LAFFOLEY, A.T.; SVENSSON, C.E.; ANDREOIU, C.; AUSTIN, R.A.E.; BALL, G.C.; BLANK, Bertram; BOUZOMITA, H.; S. CROSS, D.; DIAZ VARELA, A.; DUNLOP, R.; FINLAY, P.; GARNSWORTHY, A.B.; GARRETT, P.; GIOVINAZZO, J.; GRINYER, G.F.; HACKMAN, G.; HADINIA, B.; JAMIESON, D.S.; KETELHUT, S.; LEACH, K.G.; LESLIE, J.R.; TARDIFF, E.R.; THOMAS, J.C.; UNSWORTH, C.

doi:10.1051/epjconf/20146605012

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LAFFOLEY, A.T.
Department of Physics [Guelph]

SVENSSON, C.E.

ANDREOIU, C.

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Autre communication scientifique (congrès sans actes - poster - séminaire...)

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2013-06-03, Firenze. 2013, vol. 66, p. 05012

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The half-life of 14O, a superallowed Fermi emitter, has been determined via simultaneous and counting experiments at TRIUMF's Isotope Separator and Accelerator facility. Following the implantation of 14O samples at the center of the 8 spectrometer, a counting measurement was performed by detecting the 2313 keV rays emitted from the first excited state of the daughter 14N using 20 high-purity germanium (HPGe) detectors. A simultaneous counting experiment was performed using a fast plastic scintillator positioned directly behind the implantation site. The results, T1=2( ) = 70:632 0:094 s and T1=2( ) = 70:610 0:030 s, are consistent with one another and, together with eight previous measurements, establish a new average for the 14O half-life of T1=2 = 70:619 0:011 s with a reduced 2 of 0.99.< Réduire

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High-Precision Half-life Measurements for the Superallowed $\beta$+ Emitter $^{14}$O

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