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Poster communications

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

Abstract : 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.
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Poster communications
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http://hal.in2p3.fr/in2p3-00939050
Contributor : Nathalie Martin <>
Submitted on : Thursday, January 30, 2014 - 8:57:53 AM
Last modification on : Friday, November 13, 2020 - 7:54:02 AM

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A.T. Laffoley, C.E. Svensson, C. Andreoiu, R.A.E. Austin, G.C. Ball, et al.. High-Precision Half-life Measurements for the Superallowed $\beta$+ Emitter $^{14}$O. 25th International Nuclear Physics Conference (INPC 2013), Jun 2013, Firenze, Italy. 66, pp.05012, 2013, ⟨10.1051/epjconf/20146605012⟩. ⟨in2p3-00939050⟩

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