RHO(0)-OMEGA MIXING IN CHIRAL PERTURBATION-THEORY

被引：46

作者：

URECH, R

机构：

[1] Institut für Theoretische Teilchenphysik, Universität Karlsruhe

来源：

PHYSICS LETTERS B | 1995年 / 355卷 / 1-2期

关键词：

RHO(0)-OMEGA MIXING; CHIRAL PERTURBATION THEORY; QUARK MASS RATIO;

D O I：

10.1016/0370-2693(95)00749-B

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In order to calculate the rho(0) - omega mixing we extend the chiral couplings of the low-lying vector mesons in chiral perturbation theory to a lagrangian that contains two vector fields. Pie determine the two-point function and recover an earlier result for the mixing amplitude. We give an update of the quark mass ratio R = (m(s) - ($) over cap m)/(m(d) - m(u)).

引用

页码：308 / 312

页数：5

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