Precision nuclear β-decay half-life measurements

被引：3
|
作者：
Ball G.C. [1 ]
机构：
[1] TRIUMF, Vancouver, BC
来源：
Hyperfine Interactions | 2014年 / 225卷 / 1-3期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Direct; β; counting; Half-life; Superallowed fermi β decay;
D O I：
10.1007/s10751-013-0890-x
中图分类号：
学科分类号：
摘要：
Precise measurements of the intensities of superallowed Fermi β decays between 0+ analog states provide a demanding test of the electroweak standard model. At ISAC, nuclear β-decay lifetimes are measured with high-precision (<0.05 %) by direct β counting using a 4π continuous flow gas proportional counter coupling to a fast tape transport system. This facility has provided the most precise half-life measurements for several superallowed β emitters including: 26Alm, 38Km, 62Ga and 74Rb. © 2013 Springer Science+Business Media Dordrecht.
引用
收藏
页码：133 / 136
页数：3
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