High-Precision Half-life Measurements for the Superallowed $\beta$+ Emitter $^{14}$O - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Conference Poster Year : 2013

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

C.E. Svensson
  • Function : Author
C. Andreoiu
  • Function : Author
G.C. Ball
  • Function : Author
Bertram Blank
D. S. Cross
  • Function : Author
A. Diaz Varela
  • Function : Author
R. Dunlop
  • Function : Author
A.B. Garnsworthy
  • Function : Author
P. Garrett
  • Function : Author
J. Giovinazzo
G. Hackman
  • Function : Author
B. Hadinia
  • Function : Author
D.S. Jamieson
  • Function : Author
S. Ketelhut
  • Function : Author
J.R. Leslie
  • Function : Author
E.R. Tardiff
  • Function : Author
C. Unsworth
  • Function : Author

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.

Dates and versions

in2p3-00939050 , version 1 (30-01-2014)

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Cite

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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