Within the framework of Brueckner-Hartree-Fock method,the in-medium nucleonnucleon(NN)cross section is calculated.We base our investigation on a separable Paris potential for the NN interaction and a continuous choice...Within the framework of Brueckner-Hartree-Fock method,the in-medium nucleonnucleon(NN)cross section is calculated.We base our investigation on a separable Paris potential for the NN interaction and a continuous choice for the single particle spectrum.It is found that the in-medium cross section is strongly modified by medium effect.In particular,with increasing of nuclear density,the cross sections decrease.This indicates a proper treatment of the density dependence of the in-medium NN cross sections is important.展开更多
基金Supported in part by the National Natural Science Foundation of ChinaShanghai Natural Science Foundationthe Grant LWTZ-1298 of Chinese Academy of Sciences。
文摘Within the framework of Brueckner-Hartree-Fock method,the in-medium nucleonnucleon(NN)cross section is calculated.We base our investigation on a separable Paris potential for the NN interaction and a continuous choice for the single particle spectrum.It is found that the in-medium cross section is strongly modified by medium effect.In particular,with increasing of nuclear density,the cross sections decrease.This indicates a proper treatment of the density dependence of the in-medium NN cross sections is important.
