摘要
从W-S模型的完全拉氏量出发,按区正则系综的温度场论计算了该模型在有限温度和密度下的有效势,讨论了高温高密下弱电系统的两个基本热效应。发现热效应不仅可以抵消Higgs机制的效应使对称性得到恢复,而且还会使规范粒子保留有来自极化效应导致的质量。
The effective potential of the W-S model is calculated at finite temperature and density
from the entire Lagrangian according to the grand canonical ensemble temperature field
theory. The two elementary thermal effects in the weak and electromagnetic system are stu-
died. The result indicates that the thermal effects not only counteract the Higgs mecha-
nism effect and make the symmetry restore, but also make the gauge particles leave nonvani-
shing masses due to the plasmon effects.
出处
《高能物理与核物理》
CSCD
北大核心
1991年第5期427-436,共10页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金资助课题
