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Article
Report number arXiv:2204.06668
Title High-precision half-life determination of 14O via direct β counting
Related titleHigh-precision half-life determination of 14O via direct β counting
Author(s) Sharma, S. (Regina U.) ; Grinyer, G.F. (Regina U.) ; Ball, G.C. (TRIUMF) ; Leslie, J.R. (Queen's U., Kingston) ; Svensson, C.E. (Guelph U.) ; Ali, F.A. (Guelph U. ; Sulaimaniya U.) ; Andreoiu, C. (Simon Fraser U., Dept. Chem.) ; Bernier, N. (TRIUMF ; British Columbia U. ; Western Cape U. ; Zululand U.) ; Bhattacharjee, S.S. (TRIUMF) ; Bildstein, V. (Guelph U.) Mostra tots els 33 autors
Publication 2022-05-03
Imprint 2022-04-13
Number of pages 8
Note 8 pages, 6 figures, accepted for publication in the European Physical Journal A
In: Eur. Phys. J. A 58 (2022) 83
DOI 10.1140/epja/s10050-022-00730-w
Subject category nucl-ex ; Nuclear Physics - Experiment
Accelerator/Facility, Experiment TRIUMF ISAC
Abstract The half-life of the superallowed Fermi β+ emitter 14O was determined to high precision via a direct β counting experiment performed at the Isotope Separator and Accelerator (ISAC) facility at TRIUMF. The result, T1/2(14O) = 70619.2(76) ms, is consistent with, but is more precise than, the world average obtained from 11 previous measurements. Combining the 14O half-life deduced in the present work with the previous most precise measurements of this quantity leads to a reduction in the overall uncertainty, by nearly a factor of 2. The new world average is T1/2(14O) = 70619.6(63) ms with a reduced χ2 value of 0.87 obtained from 8 degrees of freedom.
Copyright/License publication: © 2022-2024 The Author(s) (License: CC-BY-4.0)
preprint: (License: CC-BY-4.0)



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 Registre creat el 2022-06-02, darrera modificació el 2024-05-08


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