Entrance channel mass asymmetries and
energies were selected in order that very hot composite nuclei of similar mass
and excitation would remain after early stage pre-equilibrium particle
emission. Inter-comparison of the properties and de-excitation patterns for
these different systems provides evidence for the production of hot nuclei with
decay patterns relatively independent of the specific entrance channel.


title:
Measurement of the analyzing power of proton-carbon elastic scattering
  in the CNI region at RHIC

abstract:
  The single transverse spin asymmetry, A_N, of the p-carbon elastic scattering
process in the Coulomb Nuclear Interference (CNI) region was measured using an
ultra thin carbon target and polarized proton beam in the Relativistic Heavy
Ion Collider (RHIC) at Brookhaven National Laboratory (BNL). In 2004, data were
collected to calibrate the p-carbon process at two RHIC energies (24 GeV, 100
GeV). A_N was obtained as a function of momentum transfer -t. The results were
fit with theoretical models which allow us to assess the contribution from a
hadronic spin flip amplitude.


title: The SAMPLE Experiment and Weak Nucleon Structure

abstract:
  One of the key elements to understanding the structure of the nucleon is the
role of its quark-antiquark sea in its ground state properties such as charge,
mass, magnetism and spin. In the last decade, parity-violating electron
scattering has emerged as an important tool in this area, because of its
ability to isolate the contribution of strange quark-antiquark pairs to the
nucleon's charge and magnetism. The SAMPLE experiment at the MIT-Bates
Laboratory, which has been focused on s-sbar contributions to the proton's
magnetic moment, was the first of such experiments and its program has recently
been completed. In this paper we give an overview of some of the experimental
aspects of parity-violating electron scattering, briefly review the theoretical
predictions for strange quark form factors, summarize the SAMPLE measurements,
and place them in context with the program of experiments being carried out at
other electron scattering facilities such as Jefferson Laboratory and the Mainz
Microtron.


title: Method of Monte Carlo grid for data analysis

abstract:
  This paper presents an analysis procedure for experimental data using
theoretical functions generated by Monte Carlo. Applying the classical
chi-square fitting procedure for some multiparameter systems is extremely
difficult due to a lack of an analytical expression for the theoretical
functions describing the system. The proposed algorithm is based on the least
square method using a grid of Monte Carlo generated functions each
corresponding to definite values of the minimization parameters. It is used for
the E742 experiment (TRIUMF, Vancouver, Canada) data analysis with the aim to
extract muonic atom scattering parameters on solid hydrogen.


title:
Evidence of a Pionic Enhancement Observed in $^{16}O(p,p')
  ^{16}O(0^-,T=1)$ at 295 MeV

abstract:
  The cross section of the ${}^{16}{\rm O}(p,p'){}^{16}{\rm O}(0^-,T=1)$
scattering was measured at a bombarding energy of 295 MeV in the momentum
transfer range of $1.0 \mathrm{fm^{-1}}$ $\le$ $q_{\rm c.m.}$ $\le$ $2.1
\mathrm{fm^{-1}}$.
  The isovector $0^-$ state at $E_x$ = 12.8 MeV is clearly separated from its
neighboring states owing to the high energy resolution of about 30 keV.
  The cross section data were compared with distorted wave impulse
approximation (DWIA) calculations employing shell-model wave functions.
  The observed cross sections around $q_{\rm c.m.}$ $\simeq$ $1.7 {\rm
fm^{-1}}$ are significantly larger than predicted by these calculations,
suggesting pionic enhancement as a precursor of pion condensation in nuclei.
  The data are successfully reproduced by DWIA calculations using random phase
approximation response functions including the $\Delta$ isobar that predict
pionic enhancement.


title: Recent Results and Status of TEXONO Experiments

abstract:
  This article reviews the research program and efforts for the TEXONO
Collaboration on neutrino and astro-particle physics. The ``flagship'' program
is on reactor-based neutrino physics at the Kuo-Sheng (KS) Power Plant in
Taiwan. A limit on the neutrino magnetic moment of munuebar < 1.3 times
10^{-10} mub at 90% confidence level was derived from measurements with a high
purity germanium detector. Other physics topics at KS, as well as the various
R&D program, are discussed.


title:
A working with a Silicon Position Sensitive Detector (dE%E calibration
  and isotopes separation)

abstract:
  A method for the calibration of a Silicon Position Sensitive Detector is
described. From the combination of the signals collected at the ends of the
resistive electrode, energy and angle of the hitting particle are reconstructed
with a procedure which straightforwardly accounts for different amplifier chain
gains and dc offset effects.


title:
Hard scattering and jets--from p-p collisions in the 1970's to Au+Au
  collisions at RHIC

abstract:
  Hard scattering in p-p collisions, discovered at the CERN ISR in 1972 by the
method of leading particles, proved that the partons of Deeply Inelastic
Scattering strongly interacted with each other. Further ISR measurements
utilizing inclusive single or pairs of hadrons established that high pT
particles 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 these
measurements. These techniques, which are the only practical method to study
hard-scattering and jet phenomena in Au+Au central collisions, are reviewed,
with application to measurements at RHIC.


title: Non-statistical fluctuations for deep inelastic processes in 27Al + 27Al

abstract:
  The excitation functions for different fragments produced in the 27Al + 27Al
dissipative collisions have been measured in steps of 250 keV in the energy
range 122 - 132 MeV. Deep inelastic processes have been selected by integrating
events over a total kinetic energy loss window of 12 MeV between 20 and 32 MeV.
Large fluctuations have been observed in all the studied excitation functions.
Non-satistical origin of these fluctuations is confirmed by large channel cross
correlations coefficients. Energy autocorrelation function of cross section
excitation function presents damped oscillation structure as predicted for the
case when a di-nuclear system with a lifetime similar with its revolution
period is formed. The periodicity of the energy autocorrelation function is
used to obtain information on the deformation of the 27Al + 27 Al di-nucleus.


title: Inelastic Diffraction at Heavy Ion Colliders

abstract:
  The heavy ion physics approach to global event characterization has led us to
instrument the forward region in the PHENIX experiment at RHIC. In heavy ion
collisions this coverage yields a measurement of the "spectator" energy and its
distribution about the beam direction. This energy flow is the basis of
event-by-event determination of the centrality and reaction plane which are key
to analyzing particle production in heavy ion collisions. These same tools have
also enabled a unique set of measurements on inelastic diffraction with proton,
deuteron and gold ion beams in the PHENIX experiment. We present first new
results on this topic and discuss briefly the opportunity for diffractive
physics with Heavy Ion beams at the LHC.


title: Strangeness and heavy flavor at RHIC: Recent results from PHENIX

abstract:
  We report recent results of strangeness and heavy flavor measurements from
PHENIX.
  The topics are: Elliptic flow of strangeness and heavy flavor electron
production comparing to the other hadrons, $\phi$ meson production, and an
exotic particle search.


title:
Parity assignments in 172,174Yb using polarized photons and the K
  quantum number in rare earth nuclei

abstract:
  The 100 % polarized photon beam at the High Intensity gamma-ray Source (HIgS)
at Duke University has been used to determine the parity of six dipole
excitations between 2.9 and 3.6 MeV in the deformed nuclei 172,174 Yb in photon
scattering (g,g') experiments. The measured parities are compared with previous
assignments based on the K quantum number that had been assigned in Nuclear
Resonance Fluorescence (NRF) experiments by using the Alaga rules. A systematic
survey of the relation between gamma-decay branching ratios and parity quantum
numbers is given for the rare earth nuclei.


title: The search for missing baryon resonances

abstract:
  Experiments with electromagnetic probes are promising to search for baryon
resonances that have been predicted by quark models but have not yet been
observed. Data sets from different experiments show interesting resonance
structures possibly due to so far unknow states. This might indicate that at
least some of the missing baryon resonances start to show up.


title:
Liquid-gas phase transition in hot nuclei: correlation between dynamical
  and thermodynamical signals

abstract:
  The dynamics and thermodynamics of phase transition in hot nuclei are studied
through experimental results on multifragmentation of heavy systems (A$geq$200)
formed in central heavy ion collisions. Different signals indicative of a phase
transition studied in the INDRA collaboration are presented and their
consistency is stressed.


title:
Experimental and Theoretical Challenges in the Search for the Quark
  Gluon Plasma: The STAR Collaboration's Critical Assessment of the Evidence
  from RHIC Collisions

abstract:
  We review the most important experimental results from the first three years
of nucleus-nucleus collision studies at RHIC, with emphasis on results from the
STAR experiment, and we assess their interpretation and comparison to theory.
The theory-experiment comparison suggests that central Au+Au collisions at RHIC
produce dense, rapidly thermalizing matter characterized by: (1) initial energy
densities above the critical values predicted by lattice QCD for establishment
of a Quark-Gluon Plasma (QGP); (2) nearly ideal fluid flow, marked by
constituent interactions of very short mean free path, established most
probably at a stage preceding hadron formation; and (3) opacity to jets. Many
of the observations are consistent with models incorporating QGP formation in
the early collision stages, and have not found ready explanation in a hadronic
framework. However, the measurements themselves do not yet establish
unequivocal evidence for a transition to this new form of matter. The
theoretical treatment of the collision evolution, despite impressive successes,
invokes a suite of distinct models, degrees of freedom and assumptions of as
yet unknown quantitative consequence. We pose a set of important open
questions, and suggest additional measurements, at least some of which should
be addressed in order to establish a compelling basis to conclude definitively
that thermalized, deconfined quark-gluon matter has been produced at RHIC.


title: Rho meson production in ultraperipheral dAu collision

abstract:
  Ultra-peripheral heavy ion collisions involve long range electromagnetic
interactions at impact parameters larger than twice the nuclear radius, where
no nucleon-nucleon collisions occur. We report on the first observation of rho
meson production in dAu->d Au rho^0 and dAu-> n p Au rho^0.


title: Experimental Review of Baryons in the Nuclear Medium

abstract:
  Inclusive studies of nuclear photoabsorption have provided clear evidence of
medium modifications but the results have not yet been explained in a model
independent way. A deeper understanding of the situation is anticipated from a
detailed experimental study of meson photoproduction from nuclei in exclusive
reactions. Recent results on meson production in photonuclear experiments
indicate a large difference between quasifree meson production from the nuclear
surface and non-quasifree components.


title:
Spin observables in deuteron-proton radiative capture at intermediate
  energies

abstract:
  A radiative deuteron-proton capture experiment was carried out at KVI using
polarized-deuteron beams at incident energies of 55, 66.5, and 90 MeV/nucleon.
Vector and tensor-analyzing powers were obtained for a large angular range. The
results are interpreted with the help of Faddeev calculations, which are based
on modern two- and three-nucleon potentials. Our data are described well by the
calculations, and disagree significantly with the observed tensor anomaly at
RCNP.


title: A search for deeply bound kaonic nuclear states

abstract:
  We have measured proton and neutron energy spectra by stopping negative kaons
on liquid helium4. Two distinct peak structures were found on both spectra,
which were assigned to the formation of new kinds of strange stribaryons. In
this paper, we summarize both results.


title: Light-ion production in the interaction of 96 MeV neutrons with oxygen

abstract:
  Double-differential cross sections for light-ion (p, d, t, He-3 and alpha)
production in oxygen, induced by 96 MeV neutrons are reported. Energy spectra
are measured at eight laboratory angles from 20 degrees to 160 degrees in steps
of 20 degrees. Procedures for data taking and data reduction are presented.
Deduced energy-differential and production cross sections are reported.
Experimental cross sections are compared to theoretical reaction model
calculations and experimental data at lower neutron energies in the literature.
The measured proton data agree reasonably well with the results of the model
calculations, whereas the agreement for the other particles is less convincing.
The measured production cross sections for protons, deuterons, tritons and
alpha particles support the trends suggested by data at lower energies.


title:
Measurement of the Q^2-evolution of the Bjorken integral and extraction
  of an effective strong coupling constant at low Q^2

abstract:
  We report on the measurement of the Bjorken sum in the range 0.16<Q^2<1.1
GeV^2. The extraction of an effective strong coupling constant is then
discussed.


title:
Distributions of Charged Hadrons Associated with High Transverse
  Momentum Particles in pp and Au+Au Collisions at sqrt(s_NN)=200 GeV

abstract:
  Charged hadrons in 0.15 < pt < 4 GeV/c associated with particles of pt^trig >
4 GeV/c are reconstructed in pp and Au+Au collisions at sqrt(s_NN)=200 GeV. The
associated multiplicity and pt magnitude sum are found to increase from pp to
central Au+Au collisions. The associated pt distributions, while similar in
shape on the near side, are significantly softened on the away side in central
Au+Au relative to pp and not much harder than that of inclusive hadrons. The
results, consistent with jet quenching, suggest that the away-side fragments
approach equilibration with the medium traversed.


title: Jet physics in ALICE

abstract:
  This work aims at the performance of the ALICE detector for the measurement
of high-energy jets at mid-pseudo-rapidity in ultra-relativistic
nucleus--nucleus collisions at LHC and their potential for the characterization
of the partonic matter created in these collisions. In our approach, jets at
high energy with E_{T}>50 GeV are reconstructed with a cone jet finder, as
typically done for jet measurements in hadronic collisions. Within the ALICE
framework we study its capabilities of measuring high-energy jets and quantify
obtainable rates and the quality of reconstruction, both, in proton--proton and
in lead--lead collisions at LHC conditions. In particular, we address whether
modification of the jet fragmentation in the charged-particle sector can be
detected within the high particle-multiplicity environment of the central
lead--lead collisions. We comparatively treat these topics in view of an EMCAL
proposed to complete the central ALICE tracking detectors. The main activities
concerning the thesis are the following: a) Determination of the potential for
exclusive jet measurements in ALICE. b) Determination of jet rates that can be
acquired with the ALICE setup. c) Development of a parton-energy loss model. d)
Simulation and study of the energy-loss effect on jet properties.


title:
Proton elastic form factor ratios to $Q^2$ = 3.5 GeV$^2$ by polarization
  transfer

abstract:
  The ratio of the proton elastic electromagnetic form factors,
$G_{Ep}/G_{Mp}$, was obtained by measuring $P_{t}$ and $P_{\ell}$, the
transverse and longitudinal recoil proton polarization components,
respectively, for the elastic $\vec e p \to e\vec p$ ~reaction in the
four-momentum transfer squared range of 0.5 to 3.5 GeV$^2$. In the
single-photon exchange approximation, the ratio $G_{Ep}/G_{Mp}$ is directly
proportional to the ratio $P_t/P_{\ell}$. The simultaneous measurement of
$P_{t}$ and $P_{\ell}$ in a polarimeter reduces systematic uncertainties. The
results for the ratio $G_{Ep}/G_{Mp}$ show a systematic decrease with
increasing $Q^2$, indicating for the first time a definite difference in the
distribution of charge and magnetization in the proton. The data have been
re-analyzed and systematic uncertainties have become significantly smaller than
previously published results.


title: The Axial Form Factor of the Nucleon

abstract:
  The parity violation programs at MIT-Bates, Jefferson Lab and Mainz are
presently focused on developing a better understanding of the sea-quark
contributions to the vector matrix elements of nucleon structure. The success
of these programs will allow precise semi-leptonic tests of the Standard Model
such as that planned by the QWeak collaboration. In order to determine the
vector matrix elements, a good understanding of the nucleon's axial vector form
factor as seen by an electron, G^e_A, is also required. While the vector
electroweak form factors provide information about the nucleon's charge and
magnetism, the axial form factor is related to the nucleon's spin. Its Q2=0
value at leading order, g_A, is well known from nucleon and nuclear beta decay,
and its precise determination is of interest for tests of CKM unitarity. Most
information about its Q2 dependence comes from quasielastic neutrino scattering
and from pion electroproduction, and a recent reanalysis of the neutrino data
have brought these two types of measurements into excellent agreement. However,
these experiments are not sensitive to additional higher order corrections,
such as nucleon anapole contributions, that are present in parity-violating
electron scattering. In this talk I will attempt to review what is presently
known about the axial form factor and its various pieces including the higher
order contributions, discuss the the various experimental sectors, and give an
update on its determination through PV electron scattering.


title: Results and Prospects of Few-Body System Structure Studies

abstract:
  This paper presents a selected review of the (e,e'p) experimental program
recently completed at the Jefferson Laboratory in the domain of high momentum
transfer and high recoil momentum. Particular emphasis is put on the current
understanding of the reaction mechanisms and of the large final state
interaction effects. Their consequences on the study of the nuclear wave
function and nucleon-nucleon correlations are addressed. The short and long
term future of the (e,e'p) experimental program is also discussed in the
perspective of the study of the quark and gluon structure of nucleons and
nuclei.


title:
Charged pion production in $^{96}_{44}$Ru+$^{96}_{44}$Ru collisions at
  400A and 1528A MeV

abstract:
  We present transverse momentum and rapidity spectra of charged pions in
central Ru + Ru collisions at 400$A$ and 1528$A$ MeV. The data exhibit enhanced
production at low transverse momenta compared to the expectations from the
thermal model that includes the decay of $\Delta(1232)$-resonances and thermal
pions. Modification of the $\Delta$-spectral function and the Coulomb
interaction are necessary to describe the detailed shape of the transverse
momentum spectra. Within the framework of the thermal model, the freeze-out
radii of pions are similar at both beam energies. The IQMD model reproduces the
shapes of the transverse momentum and rapidity spectra of pions, but the
predicted absolute yields are larger than in the measurements, especially at
lower beam energy.


title: Comparison of mid-velocity fragment formation with projectile-like decay

abstract:
  The characteristics of intermediate mass fragments (IMFs: 3<=Z<=20) produced
in mid-peripheral and central collisions are compared. We compare IMFs detected
at mid-velocity with those evaporated from the excited projectile-like fragment
(PLF*). On average, the IMFs produced at mid-velocity are larger in atomic
number, exhibit broader transverse velocity distributions, and are more
neutron-rich as compared to IMFs evaporated from the PLF*. In contrast,
comparison of mid-velocity fragments associated with mid-peripheral and central
collisions reveals that their characteristics are remarkably similar despite
the difference in impact parameter. The characteristics of mid-velocity
fragments are consistent with low-density formation of the fragments. Neutron
deficient isotopes of even Z elements manifest higher kinetic energies than
heavier isotopes of the same element for both PLF* and mid-velocity emission.
This result may be due to the decay of long-lived excited states in the field
of the emitting system.


title: Drift chamber with a c-shaped frame

abstract:
  We present the construction of a planar drift chamber with wires stretched
between two arms of a c-shaped aluminium frame. The special shape of the frame
allows to extendthe momentum acceptance of the COSY-11 detection system towards
lower momenta without suppressing the high momentum particles. The proposed
design allows for construction of tracking detectors covering small angles with
respect to the beam, which can be installed and removed without dismounting the
beam-pipe. For a three-dimensional track reconstruction a computer code was
developed using a simple algorithm of hit preselection.


title: Physics at ELSA, achievements and future

abstract:
  At ELSA interesting results on baryon resonances have been obtained by the
CB-ELSA, the CBELSA/TAPS and the SAPHIR collaborations. New resonances were
found, in particular a new $\rm D_{15}(2070)$ decaying into $p\eta$, was
recently observed by the CB-ELSA experiment. The availability of a polarized
beam and a polarized target did allow to measure the GDH sum rule up to 2.9
GeV. In the future double polarization experiments will be performed using the
Crystal Barrel detector together with new forward detector components. These
polarization observables will provide important additional information for the
partial wave analyses performed to extract the contributing resonances and
their parameters from the data.


title:
Decomposition of Harmonic and Jet Contributions to Particle-pair
  Correlations at Ultra-relativistic Energies

abstract:
  Methodology is presented for analysis of two-particle azimuthal angle
correlation functions obtained in collisions at ultra-relativistic energies. We
show that harmonic and di-jet contributions to these correlation functions can
be reliably decomposed by two techniques to give an accurate measurement of the
jet-pair distribution. Results from detailed Monte Carlo simulations are used
to demonstrate the efficacy of these techniques in the study of possible
modifications to jet topologies in heavy ion reactions.


title: Forward Pion Production in Hadron Collisions at STAR

abstract:
  Measurements are reported of the production of high energy pi^0 mesons at
large pseudorapidity, coincident with charged hadrons at mid-rapidity, for
proton+proton and deuteron+gold collisions at sqrt{s_{NN}}=200 GeV. The p+p
cross section for inclusive pi^0 production follows expectations from
next-to-leading order perturbative QCD. A suppression of the back-to-back
azimuthal correlations was observed in d+Au, qualitatively consistent with the
gluon saturation picture. Experimental uncertainties regarding the inclusive
measurement are discussed.


title:
a0+(980)-resonance production in the reaction pp -> dpi+eta close to the
  K(bar(K)) threshold

abstract:
  The reaction pp -> dpi+eta has been measured at a beam energy of T=2.65 GeV
(p=3.46 GeV/c) using the ANKE spectrometer at COSY-Juelich. The missing mass
distribution of the detected dpi+ pairs exhibits a peak around the eta mass on
top of a strong background of multi-pion pp -> dpi+(n(pi)) events. The
differential cross section d^4(sigma)/d(Omega_d)d(Omega_pi+)d(p_d)d(p_pi+) for
the reaction pp -> dpi+eta has been determined model independently for two
regions of phase space. Employing a dynamical model for the a0+ production
allows one then to deduce a total cross section of sigma(pp -> da0+ ->
dpi+eta)=(1.1 +/- 0.3_(stat) +/- 0.7_(syst)) microbarn for the production of
pi+eta via the scalar a0+(980) resonance and sigma(pp -> dpi+eta) = (3.5 +/-
0.3_(stat) +/- 1.0_(syst)) microbarn for the non-resonant production. Using the
same model as for the interpretation of recent results from ANKE for the
reaction pp -> dK+(bar(K0)), the ratio of the total cross sections is sigma(pp
-> d(K+(bar(K0)))_(L=0))/sigma(pp -> da0+ -> dpi+eta) = 0.029 +/- 0.008_(stat)
+/- 0.009_(syst), which is in agreement with branching ratios in the
literature.


title:
First results from NA60 on low mass muon pair production in In-In
  collisions at 158 GeV/nucleon

abstract:
  The NA60 experiment at the CERN SPS studies dimuon production in
proton-nucleus and nucleus-nucleus collisions. The combined information from a
novel vertex telescope made of radiation-tolerant silicon pixel detectors and
from the muon spectrometer previously used in NA50 allows for a precise
measurement of the muon vertex and a much improved dimuon mass resolution. We
report on first results from the data taken for Indium-Indium collisions at 158
AGeV/nucleon in 2003, concentrating on a subsample of about 370 000 muon pairs
in the mass range $<1.2$ GeV/$c^{2}$. The light vector mesons $\omega$ and
$\phi$ are completely resolved, with a mass resolution of about 23 MeV/$c^{2}$
at the $\phi$. The transverse momentum spectra of the $\phi$ are measured over
the continuous range $0<p_{\rm T}<2.5$ GeV/c; the inverse slope parameter of
the spectra is found to increase with centrality, with an average value of
$T=252\pm3$ MeV.


title: Fundamental Symmetries and Interactions - Some Aspects

abstract:
  In the framework of nuclear physics and at nuclear physics facilities a large
number of different experiments can be performed which render the possibility
to investigate fundamental symmetries and interactions in nature. In
particular, the precise measurements of properties of fundamental fermions,
searches for new interactions in $\beta$-decays, and violations of discrete
symmetries have a robust discovery potential for physics beyond standard
theory. Precise measurements of fundamental constants can be carried out as
well. Low energy experiments allow probing of New Physics models at mass scales
far beyond the reach of present accelerators or such planned for the future in
the domain of high energy physics and at which predicted new particles could be
produced directly.


title:
Radioactive beam facilities in Europe: current status and future
  development

abstract:
  The production and acceleration of Radioactive Ion Beams (RIBs) is today an
area of intense interest. The history and development of RIB facilities in
Europe is presented, with discussion of both the in-flight and ISOL methods
used at different laboratories. The current status of present developments like
the SPIRAL II facility at GANIL and the FAIR in-flight facility at GSI are
briefly reviewed. Particular emphasis is given to the recent EURISOL
Feasibility Study for a European ISOL facility, and the present EURISOL Design
Study.


title:
Indication of an excited hyperon state in pp collisions with ANKE at
  COSY-Juelich

abstract:
  The reaction pp->pK+Y has been studied with the ANKE spectrometer at
COSY-Juelich in order to investigate heavy hyperon production. The missing mass
spectra MM(pK+) have been analyzed and compared with Monte Carlo simulations.
Indications for a hyperon resonance Y0*(1480) have been found.


title:
Salient Features of Hadronization, Deconfinement and Heavy Quark Probes
  at RHIC

abstract:
  We present experimental features of identified particle production from
nucleus-nucleus collisions at RHIC. These features reflect hadronization from a
deconfined partonic matter whose particle formation scheme is distinctly
different from fragmentation phenomenology in elementary collisions.
Multi-parton dynamics, such as quark coalescences or recombinations, appear to
be essential to explain the experimental measurements at the intermediate
transverse momentum of 2-5 GeV/c. Constituent quarks seem to be the dominant
degrees of freedom at hadronization and gluon degrees of freedom are not
explicitly manifested in the hadronization scheme. This physical scenario is
consistent with recent Lattice QCD calculations that near the critical
temperature hadrons do not melt completely and quasi-particles may provide an
effective degrees of freedom to describe the partonic matter. Heavy quark
production and other future experimental measurements to quantify the QCD
properties of the produced matter at RHIC will be discussed.


title: Resonance Production in Heavy Ion Collisions

abstract:
  The resonance production of $\Delta$, K(892), $\Sigma$(1385), $\Lambda$(1520)
and $\phi$ from elementary p+p and Au+Au collisions at $\sqrt{s_{\rm NN}} = $
200 GeV from the STAR experiment at RHIC is presented. Yields and spectra are
discussed in terms of chemical and thermal freeze-out conditions. Thermal
models do not describe sufficiently the yields of the resonance production in
central Au+Au collisions. The approach which includes pseudo-elastic and
elastic hadronic interactions after chemical freeze-out until thermal
freeze-out suggests a time span of $\Delta \tau>$5 fm/c.


title: Is there more than one thermal source?

abstract:
  BRAHMS has the ability to study relativistic heavy ion collisions over a wide
range of pT and rapidity. This allows us to test whether thermal models can be
generalized to describe the rapidity dependence of particle ratios. This
appears to work with the baryo-chemical potential changing more rapidly than
the temperature. Using fits to BRAHMS data for the 5% most central Au+Au
collisions we are able to describe Xi and Omega ratios from other experiments.
This paper is dedicated to Julia Thompson who worked to bring South African
teachers into physics.


title:
Effect of the break-up on the fusion and elastic scattering of weakly
  bound projectiles on $^{64}$Zn

abstract:
  We study the behavior of the fusion, break-up, reaction and elastic
scattering of different projectiles on $^{64}$Zn, at near and above barrier
energies. We present fusion and elastic scattering data with the tightly bound
$^{16}$O and the stable weakly bound $^{6}$Li, $^{7}$Li and $^{9}$Be
projectiles. The data were analyzed by coupled channel calculations. The total
fusion cross sections for these systems are not affected by the break-up
process at energies above the barrier. The elastic (non-capture) break-up cross
section is important at energies close and above the Coulomb barrier and
increases the reaction cross sections. In addition we also show that the
break-up process at near and sub-barrier energies is responsible for the
vanishing of the usual threshold anomaly of the optical potential and give rise
to a new type of anomaly.


title: The Nucleon Elastic Form Factors

abstract:
  The nucleon elastic form factors are of fundamental interest, provide a
unique testing ground for QCD motivated models of nucleon structure and are of
critical importance to our understanding of the electromagnetic properties of
nuclei. Even after an experimental effort spanning nearly 50 years the nucleon
form factors are still the subject of active investigation. Advances in
polarized beams, polarized targets and recoil polarimetry have been exploited
over the last decade to produce an important and precise set of data. I review
the status of the experimental efforts to measure the nucleon elastic form
factors.


title: Structure of collective modes in transitional and deformed nuclei

abstract:
  The collective structure of atomic nuclei intermediate between spherical and
quadrupole deformed structure presents challenges to theoretical understanding.
However, models have recently been proposed in terms of potentials which are
soft with respect to the quadrupole deformation variable beta. To test these
models, information is needed on low-spin states of transitional nuclei. The
present work involves measurement of electromagnetic decay properties of
low-spin states for nuclei in the A=100 (gamma-soft) and N=90 (axially
symmetric) transition regions. Population in beta-decay and thermal neutron
capture are used, and measurements are carried out using gamma-ray coincidence
spectroscopy, fast electronic scintillation timing, and gamma-ray induced
Doppler broadening techniques, in experiments at Yale, TRIUMF ISAC, and the
ILL. To facilitate interpretation of these nuclei, a new approach is developed
that simplifies the application of the geometric collective model by use of
scaling properties. Solutions are also obtained for the E(5) Hamiltonian for
finite well depth.


title: Physics of Ultra-Peripheral Nuclear Collisions

abstract:
  Moving highly-charged ions carry strong electromagnetic fields that act as a
field of photons. In collisions at large impact parameters, hadronic
interactions are not possible, and the ions interact through photon-ion and
photon-photon collisions known as {\it ultra-peripheral collisions} (UPC).
Hadron colliders like the Relativistic Heavy Ion Collider (RHIC), the Tevatron
and the Large Hadron Collider (LHC) produce photonuclear and two-photon
interactions at luminosities and energies beyond that accessible elsewhere; the
LHC will reach a $\gamma p$ energy ten times that of the Hadron-Electron Ring
Accelerator (HERA). Reactions as diverse as the production of anti-hydrogen,
photoproduction of the $\rho^0$, transmutation of lead into bismuth and
excitation of collective nuclear resonances have already been studied. At the
LHC, UPCs can study many types of `new physics.'


title:
Performance of the neutron polarimeter NPOL3 for high resolution
  measurements

abstract:
  We describe the neutron polarimeter NPOL3 for the measurement of polarization
transfer observables $D_{ij}$ with a typical high resolution of $\sim$300 keV
at $T_n$ $\simeq$ 200 MeV.
  The NPOL3 system consists of three planes of neutron detectors.
  The first two planes for neutron polarization analysis are made of 20 sets of
one-dimensional position-sensitive plastic scintillation counters with a size
of 100 cm $\times$ 10 cm $\times$ 5 cm, and they cover the area of 100 $\times$
100 $\mathrm{cm}^2$.
  The last plane for detecting doubly scattered neutrons or recoiled protons is
made of the two-dimensional position-sensitive liquid scintillation counter
with a size of 100 cm $\times$ 100 cm $\times$ 10 cm.
  The effective analyzing powers $A_{y;\mathrm{eff}}$ and double scattering
efficiencies $\epsilon_{\mathrm{D.S.}}$ were measured by using the three kinds
of polarized neutrons from the ${}^{2}{\rm H}(\vec{p},\vec{n})pp$, ${}^{6}{\rm
Li}(\vec{p},\vec{n}){}^{6}{\rm Be}(\mathrm{g.s.})$, and ${}^{12}{\rm
C}(\vec{p},\vec{n}){}^{12}{\rm N}(\mathrm{g.s.})$ reactions at $T_p$ = 198 MeV.
  The performance of NPOL3 defined as
$\epsilon_{\mathrm{D.S.}}(A_{y;\mathrm{eff}})^2$ are similar to that of the
Indiana Neutron POLarimeter (INPOL) by taking into account for the counter
configuration difference between these two neutron polarimeters.


title:
Feasibility of low energy radiative capture experiments at the LUNA
  underground accelerator facility

abstract:
  The LUNA (Laboratory Underground for Nuclear Astrophysics) facility has been
designed to study nuclear reactions of astrophysical interest. It is located
deep underground in the Gran Sasso National Laboratory, Italy. Two
electrostatic accelerators, with 50 and 400 kV maximum voltage, in combination
with solid and gas target setups allowed to measure the total cross sections of
the radiative capture reactions $^2$H(p,$\gamma$)3He and
$^{14}$N(p,$\gamma$)$^{15}$O within their relevant Gamow peaks. We report on
the gamma background in the Gran Sasso laboratory measured by germanium and
bismuth germanate detectors, with and without an incident proton beam. A method
to localize the sources of beam induced background using the Doppler shift of
emitted gamma rays is presented. The feasibility of radiative capture studies
at energies of astrophysical interest is discussed for several experimental
scenarios.


title:
Multiplicity and Pseudorapidity Distributions of Photons in Au + Au
  Collisions at $\sqrt{s_{NN}}$ = 62.4 GeV

abstract:
  We present the first measurement of multiplicity and pseudorapidity
distributions of photons in the pseudorapidity region 2.3 $\le$ $\eta$ $\le$
3.7 for different centralities in Au + Au collisions at $\sqrt{s_{NN}}$ = 62.4
GeV. We find that the photon yield in this pseudorapidity range scales with the
number of participating nucleons at all collision centralities studied. The
pseudorapidity distribution of photons, dominated by neutral pion decays, has
been compared to those of identified charged pions, photons, and inclusive
charged particles from heavy ion and nucleon-nucleon collisions at various
energies. The photon production in the measured pseudorapidity region has been
shown to be consistent with the energy and centrality independent limiting
fragmentation scenario.


title:
Measurement of Single Electron Event Anisotropy in Au+Au Collisions at
  sqrt(s_NN) = 200 GeV

abstract:
  The transverse momentum dependence of the azimuthal anisotropy parameter v_2,
the second harmonic of the azimuthal distribution, for electrons at
mid-rapidity (|eta| < 0.35) has been measured with the PHENIX detector in Au+Au
collisions at sqrt(s_NN) = 200 GeV. The measurement was made with respect to
the reaction plane defined at high rapidities (|eta| = 3.1 -- 3.9). From the
result we have measured the v_2 of electrons from heavy flavor decay after
subtraction of the v_2 of electrons from other sources such as photon
conversions and Dalitz decay from light neutral mesons. We observe a non-zero
single electron v_2 with a 90% confidence level in the intermediate p_T region.


title: Measurement of the Xi-p Scattering Cross Sections at Low Energy

abstract:
  In this paper we report cross-section measurements for $\Xi^-p$ elastic and
inelastic scatterings at low energy using a scintillating fiber active target.
Upper limit on the total cross-section for the elastic scattering was found to
be 24 mb at 90% confidence level, and the total cross section for the
$\Xi^-p\to\Lambda\Lambda$ reaction was found to be $4.3^{+6.3}_{-2.7}$ mb. We
compare the results with currently competing theoretical estimates.


title:
Direct determination of photodisintegration cross sections and the
  p-process

abstract:
  Photon-induced reactions play a key role in the nucleosynthesis of heavy
neutron-deficient nuclei, the so-called p-nuclei. In this paper we review the
present status of experiments on photon-induced reactions at energies of
astrophysical importance and their relevance to p-process modeling.


title: Fundamental Symmetries and Interactions

abstract:
  In Nuclear Physics numerous possibilities exist to investigate fundamental
symmetries and interactions. In particular, the precise measurements of
properties of fundamental fermions, searches for new interactions in
$\beta$-decays, and violations of discrete symmeties offer possibilities to
search for physics beyond Standard Theory. Precise measurements of fundamental
constants can be carried out. Low energy experiments allow to probe New Physics
at mass scales far beyond the reach of present accelerators or such planned for
the future and at which predicted new particles could be produced directly.


title:
Microscopic effects in fragment mass distribution in fusion-fission
  reactions of light projectiles with heavy targets

abstract:
  Microscopic effects in fragment mass distributions in fusion-fission
reactions of light projectiles (C, O and F) on deformed thorium and spherical
bismuth targets in near and below Coulomb barrier energies are investigated.
Precisely measured mass distribution shows a sudden anomalous increase in
variances of mass distributions ($\sigma_{m}^2$) near Coulomb barrier energies
for all three projectiles with deformed thorium target, in contrast to a smooth
variation of $\sigma_{m}^2$ with energy for spherical bismuth target.
Macroscopic effects of change in mass flow or prolonged mass equilibration time
can not explain the observed variation in $\sigma_{m}^2$ with energy.
Microscopic effects due to change in entrance channel shape compactness for
projectiles hitting the polar region of prolate thorium target is postulated to
reach a almost symmetric saddle without complete fusion for events of anomalous
fragment widths. Quantitative estimates of mass widths mixed for the two
processes explains the observed variation of $\sigma_{m}^2$ with excitation
energy.


title: Don't Forget to Measure $\Delta s$

abstract:
  This talk explores our lack of knowledge of the strange quark contribution to
the nucleon spin, $\Delta s$. Data on $\Delta s$ from inclusive and
semi-inclusive polarized deep-inelastic scattering will be reviewed, followed
by a discussion of how the ongoing program of parity-violating elastic
electron-nucleon scattering experiments, that seek out the strange
electromagnetic form factors of the nucleon, need to have an estimate for the
strange axial form factor to carry out that program, and how the value of
$\Delta s$ extracted from the DIS experiments has filled that role. It is shown
that elastic $\nu p$, $\bar{\nu} p$, and parity-violating $\vec{e}p$ data can
be combined to extract the strange electric, magnetic $and$ axial form factors
simultaneously. A proposed experiment that could address this important issue
if briefly previewed.


title:
Identified particle correlation studies in central Au + Au collisions at
  sqrt(S)= 200 GeV

abstract:
  We present correlations between strange baryons and mesons with charged
hadrons in AuAu and pp collisions at sqrt(s)=200 GeV for different pT ranges
and centralities. We observe that for central AuAu collisions, the large width
of the back side correlations indicates a collapse of the jet structure. This
is consistent with previous measurement of suppression of the back side
correlation for unidentified charged hadrons. However, in the medium pT range
the same side correlations show large AA/pp ratios and wek centrality
dependencies which indicate different medium modification of the soft jet
components. For different leading particle species we have found no significant
difference for both same side and back side correlations. These results are
comparable to PHENIX's measurements in similar pT range


title: GANIL Status report

abstract:
  The GANIL-Spiral facility (Caen, France) is dedicated to the acceleration of
heavy ion beams for nuclear physics, atomic physics, radiobiology and material
irradiation. The production of radioactive ion beams for nuclear physics
studies represents the main part of the activity. The facility possesses a
versatile combination of equipments, which permits to produce accelerated
radioactive ion beams with two complementary methods: Isotope Separation In
Line (ISOL) and In-Flight Separation techniques (IFS). Considering the future
of GANIL, SPIRAL II projects aims to produce high intensity secondary beams, by
fission induced with a 5 mA deuteron beam on an uranium target.


title: Inclusive pion double charge exchange on O-16 above the delta resonance

abstract:
  The forward inclusive pion double charge exchange reaction,
^{16}O(pi^-,pi^+)X, at T_0 = 0.50 and 0.75 GeV has been studied in the
kinematical region where an additional pion production is forbidden by
energy-momentum conservation. The experiment was performed with the SKS
spectrometer at KEK PS. The measured ratio of double charge exchange
cross-section for these energies dsigma(0.50 GeV)/dOmega / dsigma(0.75
GeV)/dOmega = 1.7 +/- 0.2, disagrees with the value of 7.2 predicted within the
conventional sequential single charge exchange mechanism. Possible reasons for
the disagreement are discussed in connection with the Glauber inelastic
rescatterings.


title: Direct-Photon Production from SPS to RHIC Energies

abstract:
  Direct photons are an important tool for the detection of the quark-gluon
plasma in ultra-relativistic nucleus-nucleus collisions. Direct-photon
measurements were made in Pb+Pb collisions at sqrt{s_NN}=17.2 GeV and in Au+Au
collisions at sqrt{s_NN}=200 GeV. These results are reviewed and compared with
model calculations.


title: The Cryogenic Target for the G$^0$ Experiment at Jefferson Lab

abstract:
  A cryogenic horizontal single loop target has been designed, built, tested
and operated for the G$^0$ experiment in Hall C at Jefferson Lab. The target
cell is 20 cm long, the loop volume is 6.5 l and the target operates with the
cryogenic pump fully immersed in the fluid. The target has been designed to
operate at 30 Hz rotational pump speed with either liquid hydrogen or liquid
deuterium. The high power heat exchanger is able to remove 1000 W of heat from
the liquid hydrogen, while the nominal electron beam with current of 40 $\mu$A
and energy of 3 GeV deposits about 320 W of heat into the liquid. The increase
in the systematic uncertainty due to the liquid hydrogen target is negligible
on the scale of a parity violation experiment. The global normalized yield
reduction for 40 $\mu$A beam is about 1.5 % and the target density fluctuations
contribute less than 238 ppm (parts per million) to the total asymmetry width,
typically about 1200 ppm, in a Q$^2$ bin.


title:
Is There a Significant Difference Between the Results of the Coulomb
  Dissociation of 8B and the Direct Capture 7Be(p,g)8B Reaction?

abstract:
  Recent claims of the Seattle group of evidence of "slope difference between
CD [Coulomb Dissociation] and direct [capture] results" are based on wrong and
selective data. When the RIKEN2 data are included correctly, and previously
published Direct Capture (DC) data are also included, we observe only a 1.9
sigma difference in the extracted so called "scale independent slope (b)",
considerably smaller than claimed by the Seattle group. The very
parameterization used by the Seattle group to extract the so called b-slope
parameter has no physical foundation. Considering the physical slope (S' =
dS/dE), we observe a 1.0 sigma agreement between slopes (S') measured in CD and
DC, refuting the need for new theoretical investigation. The claim that S17(0)
values extracted from CD data are approximately 10% lower than DC results, is
based on misunderstanding of the CD method. Considering all of the published CD
S17(0) results, with adding back an unconfirmed E2 correction of the MSU data,
yields very consistent S17(0) results that agree with recent DC measurements of
the Seattle and Weizmann groups. The recent correction of the b-slope parameter
(0.25 1/MeV) suggested by Esbensen, Bertsch and Snover was applied to the wrong
b-slope parameter calculated by the Seattle group. When considering the correct
slope of the RIKEN2 data, this correction in fact leads to a very small b-slope
parameter (0.14 1/MeV), less than half the central value observed for DC data,
refuting the need to correct the RIKEN2 data. In particular it confirms that
the E2 contribution in the RIKEN2 data is negligible. The dispersion of
measured S17(0) is mostly due to disagreement among individual DC experiments
and not due to either experimental or theoretical aspects of CD.


title:
Electron Energy Spectra, Fluxes, and Day-Night Asymmetries of $^{8}$B
  Solar Neutrinos from the 391-Day Salt Phase SNO Data Set

abstract:
  Results are reported from the complete salt phase of the Sudbury Neutrino
Observatory experiment in which NaCl was dissolved in the D$_2$O target. The
addition of salt enhanced the signal from neutron capture, as compared to the
pure D$_2$O detector. By making a statistical separation of charged-current
events from other types based on event-isotropy criteria, the effective
electron recoil energy spectrum has been extracted. In units of $ 10^6$
cm$^{-2}$ s$^{-1}$, the total flux of active-flavor neutrinos from $^8$B decay
in the Sun is found to be
$4.94^{+0.21}_{-0.21}{(stat)}^{+0.38}_{-0.34}{(syst)}$ and the integral flux of
electron neutrinos for an undistorted $^8$B spectrum is
$1.68^{+0.06}_{-0.06}{(stat)}^{+0.08}_{-0.09}{(syst)}$; the signal from
($\nu_x$,e) elastic scattering is equivalent to an electron-neutrino flux of
$2.35^{+0.22}_{-0.22}{(stat)}^{+0.15}_{-0.15}{(syst)}$. These results are
consistent with those expected for neutrino oscillations with the so-called
Large Mixing Angle parameters, and also with an undistorted spectrum. A search
for matter-enhancement effects in the Earth through a possible day-night
asymmetry in the charged-current integral rate is consistent with no asymmetry.
Including results from other experiments, the best-fit values for two-neutrino
mixing parameters are $\Delta m^2 = (8.0^{+0.6}_{-0.4}) \times 10^{-5}$ eV$^2$
and $\theta = 33.9 ^{+2.4}_{-2.2}$ degrees.


title:
Measurement of the analyzing power in pp elastic scattering in the peak
  CNI region at RHIC

abstract:
  We report the first measurements of the A_N absolute value and shape in the
-t range from 0.0015 to 0.010GeV/c^2 with a precision better than 0.005 for
each A_N data point using a polarized atomic hydrogen gas jet target and the
100 GeV RHIC proton beam.


title: Effect of Finite Granularity of Detectors on Anisotropy Coefficients

abstract:
  The coefficients that describe the anisotropy in the azimuthal distribution
of particles are lower when the particles are recorded in a detector with
finite granularity and measures only hits. This arises due to loss of
information because of multiple hits in any channel. The magnitude of this loss
of signal depends both on the occupancy and on the value of the coefficient.
These correction factors are obtained for analysis methods differing in detail,
and are found to be different.


title:
Survival of orbiting in $^{20}$Ne (7 - 10 MeV/nucleon) + $^{12}$C
  reactions

abstract:
  The inclusive energy distributions of fragments with Z $\geq$ 3 emitted from
the bombardment of $^{12}$C by $^{20}$Ne beams with incident energies between
145 and 200 MeV have been measured in the angular range $\theta_{lab} \sim$
10$^\circ$ - 50$^\circ$. Damped fragment yields in all cases have been found to
be characteristic of emission from fully energy equilibrated composites; for B,
C fragments, average Q-values, $<Q>$, were independent of the centre of mass
emission angle ($\theta_{c.m}$), and the angular distributions followed
$\sim$1/sin$\theta_{c.m}$ like variation, signifying long life times of the
emitting di-nuclear systems. Total yields of these fragments have been found to
be much larger compared to the standard statistical model predictions of the
same. This may be indicative of the survival of orbiting like process in
$^{12}$C + $^{20}$Ne system at these energies.


title: Expression of Interest for a Comprehensive New Detector at RHIC II

abstract:
  There are compelling physics questions to be addressed by a new comprehensive
detector at a future, high-luminosity RHIC II collider. These form the basis
for this Expression of Interest. What precisely are the properties of the
strongly-coupled Quark Gluon Plasma (sQGP)? Can a more weakly interacting QGP
state be formed and investigated at RHIC? How do particles acquire mass and
what is the effect of chiral symmetry restoration on hadronization in a dense
medium? What is the chiral structure of the QCD vacuum and its influence on and
contributions of different QCD vacuum states to the masses of particles? Is
there another phase of matter at low Bjorken-x, i.e. the Color Glass Condensate
(CGC)? If present, what are its features and how does it evolve into the QGP?
If not, are parton distribution functions understood at low Bjorken-x and can
they describe particle production? What are the structure and dynamics inside
the proton, including parton spin and orbital angular momentum? What are the
contributions of gluons and the QCD sea to the polarization of the proton? What
is the flavor-dependence? Are there tests for new physics beyond the Standard
Model from spin measurements at RHIC II (such as parity-violating
interactions)? We propose that a new comprehensive detector system is needed
for RHIC II to address these questions adequately and in an effective way.


title:
Centrality Dependence of Direct Photon Production in sqrt(s_NN) = 200
  GeV Au+Au Collisions

abstract:
  The first measurement of direct photons in Au+Au collisions at sqrt(s_NN) =
200 GeV is presented. The direct photon signal is extracted as a function of
the Au+Au collision centrality and compared to NLO pQCD calculations. The
direct photon yield is shown to scale with the number of nucleon-nucleon
collisions for all centralities.


title: Freeze-out volume in multifragmentation - dynamical simulations

abstract:
  Stochastic mean-field simulations for multifragmenting sources at the same
excitation energy per nucleon have been performed. The freeze-out volume, a
concept which needs to be precisely defined in this dynamical approach, was
shown to increase as a function of three parameters: freeze-out instant,
fragment multiplicity and system size.


title:
Size and asymmetry of the reaction entrance channel: influence on the
  probability of neck production

abstract:
  The results of experiments performed to investigate the Ni+Al, Ni+Ni, Ni+Ag
reactions at 30 MeV/nucleon are presented. From the study of dissipative
midperipheral collisions, it has been possible to detect events in which
Intermediate Mass Fragments (IMF) production takes place. The decay of a
quasi-projectile has been identified; its excitation energy leads to a
multifragmentation totally described in terms of a statistical disassembly of a
thermalized system (T$\simeq$4 MeV, E$^*\simeq$4 MeV/nucleon). Moreover, for
the systems Ni+Ni, Ni+Ag, in the same nuclear reaction, a source with velocity
intermediate between that of the quasi-projectile and that of the quasi-target,
emitting IMF, is observed. The fragments produced by this source are more
neutron rich than the average matter of the overall system, and have a charge
distribution different, with respect to those statistically emitted from the
quasi-projectile. The above features can be considered as a signature of the
dynamical origin of the midvelocity emission. The results of this analysis show
that IMF can be produced via different mechanisms simultaneously present within
the same collision. Moreover, once fixed the characteristics of the
quasi-projectile in the three considered reactions (in size, excitation energy
and temperature), one observes that the probability of a partner IMF production
via dynamical mechanism has a threshold (not present in the Ni+Al case) and
increases with the size of the target nucleus.


title:
Trace Detection of Metastable Helium Molecules in Superfluid Helium by
  Laser-Induced Fluorescence

abstract:
  We describe an approach to detecting ionizing radiation that combines the
special properties of superfluid helium with the sensitivity of quantum optics
techniques. Ionization in liquid helium results in the copious production of
metastable helium molecules, which can be detected by laser-induced
fluorescence. Each molecule can be probed many times using a cycling
transition, resulting in the detection of individual molecules with high signal
to noise. This technique could be used to detect neutrinos, weakly interacting
massive particles, and ultracold neutrons, and to image superfluid flow in
liquid He-4.


title:
A study of nuclear stopping in central symmetric nuclear collisions at
  intermediate energies

abstract:
  Nuclear stopping has been investigated in central symmetric nuclear
collisions at intermediate energies. Firstly, it is found that the isotropy
ratio, Riso, reaches a minimum near the Fermi energy and saturates or slowly
increases depending on the mass of the system as the beam energy increases. An
approximate scaling based on the size of the system is found above the Fermi
energy suggesting the increasing role of in-medium nucleon-nucleon collisions.
Secondly, the charge density distributions in velocity space, dZ/dvk and
dZ/dv?, reveal a strong memory of the entrance channel and, as such, a sizeable
nuclear transparency in the intermediate energy range. Lastly, it is shown that
the width of the transverse velocity distribution is proportional to the beam
velocity.


title: Quarkonia and heavy flavors at the LHC

abstract:
  Perspectives for quarkonia and heavy flavors measurements in heavy ion
collisions at LHC are reviewed


title:
Strangeness Enhancement in p-A Collisions: Consequences for the
  Interpretation of Strangeness Production in A-A Collisions

abstract:
  Published measurements of semi-inclusive Lambda production in p-Au collisions
at the AGS are used to estimate the yields of singly strange hadrons in
nucleus-nucleus A-A collisions. Results of a described extrapolation technique
are shown and compared to measurements of K+ production in Si-Al, Si-Au, and
Au-Au collisions at the AGS and net Lambda production in Su-Su, S-Ag, Pb-Pb,
and inclusive p-A collisions at the SPS. The extrapolations can account for
more than 75% of the measured strange particle yields in all of the studied
systems except for very central Au-Au collisions at the AGS where RQMD
comparisons suggest large re-scattering contributions.


title:
Centrality Dependent Particle Production at $y=0$ and $y \sim1$ in Au+Au
  Collisions at sqrt(sNN)=200GeV

abstract:
  Particle production of identified charged hadrons, $\pi^{\pm}$, $K^{\pm}$,
$p$, and $\bar{p}$ in Au+Au collisions at $\sqrt(snn) =$ 200 GeV has been
studied as a function of transverse momentum and collision centrality at $y=0$
and $y\sim1$ by the BRAHMS experiment at RHIC. Significant collective
transverse flow at kinetic freeze-out has been observed in the collisions. The
magnitude of the flow rises with the collision centrality. Proton and kaon
yields relative to the pion production increase strongly as the transverse
momentum increases and also increase with centrality. Particle yields per
participant nucleon show a weak dependence on the centrality for all particle
species. Hadron production remains relatively constant within one unit around
midrapidity in Au+Au collisions at $\sqrt(snn) =$ 200 GeV.


title: Resonance production in heavy ion collisions

abstract:
  Recent results of resonance production from RHIC at $\sqrt{s_{\rm NN}} = $
200 GeV and SPS at $\sqrt{s_{\rm NN}} = $ 17 GeV are presented and discussed in
terms of the evolution and freeze-out conditions of a hot and dense fireball
medium. Yields and spectra are compared with thermal model predictions at
chemical freeze-out. Deviations in the low transverse momentum region of the
resonance spectrum of the hadronic decay channel, suggest a strongly
interaction hadronic phase between chemical and kinetic freeze-out. Microscopic
models including resonance rescattering and regeneration are able to describe
the trend of the data. The magnitude of the regeneration cross sections for
different inverse decay channels are discussed. Model calculations which
include elastic hadronic interactions between chemical freeze-out and thermal
freeze-out based on the K(892)/K and $\Lambda$(1520)/$\Lambda$ ratios suggest a
time between two freeze-outs surfaces of $\Delta \tau>$ 4 fm/c. The difference
in momentum distributions and yields for the $\phi$(1020) resonance
reconstructed from the leptonic and hadronic decay channels at SPS energy are
discussed taking into account the impact of a hadronic phase and possible
medium modifications.


title: Precise half-life measurement of 110Sn and 109In isotopes

abstract:
  The half-lives of 110Sn and 109In isotopes have been measured with high
precision. The results are T1/2 =4.173 +- 0.023 h for 110Sn and T1/2 = 4.167
+-0.018 h for 109In. The precision of the half-lives has been increased by a
factor of 5 with respect to the literature values which makes results of the
recently measured 106Cd(alpha,gamma)110Sn and 106Cd(alpha,p)109In cross
sections more reliable.


title: What do we learn from Resonance Production in Heavy Ion Collisions?

abstract:
  Resonances with their short life time and strong coupling to the dense and
hot medium are suggested as a signature of the early stage of the fireball
created in a heavy ion collision \cite{rap00,lut01,lut02}. The comparison of
resonances with different lifetimes and quark contents may give information
about time evolution and density and temperature of during the expanding of
fireball medium. Resonances in elementary reactions have been measured since
1960. Resonance production in elementary collisions compared with heavy ion
collisions where we expect to create a hot and dense medium may show the direct
of influence of the medium on the resonances. This paper shows a selection of
the recent resonance measurements from SPS and RHIC heavy ion colliders.


title: The Future of Hard and Electromagnetic Probes at RHIC

abstract:
  Potential near- and long-term physics opportunities with jets, heavy flavors
and electromagnetic probes at the Relativistic Heavy Ion Collider (RHIC) are
presented. Much new physics remains to be unveiled using these probes, due to
their sensitivity to the initial high density stage of RHIC collisions, when
quark-gluon plasma (QGP) formation is expected. Additional physics will include
addressing deconfinement, chiral symmetry restoration, properties of the
strongly-coupled QGP and a possible weakly-interacting QGP, color glass
condensate in the initial state, and hadronization. To fully realize the
physics prospects of the RHIC energy regime, new detector components must be
added to existing experiments, the RHIC machine luminosity upgraded, and a
possible new detector with significantly extended coverage and capabilities
added.


title:
$\pi, K, p$ and $\bar{p}$ production from Au+Au collisions at
  $\sqrt{s_{_{NN}}} = 62.4$ GeV

abstract:
  The preliminary results of $\pi^{\pm}, K^{\pm}, p$ and $\bar{p}$ spectra are
reported from Au+Au collisions at $\sqrt{s_{_{NN}}} = 62.4$ GeV. Particle
identification is from the Time Projection Chamber and Time-of-Flight system at
STAR. The nuclear modification factor $R_{CP}$ for mesons ($\pi^{\pm},
K^{\pm}$) and baryons ($p, \bar{p}$) will also be discussed.


title: Low-Energy Deuteron Polarimeter

abstract:
  We built a Low Energy Deuteron Polarimeter which measures the
spin-polarization of deuteron beams in the energy range of 25 to 80 keV. This
polarimeter works by measuring azimuthal asymmetries in the D(\vec d, n)^{3}He
reaction and comparing them to known analyzing powers. We built this
polarimeter to test its performance and to cross-check other existing
polarimeters at KVI. We were able to use this polarimeter as a vector
polarimeter, but not as a tensor polarimeter because of an uncertain 'tensor
analyzing power' calibration.


title: The E895 pion correlation analysis -- a status report

abstract:
  Using a large solid-angle Time Projection Chamber (TPC), the E895
collaboration has measured charged particles emitted from Au+Au collisions at
2, 4, 6, and 8 AGeV at the Brookhaven AGS. Focussing on two-track acceptance
corrections, the current status of the E895 pi-minus HBT analysis is presented.
Preliminary one dimensional correlation functions for the 2 and 4 AGeV data are
presented, and future plans are discussed.


title:
Thesis: Pion, Kaon, Proton and Antiproton Spectra in d+Au and p+p
  Collisions at $\sqrt{s_{NN}}$= 200GeV at the Relativistic Heavy Ion Collider

abstract:
  Identified mid-rapidity particle spectra of $\pi^{\pm}$, $K^{\pm}$, and
$p(\bar{p})$ from 200 GeV p+p and d+Au collisions are reported. This data were
taken in 2003 run from the Solenoidal Tracker at RHIC (STAR) experiment. A
time-of-flight detector based on multi-gap resistive plate chamber (MRPC)
technology is used for particle identification. The intrinsic timing resolution
85 ps was achieved after the calibration. We observe that the spectra of
$\pi^{\pm}$, $K^{\pm}$, $p$ and $\bar{p}$ are considerably harder in d+Au than
those in p+p collisions. In $\sqrt{s_{_{NN}}} = 200$ GeV d+Au collisions, the
nuclear modification factor $R_{dAu}$ of protons rise faster than those of
pions and kaons. Besides, the particle-species dependence of the Cronin effect
is observed to be significantly smaller than that at lower energies. The ratio
of the nuclear modification factor ($R_{dAu}$) between $(p+\bar{p})$ and
charged hadrons ($h$) in the transverse momentum range $1.2<p_{T}<3.0$ GeV/c is
measured to be $1.19\pm0.05$(stat)$\pm0.03$(syst) in minimum-bias collisions
and shows little centrality dependence. The yield ratio of $(p+\bar{p})/h$ in
minimum-bias d+Au collisions is found to be a factor of 2 lower than that in
Au+Au collisions, indicating that the relative baryon enhancement observed in
heavy ion collisions at RHIC is due to the final state effects in Au+Au
collisions. The mechanism for Cronin effect is also discussed in this thesis by
comparison with the recombination model and with the initial multiple parton
scattering model. From the comparisons, we conclude that the Cronin effect in
200 GeV d+Au collisions is not initial state effect only, and that final state
effect plays an important role.


title:
CLIC-LHC Based FEL-Nucleus Collider: Feasibility and Physics Search
  Potential

abstract:
  The feasibility of a CLIC-LHC based FEL-nucleus collider is investigated. It
is shown that the proposed scheme satisfies all requirements of an ideal photon
source for the Nuclear Resonance Fluorescence method. The tunability,
monochromaticity and high polarization of the FEL beam together with high
statistics and huge energy of LHC nucleus beams will give an unique opportunity
to determine different characteristics of excited nuclear levels. The physics
potential of the proposed collider is illustrated for a beam of Pb nuclei.


title:
Investigation of proton-nuclear reactions on isotopes $^{129}$I,
  $^{237}$Np and $^{241}$Am at $E_p$ = 660 MeV

abstract:
  Cross sections of the residual nuclei production in $^{129}$I, $^{237}$Np and
$^{241}$Am target irradiated by proton beam with energy 660 MeV are measured by
means of activation analysis with the use of HPGe detectors. The number of
product nuclei identified amounts to 74 for $^{129}$I target, 53 for $^{237}$Np
target and 80 for $^{241}$Am target. Theoretical model analysis employing
eleven contemporary computer models of hadron-nuclear interactions is
performed. Insufficient for practical purposes precision of modelling of the
reactions under study is demonstrated. Methods for short-lived beta-unstable
reaction product identification are developed and amended, a program package
for gamma-spectrometry data analysis is described.


title:
Evaporation residues produced in spallation of 208Pb by protons at 500A
  MeV

abstract:
  The production cross sections of fragmentation-evaporation residues in the
reaction Pb+p at 500A MeV have been measured using the inverse-kinematics
method and the FRS spectrometer (GSI). Fragments were identified in nuclear
charge using ionisation chambers. The mass identification was performed
event-by-event using the B-rho - TOF - Delta-E technique. Although
partially-unresolved ionic charge states induced an ambiguity on the mass of
some heavy fragments, production rates could be obtained with a high accuracy
by systematically accounting for the polluting ionic charge states. The
contribution of multiple reactions in the target was subtracted using a new,
partly self-consistent code. The isobaric distributions are found to have a
shape very close to the one observed in experiments at higher energy. Kinematic
properties of the fragments were also measured. The total and the isotopic
cross sections, including charge-pickup cross sections, are in good agreement
with previous measurements. The data are discussed in the light of previous
spallation measurements, especially on lead at 1 GeV.


title: Jets in Nuclear Collisions: Status and Perspective

abstract:
  I review the status and future directions of jet-related measurements in high
energy nuclear collisions and their application as a probe of QCD matter.


title: Event by Event fluctuation in K/pi ratio at RHIC

abstract:
  We present the preliminary results from our analysis of event by event
fluctuation in K/pi ratio in Au+Au collision at \sqrt s_{NN} = 200 GeV and at
62.4 GeV using STAR detector at RHIC. Two different methods have been used to
extract the strength of dynamical fluctuation and the centrality dependence of
that. The results from the study of energy and centrality dependence of the
dynamical fluctuation are presented. From the excitation function it is seen
that at two RHIC energies the measure of dynamical fluctuation is constant with
values very close to that at 12.3 GeV at SPS. The dynamical fluctuation is
found to be positive and decreasing with increasing centrality at RHIC. The
results are compared with HIJING model calculation with jets. Results from
HIJING are found to be very close to data from central collisions whereas it
over predicts the data for peripheral events.


title:
High pT leading hadron suppression in nuclear collisions at sqrt(s_NN) =
  20 -- 200 GeV: data versus parton energy loss models

abstract:
  Experimental results on high transverse momentum (leading) hadron spectra in
nucleus-nucleus collisions in the range sqrt(s_NN) = 20 -- 200 GeV are reviewed
with an emphasis on the observed suppression compared to free space production
in proton-proton collisions at the corresponding center-of-mass energies. The
transverse-momentum and collision-energy (but seemingly not the in-medium path
length) dependence of the experimental suppression factors measured in central
collisions is consistent with the expectations of final-state non-Abelian
parton energy loss in a dense QCD medium.


title: First analysis of anisotropic flow with Lee--Yang zeroes

abstract:
  We report on the first analysis of directed and elliptic flow with the new
method of Lee--Yang zeroes. Experimental data are presented for Ru+Ru reactions
at 1.69 AGeV measured with the FOPI detector at SIS/GSI. The results obtained
with several methods, based on the event-plane reconstruction, on Lee--Yang
zeroes, and on multi-particle cumulants (up to 5th order) applied for the first
time at SIS energies, are compared. They show conclusive evidence that
azimuthal correlations between nucleons and composite particles at this energy
are largely dominated by anisotropic flow.


title:
Optical Readout Time Projection Chamber (O-TPC) for a Study of Oxygen
  Formation In Stellar Helium Burning

abstract:
  We are developing an Optical Readout Time Projection Chamber (O-TPC) detector
for the study of the 12C(a,g)16O reaction that determines the ratio of carbon
to oxygen in helium burning. This ratio is crucial for understanding the final
fate of a progenitor star and the nucleosynthesis of elements prior to a Type
II supernova; an oxygen rich star is predicted to collapse to a black hole, and
a carbon rich star to a neutron star. Type Ia supernovae (SNeIa) are used as
standard candles for measuring cosmological distances with the use of an
empirical light curve-luminosity stretching factor. It is essential to
understand helium burning that yields the carbon/oxygen white dwarf and thus
the initial stage of SNeIa. The O-TPC is intended for use with high intensity
photon beams extracted from the HIgS/TUNL facility at Duke University to study
the 16O(g,a)12C reaction, and thus the direct reaction at energies as low as
0.7 MeV. We are conducting a systematical study of the best oxygen containing
gas with light emitting admixture(s) for use in such an O-TPC. Preliminary
results with CO_2 + TEA mixture were obtained


title: The width of the rapidity distribution in heavy ion collisions

abstract:
  We have studied the widths of the rapidity distributions of particles
produced in nucleus-nucleus collisions at various center of mass energies and
as a function of centrality at SPS energies. We show that the width of the
rapidity distribution is sensitive to longitudinal flow, velocity of sound in
the medium, and rescattering of particles. We explore the possibility of
distinguishing the initial hard scattering regime from final state effects by
studying the variation in the width of the rapidity distribution of the
particles with centrality for various pT values.


title: Half Life of the Doubly-magic r-Process Nucleus 78Ni

abstract:
  Nuclei with magic numbers serve as important benchmarks in nuclear theory. In
addition, neutron-rich nuclei play an important role in the astrophysical rapid
neutron-capture process (r-process). 78Ni is the only doubly-magic nucleus that
is also an important waiting point in the r-process, and serves as a major
bottleneck in the synthesis of heavier elements. The half-life of 78Ni has been
experimentally deduced for the first time at the Coupled Cyclotron Facility of
the National Superconducting Cyclotron Laboratory at Michigan State University,
and was found to be 110 (+100 -60) ms. In the same experiment, a first
half-life was deduced for 77Ni of 128 (+27 -33) ms, and more precise half-lives
were deduced for 75Ni and 76Ni of 344 (+20 -24) ms and 238 (+15 -18) ms
respectively.


title: Correlations in STAR: interferometry and event structure

abstract:
  STAR observes a complex picture of RHIC collisions where correlation effects
of different origins -- initial state geometry, semi-hard scattering,
hadronization, as well as final state interactions such as quantum intensity
interference -- coexist. Presenting the measurements of flow, mini-jet
deformation, modified hadronization, and the Hanbury Brown and Twiss effect, we
trace the history of the system from the initial to the final state. The
resulting picture is discussed in the context of identifying the relevant
degrees of freedom and the likely equilibration mechanism.


title: Search for particle-bound 26-O and 28-F in p-stripping reactions

abstract:
  We have searched for particle-bound 26-O and 28-F isotopes in the reaction
products of secondary 27-F and 29-Ne beams, respectively. No events have been
observed. Upper limits for the respective production cross sections by
one-p-stripping reactions are established under the assumption that 26-O and
28-F are particle bound. Since the experimental upper limits are much lower
than common estimates we conclude that neither 26-O nor 28-F are likely
particle bound.


title:
Comment on Esbensen, Bertsch and Snover Concerning Reconciling Coulomb
  Dissociation and Radiative Capture Measurements

abstract:
  The RIKEN data on the Coulomb Dissociation (CD) of 8B were shown to be in
good agreement with the Direct Capture (DC) data on the 7Be(p,g)8B reaction
(that were known at that time) of Filippone {\em et al.} Yet recently it was
claimed that the RIKEN2 CD data must be corrected in order to be reconciled
with the slope of DC data. Considering the (correct) so called scale
independent b-slope parameter of the RIKEN2 CD data, the resultant corrected
b-slope parameter suggested by Esbensen, Bertsch and Snover is shown to be
considerably smaller than the so called average b-slope parameter of DC data.
The suggested corrections of the b-slope parameter lead to a large disagreement
with DC data, in sharp contrast to the claim. The slope corrections are only
significant for the RIKEN2 CD data. For the GSI kinematics, where in fact one
may observe slope different than for DC (at least for the GSI1 data), they find
a fortuitous cancellation that leads to a vanishingly small slope correction.
Hence the validity of these correction based on the observed slopes can not be
substantiated.


title: On the possible detection of 4n events in the breakup of 14Be

abstract:
  In a recent paper --F.M. Marques et al, PRC 65 (2002) 044006-- a new approach
to the production and detection of free neutron clusters was proposed and
applied to data acquired for the breakup of 14Be. Six events that exhibited
characteristics consistent with a bound tetraneutron were observed in
coincidence with 10Be fragments. Here, two issues that were not considered in
the original paper are addressed: namely the signal expected from a low-energy
4n resonance, and the detection of a bound 4n through proccesses other than
elastic scattering by a proton. Searches complementary to the original study
are also briefly noted.


title: First observation of in-medium modifications of the omega meson

abstract:
  The photoproduction of omega mesons on nuclei has been investigated using the
Crystal Barrel/TAPS experiment at the ELSA tagged photon facility in Bonn. The
aim is to study possible in-medium modifications of the omega meson via the
reaction A(gamma, omega)X. Results obtained for Nb are compared to a reference
measurement on a liquid hydrogen target. While for recoiling, long-lived mesons
(pi, eta and etaprime), which decay outside of the nucleus, a difference in the
lineshape for the two data samples is not observed, we find a significant
enhancement towards lower masses for omega mesons with low momenta produced on
the Nb target.


title: Recent high pT measurements in STAR

abstract:
  After five years of data taking, the STAR experiment at the Relativistic
Heavy Ion Collider (RHIC) at Brookhaven National Laboratory provides precise
measurements of particle production at high transverse momentum in p-p, d-Au,
and Au-Au collisions at sqrt(s) = 200 GeV. We review recent results on the
flavor dependence of high pT particle suppression and hadron particle spectra
at sqrt(s) = 62.4 GeV. New results on two-particle angular correlations for
identified trigger particles and for low momentum associated charged hadrons in
p-p and Au-Au as well as near-side $\Delta\eta$ correlations will be presented
and discussed.


title: Double Pion Photoproduction from Nuclei

abstract:
  Differences in the photoproduction of mesons on the free proton and on nuclei
are expected to reveal changes in the properties of hadrons. Inclusive studies
of nuclear photoabsorption have provided evidence of medium modifications.
However, the results have not been explained in a model independent way. A
deeper understanding of the situation is anticipated from a detailed
experimental study of meson photoproduction from nuclei in exclusive reactions.
In the energy regime above the Delta(1232) resonance, the dominant double pion
production channels are of particular interest. Double pion photoproduction
from nuclei is also used to investigate the in-medium modification of
meson-meson interactions.


title: Direct Photon Measurement at RHIC-PHENIX

abstract:
  Results on direct photon measurements from the PHENIX experiment at RHIC are
presented. The direct photon yields for $p_T>$6 GeV/$c$ as a function of
centrality in Au-Au collisions at $\sqrt{s_{NN}}$=200 GeV are found to be
consistent with NLO pQCD calculation scaled by the number of binary collisions.
The results suggest that the photons observed are emitted from the initial
stage of hard scattering. Comparisons with several theoretical calculations are
also presented.


title:
Measurement of the reaction gamma p --> K0 Sigma+ at photon energies up
  to 2.6 GeV

abstract:
  The reaction gamma p --> K0 Sigma+ was measured in the photon energy range
from threshold up to 2.6 GeV with the SAPHIR detector at the electron stretcher
facility, ELSA, in Bonn. Results are presented on the reaction cross section
and the polarization of the Sigma+ as a function of the kaon production angle
in the centre-of-mass system, cos(Theta_K^{c.m.}), and the photon energy. The
cross section is lower and varies less with photon energy and kaon production
angle than that of gamma p --> K+ Sigma0. The Sigma+ is polarized predominantly
at cos(Theta_K^{c.m.}) \approx 0. The data presented here are more precise than
previous ones obtained with SAPHIR and extend the photon energy range to higher
values. They are compared to isobar model calculations.


title: BRAHMS Overview

abstract:
  A brief review of BRAHMS measurements of bulk particle production in RHIC
Au+Au collisions at $\sqrt{s_{NN}}=200GeV$ is presented, together with some
discussion of baryon number transport. Intermediate $p_{T}$ measurements in
different collision systems (Au+Au, d+Au and p+p) are also discussed in the
context of jet quenching and saturation of the gluon density in Au ions at RHIC
energies. This report also includes preliminary results for identified
particles at forward rapidities in d+Au and Au+Au collisions.


title:
Experimental Signature of Medium Modifications for rho and omega Mesons
  in the 12 GeV p + A Reactions

abstract:
  The invariant mass spectra of e+e- pairs produced in 12-GeV proton-induced
nuclear reactions are measured at the KEK Proton-Synchrotron. On the low-mass
side of the omega meson peak, a significant enhancement over the known hadronic
sources has been observed. The mass spectra, including the excess, are well
reproduced by a model that takes into account the density dependence of the
vector meson mass modification, as theoretically predicted.


title: A luminosity monitor for the A4 parity violation experiment at MAMI

abstract:
  A water Cherenkov luminosity monitor system with associated electronics has
been developed for the A4 parity violation experiment at MAMI. The detector
system measures the luminosity of the hydrogen target hit by the MAMI electron
beam and monitors the stability of the liquid hydrogen target. Both is required
for the precise study of the count rate asymmetries in the scattering of
longitudinally polarized electrons on unpolarized protons. Any helicity
correlated fluctuation of the target density leads to false asymmetries. The
performance of the luminosity monitor, investigated in about 2000 hours with
electron beam, and the results of its application in the A4 experiment are
presented.


title: Correlation structure of STAR events

abstract:
  STAR observes a complex picture of RHIC collisions where correlation effects
of different origin -- initial state geometry, semi-hard scattering,
hadronization -- coexist. I present STAR measurements of particle number and
velocity field correlations obtained using a variety of techniques, including
direct construction, fluctuation inversion and discrete wavelet transform.
Connections between the techniques are discussed in detail. The resulting
physics picture is presented in the context of identifying the relevant degrees
of freedom and the likely equilibration mechanism.


title:
Identified Particle Production in p+p, d+Au, and Au+Au Collisions at
  RHIC

abstract:
  Measurements of identified particle production with the PHENIX experiment at
RHIC have reached a mature state, where a multitude of nuclear systems at
different colliding energies have been studied. The discovery configurations of
$\sqrt{s_{NN}}$ = 130 and 200 GeV Au+Au collisions have now been supplemented
by additional Au+Au and Cu+Cu configurations at various energies, along with
baseline p+p and d+Au runs at $\sqrt{s_{NN}}$ = 200 GeV. In this work we
present a systematic study of the Cronin effect in d+Au collisions and recent
results from p+p collisions. We then proceed to make a critical comparison of
pion, kaon and proton production in heavy ion and baseline systems, and discuss
the observed nuclear effects on hadron production.


title:
Study of refractive structure in the inelastic 16O+16O scattering at the
  incident energies of 250 to 1120 MeV

abstract:
  The data of inelastic 16O+16O scattering to the lowest 2+ and 3- excited
states of 16O have been measured at Elab = 250, 350, 480, 704 and 1120 MeV and
analyzed consistently in the distorted wave Born approximation (DWBA), using
the semi- microscopic optical potentials and inelastic form factors given by
the folding model, to reveal possible refractive structure of the nuclear
rainbow that was identified earlier in the elastic 16O+16O scattering channel
at the same energies. Given the known transition strengths of the 2+ and 3-
states of 16O well determined from the (e,e') data, the DWBA description of the
inelastic data over the whole angular range was possible only if the absorption
in the exit channels is significantly increased (especially, for the
16O+16O(2+) exit channel). Although the refractive pattern of the inelastic
16O+16O scattering was found to be less pronounced compared to that observed in
the elastic scattering channel, a clear remnant of the main rainbow maximum
could still be seen in the inelastic cross section at Elab = 350 - 704 MeV.


title:
Study of the dissipative binary channels in the 107Ag+58Ni reaction at
  52 MeV/nucleon

abstract:
  The binary dissipative channels are characterized by the presence of two main
fragments in the exit channel. They have been studied in the 107Ag+58Ni
reaction at 52 MeV/nucleon of bombarding energy. For that purpose a modified
version of the INDRA multidetector has been used in conjunction with a part of
the CHIMERA multidetector. Preliminary results on the excitation energy and
intrinsic angular momentum of the quasi-projectile are reported and compared to
a dynamical calculation.


title:
Multi-strange baryon elliptic flow in Au+Au collisions at sqrt(s_NN)=
  200 GeV

abstract:
  We report on the first measurement of elliptic flow $v_2(p_T)$ of
multi-strange baryons $\Xi+\bar{Xi}$ and $\Omega+\bar{Omega} in heavy-ion
collisions. In minimum bias Au+Au collisions at sqrt(s_NN) = 200 GeV, a
significant amount of elliptic flow, comparable to other non-strange baryons,
is observed for multi-strange baryons which are expected to be particularly
sensitive to the dynamics of the partonic stage of heavy-ion collisions. The
$p_T$ dependence of $v_2$ of the multi-strange baryons confirms the number of
constituent quark scaling previously observed for lighter hadrons. These
results support the idea that a substantial fraction of the observed collective
motion is developed at the early partonic stage in ultra-relativistic nuclear
collisions at RHIC.


title: Future of Jets, Heavy Flavor, and EM Probes at RHIC and RHIC II

abstract:
  Exciting results from the Relativistic Heavy Ion Collider (RHIC) have been
presented at this Workshop. However, fundamental questions remain to be
addressed in the future regarding whether the system is deconfined, chiral
symmetry is restored, a color glass condensate exists in the initial state, and
how the system evolves through eventual hadronization. Jets, heavy flavors and
electromagnetic probes are sensitive to the initial high density stage of RHIC
collisions, and should provide new insight. Significant additional capabilities
will be added with a luminosity upgrade of RHIC (to RHIC II), upgrades of
present detectors and a possible, new comprehensive detector at RHIC II.


title:
A high power liquid hydrogen target for the Mainz A4 parity violation
  experiment

abstract:
  We present a new powerful liquid hydrogen target developed for the precise
study of parity violating electron scattering on hydrogen and deuterium. This
target has been designed to have minimal target density fluctuations under the
heat load of a 20$\mu$A CW 854.3 MeV electron beam without rastering the
electron beam. The target cell has a wide aperture for scattered electrons and
is axially symmetric around the beam axis. The construction is optimized to
intensify heat exchange by a transverse turbulent mixing in the hydrogen
stream, which is directed along the electron beam. The target is constructed as
a closed loop circulating system cooled by a helium refrigerator. It is
operated by a tangential mechanical pump with an optional natural convection
mode. The cooling system supports up to 250 watts of the beam heating removal.
Deeply subcooled liquid hydrogen is used for keeping the in-beam temperature
below the boiling point. The target density fluctuations are found to be at the
level 10$^{-3}$ at a beam current of 20 $\mu$A.


title:
Evaluation of excitation energy and spin from light charged particles
  multiplicities in heavy-ion collisions

abstract:
  A simple procedure for evaluating the excitation energy and the spin transfer
in heavy-ion dissipative collisions is proposed. It is based on a prediction of
the GEMINI evaporation code : for a nucleus with a given excitation energy, the
average number of emitted protons decreases with increasing spin, whereas the
average number of alpha particles increases. Using that procedure for the
reaction 107Ag+58Ni at 52 MeV/nucleon, the excitation energy and spin of
quasi-projectiles have been evaluated. The results obtained in this way have
been compared with the predictions of a model describing the primary dynamic
stage of heavy-ion collisions.


title: Three-centre cluster structure in 11C and 11B

abstract:
  Studies of the 16O(9Be,alpha 7Be)14C, 7Li(9Be,alpha 7Li)5He and 7Li(9Be,alpha
alpha t)5He reactions at E(beam)=70 and 55 MeV have been performed using
resonant particle spectroscopy techniques. The 11C excited states decaying into
alpha+7Be(gs) are observed between 8.5 and 13.5 MeV. The alpha+7Li(gs),
alpha+7Li*(4.652 MeV) and t+8Be(gs) decays of 11B excited states between 9 and
19 MeV are observed. The decay processes are used to indicate the possible
three-centre 2alpha+3He (2alpha+3H) cluster structure of observed states. This
cluster structure is more prominent in the positive-parity states, where two
rotational bands with large deformations are suggested. Excitations of some of
the observed T=1/2 resonances coincide with the energies of previously measured
T=3/2 isobaric analogs of the 11Be states,indicating that these states may have
mixed isospin.