MESONS IN THE LOW-ENERGY LIMIT OF QCDH

被引：12

作者：

KALINOVSKY, YL ^{[1
]}

KASCHLUHN, L ^{[1
]}

PERVUSHIN, VN ^{[1
]}

机构：

[1] DUBNA JOINT NUCL RES INST,DUBNA,USSR

来源：

FORTSCHRITTE DER PHYSIK-PROGRESS OF PHYSICS | 1990年 / 38卷 / 05期

关键词：

D O I：

10.1002/prop.2190380503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quark‐antiquark bound states are described within the Bethe‐Salpeter approach for a class of quark models with instantaneous 4‐quark interaction. Thereby decompositions of the Bethe‐Salpeter vertex and wave functions according to their Lorentz structures and the particle content are used. Normalization conditions for the bound state functions are given. As an application of the general scheme, we determine the mass spectrum of low‐lying mesons without expanding in energy. This calculation is performed for a special Nambu‐Jona‐Lasinio model which follows from the so‐called QCD for hadrons, QCDh, by a localization of the potential. Furthermore the pion and kaon decay constants are determined. We receive good agreement with the experimental data. Copyright © 1990 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：353 / 369

页数：17

共 20 条

[1] BOSONIZATION IN 4 DIMENSIONS DUE TO ANOMALIES AND AN EFFECTIVE LAGRANGIAN FOR PSEUDOSCALAR MESONS [J].