B-K AND EXPLICIT CHIRAL-SYMMETRY BREAKING

被引：21

作者：

BIJNENS, J ^{[1
]}

PRADES, J ^{[1
]}

机构：

[1] NIELS BOHR INST,DK-2100 COPENHAGEN O,DENMARK

来源：

PHYSICS LETTERS B | 1995年 / 342卷 / 1-4期

关键词：

D O I：

10.1016/0370-2693(94)01350-L

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The B-K parameter is discussed in the general context of calculating beyond the factorization approximation for hadronic matrix elements. A variant of the 1/N-c method of Bardeen et al, is used. We present calculations within a low energy approach and a calculation within the Nambu-Jona-Lasinio model. Matching with the QCD behaviour and dependence on non-zero current quark masses is studied.

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页码：331 / 338

页数：8

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