title:
Calculation of the ultracold neutron upscattering loss probability in
  fluid walled storage bottles using experimental measurements of the
  thermomechanical properties of Fomblin

abstract:
  We present experimental measurements of the properties of a liquid "Fomblin"
surface obtained by the quasielastic scattering of laser light. The properties
include the surface tension and viscosity as a function of temperature. The
results are compared to the measurements of the bulk fluid properties.
  We then calculate the upscattering rate of ultracold neutrons (UCN) from
thermally excited surface capillary waves on the liquid surface and compare the
results to experimental measurements of the UCN lifetime in Fomblin
fluid-walled UCN storage bottles, and show that the excess loss rate for UCN
energies near the Fomblin potential can be explained. The rapid temperature
dependence of the Fomblin storage lifetime is explained by our analysis.


title: Level density and $\gamma$-ray strength in $^{27,28}$Si

abstract:
  A method to extract simultaneously level densities and $\gamma$-ray
transmission coefficients has for the first time been tested on light nuclei
utilizing the $^{28}$Si($^3$He,$\alpha\gamma)^{27}$Si and
$^{28}$Si($^3$He,$^3$He'$\gamma)^{28}$Si reactions. The extracted level
densities for $^{27}$Si and $^{28}$Si are consistent with the level densities
obtained by counting known levels in the respective nuclei. The extracted
$\gamma$-ray strength in $^{28}$Si agrees well with the known $\gamma$-decay
properties of this nucleus. Typical nuclear temperatures are found to be $T\sim
2.4$ MeV at around 7 MeV excitation energy. The entropy gap between nuclei with
mass number $A$ and $A\pm 1$ is measured to be $\delta S\sim 1.0 k_B$, which
indicates an energy spacing between single-particle orbitals comparable with
typical nuclear temperatures.


title: Net Charge Fluctuations in Au + Au Interactions at sqrt(s_NN) = 130 GeV

abstract:
  Data from Au + Au interactions at sqrt(s_NN) = 130 GeV, obtained with the
PHENIX detector at RHIC, are used to investigate local net charge fluctuations
among particles produced near mid-rapidity. According to recent suggestions,
such fluctuations may carry information from the Quark Gluon Plasma. This
analysis shows that the fluctuations are dominated by a stochastic distribution
of particles, but are also sensitive to other effects, like global charge
conservation and resonance decays.


title:
Event-by-event fluctuations in Mean $p_T$ and Mean $e_T$ in sqrt(s_NN) =
  130 GeV Au+Au Collisions

abstract:
  Distributions of event-by-event fluctuations of the mean transverse momentum
and mean transverse energy near mid-rapidity have been measured in Au+Au
collisions at sqrt(s_NN) = 130 GeV at RHIC. By comparing the distributions to
what is expected for statistically independent particle emission, the magnitude
of non-statistical fluctuations in mean transverse momentum is determined to be
consistent with zero. Also, no significant non-random fluctuations in mean
transverse energy are observed. By constructing a fluctuation model with two
event classes that preserve the mean and variance of the semi-inclusive p_T or
e_T spectra, we exclude a region of fluctuations in sqrt(s_NN) = 130 GeV Au+Au
collisions.


title:
Mid-rapidity $\Lambda $ and $\bar{\Lambda}$ Production in Au+Au
  Collisions at $\sqrt{s_{_{NN}}}=130$ GeV

abstract:
  We report the first measurement of strange ($\Lambda$) and anti-strange
($\bar{\Lambda}$) baryon production from $\sqrt{s_{_{NN}}}=130$ GeV Au+Au
collisions at the Relativistic Heavy Ion Collider (RHIC). Rapidity density and
transverse mass distributions at mid-rapidity are presented as a function of
centrality. The yield of $\Lambda$ and $\bar{\Lambda}$ hyperons is found to be
approximately proportional to the number of negative hadrons. The production of
$\bar{\Lambda}$ hyperons relative to negative hadrons increases very rapidly
with transverse momentum. The magnitude of the increase cannot be described by
existing hadronic string fragmentation models.


title:
Multifragmentation in central collisions at intermediate energies: a
  fast process?

abstract:
  The kinematical characteristics of fragments and light particles observed in
central highly fragmented nuclear collisions at intermediate energies are
compared with the results of a model assuming that the initial momentum
distribution of the nucleons inside the two partners of the reaction has no
time to relax before the disassembly of the system. The rather good agreement
between the results of the model and the experimental data suggests that
multifragmentation is a fast process with a strong memory of the entrance
channel.


title:
Evidence for High-Momentum Enhancement in the Exclusive 3He(e,e'p)
  Reaction Below the Quasi-Elastic Peak

abstract:
  New, high-precision measurements of the 3He(e,e'p) reaction using the A1
collaboration spectrometers at the Mainz microtron MAMI are presented. These
were performed in parallel kinematics at energy transfers below the
quasi-elastic peak, and at a central momentum transfer of 685 MeV/c. Cross
sections and distorted momentum distributions were extracted and compared to
theoretical predictions and existing data. The longitudinal and transverse
behavior of the cross section was also studied. Sizable enhancements of the
cross sections for missing momenta larger than 100 MeV/c as compared to Plane
Wave Impulse Approximation were observed in both the two- and three-body
breakup channels.


title:
K*(892)0 Production in Relativistic Heavy Ion Collisions at sqrt(s_NN) =
  130 GeV

abstract:
  Preliminary results on the K*(892)0 -> pi + K production using the
mixed-event technique are presented. The measurements are performed at
mid-rapidity by the STAR detector in sqrt(s_NN) = 130 GeV Au-Au collisions at
RHIC. The K*0 to negative hadron, kaon and phi ratios are obtained and compared
to the measurements in e+e-, pp and pbarp at various energies.


title:
System, centrality, and transverse mass dependence of two-pion
  correlation radii in heavy ion collisions at 11.6 and 14.6 A-GeV

abstract:
  Two-pion correlation functions are analyzed at mid-rapidity for three systems
(14.6 A-GeV Si+Al, Si+Au, and 11.6 A-GeV Au+Au), seven distinct centrality
conditions, and different kT bins in the range 0.1--0.5 GeV/c. Source reference
frames are determined from fits to the Yano-Koonin source parameterization.
Bertsch-Pratt radius parameters are shown to scale linearly with both number of
projectile and total participants as obtained from a Glauber model calculation.
A finite emission duration that increases linearly with system/centrality is
also reported. The mT dependence of the Bertsch-Pratt radii is measured for the
central Si+Au and Au+Au systems. The system/centrality dependence is
investigated separately for both high and low mT regions.


title:
Meson production on complex nuclei by pi^- with the Crystal Ball
  detector

abstract:
  We report on preliminary results for the production of neutral mesons by 750
MeV/$c$ $\pi^-$ on complex nuclear targets (C, Al, Cu) and hydrogen. Our
simultaneous measurement of $\pi^0$, $2\pi^0$, and $\eta$ final states allows
an investigation of the nuclear final-state-interaction effects. The data show
that nuclear absorption is mainly responsible for an observed change in the
shape of the $2\pi^0$ invariant mass spectra. Our preliminary result for the
$\sigma \to \gamma \gamma$ branching ratio is BR$(\sigma \to \gamma \gamma) <
3.6\times 10^{-3} \times \phi$ at 90% C.L. on a carbon target, where $\phi$ is
the fraction of $2\pi^0$ produced via the $\sigma$ intermediate state.


title: Future Measurements at RHIC

abstract:
  I review the present status of measurements at RHIC and suggest possible
upgrades which will be necessary to answer some of the most critical questions
in Relativistic Heavy Ion Physics.


title:
Enhanced Production of Neutron-Rich Rare Isotopes in the Reaction of 25
  MeV/nucleon Kr-86 on Ni-64

abstract:
  The cross sections and velocity distributions of projectile-like fragments
from the reaction of 25 MeV/nucleon 86Kr + 64Ni have been measured using the
MARS recoil separator at Texas A&M, with special emphasis on the neutron rich
isotopes. Proton-removal and neutron pick-up isotopes have been observed with
large cross sections. A model of deep-inelastic transfer (DIT) for the primary
interaction stage and the statistical evaporation code GEMINI for the
deexcitation stage have been used to describe the properties of the product
distributions. The results have also been compared with the EPAX
parametrization of high-energy fragmentation yields. The experimental data show
an enhancement in the production of neutron-rich isotopes close to the
projectile, relative to the predictions of DIT/GEMINI and the expectations of
EPAX. We attribute this enhancement mainly to the effect of the extended
neutron distribution (neutron ``skin'') of the 64Ni target in peripheral
interactions of 86Kr with 64Ni. The large cross sections of such reactions near
the Fermi energy, involving peripheral nucleon exchange, suggest that, not only
the N/Z of the projectile and the target, but also the N/Z distribution at the
nuclear surface may properly be exploited in the production of neutron-rich
rare isotopes. This synthesis approach may offer a fruitful pathway to
extremely neutron-rich nuclei, towards the neutron-drip line.


title:
Flow Measurements via Two-particle Azimuthal Correlations in Au + Au
  Collisions at sqrt(s_NN) = 130 GeV

abstract:
  Two particle azimuthal correlation functions are presented for charged
hadrons produced in Au + Au collisions at RHIC sqrt(s_NN) = 130 GeV. The
measurements permit determination of elliptic flow without event-by-event
estimation of the reaction plane. The extracted elliptic flow values v_2 show
significant sensitivity to both the collision centrality and the transverse
momenta of emitted hadrons, suggesting rapid thermalization and relatively
strong velocity fields. When scaled by the eccentricity of the collision zone,
epsilon, the scaled elliptic flow shows little or no dependence on centrality
for charged hadrons with relatively low p_T. A breakdown of this epsilon
scaling is observed for charged hadrons with p_T > 1.0 GeV/c for the most
central collisions.


title: An alternative search for the electron capture of Te-123

abstract:
  A search for the electron capture of Te-123 has been performed using CdZnTe
detectors. After a measuring time of 195 h no signal could be found resulting
in a lower half-life limt of $T_{1/2} > 3.2 \cdot 10^{16}$ yrs (95 % CL) for
this process. This clearly discriminates between existing experimental results
which differ by six orders of magnitude and our data are in strong favour of
the result with longer half-lifes.


title:
Measurement of the lambda and lambda^bar particles in Au+Au Collisions
  at sqrt(s_NN)=130 GeV

abstract:
  We present results on the measurement of lambda and lambda^bar production in
Au+Au collisions at sqrt(s_NN)=130 GeV with the PHENIX detector at RHIC. The
transverse momentum spectra were measured for minimum bias and for the 5% most
central events. The lambda^bar/lambda ratios are constant as a function of p_T
and the number of participants. The measured net lambda density is
significantly larger than predicted by models based on hadronic strings (e.g.
HIJING) but in approximate agreement with models which include the gluon
junction mechanism.


title:
Direct Evidence for Neutrino Flavor Transformation from Neutral-Current
  Interactions in the Sudbury Neutrino Observatory

abstract:
  Observations of neutral current neutrino interactions on deuterium in the
Sudbury Neutrino Observatory are reported. Using the neutral current, elastic
scattering, and charged current reactions and assuming the standard 8B shape,
the electron-neutrino component of the 8B solar flux is 1.76
+/-0.05(stat.)+/-0.09(syst.) x10^6/(cm^2 s), for a kinetic energy threshold of
5 MeV. The non-electron neutrino component is
3.41+/-0.45(stat.)+0.48,-0.45(syst.) x10^6/(cm^2 s), 5.3 standard deviations
greater than zero, providing strong evidence for solar electron neutrino flavor
transformation. The total flux measured with the NC reaction is 5.09
+0.44,-0.43(stat.)+0.46,-0.43(syst.)x10^6/(cm^2 s), consistent with solar
models.


title:
Measurement of Day and Night Neutrino Energy Spectra at SNO and
  Constraints on Neutrino Mixing Parameters

abstract:
  The Sudbury Neutrino Observatory (SNO) has measured day and night solar
neutrino energy spectra and rates. For charged current events, assuming an
undistorted $^8$B spectrum, the night minus day rate is $14.0% \pm 6.3%
^{+1.5}_{-1.4}%$ of the average rate. If the total flux of active neutrinos is
additionally constrained to have no asymmetry, the $\nu_e$ asymmetry is found
to be $7.0% \pm 4.9% ^{+1.3}_{-1.2}%$. A global solar neutrino analysis in
terms of matter-enhanced oscillations of two active flavors strongly favors the
Large Mixing Angle (LMA) solution.


title: Ratios of Elastic Scattering of Pions from 3H and 3He

abstract:
  We have measured the elastic-scattering ratios of normalized yields for
charged pions from 3H and 3He in the backward hemisphere. At 180 MeV, we
completed the angular distribution begun with our earlier measurements, adding
six data points in the angular range of 119 deg to 169 deg in the pi-nucleus
center of mass. We also measured an excitation function with data points at
142, 180, 220, and 256 MeV incident pion energy at the largest achievable angle
for each energy between 160 deg and 170 deg in the pi-nucleus center of mass.
This excitation function corresponds to the energies of our forward-hemisphere
studies. The data, taken as a whole, show an apparent role reversal of the two
charge-symmetric ratios r1 and r2 in the backward hemisphere. Also, for data >
100 deg we observe a strong dependence on the four-momentum transfer squared
(-t) for all of the ratios regardless of pion energy or scattering angle, and
we find that the superratio R data match very well with calculations based on
the forward-hemisphere data that predicts the value of the difference between
the even-nucleon radii of 3H and 3He. Comparisons are also made with recent
calculations incorporating different wave functions and double scattering
models.


title: Methods for the Study of Particle Production Fluctuations

abstract:
  We discuss various measures of net charge (conserved quantities) fluctuations
proposed for the identification of critical phenomena in heavy ion collisions.
We show the dynamical component of fluctuations of the net charge can be
expressed simply in terms of integrals of two- and single-particle densities.
We discuss the dependence of the fluctuation observables on detector
acceptance, detection efficiency and colliding system size and collision
centrality. Finally, we present a toy model of particle production including
charge conservation and resonance production to gauge the effects of such
resonances and finite acceptance on the net charge fluctuations.


title: Relativistic Heavy-Ion Physics: Experimental Overview

abstract:
  The field of relativistic heavy-ion physics is reviewed with emphasis on new
results and highlights from the first run of the Relativistic Heavy-Ion
Collider at BNL and the 15 year research programme at the SPS at CERN and the
AGS at BNL.


title: Observation of double radiative capture on pionic hydrogen

abstract:
  We report the first observation of double radiative capture on pionic
hydrogen. The experiment was conducted at the TRIUMF cyclotron using the RMC
spectrometer, and detected $\gamma$--ray coincidences following $\pi^-$ stops
in liquid hydrogen. We found the branching ratio for double radiative capture
to be $(3.05 \pm 0.27(stat.) \pm 0.31(syst.)) \times 10^{-5}$. The measured
branching ratio and angle-energy distributions support the theoretical
prediction of a dominant contribution from the $\pi \pi \to \gamma \gamma$
annihilation mechanism.


title:
Compton Scattering from the Deuteron and Extracted Neutron
  Polarizabilities

abstract:
  Differential cross sections for Compton scattering from the deuteron were
measured at MAX-lab for incident photon energies of 55 MeV and 66 MeV at
nominal laboratory angles of $45^\circ$, $125^\circ$, and $135^\circ$. Tagged
photons were scattered from liquid deuterium and detected in three NaI
spectrometers. By comparing the data with theoretical calculations in the
framework of a one-boson-exchange potential model, the sum and difference of
the isospin-averaged nucleon polarizabilities, $\alpha_N + \beta_N = 17.4 \pm
3.7$ and $\alpha_N - \beta_N = 6.4 \pm 2.4$ (in units of $10^{-4}$ fm$^3$),
have been determined. By combining the latter with the global-averaged value
for $\alpha_p - \beta_p$ and using the predictions of the Baldin sum rule for
the sum of the nucleon polarizabilities, we have obtained values for the
neutron electric and magnetic polarizabilities of $\alpha_n= 8.8 \pm
2.4$(total) $\pm 3.0$(model) and $\beta_n = 6.5 \mp 2.4$(total) $\mp
3.0$(model), respectively.


title: Limiting temperatures and the Equation of State of Nuclear Matter

abstract:
  From experimental observations of limiting temperatures in heavy ion
collisions we derive Tc, the critical temperature of infinite nuclear matter.
The critical temperature is 16.6 +- 0.86 MeV. Theoretical model correlations
between Tc, the compressibility modulus, K the effective mass, $m^*$ and the
saturation density, rho_s, are exploited to derive the quantity
(K/m^*)**1/2*rho_s^{-1/3}$. This quantity together with calculations employing
Skyrme and Gogny interactions indicates a nuclear matter incompressibility in
moderately excited nuclei that is in excellent agreement with the value
determined from Giant Monopole Resonance data. This technique of extraction of
K may prove particularly useful in investigations of very neutron rich systems
using radioactive beams.


title: Muon capture on Chlorine-35

abstract:
  We report measurements of $\gamma$--ray spectra from muon capture on
$^{35}$Cl. For the allowed Gamow--Teller transitions to the $^{35}$S$(2939,
3/2^+)$ state and the $^{35}$S$(3421, 5/2^+)$ state we obtained their capture
rates, hyperfine dependences and $\gamma$--$\nu$ correlation coefficients. The
capture rates and hyperfine dependences were compared to shell model
calculations using the complete 1s--0d space and the universal SD interaction.
With $g_p / g_a = 6.7$ and $g_a = -1.00$ (or $g_a = -1.26$) we found agreement
of the model and the data at the 1--2 $\sigma$ level. However, we caution that
the transitions are sensitive to $\ell = 2$ forbidden matrix elements.


title: Particle Correlations with the PHENIX Experiment

abstract:
  Results of identical pion correlations from the first year of data collection
with the PHENIX detector at RHIC (\snn=130GeV) are presented. PHENIX has good
particle identification using an electromagnetic calorimeter for timing,
leading to identified pions from .2 to 1 GeV/c. This extends the range of
previously measured correlation radii at this energy to $<k_T >$=633MeV/c. The
beam energy dependence of the HBT radii are studied in depth and no significant
dependence of the transverse radii is present. The longitudinal correlation
length has a moderate energy dependence. Furthermore, theoretical predictions
of $\Ro/\Rs$ severely underpredict the measured ratio, which is consistent with
unity for all $k_T$. The implications of these results are considered.


title:
Energy Dependence of Pion and Kaon Production in Central Pb+Pb
  Collisions

abstract:
  Measurements of charged pion and kaon production in central Pb+Pb collisions
at 40, 80 and 158 AGeV are presented. These are compared with data at lower and
higher energies as well as with results from p+p interactions. The mean pion
multiplicity per wounded nucleon increases approximately linearly with s_NN^1/4
with a change of slope starting in the region 15-40 AGeV. The change from pion
suppression with respect to p+p interactions, as observed at low collision
energies, to pion enhancement at high energies occurs at about 40 AGeV. A
non-monotonic energy dependence of the ratio of K^+ to pi^+ yields is observed,
with a maximum close to 40 AGeV and an indication of a nearly constant value at
higher energies.The measured dependences may be related to an increase of the
entropy production and a decrease of the strangeness to entropy ratio in
central Pb+Pb collisions in the low SPS energy range, which is consistent with
the hypothesis that a transient state of deconfined matter is created above
these energies. Other interpretations of the data are also discussed.


title:
Critical behaviors in central and peripheral collisions: a comparative
  analysis

abstract:
  Quasi-projectile events from peripheral 35 A.MeV Au+ Au collisions are
compared to central Au + C, Au + Cu and Au + Au events in the same range of
excitation energy in terms of critical partitions and critical exponents. All
the different data sets coherently point to a value E*c=4.5 A.MeV for the
apparent critical excitation energy. The critical exponents tau, sigma are
compatible with the observation of a liquid-gas phase transition for these
systems.


title: Cnstructing the phase diagram of finite neutral nuclear matter

abstract:
  The fragment yields from the multifragmentation of gold, lanthanum and
krypton nuclei obtained by the EOS Collaboration are examined in terms of
Fisher's droplet formalism modifed to account for Coulomb energy. The critical
exponents sigma and tau and the surface energy coefficient c0 are obtained.
Estimates are made of the pressure-temperature and temperature-density
coexistence curves of finite neutral nuclear matter as well as the location of
the critical point.


title: Caloric Curves and Nuclear Expansion

abstract:
  Nuclear caloric curves have been analyzed using an expanding Fermi gas
hypothesis to extract average nuclear densities. In this approach the observed
flattening of the caloric curves reflects progressively increasing expansion
with increasing excitation energy. This expansion results in a corresponding
decrease in the density and Fermi energy of the excited system. For nuclei of
medium to heavy mass apparent densities ~ 0.4 rho_0 are reached at the higher
excitation energies.


title: First Results from the Sudbury Neutrino Observatory

abstract:
  The Sudbury Neutrino Observatory (SNO) is a water imaging Cherenkov detector.
Utilising a 1 kilotonne ultra-pure D2O target, it is the first experiment to
have equal sensitivity to all flavours of active neutrinos. This allows a
solar-model independent test of the neutrino oscillation hypothesis to be made.
Solar neutrinos from the decay of 8B have been detected at SNO by the
charged-current (CC) interaction on the deuteron and by the elastic scattering
(ES) of electrons. While the CC interaction is sensitive exclusively to
electron neutrinos, the ES interaction has a small sensitivity to muon and tau
neutrinos. In this paper, the recent solar neutrino results from the SNO
experiment are presented. The measured ES interaction rate is found to be
consistent with the high precision ES measurement from the Super-Kamiokande
experiment. The electron neutrino flux deduced from the CC interaction rate in
SNO differs from the Super-Kamiokande ES measurement by 3.3 sigma. This is
evidence of an active neutrino component, in addition to electron neutrinos, in
the solar neutrino flux. These results also allow the first experimental
determination of the active 8B neutrino flux from the Sun, and this is found to
be in good agreement with solar model predictions


title:
Determination of the electromagnetic character of soft dipole modes
  solely based on quasicontinuous gamma spectroscopy

abstract:
  We show that the combined analysis of the quasicontinuous gamma spectra from
the (He-3,alpha) and the (n-thermal,2gamma) reactions gives the possibility to
measure the electromagnetic character of soft dipole resonances. Two-step
gamma-cascade spectra have been calculated, using level densities and radiative
strength functions from the (He-3,alpha gamma) reaction. The calculations show
that the intensity of the two-step cascades depends on the electromagnetic
character of the soft dipole resonance under study. The difference reaches
40-100% which can be measured experimentally.


title: Integration and Conventional Systems at STAR

abstract:
  At the beginning of the design and construction of the STAR Detector, the
collaboration assigned a team of physicists and engineers the responsibility of
coordinating the construction of the detector. This group managed the general
space assignments for each sub-system and coordinated the assembly and planning
for the detector. Furthermore, as this group was the only STAR group with the
responsibility of looking at the system as a whole, the collaboration assigned
it several tasks that spanned the different sub-detectors. These items included
grounding, rack layout, cable distribution, electrical, power and water, and
safety systems. This paper describes these systems and their performance.


title:
In-medium modifications of the $\pi\pi$ interaction in photon-induced
  reactions

abstract:
  Differential cross sections of the reactions $(\gamma,\pi^\circ\pi^\circ)$
and $(\gamma,\pi^\circ\pi^++\pi^\circ\pi^-)$ have been measured for several
nuclei ($^1$H,$^{12}$C, and $^{\rm nat}$Pb) at an incident-photon energy of
$E_{\gamma}$=400-460 MeV at the tagged-photon facility at MAMI-B using the TAPS
spectrometer. A significant nuclear-mass dependence of the $\pi\pi$
invariant-mass distribution is found in the $\pi^\circ\pi^\circ$ channel. This
dependence is not observed in the $\pi^\circ\pi^{+/-}$ channel and is
consistent with an in-medium modification of the $\pi\pi$ interaction in the
$I$=$J$=0 channel. The data are compared to $\pi$-induced measurements and to
calculations within a chiral-unitary approach.


title: Dynamics and thermodynamics of phase transition in hot nuclei

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


title:
Optimization of the design of OMNIS, the observatory of multiflavor
  neutrinos from supernovae

abstract:
  A Monte Carlo code has been developed to simulate the operation of the
planned detectors in OMNIS, a supernova neutrino observatory. OMNIS will detect
neutrinos originating from a core collapse supernova by the detection of
spalled neutrons from Pb- or Fe-nuclei. This might be accomplished using
Gd-loaded liquid scintillator. Results for the optimum configuration for such
modules with respect to both neutron detection efficiency and cost efficiency
are presented. Careful consideration has been given to the expected levels of
radioactive backgrounds and their effects. The results show that the amount of
data to be processed by a software trigger can be reduced to the <10kHz region
and a neutron, once produced in the detector, can be detected and identified
with an efficiency of >30%.


title: Gold fragmentation induced by stopped antiprotons

abstract:
  A natural gold target was irradiated with the antiproton beam from the Low
Energy Antiproton Ring at CERN. Antiprotons of 200 MeV/c momentum were stopped
in a thick target, products of their annihilations on Au nuclei were detected
using the off-line gamma-ray spectroscopy method. In total, yields for 114
residual nuclei were determined, providing a data set to deduce the complete
mass and charge distribution of all products with A > 20 from a fitting
procedure. The contribution of evaporation and fission decay modes to the total
reaction cross section as well as the mean mass loss were estimated. The
fission probability for Au absorbing antiprotons at rest was determined to be
equal to (3.8+-0.5)%, in good agreement with an estimation derived using other
techniques. The mass-charge yield distribution was compared with the results
obtained for proton and pion induced gold fragmentation. On the average, the
energy released in pbar annihilation is similar to that introduced by ~ 1 GeV
protons. However, compared to proton bombardment products, the yield
distribution of antiproton absorption residues in the N-Z plane is clearly
distinct. The data for antiprotons exhibit also a substantial influence of
odd-even and shell effects.


title: On the two-proton emission for Fe45 - a new type of radioactivity

abstract:
  In an experiment at the SISSI-LISE3 facility of GANIL, the decay of the
proton drip-line nucleus Fe45 has been studied after projectile fragmentation
of a Ni58 primary beam at 75 MeV/nucleon impinging on a natural nickel target.
Fragment-implantation events have been correlated with radioactive decay events
in a 16x16 pixel silicon strip detector on an event-by-event basis. The
decay-energy spectrum of Fe45 implants shows a distinct peak at
(1.06+/-0.04)MeV with a half-life of T1/2 = (4.7+3.4-1.4)ms. None of the events
in this peak is in coincidence with beta particles which were searched for in a
detector next to the implantation detector. For a longer correlation interval,
daughter decays of the two-proton daughter Cr43 can be observed after Fe45
implantation. The decay energy for Fe45 agrees nicely with several theoretical
predictions for two-proton emission. Barrier-penetration calculations slightly
favour a di-proton emission picture over an emission of two individual protons
and point thus to a He2 emission mode.


title: A Readout System for the STAR Time Projection Chamber

abstract:
  We describe the readout electronics for the STAR Time Projection Chamber. The
system is made up of 136,608 channels of waveform digitizer, each sampling 512
time samples at 6-12 Mega-samples per second. The noise level is about 1000
electrons, and the dynamic range is 800:1, allowing for good energy loss
($dE/dx$) measurement for particles with energy losses up to 40 times minimum
ionizing. The system is functioning well, with more than 99% of the channels
working within specifications.


title:
$K^{\star}(892)^{0}$ Production in Relativistic Heavy Ion Collisions at
  $\sqrt{s_{_{NN}}}=130$ GeV

abstract:
  We report the first observation of $K^{\star}(892)^{0}\to\pi K$ in
relativistic heavy ion collisions. The transverse momentum spectrum of
$(K^{\star0}+\bar{K}^{\star0})/2$ from central Au+Au collisions at
$\sqrt{s_{_{NN}}}=130$ GeV is presented. The ratios of the $K^{\star0}$ yield
derived from these data to the yields of negative hadrons, charged kaons, and
$\phi$ mesons have been measured in central and minimum bias collisions and
compared with model predictions and comparable $e^{+}e^{-}$, $pp$, and
$\bar{p}p$ results. The data indicate no dramatic reduction of $K^{\star0}$
production in relativistic heavy ion collisions despite expected losses due to
rescattering effects.


title:
Measurement of the Eta Production in Proton Proton Collisions with the
  COSY Time of Flight Spectrometer

abstract:
  The reaction pp -> pp eta was measured at excess energies of 15 and 41 MeV at
an external target of the Juelich Cooler Synchrotron COSY with the Time of
Flight Spectrometer. About 25000 events were measured for the excess energy of
15 MeV and about 8000 for 41 MeV. Both protons of the process pp eta were
detected with an acceptance of nearly 100% and the eta was reconstructed by the
missing mass technique. For both excess energies the angular distributions are
found to be nearly isotropic. In the invariant mass distributions strong
deviations from the pure phase space distributions are seen.


title: Flow with PMD: Past and Future

abstract:
  Measurements of azimuthal distribution of inclusive photons using the fine
granularity preshower photon multiplicity detector (PMD) at CERN SPS are used
to obtain anisotropy in the azimuthal distributions. These results are used to
estimate the anisotropy in the neutral pion distributions. The results are
compared with results of charged particle data, both for first order and second
order anisotropy. Assuming the same anisotropy for charged and neutral pions,
the anisotropy in photons is estimated and compared with the measured
anisotropy. The effect of neutral pion decay on the correlation between the
first order and the second order event plane is also discussed. Data from PMD
can also be used to estimate the reaction plane for studying any anisotropy in
particle emission characteristics in the ALICE experiment at the Large Hadron
Collider. In particular, we show that using the event plane from the PMD, it
will be possible to measure the anisotropy in Jpsi absorption (if any) in the
ALICE experiment.


title:
Measurements of Nuclear Level Densities and Gamma-Ray Strength Functions
  and their Interpretations

abstract:
  A method to extract primary $\gamma$-ray spectra from particle-$\gamma$
coincidences at excitation energies up to the neutron binding energy is
described. From these spectra, the level density and $\gamma$-ray strength
function can be determined. From the level density, several thermodynamical
quantities are obtained within the microcanonical and canonical ensemble. Also
models for the $\gamma$-ray strength function are discussed.


title:
Are Recoil Polarization Measurements of $G_E^p/G_M^p$ Consistent With
  Rosenbluth Separation Data?

abstract:
  Recent recoil polarization measurements in Hall A at Jefferson Lab show that
the ratio of the electric to magnetic form factors for the proton decreases
significantly with increasing Q^2. This contradicts previous Rosenbluth
measurements which indicate approximate scaling of the form factors. The cross
section measurements were reanalyzed to try and understand the source of this
discrepancy. We find that the various Rosenbluth measurements are consistent
with each other when normalization uncertainties are taken into account and
that the discrepancy cannot simply be the result of errors in one or two data
sets. If there is a problem in the Rosenbluth data, it must be a systematic,
epsilon-dependent uncertainty affecting several experiments.


title:
The Q^2 evolution of the generalized Gerasimov-Drell-Hearn integral for
  the neutron using a He-3 target

abstract:
  We present data on the inclusive scattering of polarized electrons from a
polarized He-3 target at energies from 0.862 to 5.06 GeV, obtained at a
scattering angle of 15.5 degrees. Our data include measurements from the
quasielastic peak, through the resonance region, to the beginning of the deep
inelastic regime, and were used to determine the spin difference in the virtual
photoabsorption cross section. We extract the extended Gerasimov-Drell-Hearn
integral for the neutron in the range of 4-momentum transfer squared Q^2 of
0.1-0.9 GeV.


title:
Pseudorapidity and centrality dependence of the collective flow of
  charged particles in Au+Au collisions at sqrt{s_NN} = 130 GeV

abstract:
  This paper describes the measurement of collective flow for charged particles
in Au+Au collisions at sqrt{s_NN}} = 130 GeV using the PHOBOS detector at the
Relativistic Heavy Ion Collider (RHIC). An azimuthal anisotropy is observed in
the charged particle hit distribution in the PHOBOS multiplicity detector. This
anisotropy is presented over a wide range of pseudorapidity (eta) for the first
time at this energy. The size of the anisotropy (v_{2}) is thought to probe the
degree of equilibration achieved in these collisions. The result here,averaged
over momenta and particle species, is observed to reach 7% for peripheral
collisions at mid-rapidity, falling off with centrality and increasing |eta|.
Data are presented as a function of centrality for |eta|<1.0 and as a function
of eta, averaged over centrality, in the angular region -5.0<eta<5.3. These
results call into question the common assumption of longitudinal boost
invariance over a large region of rapidity in RHIC collisions.


title:
Elliptic flow from two- and four-particle correlations in Au + Au
  collisions at sqrt{s_{NN}} = 130 GeV

abstract:
  Elliptic flow holds much promise for studying the early-time thermalization
attained in ultrarelativistic nuclear collisions. Flow measurements also
provide a means of distinguishing between hydrodynamic models and calculations
which approach the low density (dilute gas) limit. Among the effects that can
complicate the interpretation of elliptic flow measurements are azimuthal
correlations that are unrelated to the reaction plane (non-flow correlations).
Using data for Au + Au collisions at sqrt{s_{NN}} = 130 GeV from the STAR TPC,
it is found that four-particle correlation analyses can reliably separate flow
and non-flow correlation signals. The latter account for on average about 15%
of the observed second-harmonic azimuthal correlation, with the largest
relative contribution for the most peripheral and the most central collisions.
The results are also corrected for the effect of flow variations within
centrality bins. This effect is negligible for all but the most central bin,
where the correction to the elliptic flow is about a factor of two. A simple
new method for two-particle flow analysis based on scalar products is
described. An analysis based on the distribution of the magnitude of the flow
vector is also described.


title:
Alpha-decay branching ratios of near-threshold states in 19Ne and the
  astrophysical rate of 15O(alpha,gamma)19Ne

abstract:
  The 15O(alpha,gamma)19Ne reaction is one of two routes for breakout from the
hot CNO cycles into the rp process in accreting neutron stars. Its
astrophysical rate depends critically on the decay properties of excited states
in 19Ne lying just above the 15O + alpha threshold. We have measured the
alpha-decay branching ratios for these states using the p(21Ne,t)19Ne reaction
at 43 MeV/u. Combining our measurements with previous determinations of the
radiative widths of these states, we conclude that no significant breakout from
the hot CNO cycle into the rp process in novae is possible via
15O(alpha,gamma)19Ne, assuming current models accurately represent their
temperature and density conditions.


title: n-p Short-Range Correlations from (p,2p + n) Measurements

abstract:
  We studied the $^{12}$C(p,2p+n) reaction at beam momenta of 5.9, 8.0 and 9.0
GeV/c. For quasielastic (p,2p) events we reconstructed {\bf p_f} the momentum
of the knocked-out proton before the reaction; {\bf p_f} was then compared
(event-by-event) with {\bf p_n}, the measured, coincident neutron momentum. For
$|p_n|$ > k$_F$ = 0.220 GeV/c (the Fermi momentum) a strong back-to-back
directional correlation between {\bf p_f} and {\bf p_n} was observed,
indicative of short-range n-p correlations. From {\bf p_n} and {\bf p_f} we
constructed the distributions of c.m. and relative motion in the longitudinal
direction for correlated pairs. After correcting for detection efficiency, flux
attenuation and solid angle, we determined that 49 $\pm$ 13 % of events with
$|p_f|$ > k_F had directionally correlated neutrons with $|p_n|$ > k$_F$. Thus
short-range 2N correlations are a major source of high-momentum nucleons in
nuclei.


title: Coherent rho^0 Production in Ultra-Peripheral Heavy Ion Collisions

abstract:
  The STAR collaboration reports the first observation of exclusive rho^0
photo-production, AuAu->AuAu rho^0, and rho^0 production accompanied by mutual
nuclear Coulomb excitation, AuAu->Au*Au*rho^0, in ultra-peripheral heavy-ion
collisions. The rho^0 have low transverse momenta, consistent with coherent
coupling to both nuclei. The cross sections at sqrt(s_NN)=130GeV agree with
theoretical predictions treating rho^0 production and Coulomb excitation as
independent processes.


title:
Measurement of Spin Transfer Observables in Antiproton-Proton ->
  Antilambda-Lambda at 1.637 GeV/c

abstract:
  Spin transfer observables for the strangeness-production reaction
Antiproton-Proton -> Antilambda-Lambda have been measured by the PS185
collaboration using a transversely-polarized frozen-spin target with an
antiproton beam momentum of 1.637 GeV/c at the Low Energy Antiproton Ring at
CERN. This measurement investigates observables for which current models of the
reaction near threshold make significantly differing predictions. Those models
are in good agreement with existing measurements performed with unpolarized
particles in the initial state. Theoretical attention has focused on the fact
that these models produce conflicting predictions for the spin-transfer
observables D_{nn} and K_{nn}, which are measurable only with polarized target
or beam. Results presented here for D_{nn} and K_{nn} are found to be in
disagreement with predictions from existing models. These results also
underscore the importance of singlet-state production at backward angles, while
current models predict complete or near-complete triplet-state dominance.


title:
Azimuthal anisotropy and correlations in the hard scattering regime at
  RHIC

abstract:
  Azimuthal anisotropy ($v_2$) and two-particle angular correlations of high
$p_T$ charged hadrons have been measured in Au+Au collisions at
$\sqrt{s_{NN}}$=130 GeV for transverse momenta up to 6 GeV/c, where hard
processes are expected to contribute significantly. The two-particle angular
correlations exhibit elliptic flow and a structure suggestive of fragmentation
of high $p_T$ partons. The monotonic rise of $v_2(p_T)$ for $p_T<2$ GeV/c is
consistent with collective hydrodynamical flow calculations. At $\pT>3$ GeV/c a
saturation of $v_2$ is observed which persists up to $p_T=6$ GeV/c.


title:
Characteristics of proportional counter filled with CF$_4$ and Xe
  additions

abstract:
  In this article the measurement results of proportional counter working
characteristics filled with CF$_4$ and Xe ($0\div5$% Xe) additions at different
pressures ($0.8\div14.8$ $at$) are presented. We have found that a bit of Xe
addition reduces working voltage necessary to get the same gas amplification by
two times against pure CF$_4$, it improves as well the resolution of the
counter and increases limit gas amplification by more than ten times.


title:
Kaon Production and Kaon to Pion Ratio in Au+Au Collisions at $\snn=130$
  GeV

abstract:
  Mid-rapidity transverse mass spectra and multiplicity densities of charged
and neutral kaons are reported for Au+Au collisions at $\snn$=130 GeV at RHIC.
The spectra are exponential in transverse mass, with an inverse slope of about
280 MeV in central collisions. The multiplicity densities for these particles
scale with the negative hadron pseudo-rapidity density. The charged kaon to
pion ratios are $K^+/\pi^- = 0.161 \pm 0.002 {\rm (stat)} \pm 0.024 {\rm
(syst)}$ and $K^-/\pi^- = 0.146 \pm 0.002 {\rm (stat)} \pm 0.022 {\rm (syst)}$
for the most central collisions. The $K^+/\pi^-$ ratio is lower than the same
ratio observed at the SPS while the $K^-/\pi^-$ is higher than the SPS result.
Both ratios are enhanced by about 50% relative to p+p and $\bar{\rm p}$+p
collision data at similar energies.


title:
Determination of the S_18 astrophysical factor for 8B(p,gamma)9C from
  the breakup of 9C at intermediate energies

abstract:
  We have used existing data on the one-proton-removal cross section of 9C at
285 MeV/u and Glauber model calculations to extract the asymptotic
normalization coefficient for the wave function of the last proton in the
ground state of 9C. The calculations are done first using folded potentials
starting from two different effective nucleon-nucleon interactions and second
in the optical limit using three nucleon-nucleon interactions, and the results
are found to be consistent, with no new parameters adjusted. We find
C^2(p3/2)+C^2(p1/2)=1.22+/- fm-1. From this result we obtain the astrophysical
factor for the proton radiative capture reaction 8B(p,gamma)9C as
S_18(0)=46+/-6 eVb. The calculated energy dependence of the astrophysical
S-factor for the energy region Ecm=0-0.8 MeV and the reaction rates for T_9=0-1
are included. PACS no(s): 26.65.+7; 25.60.Dz,25.60.Gc; 24.10.-i; 27.20.+n


title:
Has Nucleonic Matter at the Critical Point Been Produced in Recent
  Multifragmentation Experiments?

abstract:
  For nuclei in five different mass regions the critical temperatures, at which
the surface tension vanishes, are derived from information on the liquid branch
of the coexistence curve. These critical temperatures increase with increasing
mass and, for higher masses are well above recently reported critical
temperatures obtained from Fisher Droplet model and percolation model analyses.
However, for the lowest mass region nuclei, with 30<A<60, this analysis
indicates that nucleonic matter has been produced essentially at the critical
point, characterized by Tc and rho_c.


title:
Centrality dependence of high pT hadron suppression in Au+Au collisions
  at sqrt(sNN)=130 GeV

abstract:
  Inclusive transverse momentum distributions of charged hadrons within
0.2<pT<6.0 GeV/c have been measured over a broad range of centrality for Au+Au
collisions at sqrt(sNN)=130 GeV. Hadron yields are suppressed at high pT in
central collisions relative to peripheral collisions and to a nucleon-nucleon
reference scaled for collision geometry. Peripheral collisions are not
suppressed relative to the nucleon-nucleon reference. The suppression varies
continuously at intermediate centralities. The results indicate significant
nuclear medium effects on high pT hadron production in heavy ion collisions at
high energy.


title:
Ratios of charged antiparticles to particles near mid-rapidity in Au+Au
  collisions at sqrt(s_NN) = 200 GeV

abstract:
  The ratios of charged antiparticles to particles have been obtained for
pions, kaons and protons near midrapidity in central Au+Au collisions at
sqrt(s_NN) = 200 GeV. Ratios of <pi->/<pi+> = 1.025 +/- 0.006 (stat.) +/- 0.018
(syst.), <K->/<K+> = 0.95 +/- 0.03 (stat.) +/- 0.03 (syst.) and <pbar>/<p> =
0.73 +/- 0.02 (stat.) +/- 0.03 (syst.) have been observed. The <K->/<K+> and
<pbar>/<p> ratios are consistent with a baryochemical potential mu_B of 27 MeV,
roughly a factor of 2 smaller than in sqrt(s_NN) = 130 GeV collisions. The data
are compared to results from lower energies and model calculations. Our
accurate measurements of the particle ratios impose stringent constraints on
current and future models dealing with baryon production and transport.


title:
Irradiation of nuclear emulsions in relativistic beams of He-6 and H-3
  nuclei

abstract:
  Using a Li-6 nucleus beam extracted from the JINR Synchrophasotron at
momentum 2.67A GeV/c a secondary beam was produced with a composition of 1% of
He-6 and 99% of H-3 nuclei. Preliminary results on the features of
nucleus-nucleus interactions of He-6 nuclei and charge exchange (CE) of H-3
nucleus are presented. Interactions of He-6 nucleus external neutrons with
emulsion nuclei as well as a coherent stripping of He-6 nucleus external
neutrons are observed. A mean range of H-3 nuclei to inelastic interactions in
the BR-2 type emulsion is equal to 23.$\pm$3.0 cm. A mean range in emulsion for
a nuclear CE process H-3 to He-3 is equal to 40$\pm$16 m. The CE cross-sections
with a charged meson production or without it are approximately equal. The CE
cross-section with excitation of a target nucleus exceeds the one without
excitation. The mean transverse momentum of He-3 nuclei is equal to
0.16$\pm$0.03 GeV/c.


title:
A new experiment for the determination of the 18F(p,alpha) reaction rate
  at nova temperatures

abstract:
  The 18F(p,alpha) reaction was recognized as one of the most important for
gamma ray astronomy in novae as it governs the early 511 keV emission. However,
its rate remains largely uncertain at nova temperatures. A direct measurement
of the cross section over the full range of nova energies is impossible because
of its vanishing value at low energy and of the short 18F lifetime. Therefore,
in order to better constrain this reaction rate, we have performed an indirect
experiment taking advantage of the availability of a high purity and intense
radioactive 18F beam at the Louvain La Neuve RIB facility. We present here the
first results of the data analysis and discuss the consequences.


title:
Nucleon density in the nuclear periphery determined with antiprotonic
  x-rays: cadmium and tin isotopes

abstract:
  The x-ray cascade from antiprotonic atoms was studied for 106Cd, 116Cd,
112Sn, 116Sn, 120Sn, and 124Sn. Widths and shifts of the levels due to strong
interaction were deduced. Isotopic effects in the Cd and Sn isotopes are
clearly seen. The results are used to investigate the nucleon density in the
nuclear periphery. The deduced neutron distributions are compared with the
results of the previously introduced radiochemical method and with HFB
calculations.


title: Centrality Dependence of Inclusive Identified Hadrons in PHENIX

abstract:
  Results of identified charged hadrons produced in Au+Au collisions at
${\sqrt{s_{NN}}} = 130$ GeV as a function of centrality are discussed. The
$<{p_{T}}>$ of protons and antiprotons is significantly larger than in p--p
collisions at the same center of mass energy. Its scaling with the number of
participant nucleons, an increase of $20 \pm 5%$ from peripheral to central,
may be due to radial expansion. In a hydrodynamical picture a simultaneous fit
of pions, kaons and protons is consistent with a radial flow velocity of
$\beta_{\rm{Tsurface}} = 0.72 \pm 0.01$ and a temperature of $T = 122 \pm 4$
MeV for the 5% most central collisions. Dominant proton yields at ${p_{T}} >
1.5$ GeV/c and antiproton yields at ${p_{T}} > 1.8$ GeV/c may be explained by a
combination of suppression of pion yields at high ${p_{T}}$ and the boost of
low ${p_{T}}$ protons to high ${p_{T}}$ from radial flow.


title:
Centrality dependence of charged-neutral particle fluctuations in 158A
  GeV Pb+Pb collisions

abstract:
  Results on the study of localized fluctuations in the multiplicity of charged
particles and photons produce 158A GeV/c Pb+Pb collisions are presented for
four different centrality classes. The charged versus neutral particle
multiplicity correlations in common phase space regions of varying azimuthal
size are analyzed by two different methods. Various types of mixed events are
constructed to probe fluctuations arising from different sources. The measured
results are compared to those from simulations and from mixed events. The
comparison indicates the presence of non-statistical fluctuations in both the
charged particle and photon multiplicities in limited azimuthal regions which
decrease with decrease in centrality. However, no correlated charged-neutral
fluctuations, a possible signature of formation of disoriented chiral
condensates, are observed. An upper limit on the production of disoriented
chiral condensates has been set.


title: Search for the Production of Element 112 in the 48Ca + 238U Reaction

abstract:
  We have searched for the production of element 112 in the reaction of 231 MeV
48Ca with 238U. We have not observed any events with a "one event" upper limit
cross section of 1.6 pb for EVR-fission events and 1.8 pb for EVR-alpha events.


title: Highly deformed $^{40}$Ca configurations in $^{28}$Si + $^{12}$C

abstract:
  The possible occurrence of highly deformed configurations in the $^{40}$Ca
di-nuclear system formed in the $^{28}$Si + $^{12}$C reaction is investigated
by analyzing the spectra of emitted light charged particles. Both inclusive and
exclusive measurements of the heavy fragments (A $\geq$ 10) and their
associated light charged particles (protons and $\alpha$ particles) have been
made at the IReS Strasbourg {\sc VIVITRON} Tandem facility at bombarding
energies of $E_{lab} (^{28}$Si) = 112 MeV and 180 MeV by using the {\sc ICARE}
charged particle multidetector array. The energy spectra, velocity
distributions, and both in-plane and out-of-plane angular correlations of light
charged particles are compared to statistical-model calculations using a
consistent set of parameters with spin-dependent level densities. The analysis
suggests the onset of large nuclear deformation in $^{40}$Ca at high spin.


title:
Search for Narrow NNpi Resonances in Exclusive p p -> p p pi+ pi-
  Measurements

abstract:
  Narrow structures in the range of a few MeV have been searched for in p p pi+
and p p pi- invariant mass spectra obtained from exclusive measurements of the
p p -> p p pi+ pi- reaction at Tp = 725, 750 and 775 MeV using the PROMICE/WASA
detector at CELSIUS. The selected reaction is particularily well suited for the
search for NN and / or N Delta decoupled dibaryon resonances. Except for a
possible fluctuation at 2087 MeV/c^2 in Mpppi- no narrow structures could be
identified neither in Mpppi+ nor in Mpppi- on the 3 sigma level of statistical
significance, giving an upper limit (95% C.L.) for dibaryon production in this
reaction of sigma < 20 nb for 2020 MeV/c^2 < m(dibaryon) < 2085 MeV/c^2


title:
Comparative Study of Multifragmentation of Gold Nuclei Induced by
  Relativistic Protons, $^4$He, and $^{12}$C

abstract:
  Multiple emission of intermediate-mass fragments has been studied for the
collisions of p, $^4$He and $^{12}$C on Au with the $4\pi$ setup FASA. The mean
IMF multiplicities (for the events with at least one IMF) are saturating at the
value of $2.2\pm0.2$ for the incident energies above 6 GeV. The observed IMF
multiplicities cannot be described in a two-stage scenario, a fast cascade
followed by a statistical multifragmentation. Agreement with the measured IMF
multiplicities is obtained by introducing an intermediate phase and modifying
empirically the excitation energies and masses of the remnants.
  The angular distributions and energy spectra from the p-induced collisions
are in agreement with the scenario of ``thermal'' multifragmentation of a hot
and diluted target spectator. In the case of $^{12}$C+Au(22.4 GeV) and
$^4$He(14.6 GeV)+Au collisions, deviations from a pure thermal break-up are
seen in the energy spectra of the emitted fragments, which are harder than
those both from model calculations and from the measured ones for p-induced
collisions. This difference is attributed to a collective flow.


title: Protduction of K+ mesons in proton-nucleus interactions

abstract:
  The production of K+ mesons in pA (A= C, Cu, Ag, Au) collisions has been
investigated at the COoler SYnchrotron COSY-Juelich at beam energies T=1.0 ...
2.3 GeV using the ANKE spectrometer. ANKE allows to measure double differential
cross sections for K+ production at forward angles theta< 12 degr. in a wide
momentum range. The cross sections obtained in these experiments together with
those from literature show a uniform behavior as functions of momentum transfer
and excitation energy of the residual nucleus. At the lowest measured beam
energy, far below the free NN-threshold (T_NN=1.58 GeV), the data reveal a high
degree of collectivity in the target nucleus. The spectra obtained above
threshold should allow one to extract the nuclear K+ potential with an accuracy
of better than +/-3 MeV. Information about the mechanisms leading to K+
production can be obtained from K+p and K+d coincidence measurements.


title:
Experimental evidence for narrow baryons in the mass range 1.0$\le$ M
  $\le$1.46 GeV

abstract:
  The reaction p p $\to$ p ${\pi^+}X$ was studied at different incident
energies around T$_{p}$=2 GeV. Narrow baryonic structures were observed in the
missing mass M$_{X}$ and in the invariant mass M$_{p\pi^{+}}$. The masses of
these structures are: 1004, 1044, 1094, 1136, 1173, 1249, 1277, and 1384 MeV
(and possibly 1339 MeV). Some of them were also observed at the same masses in
the missing mass spectra of the d p $\to$ p p X reaction although with a weaker
signature. Many checks were performed to make sure that these structures were
not produced by experimental artifacts. Several narrow small amplitude peaks,
were also extracted using already published photo-nucleon cross sections. The
small widths of all these results, and the stability of the observed
structures, regardless of the experiment, were used to conclude that they are
genuine baryons which and not merely the consequence of dynamical
rescatterings. These baryons cannot be associated with classical $q^{3}$ quark
configurations. We associate them with two colored cluster quark
configurations.


title: Low Mass Exotic Baryons: Myth or Reality ?

abstract:
  Using mainly $\vec{p}$ p $\to$ p ${\pi^+}X$ and $\vec{p}$ p $\to$
p$_{f}$~p$_{s}$ X reactions, narrow baryonic structures were observed in the
mass range 950$\le$ M $\le$ 1800 MeV.


title:
Beam Energy and Centrality Dependence of Two-Pion Bose-Einstein
  Correlations at SPS Energies

abstract:
  Results are presented of a two-pion interferometry (HBT) analysis in Pb+Au
collisions at 40, 80, and 158 AGeV. A detailed study of the Bertsch-Pratt HBT
radius parameters has been performed as function of the mean pair transverse
momentum $k_t$ and in bins of the centrality of the collision. From these
results we extract model dependent information about the space-time evolution
of the reaction. An investigation of the effective volume of the pion emitting
system provides an important tool to study the properties of thermal pion
freeze-out.


title:
Rapidity Dependence of Charged Antiparticle-to-Particle Ratios in Au+Au
  Collisions at $\sqrt{s_{NN}}=200$ GeV

abstract:
  We present ratios of the numbers of charged antiparticles to particles
(pions, kaons and protons) in Au + Au collisions at $\sqrt{s_{NN}}=200$ GeV as
a function of rapidity in the range $y$=0-3. While the particle ratios at
midrapidity are approaching unity, the $K^-/K^+$ and $\bar{p}/p$ ratios
decrease significantly at forward rapidities. An interpretation of the results
within the statistical model indicates a reduction of the baryon chemical
potential from $\mu_B \approx 130$MeV at $y$=3 to $\mu_B \approx 25$MeV at
$y$=0.


title: Dissipative collisions in $^{16}$O + $^{27}$Al at E$_{lab}$=116 MeV

abstract:
  The inclusive energy distributions of fragments (3$\leq$Z$\leq$7) emitted in
the reaction $^{16}$O + $^{27}$Al at $E_{lab} = $116 MeV have been measured in
the angular range $\theta_{lab} $= 15$^\circ$ - 115$^\circ$. A non-linear
optimisation procedure using multiple Gaussian distribution functions has been
proposed to extract the fusion-fission and deep inelastic components of the
fragment emission from the experimental data. The angular distributions of the
fragments, thus obtained, from the deep inelastic component are found to fall
off faster than those from the fusion-fission component, indicating shorter
life times of the emitting di-nuclear systems. The life times of the
intermediate di-nuclear configurations have been estimated using a diffractive
Regge-pole model. The life times thus extracted ($\sim 1 - 5\times 10^{-22}$
Sec.) are found to decrease with the increase in the fragment charge. Optimum
Q-values are also found to increase with increasing charge transfer i.e. with
the decrease in fragment charge.


title: Universal Pion Freeze-out in Heavy-Ion Collisions

abstract:
  Based on an evaluation of data on pion interferometry and on particle yields
at mid-rapidity, we propose a universal condition for thermal freeze-out of
pions in heavy-ion collisions. We show that freeze-out occurs when the mean
free path of pions lambda_f reaches a value of about 1 fm, which is much
smaller than the spatial extent of the system at freeze-out. This critical mean
free path is independent of the centrality of the collision and beam energy
from AGS to RHIC.


title:
Centrality Dependence of the High p_T Charged Hadron Suppression in
  Au+Au collisions at sqrt(s_NN) = 130 GeV

abstract:
  PHENIX has measured the centrality dependence of charged hadron p_T spectra
from central Au+Au collisions at sqrt(s_NN)=130 GeV. The truncated mean p_T
decreases with centrality for p_T > 2 GeV/c, indicating an apparent reduction
of the contribution from hard scattering to high p_T hadron production. For
central collisions the yield at high p_T is shown to be suppressed compared to
binary nucleon-nucleon collision scaling of p+p data. This suppression is
monotonically increasing with centrality, but most of the change occurs below
30% centrality, i.e. for collisions with less than about 140 participating
nucleons. The observed p_T and centrality dependence is consistent with the
particle production predicted by models including hard scattering and
subsequent energy loss of the scattered partons in the dense matter created in
the collisions.


title:
Precise Measurement of Sigma Beam Asymmetry for Positive Pion
  Photoproduction on the Proton from 800 to 1500 Mev

abstract:
  The Sigma beam asymmetry for positive pion photoproduction on the proton has
been measured over an angular range of 40-170 deg at photon energies from 0.8
to 1.5 GeV. The resulting data set includes 237 accurate points, 136 of these
belonging to an almost unexplored domain above 1.05 GeV. Data of such high
precision provide severe constraints for partial wave analyses. The influence
of this experiment on the GW multipole analysis is demonstrated. Significant
changes are found in multipoles connected to the S31(1620) and P13(1720)
resonances. Comparisons using the MAID analysis are also presented.


title:
Three-body dN interaction in the analysis of the 12C(pol_d,d') reaction
  at 270 MeV

abstract:
  We have measured the cross sections and analyzing powers Ay and Ayy for the
elastic and inelastic scattering of deuterons from the 0+(g.s.), 2+(4.44 MeV),
3-(9.64 MeV), 1+(12.71 MeV), and 2-(18.3 MeV) states in 12C at an incident
energy of 270 MeV. The data are compared with microscopic distorted-wave
impulse approximation calculations where the projectile-nucleon effective
interactionis taken from the three-nucleon t-matrix given by rigorous Faddeev
calculations presently available at intermediate energies. The agreement
between theory and data compares well with that for the (p,p') reactions at
comparable incident energies/nucleon.


title:
Investigation of the role of neutron transfer in the fusion of 32,34S
  with 197Au,208Pb using quasi-elastic scattering

abstract:
  Excitation functions for quasi-elastic scattering have been measured at
backward angles for the systems 32,34S+197Au and 32,34S+208Pb for energies
spanning the Coulomb barrier. Representative distributions, sensitive to the
low energy part of the fusion barrier distribution, have been extracted from
the data. For the fusion reactions of 32,34S with 197Au couplings related to
the nuclear structure of 197Au appear to be dominant in shaping the low energy
part of the barrier distibution. For the system 32S+208Pb the barrier
distribution is broader and extends further to lower energies, than in the case
of 34S+208Pb. This is consistent with the interpretation that the neutron
pick-up channels are energetically more favoured in the 32S induced reaction
and therefore couple more strongly to the relative motion. It may also be due
to the increased collectivity of 32S, when compared with 34S.


title:
Transition rates and nuclear structure changes in mirror nuclei 47Cr and
  47V

abstract:
  Lifetime measurements in the mirror nuclei 47Cr and 47V were performed by
means of the Doppler-shift attenuation method using the multidetector array
EUROBALL, in conjunction with the ancillary detectors ISIS and the Neutron
Wall. The determined transition strengths in the yrast cascades are well
described by full pf shell model calculations.


title:
Production of Neutron-rich Heavy Residues and the Freeze-out Temperature
  in the Fragmentation of Relativistic 238U Projectiles Determined by the
  Isospin Thermometer

abstract:
  Isotope yields of heavy residues produced in collisions of 238U with lead at
1AGeV show indications for a simultaneous break-up process. From the average
N-over-Z ratio of the final residues up to Z = 70, the average limiting
temperature of the break-up configuration at freeze out was determined to T
approximately 5 MeV using the isospin-thermometer method. Consequences for the
understanding of other phenomena in highly excited nuclear systems are
discussed.


title: Transverse Velocity Scaling in Au+Au Fragmentation

abstract:
  Invariant transverse-velocity spectra of intermediate-mass fragments were
measured with the 4-pi multi-detector system INDRA for collisions of Au on Au
at incident energies between 40 and 150 MeV per nucleon. Their scaling
properties as a function of incident energy and atomic number Z are used to
distinguish and characterize the emissions in (i) peripheral collisions at the
projectile and target rapidities, and in (ii) central and (iii) peripheral
collisions near mid-rapidity. The importance of dynamical effects is evident in
all three cases and their origin is discussed.


title:
Concentration of electric dipole strength below the neutron separation
  energy in N = 82 nuclei

abstract:
  The semi-magic nuclei Ba-138, Ce-140, and Sm-144 have been investigated in
photon scattering experiments up to an excitation energy of about 10 MeV. The
distribution of the electric dipole strength shows a resonance like structure
at energies between 5.5 and 8 MeV exhausting up to 1% of the isovector E1
Energy Weighted Sum Rule.


title:
Critical exponents and phase transition in gold nuclei fragmentation at
  energies 10.6 and 4.0 GeV/nucleon

abstract:
  An attempt to extract critical exponents gamma, beta and tau from data on
gold nuclei fragmentation due to interactions with nuclear emulsion at energies
4.0 A GeV and 10.6 A GeV is presented. Based on analysis of Campi's 2nd charge
moments, two subsets of data at each energy are selected from the inclusive
data, corresponding to 'liquid' and 'gas' phases. The extracted values of
critical exponents from the selected data sets are in agreement with
predictions of 'liquid-gas' model of phase transition.


title:
Comment to `The dependence of the anomalous J/psi suppression on the
  number of participant nucleons'

abstract:
  The recently published experimental dependence of the J/psi suppression
pattern in Pb+Pb collisions at the CERN SPS on the energy of zero degree
calorimeter E_ZDC are analyzed. It is found that the data obtained within the
`minimum bias' analysis (using `theoretical Drell-Yan') are at variance with
the previously published experimental dependence of the same quantity on the
transversal energy of neutral hadrons E_T. The discrepancy is related to the
moderate centrality region: 100 < N_p < 200 (N_p is the number of nucleon
participants). This could result from systematic experimental errors in the
minimum bias sample. A possible source of the errors may be contamination of
the minimum bias sample by off-target interactions. The data obtained within
the standard analysis (using measured Drell-Yan multiplicity) are found to be
much less sensitive to the contamination.


title: Soft Particle Spectra at STAR

abstract:
  We presented the multiplicity and the spectra of many particles in Au+Au at
sqrt(s_{_{NN}})=130 GeV measured by STAR detector. Their connections to initial
condition, baryon creation, freeze-out condition and strangeness enhancement
were discussed.


title: Search for d^* Dibaryon by Double-radiative Capture on Pionic Deuterium

abstract:
  We report a search for d^* dibaryon production by double-radiative capture on
pionic deuterium. The experiment was conducted at the TRIUMF cyclotron using
the RMC cylindrical pair spectrometer, and detected gamma-ray coincidences
following pion stops in liquid deuterium. We found no evidence for narrow
dibaryons, and obtained a branching ratio upper limit, BR < 6.7 times 10^{-6}
(90% C.L.), for narrow d^* production in the mass range from 1920 to 1980 MeV.
  Replaced with Physics Letter B accepted version and corrected normalization.


title:
Isotopic composition of fragments in multifragmentation of very large
  nuclear systems: effects of the chemical equilibrium

abstract:
  Studies on the isospin of fragments resulting from the disassembly of highly
excited large thermal-like nuclear emitting sources, formed in the ^{197}Au +
^{197}Au reaction at 35 MeV/nucleon beam energy, are presented. Two different
decay systems (the quasiprojectile formed in midperipheral reactions and the
unique source coming from the incomplete fusion of projectile and target in the
most central collisions) were considered; these emitting sources have the same
initial N/Z ratio and excitation energy (E^* ~= 5--6 MeV/nucleon), but
different size. Their charge yields and isotopic content of the fragments show
different distributions. It is observed that the neutron content of
intermediate mass fragments increases with the size of the source. These
evidences are consistent with chemical equilibrium reached in the systems. This
fact is confirmed by the analysis with the statistical multifragmentation
model.


title:
Charged Particle Multiplicity and Limiting Fragmentation in Au+Au
  Collisions at RHIC Energies Using the Phobos Detector

abstract:
  The first measurements of charged particle pseudorapidity distributions
obtained from Au + Au collisions at the maximum RHIC energy sqrt(s_{NN}) = 200
GeV) using the PHOBOS detector are presented. A comparison of the
pseudorapidity distributions at energies 130 and 200 GeV for different
centrality bins is made, including an estimate of the total number of charged
particles. Away from the mid-rapidity region, a comparison between Pb + Pb at
SPS energy sqrt(s_{NN}) = 17.3 GeV and Au + Au at RHIC energy sqrt(s_{NN}) =
130 GeV indicates that the extent of the limiting fragmentation region grows by
about 1.5 units of eta - y_{beam} over this energy range. We also observe that
the extent of the limiting fragmentation region is independent of centrality at
the same energy, but that the particle production per participant in the
limiting fragmentation region grows at high eta - y_{beam} >= -1.5 for more
peripheral collisions. In combination with results from lower energies and from
bar{p} + p collisions, these data permit a systematic analysis of particle
production mechanisms in nucleus-nucleus collisions.


title: Experimental study of the eta-meson interaction with two-nucleons

abstract:
  By means of the COSY-11 detection system, using a stochastically cooled
proton beam of the cooler synchrotron COSY and a hydrogen cluster target, we
have performed a high statistics measurement of the pp --> pp eta reaction at
an excess energy of Q = 15.5 MeV.
  The experiment was based on the four-momentum determination of both outgoing
protons. This permits to identify pp --> pp eta events and to derive the
complete kinematical information of the eta-p-p-system allowing for subsequent
investigations of the eta-p interaction.
  The observed spectrum of the invariant mass of the proton-proton system
deviates strongly from the phase-space distribution revealing the influence of
the final-state-interaction among the outgoing particles or nontrivial features
of the primary production mechanism.


title:
A New Precision Measurement of the 7Be(p,gamma)8B Cross section with an
  Implanted 7Be Target

abstract:
  The 7Be(p,gamma)8B reaction plays a central role in the evaluation of solar
neutrino fluxes. We report on a new precision measurement of the cross section
of this reaction, following our previous experiment with an implanted 7Be
target, a raster scanned beam and the elimination of the backscattering loss.
The new measurement incorporates a more abundant 7Be target and a number of
improvements in design and procedure. The point at Elab=991 keV was measured
several times under varying conditions, yielding a value of S17(Ec.m. =850 keV)
= 24.0(5) eV b. Measurements were carried out at lower energies as well. Due to
the precise knowledge of the implanted 7Be density profile it was possible to
reconstitute both the off- and on resonance parts of the cross section and to
obtain from the entire set of measurements an extrapolated value of
S17(0)=21.2(7) eV b.


title: Silicon Pad Detectors for the PHOBOS Experiment at RHIC

abstract:
  The PHOBOS experiment is well positioned to obtain crucial information about
relativistic heavy ion collisions at RHIC, combining a multiplicity counter
with a multi-particle spectrometer. The multiplicity arrays will measure the
charged particle multiplicity over the full solid angle. The spectrometer will
be able to identify particles at mid-rapidity. The experiment is constructed
almost exclusively of silicon pad detectors. Detectors of nine different types
are configured in the multiplicity and vertex detector (22,000 channels) and
two multi-particle spectrometers (120,000 channels). The overall layout of the
experiment, testing of the silicon sensors and the performance of the detectors
during the engineering run at RHIC in 1999 are discussed.


title:
PWIA Extraction of the Neutron Magnetic Form Factor from Quasi-Elastic
  3He(e,e') at Q^2 = 0.3 to 0.6 (GeV/c)^2

abstract:
  A high precision measurement of the transverse spin-dependent asymmetry
A_{T'} in ^3 vec{He}(vec{e},e') quasielastic scattering was performed in Hall A
at Jefferson Lab at values of the squared four-momentum transfer, Q^2, between
0.1 and 0.6 (GeV/c)^2. A_{T'} is sensitive to the neutron magnetic form factor,
G_M^n. Values of G_M^n at Q^2 = 0.1 and 0.2 (GeV/c)^2, extracted using Faddeev
calculations, were reported previously. Here, we report the extraction of G_M^n
for the remaining Q^2-values in the range from 0.3 to 0.6 (GeV/c)^2 using a
Plane-Wave Impulse Approximation calculation. The results are in good agreement
with recent precision data from experiments using a deuterium target.


title: A Search for Neutral Baryon Resonances Below Pion Threshold

abstract:
  The reaction p(e,e^{prime}pi^+)X^0 was studied with two high resolution
magnetic spectrometers to search for narrow baryon resonances. A missing mass
resolution of 2.0 MeV was achieved.
  A search for structures in the mass region of 0.97 < M_{X^0} < 1.06 GeV
yielded no significant signal. The yield ratio of
p(e,e^{prime}pi^+)X^0/p(e,e^{prime}pi^+)n was determined to be (-0.35 +/- 0.35)
times 10^{-3} at 1.004 GeV and (0.34 +/- 0.42) times 10^{-3} at 1.044 GeV.


title: Elastic Electron Scattering from Light Nuclei

abstract:
  The charge and magnetic form factors of light nuclei, mainly for mass numbers
A<=4, provide a sensitive test of our understanding of nuclei. A number of
"exact" calculations of the wave functions starting from the nucleon-nucleon
interaction are available. The treatment of two-body effects needed in the
calculation of the electromagnetic form factors has made significant progress.
Many electron scattering experiments have provided an extensive data base from
which the various (mainly elastic) form factors can be extracted. This review
discusses the data and the determination of the form factors, and compares them
to the results of theory.


title:
Measurement of radium concentration in water with Mn-coated beads at the
  Sudbury Neutrino Observatory

abstract:
  We describe a method to measure the concentration of 224Ra and 226Ra in the
heavy water target used to detect solar neutrinos at the Sudbury Neutrino
Observatory and in the surrounding light water shielding. A water volume of
(50-400) m^3 from the detector is passed through columns which contain beads
coated with a compound of manganese oxide onto which the Ra dissolved in the
water is adsorbed. The columns are removed, dried, and mounted below an
electrostatic chamber into which the Rn from the decay of trapped Ra is
continuously flowed by a stream of nitrogen gas. The subsequent decay of Rn
gives charged Po ions which are swept by the electric field onto a solid-state
alpha counter. The content of Ra in the water is inferred from the measured
decay rates of 212Po, 214Po, 216Po, and 218Po. The Ra extraction efficiency is
>95%, the counting efficiency is 24% for 214Po and 6% for 216Po, and the method
can detect a few atoms of 224Ra per m^3 and a few tens of thousands of atoms of
226Ra per m^3. Converted to equivalent equilibrium values of the topmost
elements of the natural radioactive chains, the detection limit in a single
assay is a few times 10^(-16) g Th or U/cm^3. The results of some typical
assays are presented and the contributions to the systematic error are
discussed.


title: The Pion Form Factor

abstract:
  The experimental situation with regard to measurements of the pion charge
form factor is reviewed. Both existing data and planned experiments are
discussed.


title:
Measurement of the cross section for the reaction
  127I(neutrino,electron)127Xe_(bound states) with neutrinos from the decay of
  stopped muons

abstract:
  The cross section for the reaction 127I(neutrino,electron)127Xe_(bound
states) has been measured for electron neutrinos from the decay of stopped
muons to be [2.84 +/- 0.91 (stat) +/- 0.25 (syst)] x 10^(-40) cm^2. A tank
containing 1540 kg of 127I in the form of NaI solution was placed 8.53 m from
the LAMPF beamstop where it received a typical flux of 5 x 10^7 neutrinos/(cm^2
s). The 127Xe atoms produced by neutrino capture were extracted from the target
solution, placed in miniature proportional counters, and their number was
determined by counting. This is the first measurement of a neutrino capture
cross section for an I nucleus and is in good agreement with a recent
calculation.


title:
Azimuthal anisotropy of K^0_S and Lambda production at mid-rapidity from
  Au+Au collisions at root s_NN = 130 GeV

abstract:
  We report STAR results on the azimuthal anisotropy parameter v2 for strange
particles K0S and Lambda at midrapidity in Au+Au collisions at /s_NN = 130 GeV
at RHIC. The value of v2 as a function of transverse momentum pt and collision
centrality is presented for both particles and compared to model calculations.
A strong pt dependence in v2 is observed up to pt ~2.0 GeV/c where v2 begins to
saturate.


title: Recent results on spectra and yields from NA49

abstract:
  The energy dependence of hadron production in central Pb+Pb collisions is
presented and discussed. In particular, midrapidity $m_T$-spectra for $\pi^-$,
$K^-$, $K^+$, $p$, $\bar{p}$, $d$, $\phi$, $\Lambda$ and $\bar{\Lambda}$ at 40,
80 and 158 $A$GeV are shown. In addition $\Xi$ and $\Omega$ spectra are
available at 158 $A$GeV. The spectra allow to determine the thermal freeze-out
temperature $T$ and the transverse flow velocity $\beta_T$ at the three
energies. We do not observe a significant energy dependence of these
parameters; furthermore there is no indication of early thermal freeze-out of
$\Xi$ and $\Omega$ at 158 $A$GeV. Rapidity spectra for $\pi^-$, $K^-$, $K^+$
and $\phi$ at 40, 80 and 158 $A$GeV are shown, as well as first results on
$\Omega$ rapidity distributions at 158 $A$GeV. The chemical freeze-out
parameters $T$ and $\mu_B$ at the three energies are determined from the total
yields. The parameters are close to the expected phase boundary in the SPS
energy range and above. Using the total yields of kaons and lambdas, the energy
dependence of the strangeness to pion ratio is discussed. A maximum in this
ratio is found at 40 $A$GeV. This maximum could indicate the formation of
deconfined matter at energies above 40 $A$GeV. A search for open charm in a
large sample of 158 $A$GeV events is presented. No signal is observed. This
result is compared to several model predictions.


title:
A radium assay technique using hydrous titanium oxide adsorbent for the
  Sudbury Neutrino Observatory

abstract:
  As photodisintegration of deuterons mimics the disintegration of deuterons by
neutrinos, the accurate measurement of the radioactivity from thorium and
uranium decay chains in the heavy water in the Sudbury Neutrino Observatory
(SNO) is essential for the determination of the total solar neutrino flux. A
radium assay technique of the required sensitivity is described that uses
hydrous titanium oxide adsorbent on a filtration membrane together with a
beta-alpha delayed coincidence counting system. For a 200 tonne assay the
detection limit for 232Th is a concentration of 3 x 10^(-16) g Th/g water and
for 238U of 3 x 10^(-16) g U/g water. Results of assays of both the heavy and
light water carried out during the first two years of data collection of SNO
are presented.


title:
Investigation of Neutron Characteristics for Salt Blanket Models;
  Integral Fission Cross Section Measurements of Neptunium, Plutonium,
  Americium and Curium Isotopes

abstract:
  Neutron characteristics of salt blanket micromodels containing mixtures of
sodium, zirconium and uranium sulphides were measured on FKBN-2M, BIGR and
MAKET installations. The effective fission cross sections of neptunium,
plutonium, americium and curium isotopes were measured on the neutron spectra
formed by micromodels.


title:
Experimental and Theoretical Study of the Residual Product Nuclide
  Yields in 100-2600 MeV Proton-Irradiated Thin Targets

abstract:
  The work is aimed at experimental determining and computer simulating the
independent and cumulative yields of residual product nuclei in the target and
structure materials of the transmutation facilities driven by high-current
accelerators. The ITEP U-10 accelerator was used in 48 experiments to obtain
more than 4000 values of the yields of radioactive residual product nuclei in
0.1-2.6 GeV proton-irradiated thin 182,183,184,186-W, nat-W, 56-Fe, 58-Ni,
93-Nb, 232-Th, nat-U, 99-Tc, 59-Co 63,65-Cu, nat-Hg, 208-Pb, and 27-Al targets.
The results of verifying the LAHET, CEM95, CEM2k, CASCADE, CASCADE/INPE,
YIELDX, HETC, INUCL, and other simulation codes are presented.


title:
Threshold Reaction Rates and Energy Spectra of Neutrons in the 0.8-1.6
  GeV Proton-Irradiated W, Na Targets

abstract:
  Considering the prospects of using the W-Na target assemblies in ADS
facilities, the experiments were made to study the nuclear-physics
characteristics of W and Na, and the composite structures thereof in their
interactions with 0.8-GeV and 1.6-GeV protons. The neutron and proton-induced
reaction rates were measured inside, and on the surface of, a cylinder-shaped
heterogeneous W-Na assembly together with the double-differential spectra of
secondary neutrons emitted from different-depth W and Na discs. The measurement
results were simulated by the LAHET, CEM2k, and KASKAD-S codes in terms of the
latest versions of nuclear databases.


title: Particle density fluctuations

abstract:
  Event-by-event fluctuations in the multiplicities of charged particles and
photons at SPS energies are discussed. Fluctuations are studied by controlling
the centrality of the reaction and rapidity acceptance of the detectors.
Results are also presented on the event-by-event study of correlations between
the multiplicity of charged particles and photons to search for DCC-like
signals.


title: Results on correlations and fluctuations from NA49

abstract:
  The large acceptance and high momentum resolution as well as the significant
particle identification capabilities of the NA49 experiment at the CERN SPS
allow for a broad study of fluctuations and correlations in hadronic
interactions. In the first part recent results on event-by-event charge and p_t
fluctuations are presented. Charge fluctuations in central Pb+Pb reactions are
investigated at three different beam energies (40, 80, and 158 AGeV), while for
the p_t fluctuations the focus is put on the system size dependence at 158
AGeV. In the second part recent results on Bose Einstein correlations of h-h-
pairs in minimum bias Pb+Pb reactions at 40 and 158 AGeV, as well as of K+K+
and K-K- pairs in central Pb+Pb collisions at 158 AGeV are shown. Additionally,
other types of two particle correlations, namely pi p, Lambda p, and Lambda
Lambda correlations, have been measured by the NA49 experiment. Finally,
results on the energy and system size dependence of deuteron coalescence are
discussed.


title: Determination of the freeze-out temperature by the isospin thermometer

abstract:
  The high-resolution spectrometer FRS at GSI Darmstadt provides the full
isotopic and kinematical identification of fragmentation residues in
relativistic heavy-ion collisions. Recent measurements of the isotopic
distribution of heavy projectile fragments led to a very surprising new
physical finding: the residue production does not lose the memory of the N/Z of
the projectile ending up in a universal de-excitation corridor; an ordering of
the residues in relation to the neutron excess of the projectile has been
observed. These unexpected features can be interpreted as a new manifestation
of multifragmentation. We have found that at the last stage of the reaction the
temperature of the big clusters subjected to evaporation is limited to a
universal value. The thermometer to measure this limiting temperature is the
neutron excess of the residues.


title:
Energy Dependence of $\Lambda$ and $\bar{\Lambda}$ Production at
  CERN-SPS Energies

abstract:
  Rapidity distributions for $\Lambda$ and $\bar{\Lambda}$ hyperons in central
Pb-Pb collisions at 40, 80 and 158 A$\cdot$GeV and for ${\rm K}_{s}^{0}$ mesons
at 158 A$\cdot$GeV are presented. The lambda multiplicities are studied as a
function of collision energy together with AGS and RHIC measurements and
compared to model predictions. A different energy dependence of the
$\Lambda/\pi$ and $\bar{\Lambda}/\pi$ is observed. The $\bar{\Lambda}/\Lambda$
ratio shows a steep increase with collision energy. Evidence for a
$\bar{\Lambda}/\bar{\rm p}$ ratio greater than 1 is found at 40 A$\cdot$GeV.


title:
Baryon and antibaryon production in hadron-hadron and hadron-nucleus
  interactions

abstract:
  Cascade baryon and anti-baryon yields have been measured in p+p and p+A
collisions. After extraction of the projectile component in p+A interactions
close similarities with A+A collisions concerning the nuclear enhancement
factors are observed. In addition the importance of effects related to
projectile isospin and to net baryon stopping is pointed out.


title: Cross Section Limits for the $^{208}$Pb($^{86}$Kr,n)$^{293}$118 Reaction

abstract:
  In April-May, 2001, the previously reported experiment to synthesize element
118 using the $^{208}$Pb($^{86}$Kr,n)$^{293}$118 reaction was repeated. No
events corresponding to the synthesis of element 118 were observed with a total
beam dose of 2.6 x 10$^{18}$ ions. The simple upper limit cross sections (1
event) were 0.9 and 0.6 pb for evaporation residue magnetic rigidities of 2.00
$T m$ and 2.12 $T m$, respectively. A more detailed cross section calculation,
accounting for an assumed narrow excitation function, the energy loss of the
beam in traversing the target and the uncertainty in the magnetic rigidity of
the Z=118 recoils is also presented. Re-analysis of the primary data files from
the 1999 experiment showed the reported element 118 events are not in the
original data. The current results put constraints on the production cross
section for synthesis of very heavy nuclei in cold fusion reactions.


title:
Elastic and Raman scattering of 9.0 and 11.4 MeV photons from Au, Dy and
  In

abstract:
  Monoenergetic photons between 8.8 and 11.4 MeV were scattered elastically and
in elastically (Raman) from natural targets of Au, Dy and In.15 new cross
sections were measured. Evidence is presented for a slight deformation in the
197Au nucleus, generally believed to be spherical. It is predicted, on the
basis of these measurements, that the Giant Dipole Resonance of Dy is very
similar to that of 160Gd. A narrow isolated resonance at 9.0 MeV is observed in
In.


title:
Measurement of Spin Correlation Parameters A$_{NN}$, A$_{SS}$, and
  A_${SL}$ at 2.1 GeV in Proton-Proton Elastic Scattering

abstract:
  At the Cooler Synchrotron COSY/J\"ulich spin correlation parameters in
elastic proton-proton (pp) scattering have been measured with a 2.11 GeV
polarized proton beam and a polarized hydrogen atomic beam target. We report
results for A$_{NN}$, A$_{SS}$, and A_${SL}$ for c.m. scattering angles between
30$^o$ and 90$^o$. Our data on A$_{SS}$ -- the first measurement of this
observable above 800 MeV -- clearly disagrees with predictions of available of
pp scattering phase shift solutions while A$_{NN}$ and A_${SL}$ are reproduced
reasonably well. We show that in the direct reconstruction of the scattering
amplitudes from the body of available pp elastic scattering data at 2.1 GeV the
number of possible solutions is considerably reduced.


title:
Induced radioactivity problem for high-power heavy-ion accelerators -
  Experimental investigation and longtime predictions

abstract:
  Preliminary results on activation and dose rates of thick copper targets
irradiated with carbon ions at 0.1 GeV/A measured at the SIS-18 facility of
GSI, Darmstadt and on residual nuclide production cross sections from thin
copper and cobalt targets irradiated with carbon ions at 0.2 GeV/A measured at
the TWAC facility of ITEP, Moscow are presented and compared with calculations
by the Dubna version of the cascade model for nucleus-nucleus interactions
realized in the code CASCADE and by the Los Alamos version of the Quark-Gluon
String Model code LAQGSM merged with the Generalized Evaporation Model code
GEM2 by Furihata, LAQGSM+GEM2.


title:
Fission Parameters Measurements for Np, Pu, Am, and Cm Isotopes Inside a
  Salt Blanket Micromodel

abstract:
  The MAKET zero-power heavy water reactor has been used at ITEP to measure the
fission characteristics of the Np, Pu, Am, and Cm isotopes in the
0.52NaF+0.48ZrF_4 melt-filled salt blanket micromodel. The 237Np(n,f),
238Pu(n,f), 239Pu(n,f), 240Pu(n,f), 241Pu(n,f), 242m^Am(n,f), 243Cm(n,f),
245Cm(n,f), 247Cm(n,f), 238U(n,f), 238U(n,g), 235U(n,f) fission reaction rates
have been measured. The neutron spectrum in the isotope irradiation locations
was monitored by measuring the rates of the (235U(n,f), 238U(n,g), 55Mn(n,g),
63Cu(n,g), 176Lu(n,g), 197Au(n,g), 115In(n,n'), 27Al(n,4He), and 64Zn(n,p))
reactions whose cross sections have been commonly accepted. The measured
functionals are compared with the respective results of MCNP code simulation
obtained using the ENDF/B6 and JENDL3.2 neutron databases.


title: Liquid-vapor phase transition in nuclei or compound nucleus decay?

abstract:
  Recent analyses of multifragmentation in terms of Fisher's model and the
related construction of a phase diagram brings forth the problem of the true
existence of the vapor phase and the meaning of its associated pressure. Our
analysis shows that a thermal emission picture is equivalent to a Fisher-like
equilibrium description which avoids the problem of the vapor and explains the
recently observed Boltzmann-like distribution of the emission times. In this
picture a simple Fermi gas thermometric relation is naturally justified. Low
energy compound nucleus emission of intermediate mass fragments is shown to
scale according to Fisher's formula and can be simultaneously fit with the much
higher energy ISiS multifragmentation data.


title:
Comment on ``Entry Distribution, Fission Barrier, and Formation
  Mechanism of 254No''

abstract:
  A recent paper has reported the observation of the rotational band of 254No
for spins up to I=20, showing that the compound nucleus was formed and survived
fission decay at angular momenta I >= 20. We show that this survival is
consistent with the leading effects of angular momentum on the barrier height.


title: Charm and leptons

abstract:
  The present knowledge on charm and leptons is reviewed including the topics
discussed at this conference and the progress made since the last Quark Matter
conference. Special emphasis is placed on Jpsi production at the SPS which is
one of the highlights in the field.


title: Sub-threshold phi-meson yield in central 58Ni+58Ni collisions

abstract:
  The $\phi$-meson production cross section is measured for the first time at a
sub-threshold energy of 1.93 AGeV in \nuc{58}{Ni}+\nuc{58}{Ni} central
collisions. The $\phi$ data were obtained within the acceptance of the
CDC/Barrel subsystem of FOPI. For a sample of $4.7\cdot 10^6$ central events,
after background subtraction, 23 candidates were observed. Extensive GEANT
simulations of the detector performance are shown in a thorough comparison to
the real response, aiming at a good understanding of the apparatus and at a
trustable determination of the efficiencies, production probability and
possible systematic errors. A filter procedure is elaborated, which is meant to
facilitate the comparison of any theoretical calculation or new data with the
current ones. How to extrapolate the present value to a $\phi$-meson cross
section in $4\pi$ is also discussed. This result on pseudo-vector mesons can
now be compared to existing experimental knowledge for the same reaction at the
same incident energy for various outgoing channels, $K^+$ and $K^-$ included. A
significant fraction (at least 20%) of the $K^-$-mesons is originating in the
decay of the $\phi$, supporting the statement that the two channels are
strongly correlated.


title: Free energy and criticality in the nucleon pair breaking process

abstract:
  Experimental level densities for 171,172Yb, 166,167Er, 161,162Dy, and
148,149Sm are analyzed within the microcanonical ensemble. In the even isotopes
at excitation energies E < 2 MeV, the Helmholtz free energy F signals the
transition from zero to two quasiparticles. For E > 2 MeV, the odd and even
isotopes reveal a surprisingly constant F at a critical temperature Tc of appr.
0.5 MeV, indicating the continuous melting of nucleon Cooper pairs as function
of excitation energy.


title: NN Correlations Measured in 3He(e,e'pp)n

abstract:
  We have measured the $^3$He(e,e$'$pp)n{} reaction in the Jefferson Lab CLAS
with 2.2 and 4.4 GeV electrons. We looked at the energy distribution of events
with all three nucleons at high momentum (p > 250 MeV/c). This distribution has
peaks where two nucleons each have 20% or less of the energy transfer (ie: the
third or `leading' nucleon carries most of the kinetic energy). The angular
distribution of these two `fast' nucleons shows a very large back-to-back peak,
indicating the effect of correlations. While there is some theoretical
disagreement, experimental evidence, plus calculations at lower energy by W.
Glockle, indicates that these events are primarily sensitive to NN
correlations.


title: Leptonic Observables in Ultra-Relativistic Heavy Ion Collisions

abstract:
  We report on leptonic observables by the PHENIX experiment from data taken
during Run II at the Relativistic Heavy Ion Collider (RHIC). We show first
results on phi -> K+K-, e+e-, low and intermediate mass dielectron continuum,
single electrons from charm, and J/psi yields in proton-proton and Au-Au
collisions at sqrt{s_{NN}}=200 GeV.


title: Single leptons from heavy-flavor decays at RHIC

abstract:
  Inclusive transverse momentum spectra of single electrons from Au+Au
collisions have been measured at $\sqrt{s_{NN}}$ = 130 GeV and 200 GeV at
midrapidity by the PHENIX experiment at RHIC. After subtraction of background
from photon conversions and light hadron decays, the spectra appear consistent
with semileptonic decays of charmed particles.


title:
Study of the ^18F(p, alpha)^15O reaction for application to nova
  gamma-ray emission

abstract:
  The ^18F(p, alpha)^15O reaction is recognized as one of the most important
reaction for nova gamma-ray astronomy as it governs the early =< 511 keV
emission. However, its rate remains largely uncertain at nova temperatures due
to unknown low-energy resonance strengths. In order to better constrain this
reaction rate, we have studied the one-nucleon transfer reaction, D(^18F,p
alpha)^15N, at the CRC-RIB facility at Louvain La Neuve.


title: System size dependence of strangeness production at 158 AGeV

abstract:
  Strange particle production in A+A interactions at 158 AGeV is studied by the
CERN experiment NA49 as a function of system size and collision geometry.
Yields of charged kaons, phi and Lambda are measured and compared to those of
pions in central C+C, Si+Si and centrality-selected Pb+Pb reactions. An overall
increase of relative strangeness production with the size of the system is
observed which does not scale with the number of participants. Arguing that
rescattering of secondaries plays a minor role in small systems the observed
strangeness enhancement can be related to the space-time density of the primary
nucleon-nucleon collisions.


title:
Charge Fluctuations at Mid-Rapidity in Au+Au Collisions in the PHENIX
  Experiment at RHIC

abstract:
  Event-by-event fluctuations in the net charge and <pT> at mid-rapidity have
been studied in Au+Au collisions using the central tracking arms in the PHENIX
experiment at RHIC.


title: Summary of Results on Hard Probes

abstract:
  Results on observables related to hard scattering processes as presented at
this conference are reviewed. This includes in particular measurements related
to jet quenching, a phenomenon which has been predicted as a signature for the
hot and dense early phase of strongly interacting matter.


title: Results on Photon Production in Au+Au Collisions at RHIC

abstract:
  The status of the search for direct photons in Au+Au collisions at sqrt{s_NN}
= 130 GeV and sqrt{s_NN} = 200 GeV with the PHENIX experiment is presented.
Within errors, no excess of direct photons was found in a first analysis pass
done on a limited data set. Significantly reduced systematic and statistical
uncertainties are expected in future analyses.


title:
High pT pi0 Production and Angular Correlations in 158 AGeV p+A and
  Pb+Pb Collisions

abstract:
  Recent results of the WA98 experiment with p and Pb induced reactions at 158
AGeV are presented. Azimuthal gamma-gamma correlations at high pT were studied
in search for a signal of jet-like structures. A clear indication for
back-to-back correlations can be seen in p+A with a strong dependence on the pT
of the photons and the size of the system. In Pb+Pb collisions in plane
elliptic flow has been observed. Results on transverse mass spectra of neutral
pions measured at central rapidity are presented for impact parameter selected
Pb+Pb collisions. In going from peripheral to medium central collisions there
is a nuclear enhancement increasing with transverse mass similar to the Cronin
effect, while for very central collisions this enhancement appears to be weaker
than expected.


title: Generalized Isoscaling of Isotopic Distributions

abstract:
  Generalized isoscaling relationships are proposed that may permit one to
relate the isotopic distributions of systems that may not be at the same
temperature. The proposed relationships are applied to multifragmentation
excitation functions for central Kr+Nb and Ar+Sc collisions.