Sharma, S, Grinyer, GF, Ball, GC, Leslie, JR, Svensson, CE, Ali, FA, Andreoiu, C, Bernier, N, Bhattacharjee, SS, Bildstein, V et al (show 23 more authors)
(2022)
High-precision half-life determination of $^{14}$O via direct $β$
counting.
[Preprint]
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Text
2204.06668v1.pdf - Submitted version Download (1MB) | Preview |
Abstract
The half-life of the superallowed Fermi $\beta^+$ emitter $^{14}$O was determined to high precision via a direct $\beta$ counting experiment performed at the Isotope Separator and Accelerator (ISAC) facility at TRIUMF. The result, $T_{1/2}$($^{14}$O) = 70619.2(76) ms, is consistent with, but is more precise than, the world average obtained from 11 previous measurements. Combining the $^{14}$O 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 $T_{1/2}$($^{14}$O) = 70619.6(63) ms with a reduced $\chi^2$ value of 0.87 obtained from 8 degrees of freedom.
| Item Type: | Preprint |
|---|---|
| Additional Information: | 8 pages, 6 figures, accepted for publication in the European Physical Journal A |
| Uncontrolled Keywords: | nucl-ex, nucl-ex |
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 22 Jul 2022 16:00 |
| Last Modified: | 18 Jan 2023 21:04 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3153885 |
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