γ-ray constraints on the properties of unbound 32Cl levels

C. Wrede, A. García, D. Melconian, S. Triambak, and B. A. Brown
Phys. Rev. C 86, 047305 – Published 5 October 2012

Abstract

Systematic differences between measurements of excitation energies and branching ratios of unbound 32Cl levels near the proton threshold have recently emerged. We investigate these 32Cl properties using independent information by analyzing existing 32Ar(βγ)32Cl data and using published values from measurements of the 32S(3He,tγ)32Cl reaction. Significant evidence emerges in support of particular values. The results increase the thermonuclear rate of the 31S(p,γ)32Cl reaction by up to a factor of 2 over the temperature range of 0.4 to 2 GK that is reached during type I x-ray bursts on hydrogen-accreting neutron stars.

  • Figure
  • Received 15 August 2012

DOI:https://doi.org/10.1103/PhysRevC.86.047305

©2012 American Physical Society

Authors & Affiliations

C. Wrede1, A. García2, D. Melconian3,4, S. Triambak5, and B. A. Brown1

  • 1Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
  • 2Department of Physics, University of Washington, Seattle, Washington 98195 USA
  • 3Department of Physics, Texas A&M University, College Station, Texas 77843-4242, USA
  • 4Cyclotron Institute, Texas A&M University, College Station, Texas 77843-3636, USA
  • 5Department of Physics and Astrophysics, University of Delhi, Delhi 110 007, India

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Issue

Vol. 86, Iss. 4 — October 2012

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