Cl36(n,p)36S cross section from 25 meV to 800 keV and the nucleosynthesis of the rare isotope S36

P. E. Koehler, S. M. Graff, H. A. O’Brien, Yu. M. Gledenov, and Yu. P. Popov
Phys. Rev. C 47, 2107 – Published 1 May 1993
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Abstract

We have measured the Cl36(n,p)36S cross section from thermal energy to approximately 800 keV. Parameters for eight resonances between 900 eV and 70 keV were determined in a multilevel fit to our data which also included information from published S36(p)37Cl measurements. The Cl36(n,p)36S reaction can play a critical role in the production of the rare isotope S36 in explosive nucleosynthesis and s-process calculations. The astrophysical rate for this reaction was calculated from our measured cross sections and was found to be significantly smaller than the theoretical rate used in previous nucleosynthesis calculations. We discuss the impact of this result on the nucleosynthesis of S36.

  • Received 28 December 1992

DOI:https://doi.org/10.1103/PhysRevC.47.2107

©1993 American Physical Society

Authors & Affiliations

P. E. Koehler, S. M. Graff, and H. A. O’Brien

  • Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545

Yu. M. Gledenov and Yu. P. Popov

  • Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna, Russia

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Vol. 47, Iss. 5 — May 1993

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