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arXiv · 1006.5421

Vus and neutron beta decay

A. Garcia·G. Sanchez-Colon
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Abstract

We discuss the effect of the recent change of $V_{\rm us}$ by three standard deviations on the standard model predictions for neutron beta decay observables. We also discuss the effect the experimental error bars of $V_{\rm us}$ have on such predictions. Refined precision tests of the standard model will be made by a combined effort to improve measurements in neutron beta decay and in strangeness-changing decays. By itself the former will yield very precise measurements of $V_{\rm ud}$ and make also very precise predictions for $V_{\rm us}$.

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A. Garcia, G. Sanchez-Colon. 2010-06-28. Vus and neutron beta decay. https://doi.org/10.1103/physrevd.77.073005

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