Astrophysical reaction rate for F17(p,γ)Ne18 from the transfer reaction C13(O17,O18)C12

T. Al-Abdullah, F. Carstoiu, X. Chen, H. L. Clark, C. A. Gagliardi, Y.-W. Lui, A. Mukhamedzhanov, G. Tabacaru, Y. Tokimoto, L. Trache, R. E. Tribble, and Y. Zhai
Phys. Rev. C 89, 025809 – Published 26 February 2014

Abstract

The asymptotic normalization coefficients of the bound states Jπ=(01+,21+,41+,22+) in O18 are extracted from the peripheral neutron transfer reaction C13(O17,O18)C12. They are then converted to their mirror states in Ne18, which are further used to evaluate the astrophysical S factor for the proton capture reaction F17(p,γ)Ne18. The elastic-scattering cross sections have been measured in both incoming and outgoing channels in order to extract the optical potentials needed for distorted-wave-Born-approximation calculations. The S factor is found to be S117(0)=2.17±0.37 keV b. The contribution of the direct capture rate to this reaction is estimated, and its consequences on the production of F18 at stellar energies in ONe novae are discussed.

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  • Received 23 August 2013
  • Revised 27 January 2014

DOI:https://doi.org/10.1103/PhysRevC.89.025809

©2014 American Physical Society

Authors & Affiliations

T. Al-Abdullah1,2,*, F. Carstoiu3, X. Chen1,†, H. L. Clark1, C. A. Gagliardi1, Y.-W. Lui1, A. Mukhamedzhanov1, G. Tabacaru1, Y. Tokimoto1, L. Trache1,3, R. E. Tribble1, and Y. Zhai1,‡

  • 1Cyclotron Institute, Texas A&M University, College Station, Texas 77843-3366, USA
  • 2Physics Department, The Hashemite University, Zarqa 13115, Jordan
  • 3National Institute for Physics and Nuclear Engineering Horia Hulubei, Bucharest, Romania

  • *abdullatq@gmail.com
  • Present address: Department of Chemistry, Washington University at St. Louis, MO, USA.
  • Present address: Cooper Medical School of Rowan University, NJ, USA.

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Vol. 89, Iss. 2 — February 2014

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