Generalized pions in dense QCD

被引：71

作者：

Rho, M ^{[1
]}

Wirzba, A

Zahed, I

机构：

[1] Ctr Etud Saclay, Serv Phys Theor, F-91191 Gif Sur Yvette, France

[2] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

[3] Forschungszentrum Julich, Inst Kernphys Theorie, D-52425 Julich, Germany

来源：

PHYSICS LETTERS B | 2000年 / 473卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(99)01420-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

QCD superconductors in the color-flavor-locked (CFL) phase sustain light Goldstone modes(that will be referred to as generalized pions) that can be described as pairs of particle and/or hole excitations around a gapped Fermi surface. TI weak coupling and to leading logarithm accuracy, their form factor, mass and decay constant can be valuated exactly. These modes are found to satisfy an axial-Ward-identity, constraining the mass of the Goldstone modes in the CFL phase. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：126 / 135

页数：10