NEW MEASUREMENTS OF THE ELECTRON NEUTRON SPIN ASYMMETRY IN NEUTRON BETA-DECAY

被引：52

作者：

EROZOLIMSKII, BG ^{[1
]}

KUZNETSOV, IA ^{[1
]}

STEPANENKO, IV ^{[1
]}

KUIDA, IA ^{[1
]}

MOSTOVOI, YA ^{[1
]}

机构：

[1] KURCHATOV ATOM ENERGY INST,MOSCOW 123182,USSR

来源：

PHYSICS LETTERS B | 1991年 / 263卷 / 01期

关键词：

D O I：

10.1016/0370-2693(91)91703-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The A-coefficient, which characterizes the angular correlation between the electron escape and the decaying neutron spin directions, is measured in an intense polarized neutron beam from the new vertical channel of the LNPI reactor. The result is A = -0.1131 +/- 0.0014 (A0 = - 0.1116 +/- 0.0014), implying lambda = g(A)/g(V) = - 1.2544 +/- 0.0036 for the ratio of the weak coupling constants.

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页码：33 / 38

页数：6

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