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, and R. G. T. Zegers
Phys. Rev. C 79, 015803 – Published 16 January 2009

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.

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  • Received 3 October 2008

DOI:https://doi.org/10.1103/PhysRevC.79.015803

©2009 American Physical Society

Authors & Affiliations

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

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Vol. 79, Iss. 1 — January 2009

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