id large_stringlengths 9 16 | title large_stringlengths 1 382 | abstract large_stringlengths 3 6.09k | publish_date date32 | update_date date32 | categories large listlengths 1 13 | authors large_stringlengths 3 62.8k |
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nucl-th/9412019 | Spin-Isospin Modes in Heavy-Ion Collisions I: Nuclear Matter at Finite
Temperatures | With a view towards implementation in microscopic transport simulations of
heavy-ion collisions, the properties of spin-isospin modes are studied in
nuclear matter consisting of nucleons and Delta isobars that interact by the
exchange of pi and rho mesons. For a standard p-wave interaction and an
effective g' short-ran... | 1994-12-14 | 2015-06-26 | [
"nucl-th"
] | J. Helgesson and J. Randrup (Lawrence Berkeley Lab, Berkeley, USA) |
nucl-th/9412020 | Fragment Flow and the Nuclear Equation of State | We use the Boltzmann-Uehling-Uhlenbeck model with a momentum-dependent
nuclear mean field to simulate the dynamical evolution of heavy ion collisions.
We re-examine the azimuthal anisotropy observable, proposed as sensitive to the
equation of state of nuclear matter. We obtain that this sensitivity is maximal
when the ... | 1994-12-14 | 2009-10-28 | [
"nucl-th"
] | Jianming Zhang and Charles Gale |
nucl-th/9412015 | Two neutrino double beta decay within the $\xi$-approximation | We examine the contributions of odd-parity nuclear operators to the
two-neutrino double beta decay $0^+\rightarrow 0^+$ amplitude, which come from
the $P$-wave Coulomb corrections to the electron wave functions and the recoil
corrections to the nuclear currents. Although they are formally of higher order
in $\alpha Z/2... | 1994-12-09 | 2016-08-14 | [
"nucl-th"
] | C. Barbero, F. Krmpoti\'c and A. Mariano |
nucl-th/9412016 | Instanton content of finite temperature QCD matter | We investigate the temperature dependence of the instanton content of gluon
fields and their contribution to quark correlation using quenched lattice QCD
and the cooling method. We found a suppression of the topological
susceptibility at finite temperature, agreeing with the PCAC expectation at low
temperature and enha... | 1994-12-09 | 2010-11-01 | [
"nucl-th",
"hep-lat"
] | M.-C. Chu and S. Schramm |
nucl-th/9412017 | Relativistic nuclear structure effects in quasielastic neutrino
scattering | Charged-current cross sections are calculated for quasielastic neutrino and
antineutrino scattering using a relativistic meson-nucleon model. We examine
how nuclear-structure effects, such as relativistic random-phase-approximation
(RPA) corrections and momentum-dependent nucleon self-energies, influence the
extraction... | 1994-12-09 | 2009-09-25 | [
"nucl-th",
"hep-ph"
] | Hungchong Kim, J. Piekarewicz and C. J. Horowitz |
nucl-th/9412014 | Is Large Weak Mixing in Heavy Nuclei Consistent with Aiomic Experiments? | The hypothesis of a large weak matrix element between single-particle states
in heavy nuclei ($\sim 100$ eV) contradicts the results of atomic PNC
experiments. | 1994-12-09 | 2008-11-26 | [
"nucl-th"
] | V.F. Dmitriev, I.B. Khriplovich, V.B. Telitsin |
nucl-th/9412012 | On the Role of Dissipation in the Early Stages of Relativistic Heavy Ion
Collisions | The influence of the dissipative terms on the conditions of formation and the
characteristic parameters of shock waves in relativistic nuclear collisions is
investigated for three types of equation of state (non linear QHD-1, resonance
gas and lattice QCD). Energy and velocity profiles are obtained in a
one-dimensional... | 1994-12-08 | 2009-10-28 | [
"nucl-th"
] | L. Mornas, U. Ornik, (GSI, Darmstadt) |
nucl-th/9412013 | Proton-proton bremsstrahlung below and above pion-threshold: the
influence of the $\Delta$-isobar | The proton-proton bremsstrahlung is investigated within a coupled-channel
model with the $\Delta$ degree of freedom. The model is consistent with the
$NN$ scattering up to 1 GeV and the $\gamma N\Delta$ vertex determined in the
study of pion photoproduction reactions. It is found that the $\Delta$
excitation can signif... | 1994-12-08 | 2009-09-25 | [
"nucl-th"
] | F. de Jong, K. Nakayama and T.-S. H. Lee |
nucl-th/9412011 | A Resonance Model for pi N -> Y K and pi Delta -> Y K Reactions for Kaon
Production in Heavy Ion Collisions | In a resonance model the reactions pi N -> Y K and pi Delta -> Y K are
studied. For the reactions pi N -> Lambda K and pi Delta -> Lambda K, the
resonances N(1650)(J^P=1/2^-), N(1710)(1/2^+) and N(1720)(3/2^+) are included
as intermediate states. For the reactions pi N -> Sigma K, the resonances
N(1710)(1/2^+), N(1720)... | 1994-12-07 | 2009-09-25 | [
"nucl-th"
] | S. W. Huang, K. Tsushima, A Faessler, E. Lehmann and R. K. Puri |
nucl-th/9412010 | Relativistic Density Dependent Hartree-Fock Approach for Finite Nuclei | The self-energy of the Dirac Brueckner-Hartree-Fock calculation in nuclear
matter is parametrized by introducing density-dependent coupling constants of
isoscalar mesons in the relativistic Hartree-Fock (RHF) approach where
isoscalar meson $\sigma$ , $\omega$ and isovector meson $\pi$, $\rho$
contributions are included... | 1994-12-07 | 2009-10-28 | [
"nucl-th"
] | Hua-lin Shi, Bao-qiu Chen and Zhong-yu Ma |
nucl-th/9412009 | Comparison of Experimental Data to the Relativistic Quantum Molecular
Dynamics Model For Si+Au Collisions at 14.6 A GeV/c | Predictions from the RQMD model are systematically compared to recently
published charged hadron distributions of AGS Experiment 802 for central Si+Au
collisions at 14.6$A$ GeV/$c$, taking into account both the experimental
trigger condition and acceptance. The main features of the data, including
K$^+$ production, can... | 1994-12-06 | 2009-09-25 | [
"nucl-th"
] | M. Gonin, Ole Hansen, B. Moskowitz, F. Videbaek (Brookhaven National
Laboratory); H. Sorge (Los Alamos National Laboratory); R. Mattiello (Johann
Wolfgang Goethe Universitat) |
nucl-th/9412005 | Deformed Hartree-Fock Calculation of Proton-Rich Nuclei | We perform Hartree-Fock+BCS calculations for even-even nuclei with 2 <= Z <=
82 and N ranging from outside the proton drip line to the experimental frontier
on the neutron-rich side. The ground state solutions are obtained for 737
nuclei, together with shape-coexistence solutions for 480 nuclei. Our method
features the... | 1994-12-06 | 2009-10-28 | [
"nucl-th"
] | N. Tajima, N. Onishi, and S. Takahara (Univ. Tokyo, Komaba) |
nucl-th/9412007 | Role of Meson-Meson Correlation Effects in the $\NNb\to\rho\pi$
Annihilation Process | Meson-meson correlation effects are investigated in the $\NNb\to\rho\pi$
annihilation process using a realistic meson-exchange model for the $\rho\pi$
interaction determined previously, together with a conventional baryon-exchange
transition model and a consistent $\NNb$ interaction. For $\NNb$ $S$-states,
they have a ... | 1994-12-06 | 2009-10-28 | [
"nucl-th"
] | V. Mull, G. Janssen, J. Speth, and K. Holinde |
nucl-th/9412008 | Double-Dipole Excitations in 40Ca | The double-dipole strength distribution in $^{40}$Ca is calculated
microscopically within a model space of 1p1h - and 2p2h excitations. Anharmonic
effects in the centroid energies of the $0^+$- and $2^+$ components are found
to be small, in agreement with experimental observation. Firm conclusions about
the spreading w... | 1994-12-06 | 2009-10-28 | [
"nucl-th"
] | S. Nishizaki and J. Wambach |
nucl-th/9412006 | The String Model for Ultrarelativistic Nuclear Scattering | We review basic theoretical concepts to describe nuclear collisions at
ultrarelativistic energies. We discuss relativistic strings, Gribov--Regge
theory (GRT) of hadronic interactions and string models based on GRT, and
finally generalizations to nucleus--nucleus scattering.
- - - - - - - - - - - - - - - - - - - - - ... | 1994-12-06 | 2011-04-15 | [
"nucl-th",
"hep-ph"
] | Klaus Werner |
nucl-th/9412004 | The energy dependence of the $\pi N$ amplitude and the three-nucleon
interaction | By calculating the contribution of the $\pi-\pi$ three-body force to the
three-nucleon binding energy in terms of the $\pi N$ amplitude using
perturbation theory, we are able to determine the importance of the energy
dependence and the contribution of the different partial waves of the $\pi N$
amplitude to the three-nu... | 1994-12-05 | 2009-10-28 | [
"nucl-th"
] | T-Y Saito and I.R. Afnan |
nucl-th/9412002 | Effective Group Structure in the Interacting Boson Model | Spectrum generating algebras are used in various fields of physics as models
to determine quantum structure, including energy levels and transition
strengths. The advantage of such models is that their group structure allows an
extensive understanding of the system being studied. In addition they possess a
simple class... | 1994-12-02 | 2009-10-28 | [
"nucl-th"
] | N.D. Whelan (Niels Bohr Institute) |
nucl-th/9412003 | Nonlinear extension of the u(2) algebra as the symmetry algebra of the
planar anisotropic quantum harmonic oscillator with rational ratio of
frequencies and ``pancake'' nuclei | The symmetry algebra of the two-dimensional anisotropic quantum harmonic
oscillator with rational ratio of frequencies, which is characterizing
``pancake'' nuclei, is identified as a non-linear extension of the u(2)
algebra. The finite dimensional representation modules of this algebra are
studied and the energy eigenv... | 1994-12-02 | 2007-05-23 | [
"nucl-th"
] | Dennis Bonatsos, C. Daskaloyannis, P. Kolokotronis, D. Lenis |
nucl-th/9412001 | Low-energy theorem for a composite particle in mean scalar and vector
fields | For a relativistic particle moving in the presence of mean scalar and vector
fields, the energy at second order in the scalar field is shown to contain two
contributions in general. One is a momentum-dependent repulsive interaction
satisfying a low-energy theorem pointed out by Wallace, Gross and Tjon. The
other does n... | 1994-12-01 | 2008-11-26 | [
"nucl-th"
] | Michael C. Birse |
nucl-th/9411035 | Slow proton production in semi-inclusive deep inelastic scattering and
the pion cloud in the nucleon | The semi-inclusive cross section for producing slow protons in charged
current deep inelastic (anti-) neutrino scattering on protons and neutrons is
calculated as a function of the Bjorken $x$ and the proton momentum. The
standard hadronization models based upon the colour neutralization mechanism
appear to underestima... | 1994-11-30 | 2009-10-28 | [
"nucl-th"
] | A. Szczurek, G.D. Bosveld and A.E.L. Dieperink |
nucl-th/9411034 | The Drell-Hearn-Gerasimov Sum Rule | The Drell-Hearn-Gerasimov (DHG) sum rule relates the helicity structure of
the photoabsorption cross section to the anomalous magnetic moment of the
nucleon. It is based on Lorentz and gauge invariance, crossing symmetry,
causality and unitarity. A generalized DHG sum rule my be derived for virtual
photons. At low mome... | 1994-11-29 | 2009-12-15 | [
"nucl-th"
] | D. Drechsel (Universitaet Mainz) |
nucl-th/9411033 | String Models for Ultrarelativistic Hadronic Interactions: Concepts,
Limitations, and New Directions | After a brief description of the basic theoretical concepts of the string
model approach, we discuss the limitations of the method, at low energies, at
high energies, and at high particle densities. We also report on recent efforts
to overcome these limitations. | 1994-11-29 | 2007-05-23 | [
"nucl-th",
"hep-ph"
] | Klaus Werner |
nucl-th/9411032 | Temperatures of Fragment Kinetic Energy Spectra | Multifragmentation reactions without large compression in the initial state
(proton-induced reactions, reverse-kinematics, projectile fragmentation) are
examined, and it is verified quantitatively that the high temperatures obtained
from fragment kinetic energy spectra and lower temperatures obtained from
observables s... | 1994-11-28 | 2009-10-28 | [
"nucl-th"
] | Wolfgang Bauer |
nucl-th/9411031 | On the Off-Mass-Shell Deformation of the Nucleon Structure Function | The off-mass-shell behavior of the nucleon structure function, $F_2^N$, is
studied within an approach motivated by the Sullivan model. Deep inelastic
scattering on the nucleon is considered in the second order in the pion-nucleon
coupling constant, corresponding to the dressing of the bare nucleons by the
mesonic cloud... | 1994-11-25 | 2009-09-25 | [
"nucl-th",
"hep-ph"
] | A.Yu. Umnikov, F.C. Khanna and L.P. Kaptari |
nucl-th/9411030 | The Effective Non-Relativistic Hamiltonian for Electron-Nucleus
Interaction | We present the effective Hamiltonian for an electron-nucleus interaction in
non-relativistic limit up to the second order in the inverse nucleon mass. This
Hamiltonian takes into account the distortion of electron waves and allows to
calculate its effect as well as matrix elements for off-shell transitions in
$(e,e'p)$... | 1994-11-24 | 2007-05-23 | [
"nucl-th"
] | R.Ya.Kezerashvili (Dipartimento di Fisica, Universita'di Pisa and
INFN, Sezione di Pisa) |
nucl-th/9411029 | Double Pion Photoproduction in Nuclei | The inclusive A(gamma,pi+ pi-)X reaction is studied theoretically. A sizeable
enhancement of the cross section is found, in comparison with the scaling of
the deuteron cross section (sigma_deuteron * A/2). This enhancement is due to
the modifications in the nuclear medium of the gamma N ----> pi pi N amplitude
and the ... | 1994-11-24 | 2011-02-09 | [
"nucl-th"
] | J.A. Gomez Tejedor, M.J. Vicente-Vacas and E. Oset |
nucl-th/9411028 | An explanatory study of $^{11}$Li $\beta$ decay into $^9$Li and deuteron | The $\beta$-decay of $^{11}$Li into $^9$Li and {\it d} is studied using
simple halo wave functions of $^{11}$Li.
The sensitivity of the transition probability is elucidated on a description
of the halo part and on a choice of the potential between $^9$Li and {\it d} . | 1994-11-24 | 2009-10-28 | [
"nucl-th"
] | Y. Ohbayasi and Y. Suzuki |
nucl-th/9411025 | Pion and Eta Photoproduction in Nuclei | We calculate the quasifree photoproduction of pions and eta mesons on nuclei
from 12C to 208Pb. Assuming that for the quasifree process the cross sections
for pi/eta - photoproduction on a nucleon in medium are -- besides a lowering
due to Pauli blocking -- identical to those on a free nucleon, we use these as
an input... | 1994-11-23 | 2009-10-28 | [
"nucl-th"
] | A. Hombach, A. Engel, S. Teis, U. Mosel |
nucl-th/9411026 | Hadron-Hadron Interactions | The present status of the chiral approach to the $NN$ interaction as proposed
by Weinberg is discussed. The important role of correlation effects and
explicit vector meson ($\rho$, $\omega$) exchange in the dynamics of
baryon-baryon interactions is demonstrated. As an example, the inclusion of the
exchange of a correla... | 1994-11-23 | 2007-05-23 | [
"nucl-th"
] | K. Holinde |
nucl-th/9411027 | Importance of Baryon-Baryon Coupling in Hypernuclei | The $\Lambda N - \Sigma N$ coupling in $\Lambda$--hypernuclei and $\Lambda
\Lambda - \Xi N$ coupling in $\Lambda \Lambda$--hypernuclei produce novel
physics not observed in the conventional, nonstrange sector. Effects of
$\Lambda \leftrightarrow \Sigma$ conversion in $^3_{\Lambda}$H are reviewed.
The role of $\Lambda N... | 1994-11-23 | 2009-09-25 | [
"nucl-th"
] | B. F. Gibson, I. R. Afnan, J. A. Carlson, and D. R. Lehman |
nucl-th/9411021 | On the structure of the scalar mesons $f_0(975)$ and $a_0(980)$ | We investigate the structure of the scalar mesons $f_0(975)$ and $a_0(980)$
within realistic meson-exchange models of the $\pi\pi$ and $\pi\eta$
interactions. Starting from a modified version of the J\"ulich model for
$\pi\pi$ scattering we perform an analysis of the pole structure of the
resulting scattering amplitude... | 1994-11-22 | 2009-09-25 | [
"nucl-th",
"hep-ph"
] | G. Janssen, B. C. Pearce, K. Holinde, and J. Speth |
nucl-th/9411024 | Subthreshold kaon production and the nuclear equation of state | We reexamine in the relativistic transport model the dependence of kaon yield
on the nuclear equation of state in heavy ion collisions at energies that are
below the threshold for kaon production from the nucleon-nucleon interaction in
free space. For Au+Au collisions at 1 GeV/nucleon, we find that the kaon yield
measu... | 1994-11-22 | 2009-10-28 | [
"nucl-th"
] | G. Q. Li and C. M. Ko |
nucl-th/9411022 | A dynamical model for correlated two-pion-exchange in the pion-nucleon
interaction | A microscopic model for the $N\bar N\to\pi\pi$ process is presented in the
meson exchange framework, which in the pseudophysical region agrees with
available quasiempirical information. The scalar ($\sigma$) and vector ($\rho$)
piece of correlated two--pion exchange in the pion--nucleon interaction is then
derived via ... | 1994-11-22 | 2009-09-25 | [
"nucl-th"
] | C. Sch\"utz, J.W. Durso, K. Holinde, B.C. Pearce, and J. Speth
(Institut fuer Kernphysik, Forschungszentrum Juelich GmbH) |
nucl-th/9411023 | Charge Radii of Hyperons | The momentum projected SU(3) Chiral Color Dielectric Model (CCDM) is employed
to calculate the charge root mean square radii and charge distributions of
hyperons. We compare our result with Skyrme, MIT bag and Cloudy Bag model
results. The charge distribution of $\Lambda$ in CCDM is similar to that of
Skyrme Model pred... | 1994-11-22 | 2015-06-26 | [
"nucl-th"
] | Sarira Sahu |
nucl-th/9411020 | Enhancement of low-${m_t}$ kaons in AGS heavy-ion collisions | In the relativistic transport model, we show that the recently observed
enhancement of low-$m_t$ kaons ($K^+$ and $K^-$) in Si+Pb collisions at AGS can
be explained if a density isomer is introduced in the nuclear
equation-of-state. | 1994-11-21 | 2009-10-28 | [
"nucl-th"
] | G. Q. Li and C. M. Ko |
nucl-th/9411019 | Double Delta Production in the gamma d ---> p n pi+ pi- Reaction | We have studied the gamma d ---> Delta++ Delta- reaction which requires the
collaboration of the two nucleons in deuteron. By means of a model previously
developed for the gamma p ----> p pi+ pi- reaction, the two body exchange
currents leading to double delta creation are derived. A fair agreement is
obtained with a r... | 1994-11-21 | 2011-08-17 | [
"nucl-th"
] | J.A. Gomez Tejedor, E. Oset and H. Toki |
nucl-th/9411018 | Nuclear Breathing Mode in the Relativistic Mean Field Theory | The breathing-mode giant monopole resonance is studied within the framework
of the relativistic mean-field (RMF) theory. Using a broad range of parameter
sets, an analysis of constrained incompressibility and excitation energy of
isoscalar monopole states in finite nuclei is performed. It is shown that the
non-linear s... | 1994-11-20 | 2007-05-23 | [
"nucl-th"
] | M.V. Stoitsov, M.L. Cescato, P. Ring, and M.M. Sharma |
nucl-th/9411016 | Baryon Current Matrix Elements in a Light-Front Framework | Current matrix elements and observables for electro- and photo-excitation of
baryons from the nucleon are studied in a light-front framework. Relativistic
effects are estimated by comparison to a nonrelativistic model, where we use
simple basis states to represent the baryon wavefunctions. Sizeable
relativistic effects... | 1994-11-17 | 2014-11-18 | [
"nucl-th",
"hep-ph"
] | Simon Capstick (FSU), B.D. Keister (CMU and NSF) |
nucl-th/9411017 | On an Extended PCAC Relationship | We explore a consistent way to extend the partially conserved axial vector
current (PCAC) relationship and corresponding current algebra results in two
strongly correlated directions: 1) towards a search for a set of systematic
rules for the establishment of PCAC related relationships in a finite low
momentum transfer ... | 1994-11-17 | 2008-02-03 | [
"nucl-th",
"hep-ph"
] | S. Ying |
nucl-th/9411014 | Combined Description of $\bf{\overline{N}N}$ Scattering and Annihilation
With A Hadronic Model | A model for the nucleon-antinucleon interaction is presented which is based
on meson-baryon dynamics. The elastic part is the $G$-parity transform of the
Bonn $NN$ potential. Annihilation into two mesons is described in terms of
microscopic baryon-exchange processes including all possible combinations of
$\pi,\eta,\rho... | 1994-11-15 | 2008-11-26 | [
"nucl-th"
] | V. Mull and K. Holinde |
nucl-th/9411015 | Limits on the neutron-antineutron oscillation time from the stability of
nuclei | We refute a recent claim by Nazaruk that the limits placed on the free--space
neutron--antineutron oscillation time $\tau_{{n\bar n}}$ can be improved by
many orders of magnitude with respect to the estimate $\tau_{{n\bar
n}}>2(T_0/\Gamma)^{1/2}$, where $T_0$ is a measured limit on the annihilation
lifetime of a nucleu... | 1994-11-15 | 2010-11-01 | [
"nucl-th",
"hep-ph"
] | C. B. Dover, A. Gal and J.M. Richard |
nucl-th/9411013 | Generalized Pseudo-SU(3) Model and Pairing | The pseudo-SU(3) model is extended to explicitly include the spin and
proton-neutron degrees of freedom. A general formalism for evaluating matrix
elements of one-body and two-body tensor operators within this framework is
presented. The pairing interaction, which couples different irreducible
representations of SU(3),... | 1994-11-15 | 2009-10-28 | [
"nucl-th"
] | D.Troltenier, C.Bahri, and J.P.Draayer |
nucl-th/9411011 | Double beta decay of $^{100}Mo$: the deformed limit | The double beta decay of $^{100}Mo$ to the ground state and excited states of
$^{100}Ru$ is analysed in the context of the pseudo SU(3) scheme. The results
of this deformed limit are compared with the vibrational one based on the QRPA
formalism. Consistency between the deformed limit and the experimental
information is... | 1994-11-14 | 2008-11-26 | [
"nucl-th"
] | Jorge G. Hirsch, O. Casta\~nos, P. O. Hess and Osvaldo Civitarese |
nucl-th/9411010 | A stopped Delta-Matter Source in Heavy Ion Collisions at 10 GeV/n | We predict the formation of highly dense baryon-rich resonance matter in
Au+Au collisions at AGS energies. The final pion yields show observable signs
for resonance matter. The Delta(1232) resonance is predicted to be the dominant
source for pions of small transverse momenta. Rescattering effects --
consecutive excitat... | 1994-11-14 | 2008-11-26 | [
"nucl-th",
"hep-ph"
] | Markus Hofmann, Raffaele Mattiello, Heinz Sorge, Horst Stoecker and
Walter Greiner |
nucl-th/9411012 | Nuclear Multifragmentation Critical Exponents | We show that the critical exponents of nuclear multi-fragmentation have not
been determined conclusively yet. | 1994-11-14 | 2009-02-11 | [
"nucl-th"
] | Wolfgang Bauer and William Friedman |
nucl-th/9411009 | A quark-cluster description of the EMC effect (Seminar given in the 18th
Course of the "International School on Nuclear Physics", 16-23/9/'94, Erice,
IT. To be published in Progress in Particle and Nuclear Physics, Vol. 34,
Pergamon Press) | The response of a nucleus composed of nucleons and confined quarks is
calculated in a non-relativistic cluster model and is shown to be a convolution
of responses of, respectively, a nucleus with interacting point-nucleons and of
a nucleon composed of quarks. We further show that the apparent off-shell
energy in the ex... | 1994-11-13 | 2011-04-15 | [
"nucl-th"
] | S.A. Gurvitz and A.S. Rinat (Weizmann Institute of Science) |
nucl-th/9411008 | Spin dependent Momentum Distributions in Deformed Nuclei | We study the properties of the spin dependent one body density in momentum
space for odd--A polarized deformed nuclei within the mean field approximation.
We derive analytic expressions connecting intrinsic and laboratory momentum
distributions. The latter are related to observable transition densities in
{\bf p}--spac... | 1994-11-11 | 2015-06-26 | [
"nucl-th"
] | J.A. Caballero, E. Garrido, E. Moya de Guerra, P. Sarriguren, and J.M.
Udias |
nucl-th/9411006 | Investigation of the Neutron Form Factors by Inclusive Quasi-Elastic
Scattering of Polarized Electrons off Polarized $^{3}$He: A Theoretical
Overview | The theory of quasi-elastic inclusive scattering of polarized leptons off
polarized $^3$He is critically reviewed and the origin of different expressions
for the polarized nuclear response function appearing in the literature is
explained. The sensitivity of the longitudinal asymmetry upon the neutron form
factors is t... | 1994-11-11 | 2009-09-25 | [
"nucl-th"
] | C. Ciofi degli Atti, E. Pace and G. Salm\`e |
nucl-th/9411007 | Probing Deformed Orbitals with \vec{A}(\vec{e}, e' N)B reactions | We present results for response functions and asymmetries in the nuclear
reactions 37\vec{Ar}(\vec{e},e'n)36Ar and 37\vec{K}(\vec{e},e' p)36Ar at
quasifree kinematics. We compare PWIA results obtained using deformed HF wave
functions with PWIA and DWIA results obtained assuming a spherical mean field.
We show that the ... | 1994-11-11 | 2009-10-28 | [
"nucl-th"
] | E. Garrido, J.A. Caballero, E. Moya de Guerra, P. Sarriguren, and J.M.
Udias |
nucl-th/9411005 | Momentum and Energy Distributions of Nucleons in Finite Nuclei due to
Short-Range Correlations | The influence of short-range correlations on the momentum and energy
distribution of nucleons in nuclei is evaluated assuming a realistic
meson-exchange potential for the nucleon-nucleon interaction. Using the
Green-function approach the calculations are performed directly for the finite
nucleus $^{16}$O avoiding the l... | 1994-11-08 | 2009-10-28 | [
"nucl-th"
] | H. M\"uther, A. Polls and W.H. Dickhoff |
nucl-th/9411003 | Closed shells at drip-line nuclei | The shell structure of magic nuclei far from stability is discussed in terms
of the self-consistent spherical Hartree-Fock-Bogoliubov theory. In particular,
the sensitivity of the shell-gap sizes and the two-neutron separation energies
to the choice of particle-hole and particle-particle components of the
effective int... | 1994-11-07 | 2015-06-26 | [
"nucl-th"
] | J. Dobaczewski, W. Nazarewicz, and T.R. Werner |
nucl-th/9411004 | Color Transparency Assumptions | An exactly solvable model is used to investigate the assumptions behind color
transparency. | 1994-11-07 | 2009-09-25 | [
"nucl-th"
] | D. Makovoz and G.A. Miller |
nucl-th/9411002 | Comparison of potential models with the np scattering data below 350 MeV | As a follow-up on our earlier paper we calculate the $\chi^{2}$ of various
$N\!N$ potential models with respect to the $np$ scattering data. We find that
only the most recent potential models give a reasonably good description of
these data. Almost none of the potentials is truly an $N\!N$ potential in the
sense that i... | 1994-11-04 | 2009-09-25 | [
"nucl-th"
] | Vincent Stoks and J.J. de Swart |
nucl-th/9411001 | Time Reversal Invariance in the beta-Decays of A = 8 Nuclei | We examine time reversal invariance in the beta-decays of 8B(2+) and 8Li(2+)
to 8Be(2+) in detail, with particular attention to final state interactions of
the two alpha particles from the decay of 8Be, and of the electron (positron)
with the daughter nucleus. A R-matrix formulation is used, with the initial
state desc... | 1994-11-01 | 2009-10-28 | [
"nucl-th"
] | S. Ying and E. M. Henley |
nucl-th/9410049 | Where the Nuclear Pions are | Three recent experiments, which looked at pionic effects in nuclei have
concluded that there are no excess pions. This puts into serious question the
conventional meson-exchange picture of the nucleon-nucleon interaction. Based
on arguments of partial restoration of chiral symmetry with density we propose
a resolution ... | 1994-10-31 | 2009-10-28 | [
"nucl-th"
] | G.E. Brown, M. Buballa, Zi Bang Li and J. Wambach |
nucl-th/9410048 | Auxiliary potential in no-core shell-model calculations | The Lee-Suzuki iteration method is used to include the folded diagrams in the
calculation of the two-body effective interaction $v^{(2)}_{\rm eff}$ between
two nucleons in a no-core model space. This effective interaction still depends
upon the choice of single-particle basis utilized in the shell-model
calculation. Us... | 1994-10-31 | 2008-11-26 | [
"nucl-th"
] | D. C. Zheng, B. R. Barrett, J. P. Vary, and H. M\"uther |
nucl-th/9410045 | Charge Exchange Processes between Excited Helium and Fully Stripped Ions | We made a classical trajectory Monte Carlo (CTMC) calculation of state
selective cross sections for processes between some light ions and excited
helium. The results, useful for analysis of spectroscopic data of fusion
devices, are in good agreement with theoretical predictions of scaling laws. | 1994-10-28 | 2009-10-28 | [
"nucl-th"
] | L. Salasnich and F. Sattin |
nucl-th/9410047 | Time Reversal Symmetry Breaking Effects in Resonant Nuclear Reactions | We incorporate time reversal symmetry breaking (TRSB) effects into the theory
of compound nuclear reactions. We show that the only meaningful test of TRSB in
the overlapping resonances regime is through the study of cross-section
correlations. The effect is channel-dependent. In the isolated resonance
regime, we employ... | 1994-10-28 | 2015-06-26 | [
"nucl-th"
] | H. Feshbach, M.S. Hussein and A.K. Kerman |
nucl-th/9410046 | Octupole Correlations in Excited Bands of Superdeformed Dy-152 | RPA calculations, based on the cranked shell model, are performed for
superdeformed \dy\ in which five excited bands have been found recently. We
show that characteristic features of the observed dynamical moments of inertia
are well accounted for by explicitly taking the octupole correlations into
account. Importance ... | 1994-10-28 | 2009-10-28 | [
"nucl-th"
] | T.Nakatsukasa, K.Matsuyanagi, S.Mizutori and W.Nazarewicz |
nucl-th/9410044 | Impact-Parameter Dependence of Multiple Lepton-pair Production from
Electromagnetic Fields | In relativistic heavy-ion collisions, the strong Lorentz-contracted
electromagnetic fields are capable of producing copious numbers of lepton pairs
through the two-photon mechanism. Monte Carlo techniques have been developed
that allow the exact calculation of production by this mechanism when a
semi-classical approxim... | 1994-10-26 | 2009-09-25 | [
"nucl-th"
] | M. C. Guclu, J. C. Wells, A. S. Umar, M. R. Strayer, D. J. Ernst |
nucl-th/9410043 | Isospin Recoupling and Bose-Einstein Pion Correlations in
Nucleon-Antinucleon Annihilations | We study the effect of isospin projections on a two source picture of
coherent pions coming from nucleon-antinucleon annihilation. We show that
important Hanbury-Brown Twiss correlations among like charge pion pairs
compared with unlike arise from these isospin projections. | 1994-10-25 | 2008-11-26 | [
"nucl-th"
] | R. D. Amado, F. Cannata, J-P. Dedonder, M. P. Locher, and Yang Lu |
nucl-th/9410042 | The Delta I=4 Bifurcation in Superdeformed Bands | The origin of the Delta I=4 staggering effect which has recently been
observed in several superdeformed bands is discussed. The Hamamoto and
Mottelson model, which is based on a phenomenological parametrization of the
hamiltonian as a quartic function of angular momentum, is analyzed. A stability
of the description wit... | 1994-10-25 | 2009-09-25 | [
"nucl-th"
] | P. Magierski, K. Burzynski, J. Dobaczewski, and W. Nazarewicz |
nucl-th/9410039 | Measurement of the Reaction $^{12}C(\nu_\mu,\mu^-) X$ Near Threshold | The reaction $^{12}C(\nu_\mu,\mu^-) X$ has been measured near threshold using
a $\pi ^+$ decay-in-flight $\nu_\mu$ beam from the Los Alamos Meson Physics
Facility and a massive liquid scintillator neutrino detector (LSND). In the
energy region $123.7 < E_\nu < 280$ MeV, the measured spectral shape is
consistent with th... | 1994-10-21 | 2008-11-26 | [
"nucl-th",
"nucl-ex"
] | M. Albert, et.al. (the LSND Collaboration) |
nucl-th/9410041 | Self weakening of the tensor interaction in a nucleus | We examine several ``landmarks'' for the effects of the tensor interaction on
the properties of light nuclei. These were usually discussed in the context of
small-space shell-model calculations. We show, using $G$ matrices derived from
a realistic nucleon-nucleon potential, that when the model space is small
(e.g., $0\... | 1994-10-21 | 2009-09-25 | [
"nucl-th"
] | L. Zamick, D. C. Zheng, and M. Fayache |
nucl-th/9410037 | Quadrupole Collective States in a Large Single-J Shell | We discuss the ability of the generator coordinate method (GCM) to select
collective states in microscopic calculations. The model studied is a
single-$j$ shell with hamiltonian containing the quadrupole-quadrupole
interaction. Quadrupole collective excitations are constructed by means of the
quadrupole single-particle... | 1994-10-21 | 2009-09-25 | [
"nucl-th"
] | K. Burzynski and J. Dobaczewski |
nucl-th/9410038 | The Role of Final State Interactions in Quasielastic $^{56}$Fe$(e,e')$
Reactions at large $|\vec q|$ | A relativistic finite nucleus calculation using a Dirac optical potential is
used to investigate the importance of final state interactions [FSI] at large
momentum transfers in inclusive quasielastic electronuclear reactions. The
optical potential is derived from first-order multiple scattering theory and
then is used ... | 1994-10-21 | 2009-10-28 | [
"nucl-th"
] | C.R. Chinn |
nucl-th/9410040 | Delta--Excitation and Exchange Corrections for NN--Bremsstrahlung | The role of the relativistic amplitudes for a number of ${\cal O}(k)$
processes usually neglected in potential model calculations of
NN--bremsstrahlung is investigated. In particular, we consider the
$\Delta$--excitation pole contributions related to the one--pion and one--rho
exchange and in addition include the excha... | 1994-10-21 | 2009-09-25 | [
"nucl-th",
"hep-ph"
] | M. Jetter and H. W. Fearing |
nucl-th/9410036 | Isospin Dependence of the Spin-Orbit Force and Effective Nuclear
Potentials | The isospin dependence of the spin-orbit potential is investigated for an
effective Skyrme like energy-functional suitable for density-dependent
Hartree-Fock calculations. The magnitude of the isospin dependence is obtained
from a fit to experimental data on finite spherical nuclei. It is found to be
close to that of r... | 1994-10-20 | 2016-02-17 | [
"nucl-th"
] | M.M. Sharma, G.A. Lalazissis, J. Koenig, and P. Ring (Max Planck
Institut fuer Astrophysik, and Technische Universit\"at M\"unchen, Garching,
Germany) |
nucl-th/9410032 | A theoretical approach to the (pion^{-}, gamma gamma) reaction in nuclei | We have studied the pion^{-} capture in nuclei leading to two photons, using
improved many body methods which have been tested with success in one photon
pion^{-} radiative capture, muon^{-} capture and neutrino scattering. The
qualitative features of the experimental data are reproduced but there are
still some disagr... | 1994-10-19 | 2009-10-28 | [
"nucl-th"
] | A.Gil and E.Oset |
nucl-th/9410034 | Mean Field Studies of Exotic Nuclei} | {Full three dimensional static and dynamic mean field calculations using
collocation basis splines with a Skyrme type Hamiltonian are described. This
program is developed to address the difficult theoretical challenges offered by
exotic nuclei. Ground state and deformation properties are calculated using
static Hartree... | 1994-10-19 | 2009-09-25 | [
"nucl-th"
] | C. R. Chinn, A. S. Umar, M. Valli\`eres and M. R. Strayer |
nucl-th/9410030 | Total Cross Sections for Neutron Scattering | Measurements of neutron total cross-sections are both extensive and extremely
accurate. Although they place a strong constraint on theoretically constructed
models, there are relatively few comparisons of predictions with experiment.
The total cross-sections for neutron scattering from $^{16}$O and $^{40}$Ca are
calcul... | 1994-10-19 | 2009-09-25 | [
"nucl-th"
] | C.R. Chinn, Ch. Elster, R.M. Thaler, S.P. Weppner |
nucl-th/9410033 | Correlations in a Many-Body Calculation of $^{\bf 11}$Li | A many-body calculation of $^{11}$Li is presented where the only input is the
well-tested, finite-range {\it D1S} effective interaction of {\it Gogny}.
Pairing correlations are included in a constrained Hartree-Fock-Bogolyubov
calculation, while long-range collective correlations are introduced using a
GCM derived calc... | 1994-10-19 | 2009-09-25 | [
"nucl-th"
] | C. R. Chinn, J. Decharg\'e and J.-F. Berger |
nucl-th/9410035 | Widths of $\Xi$ Hypernuclear States | The $\Lambda$ and neutron decay widths of $\Xi$ hypernuclear states, based on
calculated $\Xi N \to \lala$ mixing amplitudes, are estimated. The widths which
result from using the Nijmegen Model D interaction are sufficiently small, of
order 1.5 MeV, that experiments to observe $\Xi$ hypernuclear states using the
$(K^-... | 1994-10-19 | 2009-09-25 | [
"nucl-th"
] | D.J. Millener, C. B. Dover, and A. Gal |
nucl-th/9410031 | Variations of Hadron Masses and Matter Properties in Dense Nuclear
Matter | Using a self-consistent quark model for nuclear matter we investigate
variations of the masses of the non-strange vector mesons, the hyperons and the
nucleon in dense nuclear matter (up to four times the normal nuclear density).
We find that the changes in the hadron masses can be described in terms of the
value of the... | 1994-10-19 | 2008-11-26 | [
"nucl-th"
] | K. Saito and A.W. Thomas |
nucl-th/9410027 | Hexadecapole Interaction and the Delta I=4 Staggering Effect in
Rotational Bands | A role of the multipole interaction in the description of the $\triangle I$=4
staggering phenomenon is investigated in a model consisting of a single-$j$
shell filled by identical nucleons. Exact diagonalization of the
quadrupole-plus-hexadecapole Hamiltonian shows that the
hexadecapole-hexadecapole interaction can pro... | 1994-10-18 | 2015-06-26 | [
"nucl-th"
] | K. Burzynski, P. Magierski, J. Dobaczewski, and W. Nazarewicz |
nucl-th/9410029 | Application of Multiple Scattering Theory to Lower Energy Elastic
Nucleon-Nucleus Reactions | The optical model potentials for nucleon-nucleus elastic scattering at
$65$~MeV are calculated for $^{12}$C, $^{16}$O, $^{28}$Si, $^{40}$Ca,
$^{56}$Fe, $^{90}$Zr and $^{208}$Pb in first order multiple scattering theory,
following the prescription of the spectator expansion, where the only inputs
are the free NN potenti... | 1994-10-18 | 2009-09-25 | [
"nucl-th"
] | C.R. Chinn, Ch. Elster, R.M. Thaler, S.P. Weppner |
nucl-th/9410026 | Thermal Equilibration and Expansion in Nucleus-Nucleus Collision at the
AGS | The rather complete data set of hadron yields from central Si + A collisions
at the Brookhaven AGS is used to test whether the system at freeze-out is in
thermal and hadro-chemical equilibrium. Rapidity and transverse momentum
distributions are discussed with regards to the information they provide on
hydrodynamic flow... | 1994-10-18 | 2009-10-28 | [
"nucl-th"
] | P. Braun-Munzinger, J. Stachel, J.P. Wessels and N. Xu |
nucl-th/9410028 | Collision rates for $\bbox{\rho}$, $\bbox{\omega}$ and $\bbox{\phi}$
mesons at nonzero temperature | The $\omega$ and $\phi$ mesons are exceptionally narrow in vacua being about
8 and 4 MeV. At finite temperature they will scatter with other hadrons in
their approach to equilibrium and thereafter. These dynamics induce broadening
to the already unstable vector mesons which is calculated in the framework of
relativisti... | 1994-10-18 | 2009-10-28 | [
"nucl-th"
] | Kevin Haglin |
nucl-th/9410024 | Nuclear transparencies for nucleons, knocked-out under various
semi-inclusive conditions | Using hadron dynamics we calculate nuclear transparencies for protons,
knocked-out in high-$Q^2$, semi-inclusive reactions. Predicted transparencies
are, roughly half a standard deviation above the NE18 data. The latter contain
the effects of binned proton missing momenta and mass, and of finite detector
acceptances. I... | 1994-10-18 | 2009-10-28 | [
"nucl-th"
] | A.S. Rinat and M.F. Taragin |
nucl-th/9410025 | Semiclassical expansions up to $\hbar^4$-order in relativistic nuclear
physics | We present the first calculation of the $\hbar^4$-Wigner--Kirkwood
corrections to a relativistic system of fermions in the presence of external
scalar and vector potentials. The method we propose allows to compute
efficiently semiclassical corrections to one body operators such as mean
energies and local densities. It ... | 1994-10-18 | 2009-09-25 | [
"nucl-th"
] | J. Caro, E. Ruiz Arriola and L.L. Salcedo |
nucl-th/9410023 | Nuclear Charge Density Distributions from Elastic Electron Scattering
Data | The model independent procedure of extracting charge density distributions
from elastic electron scattering data is investigated. The charge density
distributions are expanded on an orthonormal basis and the parameters of the
expansions are fixed by the comparison with the experimental data. Two bases
with different an... | 1994-10-17 | 2019-08-17 | [
"nucl-th"
] | R.Anni, G.Co' and P.Pellegrino (Univ. of Lecce Italy) |
nucl-th/9410022 | The apparent Coulomb reacceleration of neutrons in electrodissociation
of the deuteron | We demonstrate that the final state $p$-$n$ interaction in the reaction of
electrodissociation of the deuteron at large $Q^{2}$ in a static external field
leads to the apparent reacceleration of neutrons. The shift of the neutron
velocity from the velocity of the deuteron beam is related to the
quantum-mechanical forwa... | 1994-10-17 | 2009-09-25 | [
"nucl-th"
] | A. Bianconi, S. Jeschonnek, N.N.Nikolaev, B.G.Zakharov |
nucl-th/9410021 | Chiral Quark Dynamics in Dense Nuclear Matter | We consider a new approach to the description of dense nuclear matter in the
framework of chirally symmetric, quark-based hadron models. As previously in
the Skyrme model, the dense environment is described in terms of hyperspherical
cells of unit baryon number. The intrinsic curvature of these cells generates a
new ga... | 1994-10-15 | 2009-10-28 | [
"nucl-th",
"hep-ph"
] | Hilmar Forkel |
nucl-th/9410020 | q-deformed pairing-vibrations | Boson creation operators constructed from linear combinations of q- deformed
zero coupled nucleon pair operators acting on the nucleus (A,0), are used to
derive pp-RPA equations. The solutions of these equations are the pairing
vibrations in (A${\underline{+}}$2) nuclei. For the $0^+_1$ and $0^+_2$ states
of the nucleu... | 1994-10-12 | 2008-11-26 | [
"nucl-th"
] | S. Shelly Sharma, and N.K. Sharma |
nucl-th/9410019 | The Spectral Function for Finite Nuclei in the Local Density
Approximation | The spectral function for finite nuclei is computed within the framework of
the Local Density Approximation, starting from nuclear matter spectral
functions obtained with a realistic nucleon-nucleon interaction. The spectral
function is decomposed into a single-particle part and a ''correlated'' part;
the latter is tre... | 1994-10-10 | 2008-11-26 | [
"nucl-th"
] | D. Van Neck, A.E.L. Dieperink and E. Moya de Guerra |
nucl-th/9410018 | Pion Content of the Nucleon in Polarized Semi-Inclusive D.I.s | An explicit pionic component of the nucleon may be identified by measuring
polarized $\Delta^{++}$ fragments produced in deep-inelastic scattering off
polarized protons. The pion-exchange model predicts highly correlated
polarizations of the $\Delta^{++}$ and target proton, in marked contrast with
the competing diquark... | 1994-10-10 | 2007-05-23 | [
"nucl-th",
"hep-ph"
] | W.Melnitchouk (U.Regensburg) and A.W.Thomas (U.Adelaide) |
nucl-th/9410017 | Kaon flow as a probe of the kaon potential in nuclear medium | The flow of kaons, i.e., the average kaon transverse momentum as a function
of rapidity, and the associated flow parameter in heavy-ion collisions at
SIS/GSI energies is investigated in the relativistic transport model. It is
found that the pattern of kaon flow at the final stage is sensitive to the kaon
potential used... | 1994-10-07 | 2010-04-06 | [
"nucl-th"
] | G. Q. Li, C. M. Ko, and B. A. Li |
nucl-th/9410016 | Spectroscopic Amplitudes for One--Nucleon Transfer Between 1p0f--Shell
Nuclei | Spectroscopic amplitudes are calculated for one--nucleon transfer between
low--lying, normal--parity states of nuclei in the lower part of the
1p$0\,$f--shell. Calculations are performed using shell--model wave functions
obtained from the diagonalization procedure of a nuclear Hamiltonian in the
space given by the comp... | 1994-10-07 | 2007-05-23 | [
"nucl-th"
] | E. Kwa{\'s}niewicz, H. Herndl and H. Oberhummer |
nucl-th/9410014 | Photon-Photon Luminosities in Relativistic Heavy Ion Collisions at LHC
Energies | Effective photon-photon luminosities are calculated for various realistic
hadron collider scenarios. The main characteristics of photon-photon processes
at relativistic heavy-ion colliders are established and compared to the
corresponding photon-photon luminosities at electron-positron and future Photon
Linear Collider... | 1994-10-06 | 2009-10-28 | [
"nucl-th"
] | Kai Hencken, Dirk Trautmann, and Gerhard Baur |
nucl-th/9410015 | Relativistic models for quasielastic $(e,e')$\ at large momentum
transfers | Inclusive quasielastic response functions are calculated for electron
scattering in a relativistic model including momentum dependent scalar and
vector mean fields. The momentum dependence of the mean fields is taken from
Dirac optical fits to proton nucleus scattering and is important in describing
data at momentum tr... | 1994-10-06 | 2009-09-25 | [
"nucl-th"
] | Hungchong Kim, C. J. Horowitz and M. R. Frank |
nucl-th/9410013 | Variational Monte Carlo Calculations of $^3$H and $^4$He with a
relativistic Hamiltonian - II | In relativistic Hamiltonians the two-nucleon interaction is expressed as a
sum of $\tilde{v}_{ij}$, the interaction in the ${\bf P}_{ij}=0$ rest frame,
and the ``boost interaction'' $\delta v({\bf P}_{ij})$ which depends upon the
total momentum ${\bf P}_{ij}$ and vanishes in the rest frame. The $\delta v$
can be regard... | 1994-10-05 | 2009-10-28 | [
"nucl-th"
] | J.L. Forest and V.R. Pandharipande and J. Carlson and R. Schiavilla |
nucl-th/9410009 | Parity Mixed Doublets in A = 36 Nuclei | The $\gamma$-circular polarizations ($P_{\gamma}$) and asymmetries
($A_{\gamma}$) of the parity forbidden M1 + E2 $\gamma$-decays: $^{36}Cl^{\ast}
(J^{\pi} = 2^{-}; T = 1; E_{x} = 1.95 $ MeV) $\rightarrow$ $^{36}Cl (J^{\pi} =
2^{+}; T = 1; g.s.)$ and $^{36}Ar^{\ast} (J^{\pi} = 2^{-}; T = 0; E_{x} = 4.97
$ MeV) $\righta... | 1994-10-05 | 2008-11-26 | [
"nucl-th"
] | Mihai Horoi |
nucl-th/9410010 | Staggering of the Nuclear Charge Radii in a Superfluid Model with Good
Particle Number | A simple superfluid model with an effective four body interaction of monopole
pairing type is used to explain the staggering of the charge radii in the
isotope chains. The contribution of deformation and of the particle number
projection are analyzed for the Sn isotopes. Good results are obtained for the
staggering par... | 1994-10-05 | 2009-09-25 | [
"nucl-th"
] | Mihai Horoi |
nucl-th/9410008 | Chaos {\sl vs} Thermalization in the Nuclear Shell Model | Generic signatures of quantum chaos found in realistic shell model
calculations are compared with thermal statistical equilibrium. We show the
similarity of the informational entropy of individual eigenfunctions in the
mean field basis to the thermodynamical entropy found from the level density.
Mean occupation numbers... | 1994-10-05 | 2009-09-25 | [
"nucl-th"
] | Mihai Horoi, Vladimir Zelevinsky and B. Alex Brown |
nucl-th/9410011 | Pedagogical Studies of Relativistic Hamiltonians | Relativistic Hamiltonians are defined as the sum of relativistic one-body
kinetic energies, two- and many-body interactions and their boost corrections.
We review the calculation of the boost correction of the two-body interaction
from commutation relations of the Poincare group and show that its important
terms can be... | 1994-10-05 | 2009-09-25 | [
"nucl-th"
] | J. L. Forest and V. R. Pandharipande and J. L. Friar |
nucl-th/9410007 | Radiative capture on neutron rich nuclei | The $({\rm n},\gamma)$--cross sections for neutron--rich oxygen isotopes have
been calculated in the direct capture model. The experimental data for
${^{18}{\rm O}}({\rm n},\gamma){^{19}{\rm O}}$ can be reproduced using this
model. Compared to previous work the cross section for ${^{19-21}{\rm O}}({\rm
n},\gamma){^{20-... | 1994-10-05 | 2015-06-26 | [
"nucl-th"
] | Karl Gr\"un, Rudolf Pichler and Heinz Oberhummer |
nucl-th/9410006 | Relativistic Effect on Low-Energy Nucleon-Deuteron Scattering | The relativistic effect on differential cross sections, nucleon-to-nucleon
and nucleon-to-deuteron polarization transfer coefficients, and the spin
correlation function, of nucleon-deuteron elastic scattering is investigated
employing several three-dimensional relativistic three-body equations and
several nucleon-nucle... | 1994-10-05 | 2009-09-25 | [
"nucl-th"
] | Sadhan K. Adhikari and Lauro Tomio |
nucl-th/9410012 | Theory of fermion to boson mappings: old wine in new bottles | After a brief review of various mappings of fermion pairs to bosons, we
rigorously derive a general approach. Following the methods of Marumori and
Otsuka, Arima, and Iachello, our approach begins with mapping states and
constructs boson representations that preserve fermion matrix elements. In
several cases these repr... | 1994-10-05 | 2009-09-25 | [
"nucl-th"
] | Joseph N. Ginocchio and Calvin W. Johnson |
nucl-th/9410004 | Fine Structure Discussion of Parity-Nonconserving Neutron Scattering at
Epithermal Energies | The large magnitude and the sign correlation effect in the parity
non-conserving resonant scattering of epithermal neutrons from $^{232}$Th is
discussed in terms of a non-collective $2p-1h$ local doorway model. General
conclusions are drawn as to the probability of finding large parity violation
effects in other region... | 1994-10-04 | 2015-06-26 | [
"nucl-th"
] | M. S. Hussein, A. K. Kerman and C-Y Lin |
nucl-th/9410005 | Physics and Signatures of the Quark - Gluon Plasma | This is a critical review of the various observables that have been proposed
to signal the change from dense hadronic matter to a quark-gluon plasma at high
temperature or baryon density. I discuss current models of quark-gluon plasma
formation in relativistic heavy ion collisions and analyze the virtues and
ambiguitie... | 1994-10-04 | 2014-11-18 | [
"nucl-th",
"hep-ph"
] | Berndt Mueller |
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