Freiburg 1999 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 31: Postersitzung / Theorie

HK 31.4: Poster

Mittwoch, 24. März 1999, 10:15–12:00, Foyer

The Relativistic Structure of the Effective Interaction in Nuclear Matter — •E. Schiller and H. Müther — Institut für Theoretische Physik, Universität Tübingen, Auf der Morgenstelle 14, D-72076 Tübingen

A projection technique is used in Dirac Brueckner Hartree Fock calculations to analyse the relativistic nucleon-nucleon interaction, the G-matrix. To avoid the ambiguity between pseudoscalar and pseudovector coupling the one-pion exchange is treated separately. This allows to describe the G-matrix in terms of an effective meson exchange model. The density dependence of the corresponding isoscalar and isovector coupling constants are discussed. The structure of the nucleon self-energy is investigated.

[*] Supported by the DFG-Graduiertenkolleg Mu 705/3 and the DFG-Sonderforschungsbereich 382.