Probing the density dependence of the symmetry potential at low and high densities

Journal Article · Thu Sep 01 04:00:00 EDT 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.034613· OSTI ID:20698996

Qingfeng, Li ^[1]; Zhuxia, Li ^[2]; Soff, Sven; Bleicher, Marcus ^[3]; Stoecker, Horst ^[1]

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1. Frankfurt Institute for Advanced Studies, Johann Wolfgang Goethe-Universitaet, Max-von-Laue-Strasse 1, D-60438 Frankfurt (Germany)
2. China Institute of Atomic Energy, P.O. Box 275 (18), Beijing 102413 (China)
3. Institut fuer Theoretische Physik, Johann Wolfgang Goethe-Universitaet, Max-von-Laue-Strasse 1, D-60438 Frankfurt (Germany)

We have investigated the influence of different forms of symmetry energies on various observables proposed to be sensitive to the symmetry energy at subnormal and supranormal densities for reactions {sup 208}Pb +{sup 208}Pb, {sup 132}Sn +{sup 124}Sn, and {sup 96}Zr +{sup 96}zR at E{sub b}=0.4A GeV within the microscopic transport model--ultrarelativistic quantum molecular dynamics model. The same systems are adopted for testing the probes of the symmetry potential at both subnormal and supranormal densities. It is shown that the differences between the predicted values of investigated quantities by different symmetry potentials have a close correspondence with the different behavior of the density dependence of the interaction part of the different symmetry energies. We also find that the comprehensive study with multiple probes provides a possibility for gaining the density dependence of the symmetry potential in a broad density region, which allows us to extract the information of the isospin-dependent part of the effective interaction.

• OSTI ID: 20698996
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 72; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
GEV RANGE
ISOSPIN
LEAD 208 REACTIONS
LEAD 208 TARGET
MOLECULAR DYNAMICS METHOD
NUCLEAR POTENTIAL
RELATIVISTIC RANGE
SYMMETRY
TIN 124 TARGET
TIN 132
TRANSPORT THEORY
ZIRCONIUM 96 REACTIONS
ZIRCONIUM 96 TARGET