Note on color neutrality in Nambu-Jona-Lasinio-type models

被引：55

作者：

Buballa, M ^{[1
]}

Shovkovy, IA

机构：

[1] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

[2] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany

来源：

PHYSICAL REVIEW D | 2005年 / 72卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.72.097501

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

By referring to the underlying physics behind the color charge neutrality condition in quark matter, we discuss how this condition should be properly imposed in Nambu-Jona-Lasinio (NJL)-type models in a phenomenologically meaningful way. In particular, we show that the standard assumption regarding the use of two color chemical potentials, chosen in a very special way, is not justified in general. When used uncritically, such an approach leads to wrong or unphysical conclusions.

引用

页数：4

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