Experimental Constraints to the <sup>57</sup>Ni(p,γ)<sup>58</sup>Cu Reaction Rate

ORAL

Abstract

Constraining the 57Ni(p,γ)58Cu reaction rate is crucial to understanding nucleosynthesis in core-collapse supernovae (CCSNe), as this reaction impacts the production of observable isotopes 44Ti and 59Ni. During the νp-process, the 57Ni(p,γ)58Cu reaction has also been shown to impact the production of 57Fe. Currently, no experimental rates exist for this reaction. To experimentally constrain this rate, the structure of 58Cu was probed via the 58Ni(3He,t)58Cu reaction using both GODDESS (GRETINA ORRUBA Dual Detectors for Experimental Structure Studies) at Argonne National Laboratory’s ATLAS facility and the Enge split-pole spectrograph at the University of Notre Dame’s Nuclear Science Laboratory. These complementary measurements focused on identifying levels in 58Cu that could lead to significant resonances in the 57Ni(p,γ)58Cu reaction and precisely determining their energies. Experimental procedures and analysis will be presented, along with the impact of the constrained reaction rate on CCSNe nucleosynthesis.

*This work is supported by the University of Notre Dame, U.S. Department of Energy (DOE), National Science Foundation, National Nuclear SecurityAdministration, and DOE Office of Science Graduate Student Research program. This work used the resources of Argonne National Laboratory's ATLAS facility and the Center for Accelerator Target Science.

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Publication: "58Ni( 3He,t)58Cu*(𝜸) measurements with GODDESS to constrain the astrophysical rate of 57Ni(p,𝜸)58Cu." S.R. Carmichael, S.D. Pain, M. Siciliano, J. Allen, D.W. Bardayan, C. Boomershine, C.M. Campbell, M.P. Carpenter, K.A. Chipps, J.A. Cizewski, P.A. Copp, J. Forson, H. Garland, R. Ghirmire, J. Kovoor, T. Lauritsen, C. Müller-Gatermann, P.D. O'Malley, A. Ratkiewicz, W. Reviol, D. Seweryniak, H. Sims, C.C. Ummel, G. Wilson. (2022), J. Phys.: Conf. Ser. 2586: 012109

Presenters

  • Scott R Carmichael

    • University of Notre Dame

Authors

  • Scott R Carmichael

    • University of Notre Dame

  • Steven D. Pain

    • Oak Ridge National Laboratory / University of Tennessee-Knoxville

  • Daniel W Bardayan

    • University of Notre Dame

  • Andrew Ratkiewicz

    • Lawrence Livermore National Laboratory

  • Claus M Müller-Gatermann

    • Argonne National Laboratory
    • ANL

  • Marco Siciliano

    • Argonne National Laboratory

  • Jacob Allen

    • University of Notre Dame

  • Chevelle Boomershine

    • University of Notre Dame

  • Christopher M Campbell

    • Lawrence Berkeley National Laboratory

  • M.P. P Carpenter

    • Argonne National Laboratory

  • Kelly A. Chipps

    • Oak Ridge National Laboratory, Oak Ridge, TN, USA / Department of Physics and Astronomy, University of Tennessee, Knoxville, TN, USA
    • Oak Ridge National Laboratory

  • Jolie Antonia Cizewski

    • Rutgers University

  • Sydney Coil

    • Facility for Rare Isotope Beams

  • Patrick A Copp

    • Argonne National Laboratory

  • Cade Thomas Dembski

    • University of Notre Dame

  • Jason David Forson

    • University of Tennessee

  • Heather Irene Garland

    • Pacific Northwest National Laboratory (PNNL)

  • Tom Gore

    • University of Notre Dame

  • Rajesh Ghimire

    • Lawrence Livermore National Laboratory

  • Kate L Jones

    • University of Tennessee

  • Jerome Mathew Kovoor

    • University of Tennessee

  • Torben Lauritsen

    • Argonne National Laboratory

  • Pedro Magro

    • University of Notre Dame

  • Patrick D O'Malley

    • University of Notre Dame

  • Walter Reviol

    • Argonne National Laboratory

  • Dariusz Seweryniak

    • Argonne National Laboratory

  • Harrison E Sims

    • Rutgers University

  • Chad Conrad Ummel

    • Lawrence Livermore National Laboratory

  • Gemma L Wilson

    • Argonne National Laboratory
    • Louisiana State University