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arXiv · 1412.0727

Parameterization of the statistical rate function for select superallowed transitions

I. S. Towner·J. C. Hardy
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Abstract

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.

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I. S. Towner, J. C. Hardy. 2014-12-01. Parameterization of the statistical rate function for select superallowed transitions. https://doi.org/10.1103/physrevc.91.015501

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