GA IN THE CONSTITUENT QUARK-MODEL

被引：31

作者：

PERIS, S ^{[1
]}

机构：

[1] UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90024

来源：

PHYSICS LETTERS B | 1991年 / 268卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(91)91599-Q

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The axial-vector coupling of a constituent quark, g(A), is computed to the one-loop level using the linear sigma model as a regulator of the divergences of the nonlinear sigma model. Starting with a tree-level value g(A) = 1, these one-loop corrections are found to have the right sign and size to explain why "g(A) (exp.)" congruent-to 0.75. Some implications for models of dynamical symmetry breakdown are also very briefly touched upon.

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收藏

页码：415 / 418

页数：4

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