Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2009-06-04
Phys.Rev.C80:044608,2009
Physics
Nuclear Physics
Nuclear Theory
Discussions added. Version accepted by PRC
Scientific paper
10.1103/PhysRevC.80.044608
Using a transport model coupled with a phase-space coalescence after-burner we study the triton-$^3$He ratio, relative and differential transverse flows in semi-central $^{132}Sn+^{124}Sn$ reactions at a beam energy of 400 MeV/A. The neutron-proton ratio, relative and differential flows are also discussed as a reference. We find that similar to the neutron-proton pairs the triton-$^3$He pairs also carry interesting information about the density dependence of the nuclear symmetry energy. Moreover, the nuclear symmetry energy affects more strongly the t-$^3$He relative and differential flows than the $\pi^-/\pi^+$ ratio in the same reaction. The t-$^3$He relative flow can be used as a particularly powerful probe of the high-density behavior of the nuclear symmetry energy.
Chen Lie-Wen
Li Bao-An
Yong Gao-Chan
Zhang Xun-Chao
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