title:
Measurement of the Polarized Structure Function $\sigma_{LT^\prime}$ for
  Pion Electroproduction in the Roper Resonance Region

abstract:
  The polarized longitudinal-transverse structure function $\sigma_{LT^\prime}$
measures the interference between real and imaginary amplitudes in pion
electroproduction and can be used to probe the coupling between resonant and
non-resonant processes. We report new measurements of $\sigma_{LT^\prime}$ in
the $N(1440){1/2}^+$ (Roper) resonance region at $Q^2=0.40$ and 0.65 GeV$^2$
for both the $\pi^0 p$ and $\pi^+ n$ channels. The experiment was performed at
Jefferson Lab with the CEBAF Large Acceptance Spectrometer (CLAS) using
longitudinally polarized electrons at a beam energy of 1.515 GeV. Complete
angular distributions were obtained and are compared to recent phenomenological
models. The $\sigma_{LT^\prime}(\pi^+ n)$ channel shows a large sensitivity to
the Roper resonance multipoles $M_{1-}$ and $S_{1-}$ and provides new
constraints on models of resonance formation.


title:
Precise Determination of the Neutron Magnetic Form Factor to Higher
  $Q^2$

abstract:
  The neutron elastic magnetic form factor $G_M^n$ has been extracted from
quasielastic scattering from deuterium in the CEBAF Large Acceptance
Spectrometer, CLAS. The kinematic coverage of the measurement is continuous
over a broad range, extending from below 1 $GeV^2$ to nearly 5 $GeV^2$ in
four-momentum transfer squared. High precision is achieved by employing a ratio
technique in which most uncertainties cancel, and by a simultaneous in-situ
calibration of the neutron detection efficiency, the largest correction to the
data. Preliminary results are shown with statistical errors only.


title: Flux profile scanners for scattered high-energy electrons

abstract:
  The paper describes the design and performance of flux integrating Cherenkov
scanners with air-core reflecting light guides used in a high-energy, high-flux
electron scattering experiment at the Stanford Linear Accelerator Center. The
scanners were highly radiation resistant and provided a good signal to
background ratio leading to very good spatial resolution of the scattered
electron flux profile scans.


title: Fusion Induced by Radioactive Ion Beams

abstract:
  The use of radioactive beams opens a new frontier for fusion studies. The
coupling to the continuum can be explored with very loosely bound nuclei.
Experiments were performed with beams of nuclei at or near the proton and
neutron drip-lines to measure fusion and associated reactions in the vicinity
of the Coulomb barrier. In addition, the fusion yield is predicted to be
enhanced in reactions involving very neutron-rich unstable nuclei. Experimental
measurements were carried out to investigate if it is feasible to use such
beams to produce new heavy elements. The current status of these experimental
activities is given in this review.


title: Incident energy dependence of pt correlations at relativistic energies

abstract:
  We present results for two-particle transverse momentum correlations, <dpt,i
dpt,j>, as a function of event centrality for Au+Au collisions at sqrt(sNN) =
20, 62, 130, and 200 GeV at the Relativistic Heavy Ion Collider. We observe
correlations decreasing with centrality that are similar at all four incident
energies. The correlations multiplied by the multiplicity density increase with
incident energy and the centrality dependence may show evidence of processes
such as thermalization, minijet production, or the saturation of transverse
flow. The square root of the correlations divided by the event-wise average
transverse momentum per event shows little or no beam energy dependence and
generally agrees with previous measurements at the Super Proton Synchrotron.


title: Systematics of Identified Hadron Spectra at PHENIX

abstract:
  Mid-rapidity transverse momentum distributions for $\pi^\pm$, $K^\pm$, p and
$\pbar$ are measured by the PHENIX experiment at RHIC in Au+Au, d+Au and p+p
collisions at \ssnn=200GeV up to ~2--4GeV. Also particle ratios of
$\pi^{-}/\pi^{+}$, $K^{-}/K^{+}$, $\pbar/p$, $p/\pi$ and $\pbar/\pi$ are
measured, as well as the nuclear modification factor, all as a function of \pt
and in every of the above collision systems. Finally, the measured p+p and
Au+Au spectra are compared to the Buda-Lund hydro model.


title: Probing dense and hot matter with low-mass dileptons and photons

abstract:
  Results on low-mass dileptons, covering the very broad energy range from the
BEVALAC up to SPS are reviewed. The emphasis is on the open questions raised by
the intriguing results obtained so far and the prospects for addressing them in
the near future with the second generation of experiments, in particular HADES,
NA60 and PHENIX.


title:
Heavy ion collisions: Correlations and Fluctuations in particle
  production

abstract:
  Correlations and fluctuations (the latter are directly related to the
2-particle correlations) is one of the important directions in analysis of
heavy ion collisions. At the current stage of RHIC exploration, when the
details matter, basically any physics question is addressed with help of
correlation techniques. In this talk I start with a general introduction to the
correlation and fluctuation formalism and discuss weak and strong sides of
different type of observables. In more detail, I discuss the two-particle $p_t$
correlations/$\mpt$ fluctuations. In spite of not observing any dramatic
changes in the event-by-event fluctuations with energy, which would indicate a
possible phase transition, such correlations measurements remain an interesting
and important subject, bringing valuable information. Lastly, I show how radial
flow can generate characteristic azimuthal, transverse momentum and rapidity
correlations, which could qualitatively explain many of recently observed
phenomena in nuclear collisions.


title: Parton energy loss, saturation, and recombination at BRAHMS

abstract:
  Particle production as observed with the BRAHMS experiment at RHIC is
presented. Preliminary baryon/meson ratios and nuclear modification factors at
different rapidities will be discussed.


title: Advanced simulation code for alpha spectrometry

abstract:
  A Monte Carlo code, known as AASI, is developed for simulating energy spectra
in alpha spectrometry. The code documented here is a comprehensive package
where all the major processes affecting the spectrum are included. A unique
feature of the code is its ability to take into account coincidences between
the particles emitted from the source. Simulations and measurements highlight
the importance of coincidences in high-resolution alpha spectrometry. To show
the validity of the simulated results, comparisons with measurements and other
simulation codes are presented.


title: Recent Physics At COSY--A Review

abstract:
  The COSY accelerator in J\"{u}lich is presented together with its internal
and external detectors. The physics program performed recently is discussed
with emphasis on strangeness physics and precision experiments.


title: Investigation of the 6He cluster structures

abstract:
  The 4He+2n and t+t clustering of the 6He ground state were investigated by
means of the transfer reaction 6He(p,t)4He at 25 MeV/nucleon. The experiment
was performed in inverse kinematics at GANIL with the SPEG spectrometer coupled
to the MUST array. Experimental data for the transfer reaction were analyzed by
a DWBA calculation including the two neutrons and the triton transfer. The
couplings to the 6He --> 4He + 2n breakup channels were taken into account with
a polarization potential deduced from a coupled-discretized-continuum channels
analysis of the 6He+1H elastic scattering measured at the same time. The
influence on the calculations of the 4He+t exit potential and of the triton
sequential transfer is discussed. The final calculation gives a spectroscopic
factor close to one for the 4He+2n configuration as expected. The spectroscopic
factor obtained for the t+t configuration is much smaller than the theoretical
predictions.


title: High $p_T$ correlations of $\gamma$ and charged hadrons at RHIC

abstract:
  Prompt photon production in ultra-relativistic heavy-ion collisions provides
a calibrated probe for the study of the properties of high energy density QCD
matter. Especially interesting are the measurements of $\gamma$-tagged jets
where the hard scattering scale is known and can be used to determine the
partonic energy loss in the dense matter. We discuss the potential of
$\gamma$-jet measurements at the Relativistic Heavy Ion Collider (RHIC) and
argue that the observed supression of the away-side correlations for di-jet
production in central Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV should
significantly reduce the backgrounds for the $\gamma$-jet coincidence
measurements.


title: AA versus pp and dA: A puzzling scaling in HBT@RHIC

abstract:
  A nontrivial space-time structure of the hot system created at RHIC is the
defining aspect of the physics of relativistic heavy ion collisions. Femtoscopy
through pion intensity interferometry provides direct access to the dynamic
geometric substructure of the freeze-out stage, and appears to confirm source
evolution via collective flow. Since flow is usually considered to be a bulk
phenomenon, it is surpring to find a simple scaling in preliminary HBT radii
from p+p, d+Au and Au+Au collisions. Investigating the light system data in
detail, we discuss a new way to visualize the ``fine structure'' of 3D
correlation functions and the potential importance of long range correlations.


title: Stopping and Baryon Transport in Heavy Ion Reactions

abstract:
  In this report I will give an experimental overview on nuclear stopping in
hadron collisions, and relate observations to understanding of baryon
transport. Baryon number transport is not only evidenced via net-proton
distributions but also by the enhancement of strange baryons near mid-rapidity.
Although the focus is on high-energy data obtained from pp and heavy ions from
RHIC, relevant data from SPS and ISR will be considered. A discussion how the
available data at higher energy relates and gives information on baryon
junction, quark-diquark breaking will be made.


title:
Density Dependence of the Symmetry energy and the Equation of State of
  Isospin Asymmetric Nuclear Matter

abstract:
  The density dependence of the symmetry energy in the equation of state of
isospin asymmetric nuclear matter is studied using the isoscaling of the
fragment yields and the antisymmetrized molecular dynamic calculation. It is
observed that the experimental data at low densities are consistent with the
form of symmetry energy,E$_{sym}$ $\approx$ 31.6 ($\rho/\rho_{\circ})^{0.69}$,
in close agreement with those predicted by the results of variational many-body
calculation. A comparison of the present result with those reported recently
using the NSCL-MSU data suggests that the heavy ion studies favor a dependence
of the form, E$_{sym}$ $\approx$ 31.6 ($\rho/\rho_{\circ})^{\gamma}$, where
$\gamma$ = 0.6 - 1.05. This constraints the form of the density dependence of
the symmetry energy at higher densities, ruling out an extremely " stiff " and
" soft " dependences.


title: Measurement of the asymmetries in 3He(e,e'p)d and 3He(e,e'p)np

abstract:
  The electron-target-asymmetries A_parallel and A_perpendicular with target
spin parallel and perpendicular to the momentum transfer q were measured for
both the two-- and three-body breakup of 3He in the 3He(e,e'p)-reaction.
Polarized electrons were scattered off polarized 3He in the quasielastic regime
in parallel kinematics with the scattered electron and the knocked-out proton
detected using the Three-Spectrometer-Facility at MAMI. The results are
compared to Faddeev calculations which take into account Final State
Interactions as well as Meson Exchange Currents. The experiment confirms the
prediction of a large effect of Final State Interactions in the asymmetry of
the three-body breakup and of an almost negligible one for the two-body
breakup.


title:
Identified particle production at high transverse momentum in
  nucleus-nucleus collisions at RHIC

abstract:
  Experimental results for identified hadron spectra in AA collisions at RHIC
are reviewed. Jet suppression in central AuAu collisions at 200 GeV is seen in
leading meson and baryon spectra at high p_t. Enhanced baryon production at
intermediate p_T (2<p_t<5 GeV/c) is related to quark content but not its
mass.In d+Au collisions Cronin enhancement is observed with larger magnitude
for baryons than for mesons, but this difference can not explain the
baryon-to-meson ratio in Au+Au collisions. In Au+Au the observations at 62.4
GeV and 200 GeV are very similar, but smaller suppresion of the leading
particles is seen at low beam energy, which is evidence for a smooth beam
energy dependence of the effect. Near and away side jets seen in two-particle
correlations are very similar for the leading baryons and mesons.


title: Femtoscopy in Relativistic Heavy Ion Collisions: Two Decades of Progress

abstract:
  Analyses of two-particle correlations have provided the chief means for
determining spatio-temporal characteristics of relativistic heavy ion
collisions. We discuss the theoretical formalism behind these studies and the
experimental methods used in carrying them out. Recent results from RHIC are
put into context in a systematic review of correlation measurements performed
over the past two decades. The current understanding of these results is
discussed in terms of model comparisons and overall trends.


title:
Entrance channel dependence in compound nuclear reactions with loosely
  bound nuclei

abstract:
  The measurement of light charged particles evaporated from the reaction
6,7Li+6Li has been carried out at extreme backward angle in the energy range 14
- 20 MeV. Calculations from the code ALICE91 show that the symmetry of the
target-projectile combination and the choice of level density parameter play
important roles in explaining the evaporation spectra for these light particle
systems. In above barrier energy region the fusion cross-section is not
suppressed for these loosely bound nuclei.


title: First observation of 54Zn and its decay by two-proton emission

abstract:
  The nucleus 54Zn has been observed for the first time in an experiment at the
SISSI/LISE3 facility of GANIL in the quasi-fragmentation of a 58Ni beam at 74.5
MeV/nucleon in a natNi target. The fragments were analysed by means of the
ALPHA-LISE3 separator and implanted in a silicon-strip detector where
correlations in space and time between implantation and subsequent decay events
allowed us to generate almost background free decay spectra for about 25
different nuclei at the same time. Eight 54Zn implantation events were
observed. From the correlated decay events, the half-life of 54Zn is determined
to be 3.2 +1.8/-0.8 ms. Seven of the eight implantations are followed by
two-proton emission with a decay energy of 1.48(2) MeV. The decay energy and
the partial half-life are compared to model predictions and allow for a test of
these two-proton decay models.


title:
High Pt Suppression at Forward Rapidities in d+Au and Au+Au at
  Sqrt(s)=200 GeV

abstract:
  We present centrality dependent charged hadron yields at several
pseudorapidities from Au+Au collisions at Sqrt(s)=200GeV measured with BRAHMS
spectrometers. Nuclear modification factors RAA and RCP for charged hadrons at
forward angles in Au+Au and d+Au collisions at RHIC will be discussed.


title: Heavy-flavor production at RHIC

abstract:
  Experimental results on heavy-quark production in proton-proton,
deuteron-gold, and gold-gold collisions at sqrt(s_(NN)) = 200 GeV at the
Relativistic Heavy Ion Collider (RHIC) are reviewed.


title:
Comment on "Fission Mass Widths in $^{19}$F + $^{232}$Th, $^{16}$O +
  $^{235,238}$ U reactions at near barrier energies

abstract:
  A critical re-analysis of the experimental data to reject transfer fission
component did not change the fragment mass widths and hence the conclusion
regarding abrupt rise in mass widths with decreasing energy around Coulomb
barrier remains unchanged


title: Heavy ion Physics with the ATLAS Detector

abstract:
  Soon after the LHC is commissioned with proton beams the ATLAS experiment
will begin studies of Pb-Pb collisions with a center of mass energy of ?sNN =
5.5 TeV. The ATLAS program is a natural extension of measurements at RHIC in a
direction that exploits the higher LHC energies and the superb ATLAS
calorimeter and tracking coverage. At LHC energies, collisions will be produced
with even higher energy density than observed at RHIC. The properties of the
resulting hot medium can be studied with higher energy probes, which are more
directly interpreted through modification of jet properties emerging from these
collisions, for example. Other topics which are enabled by the 30-fold increase
in center of mass energy include probing the partonic structure of nuclei with
hard photoproduction (in UltraPeripheral collisions) and in p-Pb collisions.
Here we report on evaluation of ATLAS capabilities for Heavy Ion Physics.


title:
High transverse momentum identified particle spectra in 200 GeV
  collisions from STAR

abstract:
  Significant baryon over meson enhancement was measured at RHIC in the
intermediate transverse momentum range of $p_T=2-4$ GeV/$c$ ("baryon-meson
puzzle"). With STAR detector we were able to extend particle identification
towards higher transverse momentum offering further insights into the particle
production mechanisms at intermediate to high $p_T$. In this paper we present
results on charged pion, proton and anti-proton spectra and ratios at
intermediate to high $p_T$ exploiting the relativistic rise of the specific
ionization energy loss measured in the STAR Time Projection Chamber. These
measurements provide valuable information about the production mechanisms of
particles at intermediate $p_T$ in relativistic heavy ion collisions, e.g.
coalescence/recombination versus jet fragmentation.


title:
Hadronization and chirality in strongly interacting partonic matter -
  the future of the RHIC program

abstract:
  New physics and detector concepts for a future pp and heavy ion program at
the RHIC-II accelerator facility will be discussed. I will focus on hadronic
observables which enable us to gain a better understanding on the hadronization
from a sQGP and the chiral symmetry restoration in a sQGP. The ultimate
question of how matter acquires mass can be addressed by this program in a
complementary way to the Higgs search in high energy physics. The contributions
of the RHIC program to the study of QCD will be discussed in detail.


title: Two Pion Production in Photon Induced Reactions

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: Recoil Polarization for Delta Excitation in Pion Electroproduction

abstract:
  We measured angular distributions of recoil-polarization response functions
for neutral pion electroproduction for W=1.23 GeV at Q^2=1.0 (GeV/c)^2,
obtaining 14 separated response functions plus 2 Rosenbluth combinations; of
these, 12 have been observed for the first time. Dynamical models do not
describe quantities governed by imaginary parts of interference products well,
indicating the need for adjusting magnitudes and phases for nonresonant
amplitudes. We performed a nearly model-independent multipole analysis and
obtained values for Re(S1+/M1+)=-(6.84+/-0.15)% and Re(E1+/M1+)=-(2.91+/-0.19)%
that are distinctly different from those from the traditional Legendre analysis
based upon M1+ dominance and sp truncation.


title:
Strange and Multi-Strange Particle Production in P+P Collisions at
  $\sqrt{s}$=200 Gev in Star

abstract:
  We present measurements of the transverse momentum spectra for K0s, Lambda,
Xi and their antiparticles in p+p collisions at $\sqrt{s}=200$ GeV. The
extracted mid-rapidity yields and <pT> are in agreement with previous
$p+\bar{p}$ experiments while they have smaller statistical errors. We compare
the measured particle spectra and <pT> values to predictions from the PYTHIA
leading order pQCD model (v6.221) and see significant disagreements with the
default settings. Finally we compare the spectra to the latest calculations
from NLO pQCD and see a good agreement for the K0s, but large discrepancies
Lambda.


title:
Extensive Particle Identification with TPC and TOF at the STAR
  Experiment

abstract:
  Particle identification (PID) capabilities are studied by using the Time
Projection Chamber (TPC) and a Time-Of-Flight (TOF) detector together at STAR.
The identification capability of charged hadrons is greatly extended compared
with that achieved by TPC and TOF separately. Particle spectra from p+p, d+Au
collisions at $\sqrt{s_{_{NN}}}=200$ GeV and Au+Au collisions at
$\sqrt{s_{_{NN}}}=62.4$ GeV are used to develop the methods. The transverse
momentum ($p_T$) ranges of $\pi$, and $p(\bar{p})$ identification are from
$\sim0.3$ GeV/$c$ to $\sim10$ GeV/$c$. The high $p_T$ reach is limited by
statistics in current data sets. An important conceptual advance was developed
to identify electrons by using a combination of dE/dx in TPC and velocity
information from the TOF detectors, which is important for future low-mass
dilepton program at STAR.


title: Near-threshold measurement of the 4He(g,n) reaction

abstract:
  A near-threshold 4He(g,n) cross-section measurement has been performed at
MAX-lab. Tagged photons from 23 < Eg < 42 MeV were directed toward a liquid 4He
target, and neutrons were detected by time-of-flight in two liquid-scintillator
arrays. Seven-point angular distributions were measured for eight photon
energies. The results are compared to experimental data measured at comparable
energies and Recoil-Corrected Continuum Shell Model, Resonating Group Method,
and recent Hyperspherical-Harmonic Expansion calculations. The angle-integrated
cross-section data is peaked at a photon energy of about 28 MeV, in
disagreement with the value recommended by Calarco, Berman, and Donnelly in
1983.


title: e+e--pair production in Pb-Au collisions at 158 GeV per nucleon

abstract:
  We present the combined results on electron-pair production in 158 GeV/n
{Pb-Au} ($\sqrt{s}$= 17.2 GeV) collisions taken at the CERN SPS in 1995 and
1996, and give a detailed account of the data analysis. The enhancement over
the reference of neutral meson decays amounts to a factor of 2.31$\pm0.19
(stat.)\pm0.55 (syst.)\pm0.69 (decays)$ for semi-central collisions (28%
$\sigma/\sigma_{geo}$) when yields are integrated over $m>$ 200 MeV/$c^2$ in
invariant mass. The measured yield, its stronger-than-linear scaling with
$N_{ch}$, and the dominance of low pair $p_t$ strongly suggest an
interpretation as {\it thermal radiation} from pion annihilation in the
hadronic fireball. The shape of the excess centring at $m\approx$ 500
MeV/$c^2$, however, cannot be described without strong medium modifications of
the $\rho$ meson. The results are put into perspective by comparison to
predictions from Brown-Rho scaling governed by chiral symmetry restoration, and
from the spectral-function many-body treatment in which the approach to the
phase boundary is less explicit.


title: New Precision Determination of g_p and G_F: the MuXperiments at PSI

abstract:
  We discuss two precision experiments which will measure fundamental weak
interaction parameters: MuLAN's goal is the measurement of the positive muon
lifetime to 1 ppm, which will in turn determine the Fermi coupling constant G_F
to 0.5 ppm precision. MuCAP is the first experiment which will unambiguously
determine the induced pseudoscalar form factor of the proton, g_p. While
contradictory experimental results for g_p are under discussion, firm
theoretical calculations on the percent level within the framework of Chiral
Perturbation Theory are now challenging the measurements. We will describe our
experimental efforts and latest achievements.


title: The Thorium Molten Salt Reactor : Moving on from the MSBR

abstract:
  A re-evaluation of the Molten Salt Breeder Reactor concept has revealed
problems related to its safety and to the complexity of the reprocessing
considered. A reflection is carried out anew in view of finding innovative
solutions leading to the Thorium Molten Salt Reactor concept. Several main
constraints are established and serve as guides to parametric evaluations.
These then give an understanding of the influence of important core parameters
on the reactor's operation. The aim of this paper is to discuss this vast
research domain and to single out the Molten Salt Reactor configurations that
deserve further evaluation.


title: Q^2-Dependence of the Neutron Spin Structure Function g_2^n at Low Q^2

abstract:
  We present the first measurement of the Q^2-dependence of the neutron spin
structure function g_2^n at five kinematic points covering 0.57 (GeV/c)^2 <=
Q^2 <= 1.34 (GeV/c)^2 at x~0.2. Though the naive quark-parton model predicts
g_2=0, non-zero values for g_2 occur in more realistic models of the nucleon
which include quark-gluon correlations, finite quark masses or orbital angular
momentum. When scattering from a non-interacting quark, $g_2^n$ can be
predicted using next-to-leading order fits to world data for g_1^n. Deviations
from this prediction provide an opportunity to examine QCD dynamics in nucleon
structure. Our results show a positive deviation from this prediction at lower
Q^2, indicating that contributions such as quark-gluon interactions may be
important. Precision data obtained for g_1^n are consistent with
next-to-leading order fits to world data.


title:
Dominant g(9/2)^2 neutron configuration in the 4+1 state of 68Zn based
  on new g factor measurements

abstract:
  The $g$ factor of the $4_1^+$ state in $^{68}$Zn has been remeasured with
improved energy resolution of the detectors used. The value obtained is
consistent with the previous result of a negative $g$ factor thus confirming
the dominant $0g_{9/2}$ neutron nature of the $4_1^+$ state. In addition, the
accuracy of the $g$ factors of the $2_1^+$, $2_2^+$ and $3_1^-$ states has been
improved an d their lifetimes were well reproduced. New large-scale shell model
calculations based on a $^{56}$Ni core and an $0f_{5/2}1pg_{9/2}$ model space
yield a theoretical value, $g(4_1^+) = +0.008$. Although the calculated value
is small, it cannot fully explain the experimental value, $g(4_1^+) =
-0.37(17)$. The magnitude of the deduced B(E2) of the $4_1^+$ and $2_1^+$
transition is, however, rather well described. These results demonstrate again
the importance of $g$ factor measurements for nuclear structure determination s
due to their specific sensitivity to detailed proton and neutron components in
the nuclear wave functions.


title: Nuclear transparency from quasielastic 12C(e,e'p)

abstract:
  We studied the reaction 12C(e,e'p) in quasielastic kinematics at momentum
transfers between 0.6 and 1.8 (GeV/c)^2 covering the single-particle region.
  From this the nuclear transparency factors are extracted using two methods.
The results are compared to theoretical predictions obtained using a
generalization of Glauber theory described in this paper. Furthermore, the
momentum distribution in the region of the 1s-state up to momenta of 300 MeV/c
is obtained from the data and compared to the Correlated Basis Function theory
and the Independent-Particle Shell model.


title:
Comment on "Quantum Opacity, the RHIC HBT Puzzle, and the Chiral Phase
  Transition"

abstract:
  We are submitting a comment on the paper "Quantum Opacity, the RHIC HBT
Puzzle, and the Chiral Phase Transition" by J.G. Cramer, G.A. Miller, J.M.S. Wu
and J. Yoon, published in Phys. Rev. Lett. 94, 102302 (2005).


title:
Jet properties from $\pi^{\pm}$ - $h^{\pm}$ correlation in $p+p$ and
  $d$+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV

abstract:
  We review recent results on the charged pion - charged hadron correlation in
$p+p$ and $d$ + Au collisions as measured by the PHENIX Collaboration.
Properties of di-jet system, such as the jet shape, associated hadron yield per
trigger pion, and the underlying event are extracted statistically from the
$\pi^{\pm}-h^{\pm}$ correlation function in $\Delta\phi$ and $\Delta\eta$. For
jet triggered with high $p_T$ pions ($p_T>5$ GeV/c), no apparent differences in
the jet properties are seen between $p+p$ and $d$ + Au.


title:
Parity-Violating Electron Scattering from 4He and the Strange Electric
  Form Factor of the Nucleon

abstract:
  We have measured the parity-violating electroweak asymmetry in the elastic
scattering of polarized electrons from ^4He at an average scattering angle
<theta_lab> = 5.7 degrees and a four-momentum transfer Q^2 = 0.091 GeV^2. From
these data, for the first time, the strange electric form factor of the nucleon
G^s_E can be isolated. The measured asymmetry of A_PV = (6.72 +/- 0.84 (stat)
+/- 0.21 (syst) parts per million yields a value of G^s_E = -0.038 +/- 0.042
(stat) +/- 0.010 (syst), consistent with zero.


title: Constraints on the Nucleon Strange Form Factors at Q^2 ~ 0.1 GeV^2

abstract:
  We report the most precise measurement to date of a parity-violating
asymmetry in elastic electron-proton scattering. The measurement was carried
out with a beam energy of 3.03 GeV and a scattering angle <theta_lab>=6
degrees, with the result A_PV = -1.14 +/- 0.24 (stat) +/- 0.06 (syst) parts per
million. From this we extract, at Q^2 = 0.099 GeV^2, the strange form factor
combination G_E^s + 0.080 G_M^s = 0.030 +/- 0.025 (stat) +/- 0.006 (syst) +/-
0.012 (FF) where the first two errors are experimental and the last error is
due to the uncertainty in the neutron electromagnetic form factor. This result
significantly improves current knowledge of G_E^s and G_M^s at Q^2 ~0.1 GeV^2.
A consistent picture emerges when several measurements at about the same Q^2
value are combined: G_E^s is consistent with zero while G_M^s prefers positive
values though G_E^s=G_M^s=0 is compatible with the data at 95% C.L.


title: Cosmic-ray strangelets in the Earth's atmosphere

abstract:
  If strange quark matter is stable in small lumps, we expect to find such
lumps, called ``strangelets'', on Earth due to a steady flux in cosmic rays.
Following recent astrophysical models, we predict the strangelet flux at the
top of the atmosphere, and trace the strangelets' behavior in atmospheric
chemistry and circulation. We show that several strangelet species may have
large abundances in the atmosphere; that they should respond favorably to
laboratory-scale preconcentration techniques; and that they present promising
targets for mass spectroscopy experiments.


title: Photoproduction at Hadron Colliders

abstract:
  Photoproduction can be studied at hadron colliders by using the virtual
photons associated with the hadron beams. The LHC will reach photonucleon
energies 10 times higher than that available elsewhere. These reactions are
already being studied at RHIC. After introducing photoproduction at hadron
colliders, I will discuss recent results from STAR on $\rho^0$,
$\pi^+\pi^-\pi^+\pi^-$ and $e^+e^-$ production.


title: Evidence for an Excited Hyperon State in pp -> p K^+ Y^{0*}

abstract:
  Indications for the production of a neutral excited hyperon in the reaction
pp -> p K^+ Y^{0*} are observed in an experiment performed with the ANKE
spectrometer at COSY-J\"ulich at a beam momentum of 3.65 GeV/c. Two final
states were investigated simultaneously, viz. Y^{0*} -> pi^+X^- and pi^-X^+,
and consistent results were obtained in spite of the quite different
experimental conditions. The parameters of the hyperon state are M(Y^{0*})=
(1480 +/- 15) MeV/c^2 and Gamma(Y^{0*})= (60 +/- 15) MeV/c^2. The production
cross section is of the order of few hundred nanobarns. Since the isospin of
the Y^{0*} has not been determined here, it could either be an observation of
the Sigma(1480), a one-star resonance of the PDG tables, or alternatively a
Lambda hyperon. Relativistic quark models for the baryon spectrum do not
predict any excited hyperon in this mass range and so the Y^{0*} may be of
exotic nature.


title: Diffractive $\phi$-meson photoproduction on proton near threshold

abstract:
  Photoproduction of $\phi$-meson on protons was studied by means of linearly
polarized photons at forward angles in the low-energy region from threshold to
$E_{\gamma}$= 2.37 GeV. The differential cross sections at $t = -|t|_{min}$ do
not increase smoothly as $E_{\gamma}$ increases, but show a local maximum at
around 2.0 GeV. The angular distributions demonstrate that $\phi$-mesons are
photo-produced predominantly by helicity-conserving processes, and the local
maximum is not likely due to unnatural-parity processes.


title:
Survey of ground state neutron Spectroscopic Factors from Li to Cr
  isotopes

abstract:
  The ground state neutron spectroscopic factors for 80 nuclei ranging in Z
from 3 to 24 have been extracted by analyzing the past measurements of the
angular distributions from (d,p) and (p,d) reactions. We demonstrate an
approach that provides systematic and consistent values with minimum
assumptions. For the 61 nuclei that have been described by large-basis
shell-model calculations, most experimental spectroscopic factors are
reproduced to within 20%.


title:
Detectors for the Gamma-Ray Resonant Absorption (GRA) Method of
  Explosives Detection in Cargo: A Comparative Study

abstract:
  Gamma-Ray Resonant Absorption (GRA) is an automatic-decision radiographic
screening technique that combines high radiation penetration with very good
sensitivity and specificity to nitrogenous explosives. The method is
particularly well-suited to inspection of large, massive objects (since the
incident gamma-ray probe is at 9.17 MeV) such as aviation and marine
containers, heavy vehicles and railroad cars. Two kinds of gamma-ray detectors
have been employed to date in GRA systems: 1) Resonant-response nitrogen-rich
liquid scintillators and 2) BGO detectors. This paper analyses and compares the
response of these detector-types to the resonant radiation, in terms of
single-pixel figures of merit. The latter are sensitive not only to detector
response, but also to accelerator-beam quality, via the properties of the
nuclear reaction that produces the resonant gamma-rays. Generally, resonant
detectors give rise to much higher nitrogen-contrast sensitivity in the
radiographic image than their non-resonant detector counterparts and
furthermore, do not require proton beams of high energy-resolution. By
comparison, the non-resonant detectors have higher gamma-detection efficiency,
but their contrast sensitivity is very sensitive to the quality of the
accelerator beam. Implications of these detector/accelerator characteristics
for eventual GRA field systems are discussed.


title:
Dependence of the $^{12}$C($\vec{\gamma}$,pd) reaction on photon linear
  polarisation

abstract:
  The sensitivity of the $^{12}$C$(\vec{\gamma},pd)$ reaction to photon linear
polarisation has been determined at MAMI, giving the first measurement of the
reaction for a nucleus heavier than $^{3}$He. Photon asymmetries and cross
sections were measured for $E_{\gamma}$=170 to 350 MeV. For $E_{\gamma}$ below
the $\Delta$ resonance, reactions leaving the residual $^{9}$Be near its ground
state show a positive asymmetry of up to 0.3, similar to that observed for
$^{3}$He suggesting a similar reaction mechanism for the two nuclei.


title: Scaling properties of azimuthal anisotropy of mesons and baryons at RHIC

abstract:
  Detailed measurements of the azimuthal anisotropy (\v2) for identified
charged particles are reported as a function of transverse momentum ($p_T$) and
centrality for Au+Au collisions at \sqrtsNN = 200 GeV. The measurements
indicate clear evidence for eccentricity and particle flavor scaling over a
broad range of centralities and transverse rapidity $y_T$, indicating a
hydrodynamical origin of the fine structure of azimuthal anisotropy at RHIC.
The observed scaling supports the picture of a suddenly hadronizing
(recombining) fluid of quarks. An apparent breaking of flavor scaling at
relatively large values of $y_T$ points to an important change in the mechanism
for particle emission.


title:
Time resolution of Burle 85001 micro-channel plate photo-multipliers in
  comparison with Hamamatsu R2083

abstract:
  The CLAS detector will require improvements in its particle identification
system to take advantage of the higher energies provided by the Jefferson
Laboratory accelerator upgrade to 12 GeV. To this end, we have studied the
timing characteristics of the micro-channel plate photo-multiplier 85001 from
Burle, which can be operated in a high magnetic field environment.
  For reference and comparison, measurements were also made using the standard
PMT R2083 from Hamamatsu using two timing methods.
  The cosmic ray method, which utilizes three identical scintillating counters
2cmx3cmx50cm with PMs at the ends, yields 59.1(0.7)ps.
  The location method of particles from radiative source with known coordiantes
has been used to compare timing resolutions of R2083 and Burle-85001.This
``coordinate method'' requires only one counter instrumented with two PMs and
it yields 59.5(0.7)ps.
  For the micro-channel plate photomultiplier from Burle with an external
amplification of 10 to the signals, the coordinate method yields 130(4)ps.
  This method also makes it possible to estimate the number of primary
photo-electrons.


title:
Strange Quark Contributions to Parity-Violating Asymmetries in the
  Forward G0 Electron-Proton Scattering Experiment

abstract:
  We have measured parity-violating asymmetries in elastic electron-proton
scattering over the range of momentum transfers 0.12 < Q^2 < 1.0 GeV^2. These
asymmetries, arising from interference of the electromagnetic and neutral weak
interactions, are sensitive to strange quark contributions to the currents of
the proton. The measurements were made at JLab using a toroidal spectrometer to
detect the recoiling protons from a liquid hydrogen target. The results
indicate non-zero, Q^2 dependent, strange quark contributions and provide new
information beyond that obtained in previous experiments.


title: Forward Physics and BRAHMS results

abstract:
  We report here the BRAHMS measurements of particle production in d+Au and p+p
collisions at RHIC. The results presented here are compared to previous p+A
measurements at lower energies in fixed target mode. Some preliminary results
on abundances of identified particles at high rapidity are also presented.


title: Tomographic Studies of the sQGP

abstract:
  Azimuthal correlation functions are used to study jet- and di-jet properties
as a function of centrality in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$=200
GeV. Utilizing a novel technique to decompose the correlation function into a
(di-)jet and an underlying event, the jet-pair distribution is extracted and
compared to similar results for d+Au collisions obtained at the same collision
energy. A striking similarity is observed between the widths and associated
yields of the (di-)jet distributions for d+Au and peripheral Au+Au collisions.
By contrast, the distributions for mid-central Au+Au collisions indicate an
increase in the di-jet yield with centrality, and a very broad away-side jet
having a possible minimum at $\Delta\phi \approx \pi$. These features point to
significant medium induced modification to the away-side jet and are compatible
with recent predictions of jet-induced "conical flow".


title:
Formation of Light Isotopes by Protons and Deuterons of 3.65 GeV/nucleon
  on Separated Tin Isotopes

abstract:
  We measure cross sections for residual nuclide formation in the mass range 6
< A < 97 caused by bombardment with protons and deuterons of 3.65 GeV/nucleon
energy of enriched tin isotopes (112-Sn, 118-Sn, 120-Sn, 124-Sn). The
experimental data are compared with calculations by the codes FLUKA, LAHET,
CEM03, and LAQGSM03. Scaling behavior is observed for the whole mass region of
residual nuclei, showing a possible multifragmentation mechanism for the
formation of light products (6 < A < 31). Our analysis of the isoscaling
dependence also shows a possible contribution of multifragmentation to the
production of heavier nuclides, in the mass region 39 < A < 81.


title: Nuclear fusion in muonic deuterium-helium complex

abstract:
  Experimental study of the nuclear fusion reaction in charge-asymmetrical
d-mu-3He complex is presented. The 14.6 MeV protons were detected by three
pairs of Si(dE-E) telescopes placed around the cryogenic target filled with the
deuterium + helium-3 gas at 34 K. The 6.85 keV gamma rays emitted during the
de-excitation of d-mu-3He complex were detected by a germanium detector. The
measurements were performed at two target densities, 0.0585 and 0.169 (relative
to liquid hydrogen density) with an atomic concentration of 3He c=0.0469. The
values of the effective rate of nuclear fusion in d-mu-3He was obtained for the
first time, and the J=0 nuclear fusion rate in d-mu-3He was derived.


title:
Evidence of microscopic effects in fragment mass distribution in heavy
  ion induced fusion-fission reactions

abstract:
  Our measurements of variances ($\sigma_{m}^2$) in mass distributions of
fission fragments from fusion-fission reactions of light projectiles (C, O and
F) on deformed thorium targets exhibit a sharp anomalous increase with energy
near the Coulomb barrier, in contrast to the smooth variation of $\sigma_{m}^2$
for the spherical bismuth target. This departure from expectation based on a
statistical description is explained in terms of microscopic effects arising
from the orientational dependence in the case of deformed thorium targets.


title:
Photo-disintegration cross section measurements on $^{186}$W, $^{187}$Re
  and $^{188}$Os: Implications for the Re-Os cosmochronology

abstract:
  Cross sections of the $^{186}$W, $^{187}$Re, $^{188}$Os($\gamma,n$) reactions
were measured using quasi-monochromatic photon beams from laser Compton
scattering (LCS) with average energies from 7.3 to 10.9 MeV. The results are
compared with the predictions of Hauser-Feshbach statistical calculations using
four different sets of input parameters. In addition, the inverse neutron
capture cross sections were evaluated by constraining the model parameters,
especially the $E1$ strength function, on the basis of the experimental data.
The present experiment helps to further constrain the correction factor
$F_{\sigma}$ for the neutron capture on the 9.75 keV state in $^{187}$Os.
Implications of $F_{\sigma}$ to the Re-Os cosmochronology are discussed with a
focus on the uncertainty in the estimate of the age of the Galaxy.


title: First Results on 12Lambda-C production at DAPHNE

abstract:
  Lambda-hypernuclei are produced and studied, with the FINUDA spectrometer,
for the first time at an e+e- collider: DAPHNE, the Frascati phi-factory. The
slow negative kaons from phi(1020) decay are stopped in thin (0.2 g/cm^2)
nuclear targets, and Lambda-hypernuclei formation is detected by measuring the
momentum of the outgoing pi^-. A preliminary analysis on 12Lambda-C shows an
energy resolution of 1.29 MeV FWHM on the hypernuclear levels, the best
obtained so far with magnetic spectrometers at hadron facilities. Capture rates
for the ground state and the excited ones are reported, and compared with
previous experiments.


title:
Gamma-spectrometric uranium age-dating using intrinsic efficiency
  calibration

abstract:
  A non-destructive, gamma-spectrometric method for uranium age-dating is
presented which is applicable to material of any physical form and geometrical
shape. It relies on measuring the daughter/parent activity ratio 214Bi/234U by
low-background, high-resolution gamma-spectrometry using intrinsic efficiency
calibration. The method does not require the use of any reference materials nor
the use of an efficiency calibrated geometry.


title: An hybrid Tykhonov method for neutron spectrum unfolding

abstract:
  An hybrid iterative Tykhonov regularization approach with an accelerating
algorithm is considered. This method is illustrated by two neutron spectrum
unfoldings measured with a Bonner Sphere system.


title: Electromagnetic Form Factors of the Nucleon and Compton Scattering

abstract:
  We review the experimental and theoretical status of elastic electron
scattering and elastic low-energy photon scattering (with both real and virtual
photons) from the nucleon. As a consequence of new experimental facilities and
new theoretical insights, these subjects are advancing with unprecedented
precision. These reactions provide many important insights into the spatial
distributions and correlations of quarks in the nucleon.


title: Inclusive Pion Double Charge Exchange in 4He at Intermediate Energies

abstract:
  A systematic experimental study of inclusive pion double charge exchange in
4He has been undertaken. The reaction 4He(pi+,pi-)4p was observed at incident
energies 120, 150, 180, 240 and 270 MeV; the 4He(pi-,pi+)4n reaction was
observed at incident energies 180 and 240 MeV. At each incident energy, the
doubly differential cross section was measured at three to five outgoing pion
laboratory angles between 25 deg and 130 deg. At each angle, cross sections
were measured over the range of outgoing pion energies from 10 MeV up to the
kinematic limit for the reaction in which the final state consists of the
oppositely charged pion plus four free nucleons.
  The spectra of outgoing pions are strikingly different from those observed
for the inclusive double charge exchange reaction in heavier nuclei, but
resemble those observed in the (pi-,pi+) reaction in 3He. The forward-angle
spectra in the 3He and 4He reactions exhibit a prominent peak at high outgoing
pion energies. Interpretation of the peaks in 3He (4He) as a three-
(four-)nucleon resonance is ruled out by kinematic analysis. The results of a
calculation, wherein the double charge exchange reaction is assumed to proceed
as two sequential single charge exchange interactions, suggest that the
high-energy peak is naturally explained by this double scattering mechanism.
Non-static treatment of the pi-N interactions and the inclusion of nuclear
binding effects appear to be important in reproducing the shape of the energy
spectra at forward angles.


title: Symmetry energy of fragments produced in multifragmentation

abstract:
  Isospin properties of fragments measured in multifragmentation of 136Xe and
124Xe projectiles in mid-peripheral collisions with a lead target at 1 A GeV
were studied within the statistical approach describing the liquid-gas nuclear
phase transition. By analyzing the isoscaling phenomenon and the mean N-over-Z
ratio of the fragments with Z=10-13 we have concluded that the symmetry energy
of hot fragments produced in multifragment environment at subnuclear densities
at high temperatures decreases in comparison with cold nuclei.


title:
Modifications to Di-Jet Hadron Pair Correlations in Au+Au Collisions at
  sqrt(s_NN) = 200 GeV

abstract:
  Azimuthal correlations of high-pT charged hadron pairs from
(di-)jet-fragmentation are studied at mid-rapidity in Au+Au collisions at
vsNN=200 GeV. The distribution of jet-associated partner hadrons (1.0< pT <2.5
GeV/c) per trigger hadron (2.5< pT <4.0 GeV/c) is found to vary with collision
centrality, both in shape and in yield, indicating a significant effect of the
nuclear collision medium on the (di-)jet fragmentation process.


title: The NPDGamma Experiment at LANSCE

abstract:
  The NPDGamma collaboration has constructed and commissioned an apparatus to
determine the size of the pion-nucleon coupling constant in the parity non
conserving pion exchange weak potential for N-N interactions. This coupling
constant is directly proportional to the parity violating up-down asymmetry in
the angular distribution of gamma rays with respect to the neutron spin
direction in the capture of polarized cold neutrons on protons. The measurement
of the weak pNN coupling will provide a test for the effective theory,
describing the nucleon-nucleon interaction as mediated by the exchange of
mesons, and provide results against which to compare models describing QCD at
low energy. NPDGamma is located at the Los Alamos Neutron Science Center
(LANSCE) and utilizes the special features of cold spallation neutrons to make
it possible to measure very small gamma ray asymmetries. In this paper, we
present the motivation for the experiment and report on experimental setup as
well as the current status of the project and the results obtained during the
2004 commissioning run including parity violation asymmetry measurements on Al,
CCL4, In, Boron-Carbide, and Cu.


title:
Incomplete fusion versus breakup competition with weakly bound
  projectiles

abstract:
  The importance of the breakup channel in the vicinity of the Coulomb barrier
(1<Ec.m./Vb<2) is investigated for the medium weight 6Li+59Co system.
Three-body final-state analysis of light-particle coincident data was carried
out to disentangle, for the first time, the breakup contributions from other
competiting mechanisms. alpha-d angular correlations show incomplete fusion
components as significant as that from breakup process. Their strong coupling
to total fusion is discussed within a comparison with predictions of continuum
discretized coupled-channel calculations.


title:
Level densities and thermodynamical quantities of heated 93-98Mo
  isotopes

abstract:
  Level densities for 93-98Mo have been extracted using the (3He,alpha gamma)
and (3He,3He' gamma) reactions. From the level densities thermodynamical
quantities such as temperature and heat capacity can be deduced. Data have been
analyzed by utilizing both the microcanonical and the canonical ensemble.
Structures in the microcanonical temperature are consistent with the breaking
of nucleon Cooper pairs. The S-shape of the heat capacity curves found within
the canonical ensemble is interpreted as consistent with a pairing phase
transition with a critical temperature for the quenching of pairing
correlations at T_c ~ 0.7-1.0 MeV.


title:
Elastic scattering of low energy pions by nuclei and the in-medium
  isovector pi N amplitude

abstract:
  Measurements of elastic scattering of 21.5 MeV pi+ and pi- by Si, Ca, Ni and
Zr were made using a single arm magnetic spectrometer. Absolute calibration was
made by parallel measurements of Coulomb scattering of muons. Parameters of a
pion-nucleus optical potential were obtained from fits to all eight angular
distributions put together. The `anomalous' s-wave repulsion known from pionic
atoms is clearly observed and could be removed by introducing a
chiral-motivated density dependence of the isovector scattering amplitude,
which also greatly improved the fits to the data. The empirical energy
dependence of the isoscalar amplitude also improves the fits to the data but,
contrary to what is found with pionic atoms, on its own is incapable of
removing the anomaly.


title:
Excitation Functions of Product Nuclei from 40-2600 MeV
  Proton-Irradiated 206,207,208,natPb and 209Bi

abstract:
  The work is aimed at experimental determination of the independent and
cumulative yields of radioactive residual nuclei produced in
intermediate-energy proton-irradiated thin targets made of highly isotopic
enriched and natural lead (206,207,208,natPb) and 209Bi. 5972 radioactive
product nuclide yields have been measured in 55 thin targets induced by 0.04,
0.07, 0.10, 0.15, 0.25, 0.6, 0.8, 1.2, 1.4, 1.6, and 2.6 GeV protons extracted
from the ITEP U-10 proton synchrotron. The measured data have been compared
with data obtained at other laboratories as well as with theoretical
simulations by seven codes. We found that the predictive power of the tested
codes is different but is satisfactory for most of the nuclides in the
spallation region, though none of the codes agree well with the data in the
whole mass region of product nuclides and all should be improved further.


title:
Accuracy of traditional Legendre estimators of quadrupole ratios for the
  N to Delta transition

abstract:
  We evaluate the accuracy of traditional estimators often used to extract N to
Delta quadrupole ratios from cross section angular distributions for pion
electroproduction. We find that neither M1+ dominance nor sp truncation is
sufficiently accurate for this purpose. Truncation errors are especially large
for EMR, for which it is also essential to perform Rosenbluth separation. The
accuracy of similar truncated Legendre analyses for E0+, S0+, and especially
M1- is even worse.


title: Precision Measurement of the 29Si, 33S, and 36Cl Binding Energies

abstract:
  The binding energies of 29Si, 33S, and 36Cl have been measured with a
relative uncertainty $< 0.59 \times 10^{-6}$ using a flat-crystal spectrometer.
The unique features of these measurements are 1) nearly perfect crystals whose
lattice spacing is known in meters, 2) a highly precise angle scale that is
derived from first principles, and 3) a gamma-ray measurement facility that is
coupled to a high flux reactor with near-core source capability. The binding
energy is obtained by measuring all gamma-rays in a cascade scheme connecting
the capture and ground states. The measurements require the extension of
precision flat-crystal diffraction techniques to the 5 to 6 MeV energy region,
a significant precision measurement challenge. The binding energies determined
from these gamma-ray measurements are consistent with recent highly accurate
atomic mass measurements within a relative uncertainty of $4.3 \times 10^{-7}$.
The gamma-ray measurement uncertainties are the dominant contributors to the
uncertainty of this consistency test. The measured gamma-ray energies are in
agreement with earlier precision gamma-ray measurements.


title:
Central-to-peripheral nuclear modification factors in Pb-Pb collisions
  at sqrt{s_NN} = 17.3 GeV

abstract:
  We present central-to-peripheral nuclear modification factors, R_CP, for the
p_T distributions of K^0_S, Lambda, Anti-Lambda, and negatively charged
particles, measured at central rapidity in Pb-Pb collisions at top SPS energy.
The data cover the 55% most central fraction of the inelastic cross section.
The K^0_S and Lambda R_CP(p_T) are similar in shape to those measured at
sqrt{s_NN} = 200 GeV at RHIC, though they are larger in absolute value. We have
compared our K^0_S R_CP data to a theoretical calculation. The prediction
overestimates the data at p_T \approx 3-4 GeV/c, unless sizeable parton energy
loss is included in the calculation.


title:
Measurements of Nucleon-Induced Fission Cross-Sections of Separated
  Tungsten Isotopes and Natural Tungsten in the 50-200 MeV Energy Region

abstract:
  Neutron- and proton-induced fission cross-sections of separated isotopes of
tungsten (182W, 183W, 184W, and 186W) and natural tungsten relative to 209Bi
have been measured in the incident nucleon energy region 50-200 MeV using
fission chambers based on thin-film breakdown counters (TFBC) at
quasi-monoenergetic neutrons from the 7Li(p,n) reaction and at the proton beams
of The Svedberg Laboratory (TSL), Uppsala University (Uppsala, Sweden). The
preliminary experimental data are presented in comparison with the recent data
for nuclei in the lead-bismuth region, as well as with predictions by the
CEM03.01 event generator.


title:
Measurement of the LT-asymmetry in \pi^0 electroproduction at the energy
  of the \Delta (1232) resonance

abstract:
  The reaction p(e,e'p)pi^0 has been studied at Q^2=0.2 (GeV/c)^2 in the region
of W=1232 MeV. From measurements left and right of q, cross section asymmetries
\rho_LT have been obtained in forward kinematics \rho_LT(\theta_\pi^0=20deg) =
(-11.68 +/- 2.36_stat +/- 2.36_sys)$ and backward kinematics
\rho_LT(\theta_\pi^0=160deg) =(12.18 +/- 0.27_stat +/- 0.82_sys). Multipole
ratios \Re(S_1+^* M_1+)/|M_1+|^2 and \Re(S_0+^* M_1+)/|M_1+|^2 were determined
in the framework of the MAID2003 model. The results are in agreement with older
data. The unusally strong negative \Re(S_0+^* M_1+)/|M_1+|^2 required to bring
also the result of Kalleicher et al. in accordance with the rest of the data is
almost excluded.


title:
Compound nuclear decay and the liquid to vapor phase transition: a
  physical picture

abstract:
  Analyses of multifragmentation in terms of the Fisher droplet model (FDM) and
the associated construction of a nuclear phase diagram bring forth the problem
of the actual existence of the nuclear vapor phase and the meaning of its
associated pressure. We present here a physical picture of fragment production
from excited nuclei that solves this problem and establishes the relationship
between the FDM and the standard compound nucleus decay rate for rare particles
emitted in first-chance decay. The compound thermal emission picture is
formally equivalent to a FDM-like equilibrium description and avoids the
problem of the vapor while also explaining the observation of Boltzmann-like
distribution of emission times. In this picture a simple Fermi gas thermometric
relation is naturally justified and verified in the fragment yields and time
scales. Low energy compound nucleus fragment yields scale according to the FDM
and lead to an estimate of the infinite symmetric nuclear matter critical
temperature between 18 and 27 MeV depending on the choice of the surface energy
coefficient of nuclear matter.


title: Spin as an additional tool for QGP investigations

abstract:
  The nearest two years on experiment STAR the upgrade is planned, which will
make it possible to identify particles up to momentum $\sim$ 3 GeV/c. This will
open possibility to carry out new and more detailed researches of properties of
a nuclear matter formed in nucleus-nucleus collisions at RHIC. In this work we
offer to carry out of the polarization studies, which can give important
additional information about the process of forming the new state of nuclear
matter, and also about properties of the formed state. A unique probe of
information about all stages of formation and evolution of nuclear matter are
dileptons, due to their electromagnetic interaction with the nuclear matter. In
this work we pay main attention to the examination of polarization
characteristics of dileptons.


title: Fluctuations and NA49

abstract:
  A brief history of the study of fluctuations in high energy nuclear
collisions at the CERN SPS performed by NA49 is presented. The ideas and the
corresponding experimental data on fluctuations are discussed from the point of
view of their sensitivity to the onset of deconfinement.


title: Comment on "Symmetry energy and the isospin dependent equation of state"

abstract:
  In a recent paper, Shetty et al [Phys. Rev. C 70, 011601R (2004)] reported
that the experimental isoscaling parameters aexp from several reactions favor
the Gogny-AS effective nucleon-nucleon interaction over Gogny interaction. This
conclusion is reached by comparing data to Antisymmetrized Molecular Dynamics
(AMD) predictions for collisions of calcium isotopes. The specific simulations
produce excited fragments at t=300 fm/c before they decay. Sequential decay
calculations of the excited fragments suggest that the isoscaling parameter
apri from the AMD calculations could be reduced by as much as 50%. We also
explore the linear equation used to relate other reactions to the AMD
calculations for Ca+Ca collisions. The uncertainty in the relation is larger
than the differences between the predicted apri when using Gogny and Gogny-AS
interactions.


title:
Absence of M2 Retardation in $^{35}Cl$: Evidence for Stronger
  Isospin-Mixing Effects in A=35 Mirror Nuclei

abstract:
  The lifetime of the 3163 keV, 7/2$^-$ isomeric state in $^{35}Cl$ that decays
by a stretched M2 transition to the $3/2^+$ ground state, has been re-measured
using the Doppler Shift Attenuation Method, by gating on the 1185 keV
transition which directly feeds this state. This eliminates the uncertainties
in the measurement arising from the direct feedings from the continuum. A mean
life of 0.6$^{+0.5}_{-0.2}$ ps has been obtained from the present work. This is
considerably smaller than the adopted value 45.3(6) ps. Implication of this
major reduction in the lifetime has been pointed out.


title:
From the ISR to RHIC--measurements of hard-scattering and jets using
  inclusive single particle production and 2-particle correlations

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 desribed 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 at RHIC energies,
are reviewed, as an introduction to present RHIC measurements.


title: Latest Results on $g_1$ and $g_2$ at high $x$

abstract:
  Recent progress from Jefferson Lab has significantly improved our
understanding of the nucleon spin structure in the high-$x$ region. Results of
a precision measurement of the neutron spin asymmetry, $A_1^n$, in the high-$x$
(valence quark) region are discussed. The up and down quark spin distributions
in the nucleon were extracted. $A_2^n$ was also measured. The results were
used, in combination with existing data, to extract the second moment, $d_2^n$.
Preliminary results on $A_1^p$ and $A_1^d$ in the high-$x$ region have also
become available. Finally, the results of a precision measurement of the $g_2$
structure function to study higher twist effects will be presented.


title:
Jefferson Lab's results on the Q^2-evolution of moments of spin
  structure functions

abstract:
  We present the recent JLab measurements on moments of spin structure
functions at intermediate and low Q^2. The Bjorken sum and Burkhardt-Cottingham
sum on the neutron are presented. The later appears to hold. Higher moments
(generalized spin polarizabilities and d_2^n) are shown and compared to chiral
perturbation theory and lattice QCD respectively.


title: Diffraction Dissociation - 50 Years Later

abstract:
  The field of Diffraction Dissociation, which is the subject of this workshop,
began 50 years ago with the analysis of deuteron stripping in low energy
collisions with nuclei. We return to the subject in a modern context- deuteron
dissociation in $\sqrt{s_{NN}}= 200$ GeV d-Au collisions recorded during the
2003 RHIC run in the PHENIX experiment. At RHIC energy, d$\to$n+p proceeds
predominantly (90%) through Electromagnetic Dissociation and the remaining
fraction via the hadronic shadowing described by Glauber. Since the
dissociation cross section has a small theoretical error we adopt this process
to normalize other cross sections measured in RHIC.


title:
Long range absorption in the scattering of 6He on 208Pb and 197Au at 27
  MeV

abstract:
  Quasi-elastic scattering of 6He at E_lab=27 MeV from 197Au has been measured
in the angular range of 6-72 degrees in the laboratory system employing LEDA
and LAMP detection systems. These data, along with previously analysed data of
6He + 208Pb at the same energy, are analyzed using Optical Model calculations.
The role of Coulomb dipole polarizability has been investigated. Large
imaginary diffuseness parameters are required to fit the data. This result is
an evidence for long range absorption mechanisms in 6He induced reactions.


title:
Reaction and proton-removal cross sections of $^6$Li, $^7$Be, $^{10}$B,
  $^{9,10,11}$C, $^{12$N, $^{13,15}$O and $^{17}$Ne on Si at 15 to 53
  MeV/nucleon

abstract:
  Excitation functions for total reaction cross sections, $\sigma_R$, were
measured for the light, mainly proton-rich nuclei $^6$Li, $^7$Be, $^{10}$B,
$^{9,10,11}$C, $^{12}$N, $^{13,15}$O, and $^{17}$Ne incident on a Si telescope
at energies between 15 and 53 MeV/nucleon. The telescope served as target,
energy degrader and detector. Proton-removal cross sections, $\sigma_{2p}$ for
$^{17}$Ne and $\sigma_p$ for most of the other projectiles, were also measured.
The strong absorption model reproduces the $A$-dependence of $\sigma_R$, but
not the detailed structure. Glauber multiple scattering theory and the JLM
folding model provided improved descriptions of the measured $\sigma_R$ values.
$rms$ radii, extracted from the measured $\sigma_R$ using the optical limit of
Glauber theory, are in good agreement with those obtained from high energy
data. One-proton removal reactions are described using an extended Glauber
model, incorporating second order noneikonal corrections, realistic single
particle densities, and spectroscopic factors from shell model calculations.


title: Optical calibration hardware for the Sudbury Neutrino Observatory

abstract:
  The optical properties of the Sudbury Neutrino Observatory (SNO) heavy water
Cherenkov neutrino detector are measured in situ using a light diffusing sphere
("laserball"). This diffuser is connected to a pulsed nitrogen/dye laser via
specially developed underwater optical fibre umbilical cables. The umbilical
cables are designed to have a small bending radius, and can be easily adapted
for a variety of calibration sources in SNO. The laserball is remotely
manipulated to many positions in the D2O and H2O volumes, where data at six
different wavelengths are acquired. These data are analysed to determine the
absorption and scattering of light in the heavy water and light water, and the
angular dependence of the response of the detector's photomultiplier tubes.
This paper gives details of the physical properties, construction, and optical
characteristics of the laserball and its associated hardware.


title:
Extraction of kinetic freeze-out properties and effect of resonance
  decays

abstract:
  We present STAR results from identified particle spectra measured in
$\sqrt{s_{NN}}$ = 62.4 GeV Au-Au collisions. Particle production and system
dynamics are compared to results at $\sqrt{s_{NN}}$ = 200 GeV. We extract
kinetic and chemical freeze-out parameters using blast wave model
parameterization and statistical model. We discuss the effect of resonance
decays on the extracted kinetic freeze-out parameters.


title:
Thermal photon-IMF anticorrelation: a signal of prompt
  multifragmentation?

abstract:
  The mechanism responsible for IMF emission in central $^{58}$Ni + $^{197}$Au
reactions at 30 and 45 MeV/nucleon is investigated by looking at the thermal
bremsstrahlung photon production. An IMF - photon anticorrelation signal is
observed, for central collisions, at 45 MeV/nucleon with IMF velocity around
the center of mass value. This observation is proposed as an evidence for
prompt nuclear fragmentation events.


title: Light cluster production in E/A = 61 MeV 36Ar + 112,124Sn reactions

abstract:
  Experimental kinetic energy distributions and small-angle two-particle
correlation functions involving deuterons and tritons are compared for 36Ar+
112,124Sn collisions at E/A = 61 MeV (i.e. for systems similar in size, but
with different isospin content). A larger triton yield is observed from the
more neutron-rich system, as predicted by IBUU simulations, while the emission
times of the light clusters are found to be the same for the two Sn-target
systems. For both systems, the time sequence tau_{d} < tau_{p} < tau_{t}, is
deduced for charged particles emitted from the intermediate velocity source.


title:
First Measurement of A_N at sqrt(s)=200 GeV in Polarized Proton-Proton
  Elastic Scattering at RHIC

abstract:
  We report on the first measurement of the single spin analyzing power (A_N)
at sqrt(s)=200GeV, obtained by the pp2pp experiment using polarized proton
beams at the Relativistic Heavy Ion Collider (RHIC). Data points were measured
in the four momentum transfer t range 0.01 < |t| < 0.03 (GeV/c)^2. Our result,
averaged over the whole t-interval is about one standard deviation above the
calculation, which uses interference between electromagnetic spin-flip
amplitude and hadronic non-flip amplitude, the source of A_N. The difference
could be explained by an additional contribution of a hadronic spin-flip
amplitude to A_N.


title: Upper Limit of D0 Production in Central Pb-Pb Collisions at 158A GeV

abstract:
  Results are presented from a search for the decays D0 -> Kmin piplus and
D0bar -> Kplus pimin in a sample of 3.8x10^6 central Pb-Pb events collected
with a beam energy of 158A GeV by NA49 at the CERN SPS. No signal is observed.
An upper limit on D0 production is derived and compared to predictions from
several models.


title:
J/psi Production and Nuclear Effects for d+Au and p+p Collisions at
  sqrt(s_NN) = 200 GeV

abstract:
  J/psi production in d+Au and p+p collisions at sqrt(s_NN) = 200 GeV has been
measured by the PHENIX experiment at rapidities -2.2 < y < +2.4. The cross
sections and nuclear dependence of J/\psi production versus rapidity,
transverse momentum, and centrality are obtained and compared to lower energy
p+A results and to theoretical models. The observed nuclear dependence in d+Au
collisions is found to be modest, suggesting that the absorption in the final
state is weak and the shadowing of the gluon distributions is small and
consistent with Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-based
parameterizations that fit deep-inelastic scattering and Drell-Yan data at
lower energies.


title:
A method to disentangle single- and multi-meson production in missing
  mass spectra from quasi-free pn --> pn X reactions

abstract:
  The separation of contributions from multi- and single-meson production in
the missing mass spectrum of the quasi-free pn --> pnX reaction constitutes
a~challenging task when the reaction is studied close to threshold. This is
especially true if the resolution of the mass determination is comparable with
the excess energy and if the investigated signal appears close to the
kinematical limit. In this article we outline a method which permits the
extraction of the signal originating from the creation of a single meson
without the necessity of conducting model-dependent simulations. For the pd -->
pnXp(spectator) reactions, the method allows one to combine events
corresponding to multi-meson production at various excess energies with respect
to the pn --> pn meson process, and hence leads to an increase of the
statistics needed for the determination of the shape of the multi-meson
background.
  As an example of the application of the method, we demonstrate that the
evaluation of the data from the pd --> pnXp(sp) process according to the
described technique enables one to extract a signal of the pn --> pn eta
reaction whose shape is consistent with expectations, supporting the
correctness and usefulness of the method introduced.


title:
Systematics of heavy-ion fusion hindrance at extreme sub-barrier
  energies

abstract:
  The recent discovery of hindrance in heavy-ion induced fusion reactions at
extreme sub-barrier energies represents a challenge for theoretical models.
Previously, it has been shown that in medium-heavy systems, the onset of fusion
hindrance depends strongly on the "stiffness" of the nuclei in the entrance
channel. In this work, we explore its dependence on the total mass and the
$Q$-value of the fusing systems and find that the fusion hindrance depends in a
systematic way on the entrance channel properties over a wide range of systems.


title: Lambda AntiLambda Production as a Benchmark Channel for PANDA

abstract:
  The PANDA experiment which is part of the future FAIR facility at Darmstadt
will investigate reactions of antiprotons with hydrogen and nuclear targets.
One of the benchmark channel for the simulation and the design of the detector
is the Lambda AntiLambda channel, which has been extensively investigated by
the PS185 collaboration. This paper will report on first results on GEANT4
simulations including the PANDA detector geometry which have been performed to
study the detector acceptance, resolution and background suppression as well as
the reconstruction polarization observables.


title:
Level Density and Radiative Strength functions of Dipole
  gamma-Transitions in Ba-139 and Dy-165

abstract:
  Level density and radiative strength functions which allow precise
reproduction of the two-step cascade intensity, gamma width of compound state
and cascade population of levels up to excitation energy of about 3.5 MeV were
determined using experimental data on the (n,2gamma) reaction. Level density in
these nuclei (like in other even-odd nuclei studied earlier) in wide excitation
energy interval is considerably less than that predicted by Fermi-gas model.
Enhancement of the radiative strength functions, caused by strong correlations
between cascade gamma-decay parameters, most probably, relates with the change
in ratio between the quasi-particle and collective components of the wave
functions of the cascade intermediate levels in the region of most strong
change in their density.


title:
New Measurements and Quantitative Analysis of Electron Backscattering in
  the Energy Range of Neutron Beta-Decay

abstract:
  We report on the first detailed measurements of electron backscattering from
plastic scintillator targets, extending our previous work on beryllium and
silicon targets. The scintillator experiment posed several additional
experimental challenges associated with charging of the scintillator target,
and those challenges are addressed in detail. In addition, we quantitatively
compare the energy and angular distributions of this data, and our previous
data, with electron transport simulations based on the Geant4 and Penelope
Monte Carlo simulation codes. The Penelope simulation is found globally to give
a superior description of the data. Such information is crucial for a broad
array of weak-interaction physics experiments, where electron backscattering
can give rise to the dominant detector-related systematic uncertainty.


title:
Experimental Investigation of Weak Non-Mesonic Decay of
  10Be(Lambda)Hypernuclei at CEBAF

abstract:
  Hypernuclei are convenient laboratory to study the baryon-baryon weak
interaction and associated effective Hamiltonian. The strangeness changing
process, in which a Lambda hyperon converts to a neutron with a release up to
176 MeV, provides a clear signal for a conversion of an s-quark to a d-quark.
We propose to perform a non-mesonic weak decay study of 10Be(Lambda)hypernuclei
using the (e,eK) reaction. These investigations will fully utilize the unique
parameters of the CEBAF CW electron beam and RF system and are enabled by (1)
the use of new detector for alpha particles based on the recently developed RF
timing technique with picosecond resolution and (2) the small angle and large
acceptance kaon spectrometer-HKS in Hall C.


title:
Level Density and Radiative Strength Functions of Dipole
  gamma-Transitions in 163Dy

abstract:
  Using our early experimental data on the cascade gamma-transitions from the
162Dy(n,2gamma) reaction, we determined dependence of the cascade intensity on
the energy of their intermediate levels, and then - level density and radiatibe
strength functions which allow precise reproduction of the experimental
two-step cascade intensities and total gamma-width. Level density in this
nucleus (like in other earlier studied even-odd nuclei) in the interval 1 to 3
MeV is considerably less than that predicted by Fermi-gas model. Enhancement of
the radiative strength functions, caused by strong correlations of parameters,
most probably, relates with the change in ratio between the quasi-particle and
collective component of the wave functions of the cascade intermediate levels
in the region of most strong change in their density.


title:
Probable Level Densities and Radiative Strength Functions of Dipole
  gamma-Transitions in 57Fe Compound Nucleus

abstract:
  From the published results of experimental research of 56Fe(n,2gamma)
reaction carried out in Budapest, the values of the most probable densities of
cascade intermediate levels with 1/2, 3/2 spin and radiative strength functions
of cascade E1 and M1 transitions in 57Fe compound nucleus have been determined.
These results correspond to analogous data for other nuclei studied by us and
contradict to predictions of conventional models.


title:
Level Density and Radiative Strength Functions in Light Nuclei: 60Co as
  an Example of the Method for Determination and their Reliability Verification

abstract:
  Up to now, level density for some nuclei (close to construction materials of
nuclear reactors with respect to their mass) was determined only from the
evaporation nucleon spectra. All its energy dependences obtained are smooth
enough functions and are usually reproduced in the frameworks of generalized
model of the superfluid nucleus with the use of the phase transition energy of
infinite and homogeneous macrosystem. The same data obtained from
59Co(n,2gamma) reaction demonstrate the presence of two clearly expressed
step-like structures. This fact corresponds to the analogous data for other
nuclei studied in the same way. Level density and radiative strength functions
derived from two-step cascade intensities provide more precise reproduction of
the total gamma-spectrum than conventional nuclear models.


title:
Study of heavy ion induced fission fragment angular and mass
  distribution at near and sub-coulomb barrier energies

abstract:
  The thesis presents investigations on the angular and mass distribution of
fission fragments on heavy ion induced fission reactions. The present
investigations address current issues in heavy ion induced fission reactions
like finding the optimum entrance channel for the synthesis of super heavy
elements (SHE). A double arm time of flight spectrometer over long flight path
was used to measure the precise masses of complementary fission fragments.
Necessary large area position sensitive gas detectors, the method of
experiments and data analysis were developed. The first string of measurements
were for a spherical target (209^Bi) with oxygen and fluorine projectiles. The
next series of experiments were done using a deformed target (232^Th) with
fluorine, oxygen and carbon projectiles.


title: Multiparticle angular correlations: a probe for the sQGP at RHIC

abstract:
  A novel decomposition technique is used to extract the centrality dependence
of di-jet properties and yields from azimuthal correlation functions obtained
in Au+Au collisions at $\sqrt{s_{_{\rm NN}}}$=200 GeV. The width of the
near-side jet shows very little dependence on centrality. In contrast, the
away-side jet indicates substantial broadening as well as hints for for a local
minimum at $\Delta \phi=\pi$ for central and mid-central events. The yield of
jet-pairs (per trigger particle) slowly increases with centrality for both the
near- and away-side jets. These observed features are compatible with several
recent theoretical predictions of possible modifications of di-jet
fragmentation by a strongly interacting medium. Several new experimental
approaches, including the study of flavor permutation and higher order
multi-particle correlations, that might help to distinguish between different
theoretical scenarios are discussed.


title:
Exclusive Measurements of $pd\to ^3He \pi\pi$ : the $ABC$ Effect
  Revisited

abstract:
  Exclusive measurements of the reactions $pd\to$ $^3He \pi^+ \pi^-$ and
$pd\to$ $^3He \pi^0\pi^0$ have been carried out at $T_p=0.895$ GeV at the
CELSIUS storage ring using the WASA detector. The $\pi^+\pi^-$ channel
evidences a pronounced enhancement at low invariant $\pi\pi$ masses - as
anticipated from previous inclusive measurements of the ABC effect. This
enhancement is seen to be even much larger in the isoscalar $\pi^0\pi^0$
channel. The differential distributions prove this enhancement to be of
scalar-isoscalar nature. $\Delta\Delta$ calculations give a good description of
the data, if a boundstate condition is imposed for the intermediate
$\Delta\Delta$ system.


title:
Systematic study of three-nucleon force effects in the cross section of
  the deuteron-proton breakup at 130 MeV

abstract:
  High precision cross-section data of the deuteron-proton breakup reaction at
130 MeV are presented for 72 kinematically complete configurations. The data
cover a large region of the available phase space, divided into a systematic
grid of kinematical variables. They are compared with theoretical predictions,
in which the full dynamics of the three-nucleon (3N) system is obtained in
three different ways: realistic nucleon-nucleon (NN) potentials are combined
with model 3N forces (3NF's) or with an effective 3NF resulting from explicit
treatment of the Delta-isobar excitation. Alternatively, the chiral
perturbation theory approach is used at the next-to-next-to-leading order with
all relevant NN and 3N contributions taken into account. The generated dynamics
is then applied to calculate cross-section values by rigorous solution of the
3N Faddeev equations. The comparison of the calculated cross sections with the
experimental data shows a clear prefernce for the predictions in which the
3NF's are included. The majority of the experimental data points is well
reproduced by the theoretical predictions. The remaining discrepancies are
investigated by inspecting cross sections integrated over certain kinematical
variables. The procedure of global comparisons leads to establishing
regularities in disagreements between the experimental data and the
theoretically predicted values of the cross sections. They indicate
deficiencies still present in the assumed models of the 3N system dynamics.


title: Rapidity Dependence of High-pt Suppresion

abstract:
  The rapidity dependence of the nuclear modification factor in d-Au
collaisions at sqrt(s) = 200 GeV at RHIC is discussed.


title:
Low-energy cross section of the 7Be(p,g)8B solar fusion reaction from
  Coulomb dissociation of 8B

abstract:
  Final results from an exclusive measurement of the Coulomb breakup of 8B into
7Be+p at 254 A MeV are reported. Energy-differential Coulomb-breakup cross
sections are analyzed using a potential model of 8B and first-order
perturbation theory. The deduced astrophysical S_17 factors are in good
agreement with the most recent direct 7Be(p,gamma)8B measurements and follow
closely the energy dependence predicted by the cluster-model description of 8B
by Descouvemont. We extract a zero-energy S_17 factor of 20.6 +- 0.8 (stat) +-
1.2 (syst) eV b.


title: Single Spin Asymmetries in the BRAHMS Experiment

abstract:
  The BRAHMS experiment at RHIC has the capability to measure the transverse
spin asymmetries in polarized pp induced pion production at RHIC. The first
results from the short run-4 show a signaificant asymmetry for pi-plus and
pi-minus at moderate xF. The trend of the data is in agreement with lower
energy data while the absolute value are surprisingly large.


title: Experimental study of 113Cd beta decay using CdZnTe detectors

abstract:
  A search for the 4-fold forbidden beta decay of \iso{Cd}{113} has been
performed with CdZnTe semiconductors. With 0.86 kg $\cdot$ days of statistics a
half-life for the decay of $T_{1/2} = (8.2 \pm 0.2 (stat.) ^{+0.2}_{-1.0}
(sys.)) \cdot 10^{15}$yrs has been obtained. This is in good agreement with
published values. A comparison of the spectral shape with the one given on the
Table of Isotopes Web-page shows a severe deviation.


title:
Precision neutron interferometric measurements of the n-p, n-d, and
  n-3He zero-energy coherent neutron scattering amplitudes

abstract:
  We have performed high precision measurements of the zero-energy neutron
scattering amplitudes of gas phase molecular hydrogen, deuterium, and $^{3}$He
using neutron interferometry. We find $b_{\mathit{np}}=(-3.7384 \pm 0.0020)$
fm\cite{Schoen03}, $b_{\mathit{nd}}=(6.6649 \pm 0.0040)$
fm\cite{Black03,Schoen03}, and $b_{n^{3}\textrm{He}} = (5.8572 \pm 0.0072)$
fm\cite{Huffman04}. When combined with the previous world data, properly
corrected for small multiple scattering, radiative corrections, and local field
effects from the theory of neutron optics and combined by the prescriptions of
the Particle Data Group, the zero-energy scattering amplitudes are:
$b_{\mathit{np}}=(-3.7389 \pm 0.0010)$ fm, $b_{\mathit{nd}}=(6.6683 \pm
0.0030)$ fm, and $b_{n^{3}\textrm{He}} = (5.853 \pm .007)$ fm. The precision of
these measurements is now high enough to severely constrain NN few-body models.
The n-d and n-$^{3}$He coherent neutron scattering amplitudes are both now in
disagreement with the best current theories. The new values can be used as
input for precision calculations of few body processes. This precision data is
sensitive to small effects such as nuclear three-body forces, charge-symmetry
breaking in the strong interaction, and residual electromagnetic effects not
yet fully included in current models.


title: Consequences of energy conservation in relativistic heavy-ion collisions

abstract:
  Complete characterization of particle production and emission in relativistic
heavy-ion collisions is in general not feasible experimentally. This work
demonstrates, however, that the availability of essentially complete
pseudorapidity distributions for charged particles allows for a reliable
estimate of the average transverse momenta and energy of emitted particles by
requiring energy conservation in the process. The results of such an analysis
for Au+Au collisions at sqrt{s_{NN}}= 130 and 200 GeV are compared with
measurements of mean-p_T and mean-E_T in regions where such measurements are
available. The mean-p_T dependence on pseudorapidity for Au+Au collisions at
130 and 200 GeV is given for different collision centralities.


title:
Measurement of identified pi^0 and inclusive photon v_2 and implication
  to the direct photon production in sqrt(s_NN) = 200 GeV Au+Au collisions

abstract:
  The azimuthal distribution of identified pi^0 and inclusive photons has been
measured in sqrt{s_{NN}} = 200 GeV Au+Au collisions with the PHENIX experiment
at the Relativistic Heavy Ion Collider (RHIC). The second harmonic parameter
(v_2) was measured to describe the observed anisotropy of the azimuthal
distribution. The measured inclusive photon v_2 is consistent with the value
expected for the photons from hadron decay and is also consistent with the lack
of direct photon signal over the measured p_T range 1-6 GeV/c. An attempt is
made to extract v_2 of direct photons.


title:
Experimental proposal for accurate determination of the phase relaxation
  time and testing a formation of thermalized non-equilibrated matter in highly
  excited quantum many-body systems

abstract:
  We estimate how accurate the phase relaxation time of quantum many-body
systems can be determined from data on forward peaking of evaporating protons
from a compound nucleus. The angular range and accuracy of the data needed for
a reliable determination of the phase relaxation time are evaluated. The
general method is applied to analyze the inelastic scattering of 18 MeV protons
from Pt for which previously measured double differential cross sections for
two angles in the evaporating domain of the spectra show a strong forward
peaking. A new experiment for an improved determination of the phase relaxation
time is proposed. The experiment is also highly desirable for an accurate test
of a formation of thermalized non-equilibrated matter in quantum many-body
systems.


title: Distributions of Charged Hadrons Associated with High pT Particles

abstract:
  Recent results from STAR on angular correlations of charged hadrons
associated with high transverse momentum particles are presented. Emphasis is
put on the correlations of soft associated hadrons, which provide rich
information on the properties of the bulk medium created in RHIC collisions.
The results are discussed in the context of three pertinent questions regarding
QGP formation: sufficient energy density, parton thermalization, and
deconfinement.


title: Higher-twist analysis of moments of spin structure function

abstract:
  Available analyses on moments of the spin structure function g_1 use
different methods and are barely consistent with each other. We present a
higher twist analysis of Gamma_1^p using a method consistent with the studies
of Gamma_1^n and Gamma_1^(p-n) already published. The twist-4 coefficient f_2
is extracted. One result is that the higher twist coefficients seem to
alternate signs: the relatively larger twist-6 contribution is partly
suppressed by the twist-4 and twist-8 contributions. The size of twist-6 can be
due to the elastic contribution to the moments.


title:
Determination of $\gamma^{direct}/\pi^0$ using photon-charge particle
  correlation measurement in high energy heavy ion and pp collisions

abstract:
  A method has been proposed for the determination of $\gamma$ to $\pi^0$ ratio
in high energy pp and nucleus-nucleus collisions at large transverse momentum
($p_T$). In photon measuring device, it is proposed that shower shape analysis
is made to select only cases with wide showers.
  These candidates come mostly from $\pi^0$. Correlation is measured between
those photon candidates as trigger particles and associated charged particles
above selected $p_T$.
  The ratio of yields of near and far angle correlation peaks for $\pi^0$
events is compared with correlation peaks from other set of events where
trigger particle contains photons for direct-photon jets alongwith $\pi^0$.
  The comparative study in reduction of yield of near angle peak is used to
extract photon fraction.


title:
Hadron production in ultra-relativistic nuclear collisions and the QCD
  phase boundary

abstract:
  We update briefly our understanding of hadron production in relativistic
nucleus-nucleus collisions in terms of statistical models with emphasis on the
relation of the data to the QCD phase boundary and on a puzzle in the beam
energy dependence.


title: Experimental Summary, ICPAQGP05 Conference

abstract:
  This paper gives highlights of the experimental results shown at this
conference.


title:
Measurement of 2- and 3-Nucleon Short Range Correlation Probabilities in
  Nuclei

abstract:
  The ratios of inclusive electron scattering cross sections of He4, C12 and
Fe56 to He3 have been measured at 1 < x_B < 3. At Q^2 > 1.4 GeV^2, the ratios
exhibit two separate plateaus, at 1.5 < x_B < 2 and at x_B > 2.25. This pattern
is predicted by models that include 2- and 3-nucleon short-range correlations
(SRC). Relative to A=3, the per-nucleon probabilities of 3-nucleon SRC are 2.3,
3.2, and 4.6 times larger for A=4, 12 and 56. This is the first measurement of
3-nucleon SRC probabilities in nuclei. \\


title:
Light Nuclides Produced in the Proton-Induced Spallation of 238U at 1
  GeV

abstract:
  The production of light and intermediate-mass nuclides formed in the reaction
1H+238U at 1 GeV was measured at the Fragment Separator (FRS) at GSI,
Darmstadt. The experiment was performed in inverse kinematics, shooting a 1 A
GeV 238U beam on a thin liquid-hydrogen target. 254 isotopes of all elements in
the range from Z=7 to Z=37 were unambiguously identified, and the velocity
distributions of the produced nuclides were determined with high precision. The
results show that the nuclides are produced in a very asymmetric binary decay
of heavy nuclei originating from the spallation of uranium. All the features of
the produced nuclides merge with the characteristics of the fission products as
their mass increases.


title: The pi -> pi pi process in nuclei and the restoration of chiral symmetry

abstract:
  The results of an extensive campaign of measurements of the pi -> pi pi
process in the nucleon and nuclei at intermediate energies are presented. The
measurements were motivated by the study of strong pi pi correlations in
nuclei. The analysis relies on the composite ratio C_{pi pi}^A, which accounts
for the clear effect of the nuclear medium on the (pi pi) system. The
comparison of the C_{pi pi}^A distributions for the (pi pi)_{I=J=0} and (pi
pi)_{I=0,J=2} systems to the model predictions indicates that the C_{pi pi}^A
behavior in proximity of the 2m_pi threshold is explainable through the partial
restoration of chiral symmetry in nuclei.


title: Scattering of $^{7}$Be and $^{8}$B and the astrophysical S$_{17}$ factor

abstract:
  Measurements of scattering of $^{7}$Be at 87 MeV on a melamine (C$_{3}$N$
_{6}$H$_{6}$) target and of $^{8}$B at 95 MeV on C were performed. For $^{7}$Be
the angular range was extended over previous measurements and monitoring of the
intensity of the radioactive beam was improved. The measurements allowed us to
check and improve the optical model potentials used in the incoming and
outgoing channels for the analysis of existing data on the proton transfer
reaction $^{14}$N($^{7}$Be,$^{8}$B)$^{13}$C. The resultslead to an updated
determination of the asymptotic normalization coefficient for the virtual decay
$^{8}$B $\to$ $^{7}$Be + $p$. We find a slightly larger value,
$C_{tot}^{2}(^{8}B)=0.466\pm 0.047$ fm$^{-1}$, for the melamine target. This
implies an astrophysical factor, $S_{17}(0)=18.0\pm 1.8$ eV$\cdot$b, for the
solar neutrino generating reaction $^{7}$Be($p$,$\gamma $)$^{8}$B.


title: Basic characterization of highly enriched uranium by gamma spectrometry

abstract:
  Gamma-spectrometric methods suitable for the characterization of highly
enriched uranium samples encountered in illicit trafficking of nuclear
materials are presented. In particular, procedures for determining the 234U,
235U, 238U, 232U and 236U contents and the age of highly enriched uranium are
described. Consequently, the total uranium content and isotopic composition can
be calculated. For determining the 238U and 232U contents a low background
chamber was used. In addition, age dating of uranium was also performed using
low-background spectrometry.


title:
Breakup of loosely bound nuclei as indirect method in nuclear
  astrophysics: 8B, 9C, 23Al

abstract:
  We discuss the use of one-nucleon breakup reactions of loosely bound nuclei
at intermediate energies as an indirect method in nuclear astrophysics. These
are peripheral processes, therefore we can extract asymptotic normalization
coefficients (ANC) from which reaction rates of astrophysical interest can be
inferred. To show the usefulness of the method, three different cases are
discussed. In the first, existing experimental data for the breakup of 8B at
energies from 30 to 1000 MeV/u and of 9C at 285 MeV/u on light through heavy
targets are analyzed. Glauber model calculations in the eikonal approximation
and in the optical limit using different effective interactions give
consistent, though slightly different results, showing the limits of the
precision of the method. The results lead to the astrophysical factor
S_17(0)=18.7+/-1.9 eVb for the key reaction for solar neutrino production
7Be(p,\gamma)8B. It is consistent with the values from other indirect methods
and most direct measurements, but one. Breakup reactions can be measured with
radioactive beams as weak as a few particles per second, and therefore can be
used for cases where no direct measurements or other indirect methods for
nuclear astrophysics can be applied. We discuss a proposed use of the breakup
of the proton drip line nucleus 23Al to obtain spectroscopic information and
the stellar reaction rate for 22Mg(p,\gamma)23Al.


title:
Constraints on the time-scale of nuclear breakup from thermal
  hard-photon emission

abstract:
  Measured hard photon multiplicities from second-chance nucleon-nucleon
collisions are used in combination with a kinetic thermal model, to estimate
the break-up times of excited nuclear systems produced in nucleus-nucleus
reactions at intermediate energies. The obtained nuclear break-up time for the
$^{129}${Xe} + $^{nat}${Sn} reaction at 50{\it A} MeV is $\Delta$$\tau$
$\approx$ 100 -- 300 fm/$c$ for all reaction centralities. The lifetime of the
radiating sources produced in seven other different heavy-ion reactions studied
by the TAPS experiment are consistent with $\Delta$$\tau$ $\approx$ 100 fm/$c$,
such relatively long thermal photon emission times do not support the
interpretation of nuclear breakup as due to a fast spinodal process for the
heavy nuclear systems studied.


title:
Multifragmentation of very heavy nuclear systems (III): fragment
  velocity correlations and event topology at freeze-out

abstract:
  Kinetic energy spectra and fragment velocity correlations, simulated by means
of stochastic mean-field calculations, are successfully confronted with
experimental data for single multifragmenting sources prepared at the same
excitation energy per nucleon in 32 AMeV 129Xe+natSn and 36 AMeV 155Gd+natU
central collisions. Relying thus on simulations, average freeze-out times of
200-240 fm/c are estimated The corresponding spatial distributions of fragments
are more compact for the lighter system (~3-4V\_0 vs ~8V\_0).


title:
\pi N and \eta p deexcitation channels of the N^* and \Delta baryonic
  resonances between 1470 and 1680 MeV

abstract:
  Two reactions, pp->ppX and pp->p\pi^+X, are used to study the 1.47<M<1.68 GeV
baryonic mass range. Three different final states are considered in the
invariant masses: N^* or \Delta^+, p\pi^0, and p\eta. The last two channels are
defined by software cuts applied to the missing mass of the first reaction.
Several narrow structures are extracted with widths \sigma(\Gamma) varying
between 3 and 9 MeV. Some structures are observed in one channel but not in
others. Such nonobservation may be due either to the spectrometer momenta
limits or to the physics (e.g. no such disintegration channel is allowed from
the narrow state considered).
  We tentatively conclude that the broad Particle Data Group (PDG) baryonic
resonances N(1520)D13, N(1535)S11, Delta(1600)P33, and N(1675)D15 are
collective states built from several narrow and weakly excited resonances, each
having a (much) smaller width than the one reported by PDG.