Isospin-Dependence of $π^-/π^+$ Ratio and Density-Dependence of Nuclear Symmetry Energy

Details Isospin-Dependence of $π^-/π^+$ Ratio and Density-Dependence of Nuclear Symmetry Energy Isospin-Dependence of $π^-/π^+$ Ratio and Density-Dependence of Nuclear Symmetry Energy

2002-11-12

arxiv.org/abs/nucl-th/0211037v1

Phys.Rev. C67 (2003) 017601

Physics

Nuclear Physics

Nuclear Theory

8 pages + 2 figures. Phys. Rev. C in press

Scientific paper

10.1103/PhysRevC.67.017601

The $\pi^-/\pi^+$ ratio is examined as a function of isospin asymmetry and beam energy for central collisions induced by neutron-rich nuclei within an isospin-dependent hadronic transport model. The $\pi^-/\pi^+$ ratio is found to increase with the isospin asymmetry, but decrease with the beam energy of the reaction. For neutron-rich systems, such as, $^{124}Sn+^{124}Sn$ and $^{132}Sn+^{124}Sn$, the sensitivity of $\pi^-/\pi^+$ ratio to nuclear symmetry energy is almost beam energy independent.

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