Measurement of the Gamow-Teller Branching Ratio in the $\beta$-Decay of ${21}$Na
Langue
en
Communication dans un congrès
Ce document a été publié dans
AIP Conference Proceedings, AIP Conference Proceedings, 2008-08-25, Cologne. 2009, vol. 1090, p. 362-366
American Institute of Physics
Résumé en anglais
The beta-decay branching ratio of the GT transition in 21Na to the first excited state in 21Ne has been measured. The value obtained of 4.93(20)% is in agreement with the most recent measurement and with the value adopted ...Lire la suite >
The beta-decay branching ratio of the GT transition in 21Na to the first excited state in 21Ne has been measured. The value obtained of 4.93(20)% is in agreement with the most recent measurement and with the value adopted so far. This confirms that the branching ratio is not the source of discrepancy in a previous measurement of beta−v correlation coefficient which exhibited a 3sigma difference with respect to the Standard Model prediction.< Réduire
Mots clés en anglais
beta-decay
radioactive decay periods
nucleosynthesis
Origine
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