Medium modifications of the nucleon-nucleon elastic cross section in neutron-rich intermediate energy HICs
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.
| Author: | Qingfeng Li, Zhuxia Li, Sven Soff, Marcus Bleicher, Horst Stöcker |
|---|---|
| URN: | urn:nbn:de:hebis:30-26357 |
| Document Type: | Preprint |
| Language: | English |
| Date of Publication (online): | 10.05.2006 |
| Year of first Publication: | 2006 |
| Publishing Institution: | Univ.-Bibliothek Frankfurt am Main |
| Tag: | HICs |
| Source: | http://arxiv.org/abs/nucl-th/0601047, J.Phys. G32 (2006) 407-416 |
| HeBIS PPN: | 190700734 |
| Institutes: | Physik |
| Frankfurt Institute for Advanced Studies | |
| Dewey Decimal Classification: | 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Note: | PACS numbers: 25.70.-z, 24.10.Lx, 25.75.-q |
| Licence (German): |  Veröffentlichungsvertrag für Publikationen ohne Print on Demand |
