Beta-neutrino angular correlation in the decay of Ne-18

被引：27
|
作者：
Egorov, V
Briancon, C
Brudanin, V
Dionisio, J
Deutsch, J
Gorozhankin, V
Gurov, Y
Prieels, R
Sandukovsky, V
Severijns, N
Simoes, M
Shitov, Y
Vieu, C
Vorobel, V
Vylov, T
Yutlandov, I
Zaparov, S
机构：
[1] CTR SPECTROMETRIE NUCL & SPECTROMETRIE MASSE, F-91405 ORSAY, FRANCE
[2] UNIV CATHOLIQUE LOUVAIN, B-1348 LOUVAIN, BELGIUM
[3] KATHOLIEKE UNIV LEUVEN, B-3001 LOUVAIN, BELGIUM
来源：
NUCLEAR PHYSICS A | 1997年 / 621卷 / 03期
关键词：
radioactivity of Ne-18; measured beta; gamma coinc; E-gamma(theta); deduced Doppler shift; parameter C-S/C-V;
D O I：
10.1016/S0375-9474(97)00178-4
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The presence of a scalar interaction in nuclear beta-decay was studied by measuring the beta-neutrino correlation coefficient alpha in the superallowed pure Fermi beta-transition Ne-18(O+) --> F-18(O+, 1040 keV) (T-1/2 = 1.67 s). The resulting value, i.e. alpha = + 1.06 +/- 0.19 (error quoted at 2 sigma), corresponds to the limit root/C-s/(2) + \C-s'\(2) less than or equal to 0.29\C-v\ (95%) CL for the scalar coupling constant. (C) 1997 Elsevier Science B.V.
引用
收藏
页码：745 / 753
页数：9
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