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Phys. Rev. C 79, 015803 (2009) [7 pages]

β-decay half-life of the rp-process waiting-point nuclide 84Mo

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J. B. Stoker1,2, P. F. Mantica1,2, D. Bazin2, A. Becerril2,3,4, J. S. Berryman1,2, H. L. Crawford1,2, A. Estrade2,3,4, C. J. Guess2,3,4, G. W. Hitt2,3,4, G. Lorusso2,3,4, M. Matos2,4, K. Minamisono2, F. Montes2,4, J. Pereira2, G. Perdikakis2, H. Schatz2,3,4, K. Smith2,3,4, and R. G. T. Zegers2,3,4
1Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
2National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
3Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
4Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA

Received 3 October 2008; published 16 January 2009

A half-life of 2.2 ± 0.2 s has been deduced for the ground-state β decay of 84Mo, more than 1σ shorter than the previously adopted value. 84Mo 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 84Mo are also discussed.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.79.015803
DOI:
10.1103/PhysRevC.79.015803
PACS:
23.40.-s, 21.10.Tg, 26.30.Ca, 27.50.+e
 
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