β-Decay half-life of the rp-process waiting-point nuclide Mo84

J. B. Stoker, P. F. Mantica, D. Bazin, A. Becerril, J. S. Berryman, H. L. Crawford, A. Estrade, C. J. Guess, G. W. Hitt, G. Lorusso, M. Matos, K. Minamisono, F. Montes, J. Pereira, G. Perdikakis, H. Schatz, K. Smith, R. G.T. Zegers

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Abstract

A half-life of 2.2 ± 0.2 s has been deduced for the ground-state β decay of Mo84, more than 1σ shorter than the previously adopted value. Mo84 is an even-even N=Z nucleus lying on the proton dripline, created during explosive hydrogen burning in type I x-ray bursts in the rapid proton capture (rp) process. The effect of the measured half-life on rp-process reaction flow is explored. Implications on theoretical treatments of nuclear deformation in Mo84 are also discussed.

Original languageEnglish
Article number015803
JournalPhysical Review C - Nuclear Physics
Volume79
Issue number1
DOIs
StatePublished - Jan 16 2009

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