TITLE

# Elliptic flow in intermediate energy heavy ion collisions and n-n interaction and in-medium cross sections

AUTHOR(S)
Li, Zhuxia; Zhang, Yingxun
PUB. DATE
November 2006
SOURCE
AIP Conference Proceedings;2006, Vol. 865 Issue 1, p276
SOURCE TYPE
DOC. TYPE
Article
ABSTRACT
The elliptic flow for Z â‰¤ 2 particles in heavy ion collisions at energies from several tens to several hundreds MeV per nucleon is investigated by means of transport model,i.e. a new version of the Improved Quantum Molecular Dynamics model (ImQMD05), and compared with experiment results. By applying different Skyrme interactions in transport calculations we have studied the influence of nuclear equation of state(EOS) on the elliptic flow. We find a soft equation of state is required for elliptic flow in intermediate energy heavy ion collisions. The density and energy dependence of in-medium nucleon-nucleon cross sections(NNCS) are studied through the elliptic flow and the nuclear stopping in intermediate energy heavy ion collisions. At low energies, the behavior of in-medium NNCS is similar with phenomenological expression as well as the effective mass scaling, but at higher energies in-medium NNCS are enhanced compared with free ones. Â© 2006 American Institute of Physics
ACCESSION #
23115267

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