High-precision half-life measurement of the beta(+) decay of Na-21
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2018 American Physical Society. The + decay of Na21 to Ne21 is one of the four cases currently being used to determine the value of Vud from nuclear mirror (T=1/2) transitions. To date, published values for the half-life of Na21 have not been consistent with one another. We report here a new measurement of the half-life: 22.46150.0039(stat)0.00150.0001(syst)s. This result increases the world average of the Na21 half-life by 0.0048 s and reduces the uncertainty by a factor of 1.5.
author list (cited authors)
Shidling, P. D., Behling, R. S., Fenker, B., Hardy, J. C., Iacob, V. E., Mehlman, M., ... Melconian, D.
complete list of authors
Shidling, PD||Behling, RS||Fenker, B||Hardy, JC||Iacob, VE||Mehlman, M||Park, HI||Roeder, BT||Melconian, D