Elsevier

Nuclear Physics A

Volume 539, Issue 4, 6 April 1992, Pages 713-751
Nuclear Physics A

A relativistic effective interaction for heavy-ion collisions,☆☆

https://doi.org/10.1016/0375-9474(92)90134-6Get rights and content

Abstract

We present a relativistic effective interaction to be used in a transport-theoretical description of heavy-ion collisions. In contrast to the σ-ω-mean-field model, we have formulated our interaction consistent with the momentum dependence of the real part of the experimentally known nucleon-nucleus optical potential. This is achieved by introducing an additional momentum-dependent scalar and vector potential, similar in structure to an exchange term. Essential features of our approach are energy- and momentum-conservation and thermodynamical consistency. We further present parameter sets for different equations of state which all lead to the proper optical potential. The resulting density dependence of the potentials is compared to microscopic Dirac-Brueckner-Hartree-Fock results. Finally we discuss the details of a transport-theoretical realization.

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    Part of the dissertation of Klaus Weber.

    ☆☆

    Supported by BMFT and GSI Darmstadt.

    1

    Present address: University of Illinois, Dept. of Physics, Loomis Lab. of Physics, 1110 West Green Street, Urbana, IL 61801, USA.

    2

    Present address: Institute for Nuclear Theory, Department of Physics, SUNY at Stony Brook, Stony Brook, NY 11794-3800, USA.

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