The role of quantum effects and nonequilibrium transport coefficients for relativistic heavy ion collisions

  • Stopping power and thermalization in relativistic heavy ion collisions is investigated employing the quantum molecular dynamics approach. For heavy systems stopping of the incoming nuclei is predicted, independent of the energy. The influence of the quantum effects and their increasing importance at low energies, is demonstrated by inspection of the mean free path of the nucleons and the n-n collision number. Classical models, which neglect these effects, overestimate the stopping and the thermalization as well as the collective flow and squeeze out. The sensitivity of the transverse and longitudinal momentum transfer to the in-medium cross section and to the pressure is investigated.

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Author:Maria Berenguer, Christoph HartnackORCiD, Georg Peilert, Horst StöckerORCiDGND, Walter GreinerGND, Jörg AichelinORCiDGND, Albrecht Rosenhauer
Parent Title (German):Journal of Physics G: Nuclear and particle physics
Document Type:Article
Date of Publication (online):2006/05/29
Year of first Publication:1992
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/05/29
Page Number:23
First Page:655
Last Page:649
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht