FREE-ENERGY OF A 4-DIMENSIONAL CHIRAL BAG

被引:10
作者
DEFRANCIA, M
FALOMIR, H
SANTANGELO, EM
机构
[1] Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de la Plata, 1900 La Plata, Buenos Aires
来源
PHYSICAL REVIEW D | 1992年 / 45卷 / 06期
关键词
D O I
10.1103/PhysRevD.45.2129
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Through the application of mathematical methods developed in a recent paper, we obtain a closed expression for the chiral correction to the free energy of a bag, due to the presence of the external pionic field in a hedgehog configuration. Low- and high-temperature developments are given and, in particular, the zero-temperature limit is shown to be consistent with previous evaluations of the Casimir energy. The subject of renormalization is also discussed.
引用
收藏
页码:2129 / 2139
页数:11
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