Measurement of the half-life of the T= 12 mirror decay of Ne 19 and its implication on physics beyond the standard model

L. J. Broussard, H. O. Back, M. S. Boswell, A. S. Crowell, P. Dendooven, G. S. Giri, C. R. Howell, M. F. Kidd, K. Jungmann, W. L. Kruithof, A. Mol, C. J.G. Onderwater, R. W. Pattie, P. D. Shidling, M. Sohani, D. J. Van Der Hoek, A. Rogachevskiy, E. Traykov, O. O. Versolato, L. WillmannH. W. Wilschut, A. R. Young

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19 Scopus citations

Abstract

The 12+→12+ superallowed mixed mirror decay of Ne19 to F19 is excellently suited for high precision studies of the weak interaction. However, there is some disagreement on the value of the half-life. In a new measurement we have determined this quantity to be T1/2=17.2832±0.0051(stat) ±0.0066(syst)s, which differs from the previous world average by 3 standard deviations. The impact of this measurement on limits for physics beyond the standard model such as the presence of tensor currents is discussed.

Original languageEnglish
Article number212301
JournalPhysical Review Letters
Volume112
Issue number21
DOIs
StatePublished - May 27 2014
Externally publishedYes

Funding

FundersFunder number
National Science FoundationNSF-1005233
U.S. Department of EnergyDE-FG02-97ER41042
Directorate for Mathematical and Physical Sciences1005233

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