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. 
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.
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Metadaten
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):2006/05/10
Year of first Publication:2006
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2006/05/10
Tag:HICs
Note:
PACS numbers: 25.70.-z, 24.10.Lx, 25.75.-q
Source:http://arxiv.org/abs/nucl-th/0601047, J.Phys. G32 (2006) 407-416
HeBIS PPN:190700734
Institutes:Physik
Frankfurt Institute for Advanced Studies (FIAS)
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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