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Half-life and branching ratios for the $\beta$ decay of $^{38}$Ca

Abstract : In an experiment at the LISE3 facility of GANIL, we have studied with high precision the 0+ → 0+ $\beta$ decay of 38Ca. The LISE3 facility allowed to produce close to pure samples of the nuclide of interest.We measured the half-life of this nucleus to be 443.63(35)ms, whereas the super-allowed branching ratio was determined to be 77.14(35)%. Both data are in nice agreement with previous high-precision measurements and thus improve the overall precision of the experimental inputs to determine the corrected Ft value for this nucleus. We also compare the experimental Gamow-Teller strength distribution with theoretical shell-model predictions. Finally, future opportunities at LISE3 are discussed.
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http://hal.in2p3.fr/in2p3-01108941
Contributor : Michel Lion <>
Submitted on : Friday, January 23, 2015 - 5:07:45 PM
Last modification on : Tuesday, November 24, 2020 - 11:30:20 AM

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Bertram Blank, J.C. Thomas, P. Ascher, L. Audirac, A. Bacquias, et al.. Half-life and branching ratios for the $\beta$ decay of $^{38}$Ca. European Physical Journal A, EDP Sciences, 2015, 51, pp.8-18. ⟨10.1140/epja/i2015-15008-1⟩. ⟨in2p3-01108941⟩

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