scholarly journals Momentum dependence of symmetry potential in asymmetric nuclear matter for transport model calculations

2003 ◽  
Vol 67 (3) ◽  
Author(s):  
C. B. Das ◽  
S. Das Gupta ◽  
C. Gale ◽  
Bao-An Li
Keyword(s):  
Nuclear Matter ◽  
Transport Model ◽  
Momentum Dependence ◽  
Model Calculations ◽  
Asymmetric Nuclear Matter ◽  
Symmetry Potential

scholarly journals Isospin Physics in Heavy-Ion Collisions at Intermediate Energies

1998 ◽  
Vol 07 (02) ◽  
pp. 147-229 ◽  
Author(s):  
Bao-An Li ◽  
Che Ming Ko ◽  
Wolfgang Bauer
Keyword(s):  
Equation Of State ◽  
Nuclear Matter ◽  
Cross Sections ◽  
Heavy Ion Collisions ◽  
Transport Model ◽  
Transient State ◽  
Heavy Ion ◽  
Nucleon Nucleon ◽  
Asymmetric Nuclear Matter ◽  
Ion Collisions

In nuclear collisions induced by stable or radioactive neutron-rich nuclei a transient state of nuclear matter with an appreciable isospin asymmetry as well as thermal and compressional excitation can be created. This offers the possibility to study the properties of nuclear matter in the region between symmetric nuclear matter and pure neutron matter. In this review, we discuss recent theoretical studies of the equation of state of isospin-asymmetric nuclear matter and its relations to the properties of neutron stars and radioactive nuclei. Chemical and mechanical instabilities as well as the liquid-gas phase transition in asymmetric nuclear matter are investigated. The in-medium nucleon-nucleon cross sections at different isospin states are reviewed as they affect significantly the dynamics of heavy ion collisions induced by radioactive beams. We then discuss an isospin-dependent transport model, which includes different mean-field potentials and cross sections for the proton and neutron, and its application to these reactions. Furthermore, we review the comparisons between theoretical predictions and available experimental data. In particular, we discuss the study of nuclear stopping in terms of isospin equilibration, the dependence of nuclear collective flow and balance energy on the isospin-dependent nuclear equation of state and cross sections, the isospin dependence of total nuclear reaction cross sections, and the role of isospin in preequilibrium nucleon emissions and subthreshold pion production.

STUDY OF PARTICLE CORRELATIONS AT RHIC ENERGIES WITHIN THE QUARK-GLUON STRING MODEL

2007 ◽  
Vol 16 (07n08) ◽  
pp. 2116-2122
Author(s):  
L. BRAVINA ◽  
L. V. MALININA ◽  
I. ARSENE ◽  
M. S. NILSSON ◽  
L. I. SARYCHEVA ◽  
...  
Keyword(s):  
Experimental Data ◽  
Transport Model ◽  
Elliptic Flow ◽  
String Model ◽  
Heavy Ion ◽  
Momentum Dependence ◽  
Relativistic Heavy Ion Collider ◽  
Model Calculations ◽  
Quark Gluon String Model ◽  
Ion Collisions

The experimental data obtained by the Relativistic Heavy Ion Collider (RHIC) have shown surprisingly large elliptic flow and small correlation (Hanbury-Brown-Twiss, HBT) radii. Quark-Gluon String Model (QGSM) is found to reproduce well many of the flow features in heavy-ion collisions, whereas the models based on the longitudinal excitation of strings essentially underpredict the elliptic flow seen at RHIC. Our aim is to study the HBT correlations within the same QGSM approach. The transverse momentum dependence of correlation radii R long , R out and R side obtained in the QGSM is compared with the UrQMD transport model calculations and the experimental STAR data at [Formula: see text] for the central Au + Au collisions. It appears that the correlation radii obtained in the QGSM from the analysis of all pions are essentially smaller than the experimental ones, while for pions coming from the decay of resonances the agreement with the experimental data is very good.

Thermal effects in hot and dilute homogeneous asymmetric nuclear matter

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
Vishal Parmar ◽  
Manoj K. Sharma ◽  
S. K. Patra
Keyword(s):  
Nuclear Matter ◽  
Thermal Effects ◽  
Asymmetric Nuclear Matter

scholarly journals η mesons in hot and dense asymmetric nuclear matter

2020 ◽  
Vol 102 (6) ◽  
Author(s):  
Rajesh Kumar ◽  
Arvind Kumar
Keyword(s):  
Nuclear Matter ◽  
Asymmetric Nuclear Matter

EQUATION OF STATE OF ASYMMETRIC NUCLEAR MATTER WITH GOGNY AND COULOMB INTERACTIONS

1990 ◽  
Vol 05 (14) ◽  
pp. 1071-1080 ◽  
Author(s):  
S. W. HUANG ◽  
M. Z. FU ◽  
S. S. WU ◽  
S. D. YANG
Keyword(s):  
Equation Of State ◽  
Nuclear Matter ◽  
Coulomb Interaction ◽  
Chemical Potential ◽  
Compression Modulus ◽  
Nucleon Nucleon ◽  
Effective Density ◽  
Coulomb Interactions ◽  
Asymmetric Nuclear Matter ◽  
Nucleon Nucleon Interaction

The equation of state of the asymmetric nuclear matter is calculated with the Gogny D1 effective density-dependent nucleon-nucleon interaction and the Coulomb interaction in the framework of the finite-temperature HF method with the rearrangement term. The dependence of the thermodynamical properties such as the critical temperature of the liquid-gas phase transition, the chemical potential, the compression modulus and the entropy on the Coulomb interaction in nuclear matter is treated by using a shielded two-body Coulomb potential and this method has been found to be a reasonable and effective approach.

scholarly journals Sum rules and correlations in asymmetric nuclear matter

2006 ◽  
Vol 73 (2) ◽  
Author(s):  
A. Rios ◽  
A. Polls ◽  
H. Müther
Keyword(s):  
Nuclear Matter ◽  
Sum Rules ◽  
Asymmetric Nuclear Matter
Sign in / Sign up

Export Citation Format

Share Document