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Dependence of flow observables in heavy-ion collisions on the symmetry energy and the in-medium nucleon–nucleon interaction

✍ Scribed by M.D. Cozma; M. Petrovici

Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
675 KB
Volume
62
Category
Article
ISSN
0146-6410

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✦ Synopsis

We employ a QMD transport model to study the influence of the isospin dependent part of the nuclear matter equation of state on the dynamics of heavy-ion collisions at intermediate energies. Parametrization of the in-medium dependence of the nucleon-nucleon elastic cross-sections, as predicted by microscopical models, are used. The sensitivity of flow observables to various parametrizations of the isospin dependent part of the equation of state (symmetry energy) is studied. The experimentally observed splitting of the elliptic flow values in Ru + Zr and Zr + Ru at incident energies of 400 MeV is shown to be due to, to an equal extent, density dependence of the microscopic nucleon-nucleon cross-section and symmetry energy.

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