EFFECTIVE MASSES OF MESONS AND NUCLEON IN HOT MEDIUM FOR THE WALECKA MODEL

Authors
GAO S ZHANG YJ SU RK
Citation
S. Gao et al., EFFECTIVE MASSES OF MESONS AND NUCLEON IN HOT MEDIUM FOR THE WALECKA MODEL, Chinese Physics Letters, 13(2), 1996, pp. 89-92
Citations number
20
Categorie Soggetti
Physics
Journal title
Chinese Physics Letters → ACNP
ISSN journal
0256307X
Volume
13
Issue
2
Year of publication
1996
Pages
89 - 92
Database
ISI
SICI code
0256-307X(1996)13:2<89:EMOMAN>2.0.ZU;2-W
Abstract
Based on the thermo-field dynamics. the temperature and density depend encies of the effective masses of sigma,omega mesons and nucleon in th e walecka model have been calculated. The vacuum fluctuation effect is examined. It is found that the vacuum fluctuation is very important a nd leads to a reduction of omega-meson mass and an enhancement of sigm a-meson mass in hot and dense medium.