title:
Assessment of uncertainties in QRPA $0\nu\beta\beta$-decay nuclear
  matrix elements

abstract:
  The nuclear matrix elements $M^{0\nu}$ of the neutrinoless double beta decay
($0\nu\beta\beta$) of most nuclei with known $2\nu\beta\beta$-decay rates are
systematically evaluated using the Quasiparticle Random Phase Approximation
(QRPA) and Renormalized QRPA (RQRPA). The experimental $2\nu\beta\beta$-decay
rate is used to adjust the most relevant parameter, the strength of the
particle-particle interaction. New results confirm that with such procedure the
$M^{0\nu}$ values become essentially independent on the size of the
single-particle basis. Furthermore, the matrix elements are shown to be also
rather stable with respect to the possible quenching of the axial vector
strength parametrized by reducing the coupling constant $g_A$, as well as to
the uncertainties of parameters describing the short range nucleon
correlations. Theoretical arguments in favor of the adopted way of determining
the interaction parameters are presented. Furthermore, a discussion of other
implicit and explicit parameters, inherent to the QRPA method, is presented.
Comparison is made of the ways these factors are chosen by different authors.
It is suggested that most of the spread among the published $0\nu\beta\beta$
decay nuclear matrix elements can be ascribed to these choices.


title: Relativistic Harmonic Oscillator with Spin Symmetry

abstract:
  The eigenfunctions and eigenenergies for a Dirac Hamiltonian with equal
scalar and vector harmonic oscillator potentials are derived. Equal scalar and
vector potentials may be applicable to the spectrum of an antinucleion imbedded
in a nucleus. Triaxial, axially deformed, and spherical oscillator potentials
are considered. The spectrum has a spin symmetry for all cases and, for the
spherical harmonic oscillator potential, a higher symmetry analogous to the
SU(3) symmetry of the non-relativistic harmonic oscillator is discussed.


title:
Nuclear statistics, microcanonical or canonical? The physicists vs. the
  chemists approach

abstract:
  Nuclei are small and inhomogeneous. Multi-fragmented nuclei are even more
inhomogeneous and the fragments even smaller. System studied in chemical
thermodynamics (CTh) consist of several homogeneous macroscopic phases.
Evidently, macroscopic statistics as in Chemistry cannot and should not be
applied. Taking this serious, fascinating perspectives open for statistical
nuclear fragmentation.


title: Effects of particle-number conservation on heat capacity of nuclei

abstract:
  By applying the particle-number projection to the finite-temperature BCS
theory, the $S$-shaped heat capacity, which has recently been claimed to be a
fingerprint of the superfluid-to-normal phase transition in nuclei, is
reexamined. It is found that the particle-number (or number-parity) projection
gives $S$-shapes in the heat capacity of nuclei which look qualitatively
similar to the observed ones. These $S$-shapes are accounted for as effects of
the particle-number conservation on the quasiparticle excitations, and occur
even when we keep the superfluidity at all temperatures by assuming a constant
gap in the BCS theory. The present study illustrates significance of the
conservation laws in studying phase transitions of finite systems.


title:
Shell Model Predictions for Very Neutron-Rich Nuclei in 132SN Region :
  Interesting Features of Effective- Charge Revealed

abstract:
  Shell model studies have been done for very neutron - rich nuclei in the
range Z=50-55 and N=82-87. Good agreement of the theoretical level spectra with
the experimental one for N=82, 83 I and Te nuclei is shown. Then the results
for three very neutron-rich nuclei 137Sn and 136-137Sb have been presented. The
present calculation favour a 2- ground state for 136Sb instead of 1- identified
through beta decay.Interesting observation about the E2 effective charges for
this region has been discussed.


title: The Coester Line in Relativistic Mean Field Nuclear Matter

abstract:
  The Walecka model contains essentially two parameters that are associated
with the Lorentz scalar (S) and vector (V) interactions. These parameters are
related to a two-body interaction consisting of S and V, imposing the condition
that the two-body binding energy is fixed. We have obtained a set of different
values for the nuclear matter binding energies at equilibrium densities. We
investigated the existence of a linear correlation between $B_N$ and $\rho_0$,
claimed to be universal for nonrelativistic systems and usually known as the
Coester line, and found an approximate linear correlation only if $V?S$ remains
constant. It is shown that the relativistic content of the model, which is
related to the strength of $V?S$, is responsible for the shift of the Coester
line to the empirical region of nuclear matter saturation.


title: Mass and $K\Lambda$ coupling of $N^*(1535)$

abstract:
  Using resonance isobar model and effective Lagrangian approach, from recent
BES results on $J/\psi\to\bar pp\eta$ and $\psi\to\bar pK^+\Lambda$, we deduce
the ratio between effective coupling constants of $N^*(1535)$ to $K\Lambda$ and
$p\eta$ to be $R\equiv g_{N^*(1535)K\Lambda}/g_{N^*(1535)p\eta} =1.3\pm 0.3$.
With previous known value of $g_{N^*(1535)p\eta}$, the obtained new value of
$g_{N^*(1535)K\Lambda}$ is shown to reproduce recent $pp\to pK^+\Lambda$
near-threshold cross section data as well. Taking into account this large
$N^*K\Lambda$ coupling in the coupled channel Breit-Wigner formula for the
$N^*(1535)$, its Berit-Wigner mass is found to be around 1400 MeV, much smaller
than previous value of about 1535 MeV obtained without including its coupling
to $K\Lambda$. The implication on the nature of $N^*(1535)$ is discussed.


title: A HIC Primitive Spinodal Decomposition Signature

abstract:
  Evidence of a primitive spinodal decomposition has been obtained for central
Ni+Ni Heavy Ion Collision, since higher order charge correlations show a peak
when four fragments of size equal to 6 are produced with an excitation of 4.75
MeV. This can be considered as a signature of a primitive breakup in equal
sized fragments with a privileged fragment size. This computational result
confirms other experimental and theoretical evidences about spinodal
decompostion in HIC.


title: Quantum Phase Transitions in the U(5)-O(6) Large N limit

abstract:
  The U(5)-O(6) transitional behavior of the Interacting Boson Model in the
large N limit is revisited. Some low-lying energy levels, overlaps of the
ground state wavefunctions, B(E2) transition rate for the decay of the first
excited energy level to the ground state, and the order parameters are
calculated for different total numbers of bosons. The results show that
critical behaviors of these quantities are greatly enhanced with increasing of
the total number of bosons N, especially fractional occupation probability for
d bosons in the ground state, the difference between the expectation value of
n_d in the first excited 0^+ state and the ground state, and another quantity
related to the isomer shift behave similarly in both the O(6)-U(5) large N and
U(5)-SU(3) phase transitions.


title: The generalised relativistic Lindhard functions

abstract:
  We present here analytic expressions for the generalised Lindhard function,
also referred to as Fermi Gas polarisation propagator, in a relativistic
kinematic framework and in the presence of various resonances and vertices.
Particular attention is payed to its real part, since it gives rise to
substantial difficulties in the definition of the currents entering the
dynamics.


title: Ground state energy fluctuations in the Nuclear Shell Model

abstract:
  Statistical fluctuations of the nuclear ground state energies are estimated
using shell model calculations in which particles in the valence shells
interact through well defined forces, and are coupled to an upper shell
governed by random 2-body interactions. Induced ground-state energy
fluctuations are found to be one order of magnitude smaller than those
previously associated with chaotic components, in close agreement with
independent perturbative estimates based on the spreading widths of excited
states.


title:
Bulk and single-particle properties of hyperonic matter at finite
  temperature

abstract:
  Bulk and single-particle properties of hot hyperonic matter are studied
within the Brueckner-Hartree-Fock approximation extended to finite temperature.
The bare interaction in the nucleon sector is the Argonne V18 potential
supplemented with an effective three-body force to reproduce the saturating
properties of nuclear matter. The modern Nijmegen NSC97e potential is employed
for the hyperon-nucleon and hyperon-hyperon interactions. The effect of the
temperature on the in-medium effective interaction is found to be, in general,
very small and the single-particle potentials differ by at most 25% for
temperatures in the range from 0 to 60 MeV. The bulk properties of infinite
matter of baryons, either nuclear isospin symmetric or a beta-stable
composition which includes a non-zero fraction of hyperons, are obtained. It is
found that the presence of hyperons can modify the thermodynamical properties
of the system in a non-negligible way.


title: Rescattering Effects on Intensity Interferometry

abstract:
  We derive a general formula for the correlation function of two identical
particles with the inclusion of multiple elastic scatterings in the medium in
which the two particles are produced. This formula involves the propagator of
the particle in the medium. As illustration of the effect we apply the formula
to the special case where the scatterers are static, localized 2-body
potentials. In this illustration both $R^2_{\rm side}$ and $R^2_{\rm out}$ are
increased by an amount proportional to the square of the spatial density of
scatterers and to the differential cross section. Specific numbers are used to
show the expected magnitude of the rescattering effect on kaon interferometry.


title: The K^- \alpha scattering length and the reaction dd \to \alpha K^+ K^-

abstract:
  We present predictions for the the K^- \alpha scattering length obtained
within the framework of the multiple scattering approach. Evaluating the pole
position of the K^- \alpha scattering amplitude within the zero range
approximation, we find a loosely bound K^- \alpha state with a binding energy
of E_R = -2 ... -7 MeV and a width \Gamma_R = 11 ... 18 MeV. We propose to
measure the K^- \alpha scattering length through the final state interaction
between the \alpha and K^- meson produced in the reaction dd \to \alpha K^+
K^-. It is found that the K^-\alpha invariant mass distribution from this
reaction at energies near the threshold provides a new tool to determine the
s-wave K^- \alpha scattering length.


title: Dynamical study of spinodal decomposition in heavy ion collisions

abstract:
  Nuclei undergo a phase transition in nuclear reactions according to a caloric
curve determined by the amount of entropy. Here, the generation of entropy is
studied in relation to the size of the nuclear system.


title:
Renormalized relativistic Hartree-Bogoliubov equations with a zero-range
  pairing interaction

abstract:
  A recently introduced scheme for the renormalization of the
Hartree-Fock-Bogoliubov equations in the case of zero-range pairing interaction
is extended to the relativistic Hartree-Bogoliubov model. A density-dependent
strength parameter of the zero-range pairing is adjusted in such a way that the
renormalization procedure reproduces the empirical $^1S_0$ pairing gap in
isospin-symmetric nuclear matter. The model is applied to the calculation of
ground-state pairing properties of finite spherical nuclei.


title: Half-lives of rp-process waiting point nuclei

abstract:
  We give results of microscopic calculations for the half-lives of various
proton-rich nuclei in the mass region A=60-90, which are involved in the
astrophysical rp-process, and which are needed as input parameters of numerical
simulations in Nuclear Astrophysics. The microscopic formalism consists of a
deformed QRPA approach that involves a selfconsistent quasiparticle deformed
Skyrme Hartree-Fock basis and residual spin-isospin separable forces in both
the particle-hole and particle-particle channels. The strength of the
particle-hole residual interaction is chosen to be consistent with the Skyrme
effective force and mean field basis, while that of the particle-particle is
globally fixed to 0.07 MeV after a judicious choice from comparison to
experimental half-lives. We study and discuss the sensitivity of the half-lives
to deformation and residual interactions.


title: Calculating the nuclear mass at finite angular momenta

abstract:
  Mean field methods to calculate the nuclear mass are extended into the high
spin regime to calculate the nuclear binding energy as a function of proton
number, neutron number and angular momentum. Comparing the trend as a function
of mass number for a selection of high-spin states, a similar agreement between
theory and experiment is obtained as for ground state masses.


title:
New Relations for Coefficients of Fractional Parentage--the Redmond
  Recursion Formula with Seniority

abstract:
  We find a relationship between coefficients of fractional parentage (cfp)
obtained on the one hand from the principal parent method and on the other hand
from a seniority classification. We apply this to the Redmond recursion formula
which relates $n \to n+1$ cfp's to $n-1 \to n$ cfp's where the principal parent
classification is used. We transform this to the seniority scheme. Our formula
differs from the Redmond formula inasmuch as we have a sum over the possible
seniorities for the $n \to n+1$ cfp's, whereas Redmond has only one term.


title:
Approximate treatment of electron Coulomb distortion in quasielastic
  (e,e') reactions

abstract:
  In this paper we address the adequacy of various approximate methods of
including Coulomb distortion effects in (e,e') reactions by comparing to an
exact treatment using Dirac-Coulomb distorted waves. In particular, we examine
approximate methods and analyses of (e,e') reactions developed by Traini et al.
using a high energy approximation of the distorted waves and phase shifts due
to Lenz and Rosenfelder. This approximation has been used in the separation of
longitudinal and transverse structure functions in a number of (e,e')
experiments including the newly published 208Pb(e,e') data from Saclay. We find
that the assumptions used by Traini and others are not valid for typical (e,e')
experiments on medium and heavy nuclei, and hence the extracted structure
functions based on this formalism are not reliable. We describe an improved
approximation which is also based on the high energy approximation of Lenz and
Rosenfelder and the analyses of Knoll and compare our results to the Saclay
data. At each step of our analyses we compare our approximate results to the
exact distorted wave results and can therefore quantify the errors made by our
approximations. We find that for light nuclei, we can get an excellent
treatment of Coulomb distortion effects on (e,e') reactions just by using a
good approximation to the distorted waves, but for medium and heavy nuclei
simple additional ad hoc factors need to be included. We describe an explicit
procedure for using our approximate analyses to extract so-called longitudinal
and transverse structure functions from (e,e') reactions in the quasielastic
region.


title: Approximate Coulomb distortion effects in (e,e'p) reactions

abstract:
  In this paper we apply a well-tested approximation of electron Coulomb
distortion effects to the exclusive reaction (e,e'p) in the quasielastic
region. We compare the approximate treatment of Coulomb distortion effects to
the exact distorted wave Born approximation evaluated by means of partial wave
analysis to gauge the quality of our approximate treatment. We show that the
approximate M\"oller potential has a plane-wave-like structure and hence
permits the separation of the cross section into five terms which depend on
bilinear products of transforms of the transition four current elements. These
transforms reduce to Fourier transforms when Coulomb distortion is not present,
but become modified with the inclusion of Coulomb distortion. We investigate
the application of the approximate formalism to a model of 208Pb(e,e'p) using
Dirac-Hartree single particle wave functions for the ground state and
relativistic optical model wave functions for the continuum proton. We show
that it is still possible to extract, albeit with some approximation, the
various structure functions from the experimentally measured data even for
heavy nuclei.


title: Entropy and Size in HIC

abstract:
  Distinct entropy definitions have been used to obtain an inverse correlation
between the residual size and entropy for Heavy Ion Collisions. This explains
the existence of several temperatures for different residual size bins, as
reported elsewhere (Natowitz et. al., 2002). HIC collisions were simulated
using binary interaction LATINO model where Pandharipande potential replicates
internucleonic interaction. System temperature is defined as the temperature
obtained when Kinetic Gas Theory is applied to the nucleons in the participant
region. Fragments are detected with an Early Cluster Recognition Algorithm that
optimizes the partitions in energy space.


title:
Investigation of Zero-Sound Dispersion Equation in the Complex Plane of
  Frequency

abstract:
  The known solutions to the zero-sound dispersion equation are considered as
placed on the physical and unphysical sheets in the complex plane of frequency.


title:
Masses, Deformations and Charge Radii--Nuclear Ground-State Properties
  in the Relativistic Mean Field Model

abstract:
  We perform a systematic study of the ground-state properties of all the
nuclei from the proton drip line to the neutron drip line throughout the
periodic table employing the relativistic mean field model. The TMA parameter
set is used for the mean-field Lagrangian density, and a state-dependent BCS
method is adopted to describe the pairing correlation. The ground-state
properties of a total of 6969 nuclei with $Z,N\ge 8$ and $Z\le 100$ from the
proton drip line to the neutron drip line, including the binding energies, the
separation energies, the deformations, and the rms charge radii, are calculated
and compared with existing experimental data and those of the FRDM and HFB-2
mass formulae. This study provides the first complete picture of the current
status of the descriptions of nuclear ground-state properties in the
relativistic mean field model. The deviations from existing experimental data
indicate either that new degrees of freedom are needed, such as triaxial
deformations, or that serious effort is needed to improve the current
formulation of the relativistic mean field model.


title:
Quantum interferences in the $\gamma N \to e^+e^- N$ reaction close to
  the vector meson production threshold

abstract:
  The exclusive photoproduction of $e^+e^-$ pairs from nucleons close to the
vector meson production threshold ($1.4<\sqrt s <1.8$ GeV) results from two
main processes: the emission of Bethe-Heitler pairs and the photoproduction of
$\rho^0$- and $\omega$-mesons decaying into $e^+e^-$ pairs. The Bethe-Heitler
amplitudes are purely electromagnetic and reflect mostly the nucleon magnetic
structure. The $\gamma N\to e^+e^- N$ amplitudes arising from vector meson
production and decay are derived from $\gamma N\to \rho^0 N$ and $\gamma N \to
\omega N$ amplitudes supplemented by the Vector Meson Dominance assumption. The
vector meson photoproduction amplitudes are calculated using a relativistic and
unitary coupled-channel approach to meson-nucleon scattering. They depend
sensitively on the coupling of vector fields to baryon resonances. The $\gamma
N \to e^+e^- N$ differential cross sections display interference patterns. The
interference of Bethe-Heitler pair production with vector meson $e^+e^-$ decay
is quite small in the domain of validity of our model for all angles of the
emitted $e^+e^-$ pair. The interference of $\rho^0$- and $\omega$-mesons in the
$e^+e^-$ channel can be large. It is constructive for the $\gamma p \to e^+e^-
p$ reaction and destructive for the $\gamma n \to e^+e^- n$ reaction. We
discuss the shape and magnitude of the $e^+e^-$ pair spectra produced in the
$\gamma p \to e^+e^- p$ and $\gamma n \to e^+e^- n$ reactions as functions of
the pair emission angle and of the total center of mass energy $\sqrt s$.


title:
Relativistic Heavy-Ion Collisions within 3-Fluid Hydrodynamics: Hadronic
  Scenario

abstract:
  A 3-fluid hydrodynamic model for simulating relativistic heavy-ion collisions
is introduced. Alongside with two baryon-rich fluids, the new model considers
time-delayed evolution of a third, baryon-free (i.e. with zero net baryonic
charge) fluid of newly produced particles. Its evolution is delayed due to a
formation time, during which the baryon-free fluid neither thermalizes nor
interacts with the baryon-rich fluids. After the formation it starts to
interact with the baryon-rich fluids and quickly gets thermalized. Within this
model with pure hadronic equation of state, a systematic analysis of various
observables at incident energies between few and about 160A GeV has been done
as well as comparison with results of transport models. We have succeeded to
reasonably reproduce a great body of experimental data in the incident energy
range of E_{lab} = (1-160)A GeV. The list includes proton and pion rapidity
distributions, proton transverse-mass spectra, rapidity distributions of Lambda
and antiLambda hyperons, elliptic flow of protons and pions (with the exception
of proton v2 at 40A GeV), multiplicities of pions, positive kaons, phi-mesons,
hyperons and antihyperons, including multi-strange particles. This agreement is
achieved on the expense of substantial enhancement of the interflow friction as
compared to that estimated proceeding from hadronic free cross sections.
However, we have also found out certain problems. The calculated yield of K^-
is approximately by a factor of 1.5 higher than that in the experiment. We have
also failed to describe directed transverse flow of protons and pion at E_{lab}
> 40A GeV. This failure apparently indicates that the used EoS is too hard and
thereby leaves room for a phase transition.


title:
Microscopic analysis of K^+-nucleus elastic scattering based on K^+N
  phase shifts

abstract:
  We investigate $K^{+}$-nucleus elastic scattering at intermediate energies
within a microscopic optical model approach. To this effect we use the current
$K^{+}$-nucleon {\it (KN)} phase shifts from the Center for Nuclear Studies of
the George Washington University as primary input. First, the {\it KN} phase
shifts are used to generate Gel'fand-Levitan-Marchenko real and local inversion
potentials. Secondly, these potentials are supplemented with a short range
complex separable term in such a way that the corresponding unitary and
non-unitary {\it KN} $S$ matrices are exactly reproduced. These {\it KN}
potentials allow to calculate all needed on- and off-shell contributions of the
$t$ matrix,the driving effective interaction in the full-folding
$K^{+}$-nucleus optical model potentials reported here. Elastic scattering of
positive kaons from $^{6}$Li, $^{12}$C, $^{28}$Si and $^{40}$Ca are studied at
beam momenta in the range 400-1000 MeV/{$c$}, leading to a fair description of
most differential and total cross section data. To complete the analysis the
full-folding model, three kinds of simpler $t\rho$ calculations are considered
and results discussed. We conclude that conventional medium effects, in
conjunction with a proper representation of the basic {\it KN} interaction are
essential for the description of $K^{+}$-nucleus phenomena.


title:
Two center shell model with Woods-Saxon potentials: adiabatic and
  diabatic states in fusion

abstract:
  A realistic two-center shell model for fusion is proposed, which is based on
two spherical Woods-Saxon potentials and the potential separable expansion
method. This model describes the single-particle motion in a fusing system. A
technique for calculating stationary diabatic states is suggested which makes
use of the formal definition of those states, i.e., they minimize the radial
nonadiabatic coupling between the adiabatic states. As an example the system
$^{16}$O + $^{40}$Ca $\to$ $^{56}$Ni is discussed.


title:
Density inhomogeneities in heavy ion collisions around the critical
  point

abstract:
  We study the hydrodynamical expansion of a hot and baryon-dense quark fluid
coupled to classical real-time evolution of the long wavelength modes of the
chiral field. Significant density inhomogeneities develop dynamically when the
transition to the symmetry-broken state occurs. We find that the amplitude of
the density inhomogeneities is larger for expansion trajectories crossing the
line of first-order transitions than for crossovers, which could provide some
information on the location of a critical point. A few possible experimental
signatures for inhomogeneous decoupling surfaces are mentioned briefly.


title: Strange form factors and Chiral Perturbation Theory

abstract:
  We review the contributions of Chiral Perturbation Theory to the theoretical
understanding or not-quite-yet-understanding of the nucleon matrix elements of
the strange vector current.


title:
Influence of the Electronic Chaotic Motion on the Fusion Dynamics at
  Astrophysical Energies

abstract:
  We perform semi-classical molecular dynamics simulations of screening by
bound electrons in low energy nuclear reactions. In our simulations quantum
effects corresponding to the Pauli and Heisenberg principle are enforced by
constraints. In addition to the well known adiabatic and sudden limits, we
propose a new "dissipative limit" which is expected to be important not only at
high energies but in the extremely low energy region. The dissipative limit is
associated with the chaotic behavior of the electronic motion. It affects also
the magnitude of the enhancement factor. We discuss also numerical experiments
using polarized targets. The derived enhancement factors in our simulation are
in agreement with those extracted within the $R$-matrix approach.


title: On the Relativistic Description of the Nucleus

abstract:
  We present here a formalism able to generalise to a relativistically
covariant scheme the standard nuclear shell model. We show that, using some
generalised nuclear Green's functions and their Lehmann representation we can
define the relativistic equivalent of the non relativistic single particle wave
function (not loosing, however, the physical contribution of other degrees of
freedom, like mesons and antinucleons). It is shown that the mass operator
associated to the nuclear Green's function can be approximated with the
equivalent of a shell-model potential and that the corresponding ``single
particle wave functions'' can be easily derived in a specified frame of
reference and then boosted to any other system, thus fully restoring the
Lorentz covariance


title: Correlator Analysis of Multiparticle Events

abstract:
  A procedure for the evaluation of correlators of any order in a reasonable
computer time is presented. Connection between correlators and fluctuations of
the event mean values of observables is discussed. Extension of the procedure
to event-by-event approach is suggested. The usefulness of the method is
demonstrated using the events simulated within various models of multipaticle
production.


title:
Progress Towards Determining the Density Dependence of the Nuclear
  Symmetry Energy Using Heavy-Ion Reactions

abstract:
  The latest development in determining the density dependence of the nuclear
symmetry energy using heavy-ion collisions is reviewed. Within the IBUU04
version of an isospin- and momentum-dependent transport model using a modified
Gogny effective interaction, recent experimental data from NSCL/MSU on isospin
diffusion are found to be consistent with a nuclear symmetry energy of
$E_{sym}(\rho)\approx 31.6(\rho /\rho_{0})^{1.05}$ at subnormal densities.
Predictions on several observables sensitive to the density dependence of the
symmetry energy at supranormal densities accessible at GSI and the planned Rare
Isotope Accelerator (RIA) are also made.


title: Proposal for a High Energy Nuclear Database

abstract:
  We propose to develop a high-energy heavy-ion experimental database and make
it accessible to the scientific community through an on-line interface. This
database will be searchable and cross-indexed with relevant publications,
including published detector descriptions. Since this database will be a
community resource, it requires the high-energy nuclear physics community's
financial and manpower support. This database should eventually contain all
published data from Bevalac, AGS and SPS to RHIC and LHC energies,
proton-proton to nucleus-nucleus collisions as well as other relevant systems,
and all measured observables. Such a database would have tremendous scientific
payoff as it makes systematic studies easier and allows simpler benchmarking of
theoretical models to a broad range of old and new experiments. Furthermore,
there is a growing need for compilations of high-energy nuclear data for
applications including stockpile stewardship, technology development for
inertial confinement fusion and target and source development for upcoming
facilities such as the Next Linear Collider. To enhance the utility of this
database, we propose periodically performing evaluations of the data and
summarizing the results in topical reviews.


title: The Hagedorn thermostat

abstract:
  A system H with a Hagedorn-like mass spectrum imparts its unique temperature
TH to any other system coupled to it. An H system radiates particles in
preexisting physical and chemical equilibrium. These particles form a saturated
vapor at temperature TH. This coexistence describes a first order phase
transition. An H system is nearly indifferent to fragmentation into smaller H
systems. A lower mass cut-off in the spectrum does not significantly alter the
general picture

categories: nucl-th cond-mat.stat-mech hep-ph nucl-ex


title: Equation of State and Collective Dynamics

abstract:
  This talk summarizes the present status of a program to quantitatively relate
data from the Relativistic Heavy Ion Collider (RHIC) on collective expansion
flow to the Equation of State (EOS) of hot and dense strongly interacting
matter, including the quark-gluon plasma and the quark-hadron phase transition.
The limits reached with the present state of the art and the next steps
required to make further progress will both be discussed.


title:
Strange magnetic moment of the nucleon and SU(3) breaking: group
  theoretical approach

abstract:
  An extended group-theoretical approach to magnetic moments of the octet
baryons is proposed with the aim of extracting the strange magnetic moment of
the nucleon. Special attention is given to flavor SU(3) breaking. In this
approach, isoscalar and isovector magnetic moments are treated separately in
view of their different behavior under SU(3) breaking. We conclude that the
anomalous magnetic moment associated with the flavor singlet current is small.
Together with the small isoscalar anomalous magnetic moment of the nucleon,
this implies suppression of the strange magnetic moment of the proton which is
found to be small and positive, mu^(s) = (0.16 \pm 0.03) mu_N in units of the
nuclear magneton.


title:
Probing Correlated Ground States with Microscopic Optical Model for
  Nucleon Scattering off Doubly-Closed-Shell Nuclei

abstract:
  The RPA long range correlations are known to play a significant role in
understanding the depletion of single particle-hole states observed in (e, e')
and (e, e'p) measurements. Here the Random Phase Approximation (RPA) theory,
implemented using the D1S force is considered for the specific purpose of
building correlated ground states and related one-body density matrix elements.
These may be implemented and tested in a fully microscopic optical model for NA
scattering off doubly-closed-shell nuclei. A method is presented to correct for
the correlations overcounting inherent to the RPA formalism. One-body density
matrix elements in the uncorrelated (i.e. Hartree-Fock) and correlated (i.e.
RPA) ground states are then challenged in proton scattering studies based on
the Melbourne microscopic optical model to highlight the role played by the RPA
correlations. Effects of such correlations which deplete the nuclear matter at
small radial distance (r $<$ 2 fm) and enhance its surface region, are getting
more and more sizeable as the incident energy increases. Illustrations are
given for proton scattering observables measured up to 201 MeV for the
$^{16}$O, $^{40}$Ca, $^{48}$Ca and $^{208}$Pb target nuclei. Handling the RPA
correlations systematically improves the agreement between scattering
predictions and data for energies higher than 150 MeV.


title:
Analytic Formulae for the Matrix Elements of the Transition Operators in
  the Symplectic Extension of the Interacting Vector Boson Model

abstract:
  The tensor properties of all the generators of Sp(12,R) - the group of
dynamical symmetry of the Interacting Vector Boson Model (IVBM), are given with
respect to the reduction chain Sp(12,R) $\supset $ U(6) $\supset $ U(3) x U(2)
$\supset $ O(3) x U(1). Matrix elements of the basic building blocks of the
model are evaluated in symmetry adapted basis along the considered chain. As a
result of this, the analytic form of the matrix elements of any operator in the
enveloping algebra of the Sp(12,R), defining a certain transition operator, can
be calculated. The procedure allows further applications of the symplectic IVBM
for the description of transition probabilities between nuclear collective
states.


title: Nuclear Corrections to Hyperfine Structure in Light Hydrogenic Atoms

abstract:
  Hyperfine intervals in light hydrogenic atoms and ions are among the most
accurately measured quantities in physics. The theory of QED corrections has
recently advanced to the point that uncalculated terms for hydrogenic atoms and
ions are probably smaller than 0.1 parts per million (ppm), and the experiments
are even more accurate. The difference of the experiments and QED theory is
interpreted as the effect on the hyperfine interaction of the (finite) nuclear
charge and magnetization distributions, and this difference varies from tens to
hundreds of ppm. We have calculated the dominant component of the 1s hyperfine
interval for deuterium, tritium and singly ionized helium, using modern
second-generation potentials to compute the nuclear component of the hyperfine
splitting for the deuteron and the trinucleon systems. The calculated nuclear
corrections are within 3% of the experimental values for deuterium and tritium,
but are about 20% discrepant for singly ionized helium. The nuclear corrections
for the trinucleon systems can be qualitatively understood by invoking SU(4)
symmetry.


title:
Evolution of spectral properties along the O(6)-U(5) transition in the
  interacting boson model. I. Level dynamics

abstract:
  We investigate the evolution of quantal spectra and the corresponding wave
functions along the [O(6)-U(5)]$\supset$O(5) transition of the interacting
boson model. The model is integrable in this regime and its ground state passes
through a second-order structural phase transition. We show that the whole
spectrum as a function of the Hamiltonian control parameter, as well as
structures of all excited states, exhibit rather organized and correlated
behaviors, that provide deeper insight into the nature of this transitional
path.


title:
Evolution of spectral properties along the O(6)-U(5) transition in the
  interacting boson model. II. Classical trajectories

abstract:
  This article continues our previous study of level dynamics in the
[O(6)-U(5)]$\supset$O(5) transition of the interacting boson model
[nucl-th/0504016] using the semiclassical theory of spectral fluctuations. We
find classical monodromy, related to a singular bundle of orbits with infinite
period at energy E=0, and bifurcations of numerous periodic orbits for E>0. The
spectrum of allowed ratios of periods associated with beta- and
gamma-vibrations exhibits an abrupt change around zero energy. These findings
explain anomalous bunching of quantum states in the E$\approx$0 region, which
is responsible for the redistribution of levels between O(6) and U(5)
multiplets.


title:
Valence pairing, core deformation and the development of two-neutron
  halos

abstract:
  We explore the evolution of the structure of the ground state of a nucleus
with two valence nucleons as the system approaches the two particle threshold.
We use a three-body model of $core+n+n$ where the core is deformed and allowed
to excite. We find that both NN correlations and correlations due to
deformation/excitation of the core inhibit the formation of halos. Our results
suggest that it is unlikely to find halo nuclei on the dripline of deformed
nuclei.


title:
Spin-dependent structure functions in nuclear matter and the polarized
  EMC effect

abstract:
  An excellent description of both spin-independent and spin-dependent quark
distributions and structure functions has been obtained with a modified
Nambu-Jona-Lasinio model, which is free of unphysical thresholds for nucleon
decay into quarks - hence incorporating an important aspect of confinement. We
utilize this model to investigate nuclear medium modifications to structure
functions and find that we are readily able to reproduce both nuclear matter
saturation and the experimental F^A_2N / F_2N ratio, that is, the EMC effect.
Applying this framework to determine g^A_1p, we find that the ratio g^A_1p /
g_1p differs significantly from 1, with the quenching caused by the nuclear
medium being about twice that of the spin-independent case. This represents an
exciting result, which if confirmed experimentally, will reveal much about the
quark structure of nuclear matter.


title: The phases of isospin asymmetric matter in the two flavor NJL model

abstract:
  We investigate the phase diagram of isospin asymmetric matter at T=0 in the
two flavor Nambu-Jona-Lasinio model. Our approach describes the single nucleon
as a confined quark-diquark state, the saturation properties of nuclear matter
at normal densities, and the phase transition to normal or color
superconducting quark matter at higher densities. The resulting equation of
state of charge neutral matter is discussed.


title:
Polarization effects in the reaction $\bar p+p\to e^++e^-$ in presence
  of two-photon exchange

abstract:
  Polarization observables for the reaction $\bar p+p\to e^++e^-$ are given in
terms of three independent complex amplitudes, in presence of two photon
exchange. General expressions for the differential cross section and the
polarization observables are given and model independent properties are
derived. Polarization effects depending on the polarization of the antiproton
beam, the target and of the electron in the final state, have been calculated.


title: Hydrodynamical evolution of dissipative QGP fluid

abstract:
  In the framework of the Mueller-Israel-Stewart theory of dissipative fluid
dynamics, we have studied the space-time evolution of a QGP fluid. For
simplicity, we have considered shear viscosity only and neglected bulk
viscosity and heat conductivity. Shear viscosity opposes the expansion and
cooling of the fluid. As a result, the lifetime of the fluid is extended. We
also find that the parton $p_T$ distribution is considerably flattened.


title: Kaon production and propagation at intermediate relativistic energies

abstract:
  We systematically study $K^+$ observables in nucleus-nucleus collisions at
1-2 A GeV within the Boltzmann-Uehling-Uhlenbeck (BUU) transport model. We
compare our calculations with the KaoS data on the kaon multiplicities and
spectra. In addition, the kaon collective flow is computed and compared with
the FOPI and KaoS data. We show, that the elliptic kaon flow measured recently
by the KaoS Collaboration is best described by using the Brown-Rho
parametrization of the kaon potential ($U_K(\rho_0) \simeq 30$ MeV).


title:
The Lipkin Model in the su(M+1)-Algebra for Many-Fermion System and its
  Counterpart in the Schwinger Boson Representation

abstract:
  Following the Schwinger boson representation for the su(M+1)- and the
su(N,1)-algebra presented by two of the present authors (J. da P. and M. Y.)
and Kuriyama, a possible counterpart of the Lipkin model in the su(M+1)-algebra
formulated in the fermion space is presented. The free vacuum, which plays a
fundamental role in the conventional treatment of the Lipkin model, is
generalized in a quite natural way, and further, the excited state generating
operators such as the particle-hole pairs are also given in a natural scheme.
As concrete examples, the cases of the su(2)-, su(3)- and the su(4)-algebra are
discussed. Especially, the case of the su(4)-algebra is investigated in detail
in relation to the nucleon pairing correlations and the high temperature
superconductivity.


title:
Is isospin I=2 assignment preferable for d_1^*(1956) resonance candidate
  seen in reaction pp-> 2 gamma X below pion threshold ?

abstract:
  We compare the virtues of two options for the isospin (I=1 or 2) of the
apparently exotic dibarion resonance d_1^*(1956), as it is noticed by the
DIB2gamma Collaboration (JINR) in the reaction pp -> 2 gamma X below the pion
threshold, and using recent results following from the RMC Collaboration
(TRIUMF) measurement of the relative probability of the double-photon pion
capture in the pi-mesic deuterium atoms.


title:
Level density of a Fermion gas: average growth, fluctuations,
  universality

abstract:
  It has been shown by H. Bethe more than 70 years ago that the number of
excited states of a Fermi gas grows, at high excitation energies $Q$, like the
exponential of the square root of $Q$. This result takes into account only the
average density of single particle (SP) levels near the Fermi energy. It
ignores two important effects, namely the discreteness of the SP spectrum, and
its fluctuations. We show that the discreteness of the SP spectrum gives rise
to smooth finite--$Q$ corrections. Mathematically, these corrections are
associated to the problem of partitions of an integer. On top of the smooth
growth of the many--body density of states there are, generically,
oscillations. An explicit expression of these oscillations is given. Their
properties strongly depend on the regular or chaotic nature of the SP motion.
In particular, we analyze their typical size, temperature dependence and
probability distribution, with emphasis on their universal aspects.


title: Bimodality as a signal of Liquid-Gas phase transition in nuclei?

abstract:
  We use the HIPSE (Heavy-Ion Phase-Space Exploration) Model to discuss the
origin of the bimodality in charge asymmetry observed in nuclear reactions
around the Fermi energy. We show that it may be related to the important
angular momentum (spin) transferred into the quasi-projectile before secondary
decay. As the spin overcomes the critical value, a sudden opening of decay
channels is induced and leads to a bimodal distribution for the charge
asymmetry. In the model, it is not assigned to a liquid-gas phase transition
but to specific instabilities in nuclei with high spin. Therefore, we propose
to use these reactions to study instabilities in rotating nuclear droplets.


title: Hadron Production and Phase Changes in Relativistic Heavy Ion Collisions

abstract:
  We study soft hadron production in relativistic heavy ion collisions in a
wide range of reaction energy, 4.8 GeV <sqrt{s_ NN}<200 GeV, and make
predictions about yields of particles using the statistical hadronization
model. In fits to experimental data, we obtain both statistical parameters as
well as physical properties of the hadron source. We identify the properties of
the fireball at the critical energy threshold, 6.26 GeV < sqrt{s_NN}^cr} <7.61
GeV, delineating for higher energies hadronization of an entropy rich phase. In
terms of the chemical composition, one sees a phase which at low energy is
chemically under-saturated, and which turns into a chemically over-saturated
state persisting up to the maximum accessible energy. Assuming that there is no
change in physical mechanisms in the energy range 15>sqrt{s_NN} \ge 200 GeV, we
use continuity of particle yields and statistical parameters to predict the
hadron production at sqrt{s_NN}=62.4 GeV, and obtain total yields of hadrons at
sqrt{s_NN}=130 GeV. We consider, in depth, the pattern we uncover within the
hadronization condition, and discuss possible mechanisms associated with the
identified rapid change in system properties at sqrt{s_NN ^cr}. We propose that
the chemically over-saturated 2+1 flavor hadron matter system undergoes a 1st
order phase transition.


title:
Relation of Strangeness Nuggets to Strangeness Condensation and the
  Maximum Mass of Neutron Stars

abstract:
  Combining the recent experimental indications of density dependence in the
pion decay constant $f_\pi^\star$ and the $\omega$ meson mass $m_\omega^\star$
and the discovery of $S^0 (3115)$ and other "strange nuggets" with the vector
manifestation of chiral symmetry in hidden local symmetry proposed by Harada
and Yamawaki, we show that the mechanism responsible for dense strangeness
nuggets can be related to that responsible for kaon condensation in
neutron-star matter. We suggest that this relation assures kaon condensation at
a density $\sim$ three times nuclear matter density which supports the
Brown-Bethe scenario for the $M_{\rm NS}^{max} \simeq 1.5\msun$. This low
$M_{\rm NS}^{\rm max}\sim 1.5\msun$ has major consequences in astrophysics,
especially for the merging rate of compact stellar objects.


title:
Antiproton-nucleus potentials from global fits to antiprotonic X-rays
  and radiochemical data

abstract:
  We report on global fits of optical-model parameters to 90 data points for
$\bar p$ X-rays and 17 data points of radiochemical data put together. With the
help of separate fits to the two kinds of data it is possible to determine
phenomenologically the radial region where the absorption of antiprotons takes
place and to obtain neutron densities which represent the average behaviour
over the periodic table. A finite-range attractive and absorptive $\bar
p$-nuclear isoscalar potential fits the data well. Self-consistent dynamical
calculations within the RMF model demonstrate that the polarization of the
nucleus by the {\it atomic} antiproton is negligible.


title:
Influence of $NN$-rescattering effect on the photon asymmetry of
  $d(\vec{\gamma},\pi^-)pp$ reaction

abstract:
  The influence of final-state $NN$-rescattering on the beam asymmetry $\Sigma$
for linearly polarized photons in $\pi^-$ photoproduction on the deuteron in
the energy range from $\pi$-threshold through the $\Delta$(1232)-resonance has
been investigated. Numerical results for this spin observable are predicted and
compared with recent experimental data from the LEGS Spin collaboration.
Final-state $NN$-rescattering is found to be quite important and leads to a
better agreement with existing experimental data. Furthermore, the differences
with other theoretical models have been discussed.


title: Aspects of particle production in isospin asymmetric matter

abstract:
  The production/absorption rate of particles in compressed and heated
asymmetric matter is studied using a Relativistic Mean Field (RMF) transport
model with an isospin dependent collision term. Just from energy conservation
in the elementary production/absorption processes we expect to see a strong
dependence of the yields on the basic Lorentz structure of the isovector
effective interaction, due to isospin effects on the scalar and vector
self-energies of the hadrons. This will be particularly evident for the ratio
of the rates of particles produced with different charges: results are shown
for \pi(+)/\pi(-), K(+)/K(0) yields. In order to simplify the analysis we
perform RMF cascade simulations in a box with periodic boundary conditions. In
this way we can better pin down all such fine relativistic effects in particle
production, that could likely show up even in realistic heavy ion collisions.
In particular, K(+,0) production is expected to be directly related to the high
density behaviour of the symmetry energy, since kaons are produced very early
during the high density stage of the collision and their mean free path is
rather large. We show that the K(+)/K(0) ratio reflects important isospin
contributions on the production rates just because of the large sensitivity
around the threshold. The results are very promising for the possibility of a
direct link between particle production data in exotic Heavy Ion Collisions and
the isospin dependent part of the Equation of State at high baryon densities.


title: Chiral dynamics of baryon resonances and hadrons in a nuclear medium

abstract:
  In these lectures I make an introduction to chiral unitary theory applied to
the meson baryon interaction and show how several well known resonances are
dynamically generated, and others are predicted. Two very recent experiments
are analyzed, one of them showing the existence of two
  $\Lambda(1405)$ states and the other one providing support for the
  $\Lambda(1520)$ resonance as a quasibound state of $\Sigma(1385) \pi$. The
use of chiral Lagrangians to account for the hadronic interaction at the
elementary level introduces a new approach to deal with the modification of
meson and baryon properties in a nuclear medium. Examples of it for $\bar{K}$,
$\eta$ and $\phi$ modification in the nuclear medium are presented.


title: Neutron-Rich Nuclei in Heaven and Earth

abstract:
  An accurately calibrated relativistic parametrization is introduced to
compute the ground state properties of finite nuclei, their linear response,
and the structure of neutron stars. While similar in spirit to the successful
NL3 parameter set, it produces an equation of state that is considerably softer
-- both for symmetric nuclear matter and for the symmetry energy. This
softening appears to be required for an accurate description of several
collective modes having different neutron-to-proton ratios. Among the
predictions of this model are a symmetric nuclear-matter incompressibility of
K=230 MeV and a neutron skin thickness in 208Pb of Rn-Rp=0.21 fm. Further, the
impact of such a softening on the properties of neutron stars is as follows:
the model predicts a limiting neutron star mass of Mmax=1.72 Msun, a radius of
R=12.66 km for a ``canonical'' M=1.4 Msun neutron star, and no (nucleon) direct
Urca cooling in neutrons stars with masses below M=1.3 Msun.


title: The Proton Electric Pygmy Dipole Resonance

abstract:
  The evolution of the low-lying E1 strength in proton-rich nuclei is analyzed
in the framework of the self-consistent relativistic Hartree-Bogoliubov (RHB)
model and the relativistic quasiparticle random-phase approximation (RQRPA).
Model calculations are performed for a series of N=20 isotones and Z=18
isotopes. For nuclei close to the proton drip-line, the occurrence of
pronounced dipole peaks is predicted in the low-energy region below 10 MeV
excitation energy. From the analysis of the proton and neutron transition
densities and the structure of the RQRPA amplitudes, it is shown that these
states correspond to the proton pygmy dipole resonance.


title: Dynamical aspects of isoscaling

abstract:
  The origin and dynamical evolution of isoscaling was studied using classical
molecular dynamics simulations of ${}^{40}$Ca + ${}^{40}$Ca, ${}^{48}$Ca +
${}^{48}$Ca, and ${}^{52}$Ca + ${}^{52}$Ca, at beam energies ranging from $20 \
MeV/A$ to $85 MeV/A$. The analysis included a study of the time evolution of
this effect. Isoscaling was observed to exist in these reactions from the very
early primary isotope distributions (produced by highly {\it non-equilibrated}
systems) all the way to asymptotic times. This indicates that isoscaling is
independent of quantum effects and thermodynamical equilibrium. In summary,
collision-produced isoscaling appears to be due more to the mere partitioning
of the proton-neutron content of the participant nuclei, than to specific
details of the reaction dynamics.


title: Geometrical aspects of isoscaling

abstract:
  The property of isoscaling in nuclear fragmentation is studied using a simple
bond percolation model with ``isospin'' added as an extra degree of freedom. It
is shown analytically, first, that isoscaling is expected to exist in such a
simple model with the only assumption of fair sampling with homogeneous
probabilities. Second, numerical percolations of hundreds of thousands of grids
of different sizes and with different $N$ to $Z$ ratios confirm this prediction
with remarkable agreement. It is thus concluded that isoscaling emerges from
the simple assumption of fair sampling with homogeneous probabilities, a
requirement which, if put in the nomenclature of the minimum information
theory, translates simply into the existence of equiprobable configurations in
maximum entropy states.


title: Sum Rules of the Multiple Giant Dipole States

abstract:
  Various sum rules for multiple giant dipole resonance states are derived. For
the triple giant dipole resonance states, the energy-weighted sum of the
transition strengths requires a model to be related to those of the single and
double giant dipole resonance states. It is also shown that the non-diagonal
matrix elements of the double commutator between the dipole operator and the
nuclear Hamiltonian give useful identities for the excitation energy and
transition strength of each excited state. Using those identities, the
relationship between width of the single dipole state and those of the multiple
ones is qualitatively discussed.


title: Subthreshold $\pi\pi$ interference in three-particle final states

abstract:
  This paper has been withdrawn because the issues raised have been resolved by
Cabibbo and Isidori, hep-ph/0502130.


title:
Superscaling in charged current neutrino quasielastic scattering in the
  relativistic impulse approximation

abstract:
  Superscaling of the quasielastic cross section in charged current
neutrino-nucleus reactions at energies of a few GeV is investigated within the
framework of the relativistic impulse approximation. Several approaches are
used to describe final state interactions and comparisons are made with the
plane wave approximation. Superscaling is very successful in all cases. The
scaling function obtained using a relativistic mean field for the final states
shows an asymmetric shape with a long tail extending towards positive values of
the scaling variable, in excellent agreement with the behavior presented by the
experimental scaling function.


title:
Comparison of central collisions with thermalised systems in the
  framework of the classical N-body dynamics

abstract:
  In this study we address the question of the thermal description of
collisions of classical clusters in the framework of classical N-body dynamics.
We compare the results of systems in central collisions and those of
thermalised systems with the same sizes and with the same available energies.
The comparisons are made on size distributions, on total multiplicities
distributions and on IMF (N>3) multiplicities distributions. These
distributions are found identical for available energies per particle below the
energy of the least bound particle of the total system. They are notably
different for higher available energies. These results may put a new light on
the standard explanation for fragment formation in N-body collisions.


title: Projection Operator Formalisms and the Nuclear Shell Model

abstract:
  The shell model solve the nuclear many-body problem in a restricted model
space and takes into account the restricted nature of the space by using
effective interactions and operators. In this paper two different methods for
generating the effective interactions are considered. One is based on a partial
solution of the Schrodinger equation (Bloch-Horowitz or the Feshbach projection
formalism) and other on linear algebra (Lee-Suzuki). The two methods are
derived in a parallel manner so that the difference and similarities become
apparent. The connections with the renormalization group are also pointed out.


title: Is nuclear matter perturbative with low-momentum interactions?

abstract:
  The nonperturbative nature of inter-nucleon interactions is explored by
varying the momentum cutoff of a two-nucleon potential. Conventional force
models, which have large cutoffs, are nonperturbative because of strong
short-range repulsion, the iterated tensor interaction, and the presence of
bound or nearly-bound states. But for low-momentum interactions with cutoffs
around 2 fm^{-1}, the softened potential combined with Pauli blocking leads to
corrections in nuclear matter in the particle-particle channel that are well
converged at second order in the potential, suggesting that perturbation theory
can be used in place of Brueckner resummations. Calculations of nuclear matter
using the low-momentum two-nucleon force V_{low k} with a corresponding
leading-order three-nucleon (3N) force from chiral effective field theory (EFT)
exhibit nuclear binding in the Hartree-Fock approximation, and become less
cutoff dependent with the inclusion of the dominant second-order contributions.
The role of the 3N force is essential to obtain saturation, and the
contribution to the total potential energy is compatible with EFT
power-counting estimates.


title: S, P, D, F wave KN phase shifts in the chiral SU(3) quark model

abstract:
  The $S$, $P$, $D$, $F$ wave $KN$ phase shifts have been studied in the chiral
SU(3) quark model by solving a resonating group method equation. The numerical
results of different partial waves are in agreement with the experimental data
except for the cases of $P_{13}$ and $D_{15}$, which are less well described
when the laboratory momentum of the kaon meson is greater than 400 MeV.


title:
Coupling and higher-order effects in the 12C(d,p)13C and 13C(p,d)12C
  reactions

abstract:
  Coupled channels calculations are performed for the 12C(d,p)13C and
13C(p,d)12C reactions between 7 and 60 MeV to study the effect of inelastic
couplings in transfer reactions. The effect of treating transfer beyond Born
approximation is also addressed. The coupling to the 12C 2+ state is found to
change the peak cross-section by up to 15 %. Effects beyond Born approximation
lead to a significant renormalization of the cross-sections, between 5 and 10 %
for deuteron energies above 10 MeV, and larger than 10 % for lower energies. We
also performed calculations including the remnant term in the transfer
operator, which has a small impact on the 12C(d,p)13C(g.s.) and
13C(p,d)12C(g.s.) reactions. Above 30 MeV deuteron energy, the effect of the
remnant term is larger than 10 % for the 12C(d,p)13C(3.09 MeV) reaction and is
found to increase with decreasing neutron separation energy for the 3.09 MeV
state of 13C. This is of importance for transfer reactions with weakly bound
nuclei.


title:
Systematics of g factors of 2_1^+ states in even-even nuclei from Gd to
  Pt: A microscopic description by the projected shell model

abstract:
  The systematics of g factor of first excited 2^+ state vs neutron number N is
studied by the projected shell model. The study covers the even-even nuclei of
all isotopic chains from Gd to Pt. g factors are calculated by using the
many-body wavefunctions that reproduces well the energy levels and B(E2)'s of
the ground-state bands. For Gd to W isotopes the characteristic feature of the
g factor data along an isotopic chain is described by the present model.
Deficiency of the model in the g factor description for the heavier Os and Pt
isotopes is discussed.


title: Therminator: Thermal heavy-Ion generator

abstract:
  THERMINATOR is a Monte Carlo event generator designed for studying of
particle production in relativistic heavy-ion collisions performed at such
experimental facilities as the SPS, RHIC, or LHC. The program implements
thermal models of particle production with single freeze-out. It performs the
following tasks: 1) generation of stable particles and unstable resonances at
the chosen freeze-out hypersurface with the local phase-space density of
particles given by the statistical distribution factors, 2) subsequent
space-time evolution and decays of hadronic resonances in cascades, 3)
calculation of the transverse-momentum spectra and numerous other observables
related to the space-time evolution. The geometry of the freeze-out
hypersurface and the collective velocity of expansion may be chosen from two
successful models, the Cracow single-freeze-out model and the Blast-Wave model.
All particles from the Particle Data Tables are used. Experimental cuts may be
introduced in a very straightforward manner. The code is written in the
object-oriented c++ language and complies to the standards of the ROOT
environment.


title: Short-range correlations in two-nucleon knockout reactions

abstract:
  A theory of short-range correlations in two-nucleon removal due to elastic
breakup (diffraction dissociation) on a light target is developed. Fingerprints
of these correlations will appear in momentum distributions of back-to-back
emission of the nucleon pair. Expressions for the momentum distributions are
derived and calculations for reactions involving stable and unstable nuclear
species are performed. The signature of short-range correlations in other
reaction processes is also studied.


title:
Three Bosons in One Dimension with Short Range Interactions I: Zero
  Range Potentials

abstract:
  We consider the three-boson problem with $\delta$-function interactions in
one spatial dimension. Three different approaches are used to calculate the
phase shifts, which we interpret in the context of the effective range
expansion, for the scattering of one free particle a off of a bound pair. We
first follow a procedure outlined by McGuire in order to obtain an analytic
expression for the desired S-matrix element. This result is then compared to a
variational calculation in the adiabatic hyperspherical representation, and to
a numerical solution to the momentum space Faddeev equations. We find excellent
agreement with the exact phase shifts, and comment on some of the important
features in the scattering and bound-state sectors. In particular, we find that
the 1+2 scattering length is divergent, marking the presence of a zero-energy
resonance which appears as a feature when the pair-wise interactions are
short-range. Finally, we consider the introduction of a three-body interaction,
and comment on the cutoff dependence of the coupling.


title:
Isospin coupling in time-dependent-mean-field theories and decay of
  isovector excitations

abstract:
  We show that isospin non-diagonal terms should appear in the mean field
Hamiltonian when neutron-proton symmetry is broken. They give rise to charge
mixing in the single-particle wave-functions. We study the Time Dependent
Hartree-Fock response of a charge-exchange excitation which generates a charge
mixing in Ca isotopes. We find an enhancement of the low energy proton emission
in neutron-rich isotopes interpreted in terms of a charge oscillation below the
barrier.


title:
Quark-Hadron Duality and Parity Violating Asymmetry of Electroweak
  Reactions in the Delta Region

abstract:
  A dynamical model of electroweak pion production reactions in the Delta(1232)
region has been extended to include the neutral current contributions for
examining the local Quark-Hadron Duality in neutrino-induced reactions and for
investigating how the axial N-Delta form factor can be determined by the parity
violating asymmetry of N(\vec{e},e') reactions. We first show that the recent
data of (e,e') structure functions F_1 and F_2, which exhibit the Quark-Hadron
Duality, are in good agreement with our predictions. For possible future
experimental tests, we then predict that the structure functions F_1, F_2, and
F_3 for (\nu,e) and (\nu,\nu') processes also show the similar Quark-Hadron
Duality. The spin dependent structure functions g_1 and g_2 of (e,e') have also
been calculated from our model. It is found that the local Quark-Hadron Duality
is not seen in the calculated g_1 and g_2, while our results for g_1 and some
polarization observables associated with the exclusive p(\vec{e},e' pi) and
\vec{p}(\vec{e},e' pi) reactions are in reasonably good agreement with the
recent data. In the investigation of parity violating asymmetry A of
N(\vec{e},e') reactions, it is found that the non-resonant contribution is
small at the Delta peak and a measurement of A can be used to distinguish two
previously determined axial N-Delta transition form factors. The predicted
asymmetry A are also compared with the Parton Model predictions for future
experimental investigations of Quark-Hadron Duality.


title:
Self-consistent relativistic random phase approximation with vacuum
  polarization

abstract:
  We present a theoretical formulation for the description of nuclear
excitations within the framework of relativistic random-phase approximation
whereby the vacuum polarization arising from nucleon-antinucleon fields is duly
accounted for. The vacuum contribution to Lagrangian is explicitly described as
extra new terms of interacting mesons by means of the derivative expansion of
the effective action. It is shown that the self-consistent calculation yields
zero eigenvalue for the spurious isoscalar-dipole state and also conserves the
vector-current density.


title: Possibly stable configurations of $\Theta^+_5$ in the flux-tube model

abstract:
  In this work, following the literature, we investigate the semi-classical
picture where various spatial configurations for $\Theta^+_5$ were suggested by
several authors. We use the flux tube model where the effective Column
coefficient and string tension are extracted from the lattice QCD calculations,
to obtain the interactions among the constituent quarks, which is later to be
taken as an effective potential. It is reasonable to assume that keeping the
simple spatial shape, only the breathing mode is considered, thus the whole
system is much simplified and described by only one variable. Substituting the
potential into the Schr\"odinger equation, we evaluate the binding energy of
the system. We find that each of the configuration has higher symmetries and
corresponds to a local minimum of energy and one of them results in a mass
which is smaller than the others. It is interesting to notice that with such a
very simplified semi-classical picture the minimal value corresponds to a mass
of 1530 to 1554 MeV for $\Theta^+_5$. The good agreement with the LEPS' data
may indicate that such simplified picture indeed reflects physical reality in
some sense.


title:
The effect of quark exchange in A=3 mirror nuclei and neutron/proton
  structure functions ratio

abstract:
  By using the quark-exchange formalism, realistic Faddeev wave functions and
Fermi motion effect, we investigate deep inelastic electron scattering from A=3
mirror nuclei in the deep-valence region. The initial valence quarks in put are
taken from the GRV's next-to-leading order calculations on $F_2^p(x,Q^2)$ which
give very good fit to the available data in the $(x,Q^2)$-plane. It is shown
that the free neutron to proton structure functions ratio can be extracted from
corresponding EMC ratios for $^3He$ and $^3H$ mirror nuclei by using
self-consistent iteration procedure and the results are in good agreement with
other theoretical models as well as present available experimental data,
especially the one expected form the proposed 11 GeV Jefferson Laboratory.


title: Elliptic flow of $\phi$ meson and strange quark collectivity at RHIC

abstract:
  Based on A Multi-Phase Transport (AMPT) model, we have studied the elliptic
flow $v_{2}$ of $\phi$ mesons from reconstructed $K^{+}K^{-}$ decay channel at
the top Relativistic Heavy Ion Collider energy at Brookhaven National
Laboratory. The dependences of $v_{2}$ on transverse momentum $p_T$ and
collision centrality are presented and the rescattering effect of $\phi$ mesons
in the hadronic phase is also investigated. The results show that experimental
measurement of $v_{2}$ for $\phi$ mesons can retain the early collision
information before $\phi$ decays and that the $\phi$ $v_2$ value obeys the
constituent quark number scaling which has been observed for other mesons and
baryons. Our study indicates that the $\phi$ $v_2$ mostly reflects partonic
level collectivity developed during the early stage of the nucleus-nucleus
collision and the strange and light up/down quarks have developed similar
angular anistropy properties at the hadronization.


title: Medium modifications of antikaons in dense matter

abstract:
  We investigate the modification of antikaons in isospin symmetric and
asymmetric nuclear matter. Using the leading s-wave couplings of the SU(3)
chiral meson-baryon Lagrangian we solve the coupled channel kaon-nucleon
scattering equation selfconsistently. The in-medium antikaon propagator is
calculated for different densities and different proton/neutron ratios. The
spectral function of the antikaon is found to be broadened strongly, and its
mass is shifted downward significantly. However, comparing the effective
in-medium mass of the antikaon to the relevant charge chemical potential of
neutron star matter, we find that kaon condensation is unlikely to occur in
neutron stars.


title: Angular Moment Analysis of Correlations

abstract:
  For analyzing anisotropic low relative-velocity correlation-functions and the
associated emission sources, we propose an expansion in terms of cartesian
spherical harmonics. The expansion coefficients represent angular moments of
the investigated functions. The respective coefficients for the correlation and
source are directly related to each other via one-dimensional integral
transforms. The shape features of the source may be partly read off from the
respective features of the correlation function and can be, otherwise, imaged.


title:
Low momentum shell model effective interactions with all-order core
  polarizations

abstract:
  An all-order summation of core polarization diagrams using the low-momentum
nucleon-nucleon interaction, V_low-k is presented. The summation is based on
the Kirson-Babu-Brown (KBB) induced interaction approach in which the vertex
functions are obtained self consistently by solving a set of non-linear coupled
equations. It is found that the solution of these equations is simplified by
using V_low-k, which is energy independent, and by employing Green functions in
the particle-particle and particle-hole channels. We have applied this approach
to the sd-shell effective interactions and find that the results calculated to
all orders using the KBB summation technique are remarkably similar to those of
second-order perturbation theory, average differences being less than 10%.


title:
Spatially extended coherence induced by pairing correlation in
  low-frequency vibrational excitations of neutron drip line nuclei

abstract:
  Role of pairing correlation for emergence of low-frequency vibrational
excitations in neutron drip line nuclei is discussed paying special attention
to neutrons with small orbital angular momentum l. Self-consistent pairing
correlation in the Hartree-Fock-Bogoliubov (HFB) theory causes the change of
the spatial structure of the quasiparticle wave functions; "the pairing
anti-halo effect" in the lower component and "the broadening effect" in the
upper component. The resultant spatial distribution of the two-quasiparticle
states among low-l neutrons, "the broad localization", brings about
qualitatively new aspects, especially the large transition strength of the
low-frequency vibrational excitations in nuclei close to the neutron drip line.
By performing HFB plus quasiparticle random phase approximation (QRPA)
calculation for the first 2+ states in neutron rich Ni isotopes, the unique
role of self-consistent pairing correlation is pointed out.


title: Pi-meson as the quanta of non-newtonian hadronic fluid

abstract:
  It occurs that when we attempt to melt the nucleon in order to obtain the
free quark gas, or QGP fluid the mass of the heat quantum (heaton) is equal to
the pi-meson mass.
  Key words: Heat quanta; Quantum heat transport; Quantum diffusion
coefficient.


title:
Three-Body Coulomb Final-State Interaction Effects in the Coulomb
  Breakup of Light Nuclei

abstract:
  Coulomb breakup of a projectile in the Coulomb field of a fully stripped
heavy nucleus is at present one of the most popular experimental methods to
obtain information on reactions of interest in nuclear astrophysics. Its
theoretical interpretation presents, however, considerable difficulties, due to
the three-body nature and the infinite range of the Coulomb forces involved.
Among the uncertainties affecting present analyses, the possible modification
of the dissociation cross section by three-body Coulomb final-state
interactions plays a major role. Various methods which have been proposed to
deal with it are briefly reviewed. However, none of them is based on a
consistent and mathematically satisfactory quantum mechanical treatment, with
the exception of the one proposed recently. The latter, being based on the
prior form of the dissociation amplitude, makes use of a genuine three-charged
particle wave function for the final state which is an exact solution of the
three-body Schr\"odinger equation, albeit only asymptotically, i.e. for large
distances. Nevertheless, interesting conclusion can be drawn concerning the
influence of three-body Coulomb final-state interactions on quantities of
astrophysical interest.


title: Structure of $^8$B and astrophysical $S_{17}$ factor

abstract:
  Nuclear structure data are of crucial importance in order to address
important astrophysical problems such as the origin of chemical elements, the
inner working of our Sun, and the evolution of stars. We demonstrate this by
investigating the ground state structure of $^8$B and $^7$Be nuclei within the
Skyrme Hartree-Fock framework and by calculating the overlap integral of $^8$B
and $^7$Be wave functions. The latter is used to calculate the astrophysical S
factor ($S_{17}$) for the solar fusion reaction $^{7}$Be($p, \gamma)^{8}$B.


title: Consistency of nuclear mass formulae

abstract:
  The general scepticism and loss of faith on the predictive ability of
different mass formulae, arising out of the divergence of their predictions in
unknown regions taken with respect to a reference mass formula, is successfully
dispelled. When the result of relativistic mean field (RMF) theory with a
Lagrangian common for all nuclei is taken as reference, the divergence
disappears, and clear trend with strong correlation appears restoring our faith
in general on the predictions of mass formulae, qualifying them as useful
guideline for theoretical and experimental studies of nuclear phenomena.


title:
Deformation and orientation effects in the driving potential of the
  dinuclear model

abstract:
  A double-folding method is used to calculate the nuclear and Coulomb
interaction between two deformed nuclei with arbitrary orientations. A
simplified Skryme-type interaction is adopted. The contributions of nuclear
interaction and Coulomb interaction due to the deformation and orientation of
the nuclei are evaluated for the driving potential used in the description of
heavy-ion fusion reaction. So far there is no satisfactory theory to describe
the evolution of the dynamical nuclear deformation and orientations during the
heavy-ion fusion process. Our results estimated the magnitude of above effects.


title:
$\Sigma^-/\Sigma^+$ ratio as a candidate for probing the density
  dependence of the symmetry potential at high nuclear densities

abstract:
  Based on the UrQMD model, we have investigated the influence of the symmetry
potential on the negatively and positively charged $\pi$ and $\Sigma$ hyperon
production ratios in heavy ion collisions at the SIS energies. We find that, in
addition to $\pi^-/\pi^+$ ratio, the $\Sigma^-/\Sigma^+$ ratio can be taken as
a sensitive probe for investigating the density dependence of the symmetry
potential of nuclear matter at high densities (1-4 times of normal baryon
density). This sensitivity of the symmetry potential to both the $\pi^-/\pi^+$
and $\Sigma^-/\Sigma^+$ ratios is found to depend strongly on the incident beam
energy. Furthermore, the $\Sigma^-/\Sigma^+$ ratio is shown to carry the
information about the isospin-dependent part of the $\Sigma$ hyperon
single-particle potential.


title: Gapless color-flavor locked phase in quark and hybrid stars

abstract:
  We study the effects of the gapless color-flavor locked (gCFL) phase on the
equation of state of strongly interacting matter in the range of baryonic
chemical potential involved in a compact star. We analyze the possibility of a
phase transition from hadronic matter to gCFL quark matter and we discuss, for
different values of the strange quark mass and diquark coupling strength, the
existence of a gCFL phase in quark or hybrid stars. The mass-radius relation
and the structure of compact stars containing the gCFL phase are shown and the
physical relevance of this superconducting phase inside a stellar object is
also discussed.


title: Renormalization of the Deuteron with One Pion Exchange

abstract:
  We analyze the deuteron bound state through the One Pion Exchange Potential.
We pay attention to the short distance peculiar singularity structure of the
bound state wave functions in coordinate space and the elimination of short
distance ambiguities by selecting the regular solution at the origin. We
determine the so far elusive amplitude of the converging exponential solutions
at the origin. All bound state deuteron properties can then be uniquely deduced
from the deuteron binding energy, the pion-nucleon coupling constant and pion
mass. This generates correlations among deuteron properties. Scattering phase
shifts and low energy parameters in the 3S1-3D1 channel are constructed by
requiring orthogonality of the positive energy states to the deuteron bound
state, yielding an energy independent combination of boundary conditions. We
also analyze from the viewpoint of short distance boundary conditions the weak
binding regime on the light of long distance perturbation theory and discuss
the approach to the chiral limit.


title: Direct Reactions with Exotic Nuclei

abstract:
  We discuss recent work on Coulomb dissociation and an effective-range theory
of low-lying electromagnetic strength of halo nuclei. We propose to study
Coulomb dissociation of a halo nucleus bound by a zero-range potential as a
homework problem. We study the transition from stripping to bound and unbound
states and point out in this context that the Trojan-Horse method is a suitable
tool to investigate subthreshold resonances.


title: A Transport Model for Nuclear Reactions Induced by Radioactive Beams

abstract:
  Major ingredients of an isospin and momentum dependent transport model for
nuclear reactions induced by radioactive beams are outlined. Within the IBUU04
version of this model we study several experimental probes of the equation of
state of neutron-rich matter, especially the density dependence of the nuclear
symmetry energy. Comparing with the recent experimental data from NSCL/MSU on
isospin diffusion, we found a nuclear symmetry energy of $% E_{sym}(\rho
)\approx 31.6(\rho /\rho_{0})^{1.05}$ at subnormal densities. Predictions on
several observables sensitive to the density dependence of the symmetry energy
at supranormal densities accessible at GSI and the planned Rare Isotope
Accelerator (RIA) are also made.


title: The Shell Model, the Renormalization Group and the Two-Body Interaction

abstract:
  The no-core shell model and the effective interaction $V_{{\rm low} k}$ can
both be derived using the Lee-Suzuki projection operator formalism. The main
difference between the two is the choice of basis states that define the model
space. The effective interaction $V_{{\rm low} k}$ can also be derived using
the renormalization group. That renormalization group derivation can be
extended in a straight forward manner to also include the no-core shell model.
In the nuclear matter limit the no-core shell model effective interaction in
the two-body approximation reduces identically to $V_{{\rm low} k}$. The same
considerations apply to the Bloch-Horowitz version of the shell model and the
renormalization group treatment of two-body scattering by Birse, McGovern and
Richardson.


title: Triaxiality, chirality and gamma-softness

abstract:
  Current work explores the impact of gamma-softness on partner bands built on
the h11/2h11/2 proton-particle-neutron-hole configurations in triaxial odd-odd
nuclei. The results of calculations conducted using a core-particle-hole
coupling are presented. The model Hamiltonian includes the collective core, the
single-particle valence nucleons, and separable quadrupole-quadrupole
interactions. The Kerman-Klein method was applied to find eigenstates, which
provided a convenient way for exploring core effects. Calculations were made
for triaxial cores with various gamma-softness using the General Collective
Model keeping the expectation value for the triaxiality parameter fixed at
<gamma>=30 deg. The degeneracy in the proton-neutron h11/2h11/2 bands results
from the calculations for the gamma-rigid core but is lifted for the
gamma-unstable core.


title: Di-Electron Bremsstrahlung in Intermediate-Energy pn and Dp Collisions

abstract:
  Invariant mass spectra of di-electrons stemming from bremsstrahlung processes
are calculated in a covariant diagrammatical approach for the exclusive
reaction D p \to p_{\rm sp} n p e^+ e^- with detection of a forward spectator
proton, p_{sp}. We employ an effective nucleon-meson theory for parameterizing
the sub-reaction n p \to n p e^+ e^- and, within the Bethe-Salpeter formalism,
derive a factorization of the cross section in the form {d\sigma_{D p \to
p_{\rm sp} n p e^+ e^-}}/{dM}= {d\sigma_{n p \to n p e^+ e^-}}/{dM} \times
kinematical factor related solely to the deuteron (M is the e^+ e^- invariant
mass). The effective nucleon-meson interactions, including the exchange mesons
\pi, \sigma, \omega and \rho as well as excitation and radiative decay of
\Delta(1232), have been adjusted to the process pp \to pp e^+ e^- at energies
below the vector meson production threshold. At higher energies, contributions
from \omega and \rho meson excitations are analyzed in both, NN and Dp
collisions. A relation to two-step models is discussed. Subthreshold
di-electron production in Dp collisions at low spectator momenta is
investigated as well. Calculations have been performed for kinematical
conditions envisaged for forthcoming experiments at HADES.


title:
Spin correlations in the reaction "pi \vec D --> \vec\Sigma \Theta^+"
  and the parity of Theta^+

abstract:
  We analyze two types of spin observables in the reaction $\pi \vec
D\to\vec\Sigma\Theta^+$ near the threshold. One concerns the spin-transfer
coefficients $K_x^x$ and $K_z^z$. The second one is the deuteron spin
anisotropy. These observables are sensitive to the $\Theta^+$ parity and can be
used as a tool for the $\Theta^+$ parity determination.


title:
Self-Consistent Nuclear Shell-Model Calculation Starting from a
  Realistic NN Potential

abstract:
  First self-consistent realistic shell-model calculation for the light p-shell
nuclei is performed, starting from the high-precision nucleon-nucleon (NN)
CD-Bonn potential. This realistic potential is renormalized deriving a
low-momentum NN potential V-low-k that preserves exactly the two-nucleon
low-energy physics. This V-low-k is suitable to derive a self-consistent
Hartree-Fock basis that is employed to derive both effective single-particle
energies and residual two-body matrix elements for the shell-model hamiltonian.
Results obtained show the reliability of such a fundamental microscopic
approach.


title: Coordinates, modes and maps for the density functional

abstract:
  Special bases of orthogonal polynomials are defined, that are suited to
expansions of density and potential perturbations under strict particle number
conservation. Particle-hole expansions of the density response to an arbitrary
perturbation by an external field can be inverted to generate a mapping between
density and potential. Information is obtained for derivatives of the
Hohenberg-Kohn functional in density space. A truncation of such an information
in subspaces spanned by a few modes is possible. Numerical examples illustrate
these algorithms.


title:
Charmonium Productions: Nucleon-Nucleon versus Nucleus-Nucleus
  Collisions

abstract:
  Charmonium productions in $p-p$ and $A-B$ collisions have been estimated
within the ambit of colour evaporation model (CEM). The model parameters have
been fixed by fitting the theoretical results with CDF data. The method is then
applied to RHIC and LHC energies to obtain the transverse momentum
distributions of $J/\psi$, $\psi^{\prime}$ and $\chi_c$. Suppression due to
Debye screening in a quark gluon plasma (QGP) is estimated at various
centrality cuts. The final $p_T$ distributions of various resonances are then
predicted convoluting with the survival probability.


title: New exactly solvable reflectionless potentials of Gamov's type

abstract:
  In paper SUSY-hierarchies of one-dimensional potentials with continuous
energy spectra are studied. Use of such hierarchies for analysis of
reflectionless potentials is substantiated from the physical point of view. An
interdependence (based on Darboux transformations) between spectral
characteristics of potentials-partners is determined, an uniqueness of its
solution in result of use of boundary conditions is shown. A rule of
construction of new reflectionless potentials on the basis of known one is
corrected, its proof is proposed.
  At first time a general solution for a superpotential $W_{n+m}(x)$ with an
arbitrary number n+m in the studied hierarchy on the basis of only one known
partial solution for the superpotential $W_{n}(x)$ with the selected number n
is found.
  A general solution of a hierarchy of inverse power (reflectionless)
potentials is obtained. Such a hierarchy can be interesting as an example for
solution of a known problem of search of general solutions of the hierarchies
of different types (both in standard and parasupersymmetric quantum mechanics).
A consequent statement and analysis of exactly solvable reflectionless
potentials of Gamov's type, which at their shapes look qualitatively like
scattering potentials in two-particle description of collisions between
particles and nuclei or decay potentials in two-particle description of decay
of compound spherical nuclear systems, are presented.


title: P and T odd effects in deuteron in the Reid potential

abstract:
  The $P$ and $T$ odd deuteron multipoles are calculated in the Reid
nucleon-nucleon potential in the chiral limit $m_{\pi}\to 0$. The contact
current generated by the $\pi$-meson exchange does not contribute to the
anapole moment. The contact current generated by the vector meson exchange is
negligible in comparison with other contributions of vector mesons. The result
for the deuteron electric dipole moment is of great interest because of the
experiment on its measurement discussed in Brookhaven. The deuteron
photodisintegration cross section asymmetry at the threshold is also
calculated. It is shown that its value strongly depends on the tensor forces
and d-wave contribution to the deuteron wave function.


title: The structure of the nucleon: baryons and pentaquarks

abstract:
  In these lecture notes I discuss an algebraic model of baryons and
pentaquarks, in particular a stringlike collective model is considered in which
the radial excitations of baryons and pentaquarks are interpreted as rotations
and vibrations of the strings. The algebraic structure of the model makes it
possible to derive closed expressions for physical observables, such as masses
and electromagnetic and strong couplings. The model is applied to the mass
spectrum and magnetic moments of baryon resonances of the nucleon and delta
families and to exotic baryons of the theta family. The ground pentaquark is
predicted to have angular momentum and parity J(P)=1/2(-) and a small magnetic
moment of 0.382 nuclear magnetons.


title:
Nonextensive statistical effects on nuclear astrophysics and many-body
  problems

abstract:
  Density and temperature conditions in many stellar core (like the solar core)
imply the presence of nonideal plasma effects with memory and long-range
interactions between particles. This aspect suggests the possibility that the
stellar core could not be in a global thermodynamical equilibrium but satisfies
the conditions of a metastable state with a stationary (nonextensive) power law
distribution function among ions. The order of magnitude of the deviation from
the standard Maxwell-Boltzmann distribution can be derived microscopically by
considering the presence of random electrical microfields in the stellar
plasma. We show that such a nonextensive statistical effect can be very
relevant in many nuclear astrophysical problems.

categories: nucl-th astro-ph cond-mat.stat-mech hep-ph


title: Formation of mesic nuclei by (\gamma,p) reactions

abstract:
  We present a theoretical study on formation rates of \eta and \omega
meson-nucleus systems induced by (\gamma,p) reactions on nuclear targets at
ideal recoilless condition. We find that the smaller distortion effect in the
(\gamma,p) reaction enables us to investigate properties of the mesons created
deeply inside nucleus more clearly. We also consider excitation of
scalar-isoscalar (\sigma) mode in nucleus in order to investigate spectral
enhancement around two-pion threshold caused by partial restoration of chiral
symmetry. We conclude that valuable information of meson-nucleus interactions
can be extracted from global structure of the missing mass spectra in the
(\gamma,p) reaction.


title:
Spherical Hartree-Fock calculations with linear momentum projection
  before the variation.Part II: Spectral functions and spectroscopic factors

abstract:
  The hole--spectral functions and from these the spectroscopic factors have
been calculated in an Galilei--invariant way for the ground state wave
functions resulting from spherical Hartree--Fock calculations with projection
onto zero total linear momentum before the variation for the nuclei 4He, 12C,
16O, 28Si, 32S and 40Ca. The results are compared to those of the conventional
approach which uses the ground states resulting from usual spherical
Hartree--Fock calculations subtracting the kinetic energy of the center of mass
motion before the variation and to the results obtained analytically with
oscillator occupations.


title: Progress on reactions with exotic nuclei

abstract:
  Modelling breakup reactions with exotic nuclei represents a challenge in
several ways. The CDCC method (continuum discretized coupled channel) has been
very successful in its various applications. Here, we briefly mention a few
developments that have contributed to the progress in this field as well as
some pertinent problems that remain to be answered.


title:
Comparison of optical model results from a microscopic Schr\"odinger
  approach to nucleon-nucleus elastic scattering with those from a global Dirac
  phenomenology

abstract:
  Comparisons are made between results of calculations for intermediate energy
nucleon-nucleus scattering for 12C, 16O, 40Ca, 90Zr, and 208Pb, using optical
potentials obtained from global Dirac phenomenology and from a microscopic
Schr\"odinger model. Differential cross sections and spin observables for
scattering from the set of five nuclei at 65 MeV and 200 MeV have been studied
to assess the relative merits of each approach. Total reaction cross sections
from proton-nucleus and total cross sections from neutron-nucleus scattering
have been evaluated and compared with data for those five targets in the energy
range 20 MeV to 800 MeV. The methods of analyses give results that compare well
with experimental data in those energy regimes for which the procedures are
suited.


title:
Generalized mass formula for non-strange and hyper nuclei with SU(6)
  symmetry breaking

abstract:
  A simultaneous description of non-strange nuclei and hypernuclei is provided
by a single mass formula inspired by the spin-flavour SU(6) symmetry breaking.
This formula is used to estimate the hyperon binding energies of Lambda, double
Lambda, Sigma, Cascade and Theta hypernuclei. The results are found to be in
good agreement with the available experimental data on 'bound' nuclei and
relativistic as well as quark mean field calculations. This mass formula is
useful to estimate binding energies over a wide range of masses including the
light mass nuclei. It is not applicable for repulsive potential.


title: Anomalous Lagrangians and the radiative muon capture in hydrogen

abstract:
  The structure of an anomalous Lagrangian of the pi-rho-omega-a_1 system is
investigated within the hidden local SU(2)_R x SU(2)_L symmetry approach. The
interaction of the external electromagnetic and weak vector and axial-vector
fields with the above hadron system is included.
  The Lagrangian of interest contains the anomalous Wess-Zumino term following
from the well known Wess-Zumino-Witten action and six independent homogenous
terms. It is characterized by four constants that are to be determined from a
fit to the data on various elementary reactions. Present data allows one to
extract the constants with a good accuracy.
  The homogenous part of the Lagrangian has been applied in the study of
anomalous processes that could enhance the high energy tail of the spectrum of
photons, produced in the radiative muon capture in hydrogen. It should be noted
that recently, an intensive search for such enhancement processes has been
carried in the literature, in an attempt to resolve the so called "g_P puzzle":
an about 50 % difference between the theoretical prediction of the value of the
induced pseudoscalar constant g_P and its value extracted from the high energy
tail of the photon spectrum, measured in the precision TRIUMF experiment.
  Here, more details on the studied material are presented and new results,
obtained by using the Wess-Zumino term, are provided.


title: The QCD vacuum and its hadronic excitations

abstract:
  A survey is given on selected topics of physics in the non-perturbative,
hadronic sector of the QCD phase diagramme. Following a brief QCD primer, some
highlights of Lattice QCD are summarised. Chiral effective field theory as the
low-energy realisation of QCD is reviewed, with applications in pion-pion
scattering, the scalar form factor of the nucleon and the interpolation of
nucleon properties between lattice QCD results and actual observables. Chiral
SU(3) dynamics, incorporating the strange quark, is developed with examples
relating to low-energy kaon-nucleon interactions. The quest for quasiparticles
in QCD and their correlations, beyond the simple partonic pictures of hadron
structure, is discussed and aspects of QCD thermodynamics are explored in this
context.


title: Many Body Methods and Effective Field Theory

abstract:
  In the framework of pionless nucleon-nucleon effective field theory we study
different approximation schemes for the nuclear many body problem. We consider,
in particular, ladder diagrams constructed from particle-particle, hole-hole,
and particle-hole pairs. We focus on the problem of finding a suitable starting
point for perturbative calculations near the unitary limit (k_Fa)->infinity and
(k_Fr)-> 0, where k_F is the Fermi momentum, a is the scattering length and r
is the effective range. We try to clarify the relationship between different
classes of diagrams and the large g and large D approximations, where g is the
fermion degeneracy and D is the number of space time dimensions. In the large D
limit we find that the energy per particle in the strongly interacting system
is 1/2 the result for free fermions.


title:
NN Final-State Interaction in the Helicity Dependence of Inclusive
  $\pi^-$ Photoproduction from the Deuteron

abstract:
  The helicity dependence of the inclusive $\pi^-$ photoproduction reaction
from the deuteron in the $\Delta$(1232)-resonance region is investigated with
inclusion of final-state nucleon-nucleon rescattering ($NN$-FSI). For the
elementary $\pi$-production operator an effective Lagrangian model which
includes the standard pseudovector Born terms and a contribution from the
$\Delta$-resonance is used. The half-off-shell $NN$-scattering matrix is
obtained from a separable representation of a realistic $NN$-interaction. The
differential polarized cross-section difference for parallel and antiparallel
helicity states is predicted and compared with experiment. We find that the
effect of $NN$-FSI is much less important in the helicity difference than in
the previously studied unpolarized differential cross section. Furthermore, the
contribution of $\vec d(\vec\gamma,\pi^-)pp$ to the deuteron spin asymmetry is
explicitly evaluated with inclusion of $NN$-FSI. It has been found that the
effect of $NN$-FSI is much larger in the asymmetry than in the total cross
section, and this leads to an appreciable reduction of the spin asymmetry in
the $\Delta$-region. Inclusion of such effect also leads to improved and quite
satisfactory agreement with existing experimental data.


title:
Final-state $NN$-rescattering in spin asymmetries of $d(\gamma,\pi^-)pp$
  reaction

abstract:
  The role of the final-state $NN$-rescattering ($NN$-FSI) in the polarization
observables of the inclusive reaction $d(\gamma,\pi^-)pp$, involving
polarization of the photon beam and/or the deuteron target, is investigated.
Various single- and double-spin asymmetries are studied with respect to the
influence of such interaction effect and numerical predictions are given for
forthcoming experiments. It has been found that the effect of $NN$-FSI is quite
important for the single-spin asymmetries $\Sigma$, $T_{20}$, $T_{21}$ and
$T_{22}$ and the double-spin asymmetry $T^{\ell}_{20}$, whereas it is much less
important for the vector target asymmetry $T_{11}$ and other beam-target
double-polarization asymmetries. Furthermore, we found that the inclusion of
the $NN$-FSI improves the description of the LEGS data for the linear photon
asymmetry.