TY  - INPR
A1  - Mishra, Amruta
A1  - Balazs, K.
A1  - Zschiesche, Detlef
A1  - Schramm, Stefan
A1  - Stöcker, Horst
A1  - Greiner, Walter
T1  - Effects of Dirac sea polarization on hadronic properties : a Chiral SU(3) approach
N2  - Abstract: The e ect of vacuum fluctuations on the in-medium hadronic properties is investigated using a chiral SU(3) model in the nonlinear realization. The e ect of the baryon Dirac sea is seen to modify hadronic properties and in contrast to a calculation in mean field approximation it is seen to give rise to a significant drop of the vector meson masses in hot and dense matter. This e ect is taken into account through the summation of baryonic tadpole diagrams in the relativistic Hartree approximation (RHA), where the baryon self energy is modified due to interactions with both the non-strange ( ) and the strange ( ) scalar fields.
KW  - heiße und dichte Materie
KW  - Dirac
KW  - meson
KW  - baryon
KW  - hot and dense matter
KW  - Dirac
KW  - meson
KW  - baryon
Y1  - 2003
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3325
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-20832
ER  -