THE EFFECTIVE-MASS OF SIGMA MESON AT FINITE-TEMPERATURE AND DENSITY

Authors
SU RK ZHONG WH QIAN ZX
Citation
Rk. Su et al., THE EFFECTIVE-MASS OF SIGMA MESON AT FINITE-TEMPERATURE AND DENSITY, Communications in Theoretical Physics, 22(2), 1994, pp. 193-198
Citations number
14
Categorie Soggetti
Physics
Journal title
Communications in Theoretical Physics → ACNP
ISSN journal
02536102
Volume
22
Issue
2
Year of publication
1994
Pages
193 - 198
Database
ISI
SICI code
0253-6102(1994)22:2<193:TEOSMA>2.0.ZU;2-#
Abstract
By means of the finite temperature and finite density real time Green' s function method, the effective mass of sigma meson is calculated by summing the bubble diagrams. It is found that the formula of effective mass given by rho meson can also be used to describe the sigma meson, but the parameter n depends on density. The conjecture of Brown and R ho about the effective mass of meson can well be proved by quantum fie ld theory in high temperature region.