High-density quark matter under stress

被引：204

作者：

Bedaque, PF

Schäfer, T ^{[1
]}

机构：

[1] SUNY Stony Brook, Dept Phys, Stony Brook, NY 11794 USA

[2] Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA

[3] Brookhaven Natl Lab, Riken BNL Res Ctr, Upton, NY 11973 USA

来源：

NUCLEAR PHYSICS A | 2002年 / 697卷 / 3-4期

关键词：

D O I：

10.1016/S0375-9474(01)01272-6

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We study the effect of SU(3)-flavor breaking on high-density quark matter. We discuss, in particular, a nonzero electron chemical potential and a finite strange-quark mass. We argue that these perturbations trigger pion or kaon condensation. The critical chemical potential behaves as mu(e) similar to rootmm(s)Delta/p(F) and the critical strange-quark mass as m(s) similar to m(1/3)Delta(2/3), where m is the light-quark mass, Delta is the gap, and p(F) is the Fermi momentum. We note that parametrically, both the critical mu(e) and m(s)(2)/(2p(F)) are much smaller than the gap. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：802 / 822

页数：21

共 52 条

[31] Sum rules in the CFL phase of QCD at finite density [J].