High-Precision Measurement of the 19Ne Half-Life and Implications for Right-Handed Weak Currents

Abstract

We report a precise determination of the 19Ne half-life to be $T_{1/2}=17.262\pm 0.007$ s. This result disagrees with the most recent precision measurements and is important for placing bounds on predicted right-handed interactions that are absent in the current Standard Model. We are able to identify and disentangle two competing systematic effects that influence the accuracy of such measurements. Our findings prompt a reassessment of results from previous high-precision lifetime measurements that used similar equipment and methods.

arXiv comment5 pages and 5 figures. Paper accepted for publication in Phys. Rev. Lett

References in corpus (2)

• Determination of |Vud| from nuclear mirror transitions
• Ft values of the T = 1/2 mirror beta transitions

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• Measurement of the half-life of the T=$\frac{1}{2}$ mirror decay of ${}^{19}$Ne and its implication on physics beyond the standard model
• Precision half-life measurement of the \boldmath${\beta }^{+}$ decay of \tsups{37}K
• Search for Superscreening effect in Superconductor
• A decay microscope for trapped neon isotopes
• Precise branching ratio measurements in ${}^{19}$Ne beta decay and fundamental tests of the weak interaction
• High Precision Measurement of the ${}^{19}$Ne Half-life using real-time digital acquisition
• Precision calculation of isospin-symmetry-breaking corrections to T=1/2 mirror decays using multi-reference charge-dependent density functional theory