NEUTRON BETA-DECAY AND THE RIGHT-HANDED CURRENT PROBLEM

被引：24

作者：

GAPONOV, YV

SHULGINA, NB

SPIVAK, PE

机构：

[1] I.V. Kurchatov Institute of Atomic Energy

来源：

PHYSICS LETTERS B | 1991年 / 253卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(91)91719-C

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The renormalization of the axial-vector coupling constant, lambda = gA/gV, extracted from the neutron lifetime (lambda-t) and from the neutron beta decay asymmetry (lambda-c) is considered carefully In the standard model of the electroweak interaction-lambda-t should be equal to lambda-c. According to recent experimental data on neutron beta decay, lambda-t and lambda-c seem to differ from each other. This fact is explained in the framework of the manifestly left-right symmetric model SU(2)L X SU(2)R X U(1). The possibility of the existence of the right-handed current parameters are estimated. The axial-vector constant renormalization (lambda-N) by right-handed currents is evaluated.

引用

页码：283 / 286

页数：4

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