Latest documents http://publikationen.stub.uni-frankfurt.de/index/index/ Thu, 05 Oct 2006 09:28:02 +0200 Thu, 05 Oct 2006 09:28:02 +0200 http://publikationen.stub.uni-frankfurt.de/frontdoor/index/index/docId/2775 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. Qingfeng Li; Zhuxia Li; Sven Soff; Marcus Bleicher; Horst Stöcker preprint http://publikationen.stub.uni-frankfurt.de/frontdoor/index/index/docId/2775 Wed, 10 May 2006 09:28:02 +0200