Strange isosinglet versus octet scalar axial vector current

被引：6

作者：

Kirchbach, M ^{[1
]}

机构：

[1] Johannes Gutenberg Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany

来源：

PHYSICAL REVIEW D | 1998年 / 58卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.58.117901

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The flavor SU(3)(f) group symmetry of QCD is systematically considered as the heavy c quark limit of SU(4)(f). Within that scheme we argue that the U(1)(A) anomaly prevents Gell-Mann's choice for the realization of the su(4)(f) [and thereby the su(3)(f)] algebra for the particular case of the neutral axial currents. Rather, Weyl's choice for the SU(4)(f) generators has to be used which leads to a neutral strong axial vector current having the same structure (up to a constant factor) as the weak one. [S0556-2821(98)10721-X].

引用

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