CONSTRAINTS ON CHIRAL PERTURBATION-THEORY PARAMETERS FROM QCD INEQUALITIES

被引：30

作者：

COMELLAS, J

LATORRE, JI

TARON, J

机构：

[1] Departament d'Estructura i Constituents de la Matèria, Facultat de Física, Universitat de Barcelona, 08028 Barcelona

来源：

PHYSICS LETTERS B | 1995年 / 360卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(95)01110-C

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We explore some of the constraints imposed by positivity of the QCD measure (Weingarten's inequalities) on the parameters defining chiral perturbation theory, We find, in particular, that 2m(q)(mu) less than or equal to B-0(mu)Z(mu). The use of further properties of the exact fermion propagator yields information on some higher order parameters.

引用

页码：109 / 116

页数：8

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