COMPONENTS OF A CHIRAL COEFFICIENT

被引：20

作者：

DONOGHUE, JF ^{[1
]}

HOLSTEIN, BR ^{[1
]}

机构：

[1] UNIV WASHINGTON, INST NUCL THEORY, SEATTLE, WA 98195 USA

来源：

PHYSICAL REVIEW D | 1992年 / 46卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.46.4076

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

One of the coefficients that parametrizes the chiral Lagrangian of QCD is expressible in terms of a sum rule for which the integrand is known from experiment. We confront two model calculations of this coefficient with the behavior of the data. The model related to vector dominance reproduces the sum-rule behavior very well, whereas a one-loop chiral quark model calculation fails badly. The sum rule allows one to identify those ingredients which are needed to make the quark method more realistic.

引用

页码：4076 / 4081

页数：6

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