Generalized Ward identity and gauge invariance of the color-superconducting gap

被引：7

作者：

Hou, DF ^{[1
]}

Wang, Q

Rischke, DH

机构：

[1] Goethe Univ Frankfurt, Inst Theoret Phys, D-60054 Frankfurt, Germany

[2] Huazhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China

[3] Shandong Univ, Dept Phys, Jinan 250100, Shandong, Peoples R China

来源：

PHYSICAL REVIEW D | 2004年 / 69卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.69.071501

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We derive a generalized Ward identity for color-superconducting quark matter via the functional integral approach. The identity implies the gauge independence of the color-superconducting gap parameter on the quasiparticle mass shell to subleading order in the covariant gauge.

引用

页数：5

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