NUCLEAR AND HEAVY ION PHYSICS

An Abelian Ward identity and the vertex corrections to the color superconducting gap

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2009 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd
, , Citation Xu Hao-Jie and Wang Qun 2009 Chinese Phys. C 33 753 DOI 10.1088/1674-1137/33/9/008

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Author e-mails

xuhjero@mail.ustc.edu.cn

qunwang@ustc.edu.cn

Author affiliations

1 Interdisciplinary Center for Theoretical Study and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China

Dates

  1. Received 3 December 2008
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1674-1137/33/9/753

Abstract

We derive an Abelian-like Ward identity in the color superconducting phase and calculate vertex corrections to the color superconducting gap. Making use of the Ward identity, we show that subleading order contributions to the gap from vertices are absent for gapped excitations.

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