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A technique for the study of (n,p) reactions of astrophysical interest with SECAR

ORAL

Abstract

Neutron-induced reactions are essential for the advancement of nucleosynthesis for elements heavier than iron. Recent studies show that key (n,p) reactions starting from $^{56}$Ni accelerate the so-called neutrino-p process, enabling the synthesis of heavy elements in type II Supernovae. The $\nu$p-process occurs in slightly proton-rich regions in the neutrino-driven wind of core-collapse supernovae, via a sequence of (p,$\gamma$) and (n,p) reactions, where a small abundance of neutrons originates from anti-neutrino captures on free protons. The study of such (n,p) reactions is achievable via the measurement of the reverse (p,n) reactions. The challenge in studying such reactions is that the recoils and the unreacted projectiles have nearly identical masses. An appropriate separation level is achievable with the SEparator for CApture Reactions at FRIB. The first direct measurement of the p($^{58}$Fe,n)$^{58}$Co reaction was possible by the in-coincidence detection of the $^{58}$Co at the end of SECAR and the emitted neutrons. With this reaction measurement, we pave the path for (p,n) reaction studies of significant astrophysical interest with SECAR using radioactive beams provided by FRIB. In this talk, preliminary results of the aforementioned measurement along with the development of the experimental method will be discussed.

Presenters

  • Pelagia Tsintari

    Central Michigan University

Authors

  • Pelagia Tsintari

    Central Michigan University

  • Georgios Perdikakis

    Central Michigan University

  • Fernando Montes

    Michigan State University, Facility for Rare Isotope Beams

  • Nikolaos Dimitrakopoulos

    Central Michigan University

  • Ruchi Garg

    Michigan State University

  • Hendrik Schatz

    Michigan State University

  • Caleb A Marshall

    Ohio University

  • Manoel Couder

    University of Notre Dame

  • Georg P Berg

    University of Notre Dame

  • Remco G Zegers

    Michigan State University

  • Jorge Pereira

    Michigan State University

  • Cavan A Maher

    Michigan State University

  • Z. P Meisel

    Ohio University

  • Jeffery C Blackmon

    Louisiana State University

  • Michael S Smith

    Oak Ridge National Lab

  • Kelly A Chipps

    ORNL

  • Catherine M Deibel

    Louisiana State University

  • Uwe Greife

    Colorado School of Mines

  • Ashley A Hood

    Texas A&M University

  • Rahul Jain

    Michigan State University

  • Sara Miskovich

    SLAC National Accelerator Laboratory, Stanford Linear Accelerator Center

  • Thomas J Ruland

    Louisiana State University

  • Kiana Setoodehnia

    Michigan state University, FRIB, Facility for Rare Isotopes Beams, Facility for Rare Isotope Beams

  • Louis Wagner

    Michigan State University