Parametrization of the statistical rate function for select superallowed transitions
Parametrization of the statistical rate function for select superallowed transitions
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选择超级允许跃迁的统计速率函数的参数化
DOI：
10.1103/physrevc.91.015501
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发表时间：
2014
影响因子：
3.1
通讯作者：
J. Hardy
中科院分区：
文献类型：
--
作者：
I. Towner;J. Hardy
我们提出了一个参数化的统计率函数，f，为20个超允许的0+-0+核β T=1模拟状态之间的过渡，和18个超允许的“镜像”模拟T=1/2状态之间的过渡。所有这些跃迁对V_{ud}的测定都是有意义的。虽然大部分的相变Q_{EC}值已经测得，但其精度无疑还有待进一步提高。我们的参数化使用户能够轻松地计算出相应的新f值，达到高精度（+/-0.01%），而无需复杂的计算。
We present a parameterization of the statistical rate function, f, for 20 superallowed 0+-to-0+ nuclear beta transitions between T=1 analog states, and for 18 superallowed "mirror" transitions between analog T=1/2 states. All these transitions are of interest in the determination of V_{ud}. Although most of the transition Q_{EC} values have been measured, their precision will undoubtedly be improved in future. Our parameterization allows a user to easily calculate the corresponding new f value to high precision (+/-0.01%) without complicated computing.