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
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
收藏
页码:126 / 135
页数:10
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