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

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

2011-03-30

arxiv.org/abs/1103.5877v1

Phys.Rev.C83:047602,2011

Physics

Nuclear Physics

Nuclear Theory

4 pages, 3 figures, accepted by PRC

Scientific paper

10.1103/PhysRevC.83.047602

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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