Dynamical treatment of Fermi motion in a microscopic description of heavy ion collisions

  • A quasiclassical Pauli potential is used to simulate the Fermi motion of nucleons in a molecular dynamical simulation of heavy ion collisions. The thermostatic properties of a Fermi gas with and without interactions are presented. The inclusion of this Pauli potential into the quantum molecular dynamics (QMD) approach yields a model with well defined fermionic ground states, which is therefore also able to give the excitation energies of the emitted fragments. The deexcitation mechanisms (particle evaporation and multifragmentation) of the new model are investigated. The dynamics of the QMD with Pauli potential is tested by a wide range of comparisons of calculated and experimental double-differential cross sections for inclusive p-induced reactions at incident energies of 80 to 160 MeV. Results at 256 and 800 MeV incident proton energy are presented as predictions for completed experiments which are as yet unpublished.

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Author:Georg Peilert, Jens Konopka, Horst StöckerORCiDGND, Walter GreinerGND, M. Blann, M. G. Mustafa
Parent Title (English):Physical review C
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:17
First Page:1457
Last Page:1473
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht