CHIRAL PERTURBATION-THEORY FOR VECTOR-MESONS

被引：89

作者：

JENKINS, E ^{[1
]}

MANOHAR, AV ^{[1
]}

机构：

[1] CALTECH, PASADENA, CA 91125 USA

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 12期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.75.2272

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We derive a heavy vector-meson chiral Lagrangian in which the vector mesons are treated as heavy static matter fields. The unknown couplings of the chiral Lagrangian are further related using the 1/N-c expansion. Chiral perturbation theory is applied to the vector-meson mass matrix. At one loop there are large corrections to the individual vector-meson masses, but the singlet-octet mixing angle remains almost unchanged. The parity-violating s-wave phi --> rho pi weak decay amplitude is derived in the combined chiral and large N-c limits. Rare phi decays provide a sensitive test of nonleptonic neutral current structure.

引用

页码：2272 / 2275

页数：4

共 17 条

[1] THE K-]PI-PI DECAYS IN THE LARGE-N LIMIT - QUARK EVOLUTION [J].