تقرير
Measurement of the Branching Ratio for the Beta Decay of $^{14}$O
| العنوان: | Measurement of the Branching Ratio for the Beta Decay of $^{14}$O |
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| المؤلفون: | Voytas, P. A., George, E. A., Severin, G. W., Zhan, L., Knutson, L. D. |
| المصدر: | Phys. Rev. C 92, 065502 (2015) |
| سنة النشر: | 2015 |
| المجموعة: | Nuclear Experiment |
| مصطلحات موضوعية: | Nuclear Experiment |
| الوصف: | We present a new measurement of the branching ratio for the decay of $^{14}$O to the ground state of $^{14}$N. The experimental result, $\lambda _0/\lambda _{\rm total} = (4.934 \pm 0.040\kern 1pt{\rm (stat.)} \pm 0.061\kern 1pt{\rm (syst.)}) \times 10^{-3}$, is significantly smaller than previous determinations of this quantity. The new measurement allows an improved determination of the partial halflife for the superallowed $0^+ \rightarrow 0^+$ Fermi decay to the $^{14}$N first excited state, which impacts the determination of the $V_{ud}$ element of the CKM matrix. With the new measurement in place, the corrected $^{14}$O ${\cal F} t $ value is in good agreement with the average ${\cal F} t $ for other superallowed $0^+ \rightarrow 0^+$ Fermi decays. Comment: 8 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevC.92.065502 |
| URL الوصول: | http://arxiv.org/abs/1512.00430 |
| رقم الأكسشن: | edsarx.1512.00430 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevC.92.065502 |
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