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arXiv · 1103.5877

Effect of the momentum dependence of nuclear symmetry potential on pion-/pion+ ratio in heavy-ion collisions

Yuan Gao·Lei Zhang·Hong-Fei Zhang·Xi-Meng Chen·Gao-Chan Yong
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Abstract

In the framework of the isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model, effect of the momentum dependence of nuclear symmetry potential on pion-/pion+ ratio in the neutron-rich reaction 132Sn+124Sn at a beam energy of 400 MeV/nucleon is studied. We find that the momentum dependence of nuclear symmetry potential affects the compressed density of colliding nuclei, numbers of produced pion- and pion+, as well as the value of pion-/pion+ ratio. The momentum dependent nuclear symmetry potential increases the compressed density of colliding nuclei, numbers of produced resonances delta(1232), N*(1440), pion- and pion+, as well as the value of pion-/pion+ ratio.

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Yuan Gao, Lei Zhang, Hong-Fei Zhang, Xi-Meng Chen, Gao-Chan Yong. 2011-03-30. Effect of the momentum dependence of nuclear symmetry potential on pion-/pion+ ratio in heavy-ion collisions. https://doi.org/10.1103/physrevc.83.047602

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