Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2006-01-17
J.Phys. G32 (2006) 407-416
Physics
Nuclear Physics
Nuclear Theory
14 pages, 5 figures
Scientific paper
10.1088/0954-3899/32/4/001
Several observables of unbound nucleons which are to some extent sensitive to the medium modifications of nucleon-nucleon elastic cross sections in neutron-rich intermediate energy heavy ion collisions are investigated. The splitting effect of neutron and proton effective masses on cross sections is discussed. It is found that the transverse flow as a function of rapidity, the $Q_{zz}$ as a function of momentum, and the ratio of halfwidths of the transverse to that of longitudinal rapidity distribution $R_{t/l}$ are very sensitive to the medium modifications of the cross sections. The transverse momentum distribution of correlation functions of two-nucleons does not yield information on the in-medium cross section.
Bleicher Marcus
Li Qingfeng
Li Zhuxia
Soff Sven
Stoecker Horst
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