MEASUREMENT OF AXIAL-VECTOR TO VECTOR COUPLING CONSTANT [G1/F1] IN SIGMA--]NE-VBAR DECAY

被引:12
作者
EISELE, F
ENGELMANN, R
FILTHUTH, H
FOHLISCH, W
HEPP, V
LEITNER, E
PRESSER, W
SCHNEIDER, H
STEVENSON, ML
ZECH, G
机构
[1] CERN, Geneva
来源
ZEITSCHRIFT FUR PHYSIK | 1969年 / 223卷 / 05期
关键词
D O I
10.1007/BF01391967
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The ratio of the axial-vector to vector coupling constant, |g1/f1|, in the Σ-→ne- {Mathematical expression} decay was determined from the electron-neutrino angular distribution. In a sample of 454 Σ-→ne- {Mathematical expression} decays a search was made for subsequent neutron proton scattering in order to detect the decay neutrons. The Σ hyperons were produced by stopping K--mesons in the 81 cm Saclay hydrogen bubble chamber. For the kinematical analysis 33 Σ-→ne-ν events with associated np→np interactions were accepted. The value |g1/f1|=0.37-0.19+0.26 was obtained. © 1969 Springer-Verlag.
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收藏
页码:487 / +
页数:1
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