In-medium vector meson masses in a chiral SU(3) model

A significant drop of the vector meson masses in nuclear matter is observed in a chiral SU(3) model due to the e ects of the baryon Dirac sea. This is taken into account through the summation of baryonic tadpole diagrams
A significant drop of the vector meson masses in nuclear matter is observed in a chiral SU(3) model due to the e ects of the baryon Dirac sea. This is taken into account through the summation of baryonic tadpole diagrams in the relativistic Hartree approximation. The appreciable decrease of the in-medium vector meson masses is due to the vacuum polarisation e ects from the nucleon sector and is not observed in the mean field approximation.
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Metadaten
Author:Detlef Zschiesche, Amruta Mishra, Stefan Schramm, Horst Stöcker, Walter Greiner
URN:urn:nbn:de:hebis:30-21044
Document Type:Preprint
Language:English
Date of Publication (online):2005/11/14
Year of first Publication:2003
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2005/11/14
Tag:Dirac ; Hartree; baryon ; nuclear matter ; relativistic
Source:Phys.Rev.C70:045202,2004. [nucl-th/0302073]
HeBIS PPN:188873430
Institutes:Physik
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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