High-precision β decay half-life measurements of proton-rich nuclei for testing the CVC hypothesis

被引：0
|
作者：
Kurtukian-Nieto, T. [1 ]
机构：
[1] Univ Bordeaux 1, CENBG, CNRS, IN2P3, F-33175 Gradignan, France
来源：
4TH INTERNATIONAL CONFERENCE ON PROTON EMITTING NUCLEI AND RELATED TOPICS | 2011年 / 1409卷
关键词：
Weak-interaction; lifetimes;
D O I：
10.1063/1.3664172
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 experimental study of super-allowed nuclear beta decays serves as a sensitive probe of the conservation of the weak vector current (CVC) and allows tight limits to be set on the presence of scalar or right-handed currents. Once CVC is verified, it is possible to determine the V-ud element of the CKM quark-mixing matrix. Similarly, the study of nuclear mirror beta decays allows to arrive at the same final quantity V-ud. Whereas dedicated studies of 0(+) -> 0(+) decays are performed for several decades now, the potential of mirror transitions was only rediscovered recently. Therefore, it can be expected that important progress is possible with high-precision studies of different mirror beta decays. In the present piece of work the half-life measurements performed by the CENBG group of the proton-rich nuclei Ti-42, Ca38-39, S30-31 and P-29 are summarised.
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