Measurement of the half-life of the T= 12 mirror decay of Ne 19 and its implication on physics beyond the standard model
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. © 2014 American Physical Society.
Broussard, LJ; Back, HO; Boswell, MS; Crowell, AS; Dendooven, P; Giri, GS; Howell, CR; Kidd, MF; Jungmann, K; Kruithof, WL; Mol, A; Onderwater, CJG; Pattie, RW; Shidling, PD; Sohani, M; Van Der Hoek, DJ; Rogachevskiy, A; Traykov, E; Versolato, OO; Willmann, L; Wilschut, HW; Young, AR
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