Chiral logs in the presence of staggered flavor symmetry breaking

被引：83

作者：

Bernard, C ^{[1
]}

机构：

[1] Washington Univ, St Louis, MO 63130 USA

[2] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA

来源：

PHYSICAL REVIEW D | 2002年 / 65卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.65.054031

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Chiral logarithms in in m(pi)(2) are calculated at one loop, taking into account the leading contributions to flavor symmetry breaking due to staggered fermions. I treat both the full QCD case (2 + 1 light dynamical flavors) and the quenched case; finite volume corrections are included. My starting point is the effective chiral Lagrangian introduced by Lee and Sharpe, It is necessary to understand the one-loop diagrams in the "quark flow" picture in order to adjust the calculation to correspond to the desired number of dynamical quarks.

引用

页数：10

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