Measurement of the Half-Life of the T=1/2 Mirror Decay of Ne-19 and its Implication on Physics Beyond the Standard Model

P. Dendooven, K. Jungmann, A. Mol, C. J. G. Onderwater, D. J. van der Hoek, L. Willmann, H. W. Wilschut, A. R. Young

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The 1+/2 -> 1+/2 superallowed mixed mirror decay of Ne-19 to F-19 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 T-1/2 = 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
JournalPhysical Review Letters
Issue number21
Publication statusPublished - 27 May 2014
Externally publishedYes



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