Constraining the electron-capture rates of neutron rich nuclei with (d,<sup>2</sup>He) reaction in inverse kinematics.

ORAL

Abstract

Nuclear charge-exchange reactions can be used to estimate the electron-capture rates which are key quantities in a variety of astrophysical scenarios. Over the past decades, great progress has been made to constrain electron-capture rates on stable nuclei by using reactions in forward kinematics. However, the unstable neutron-rich nuclei capturing the most during, for example, the core-collapse supernovae, remained inaccessible. Recently a (d,2He) charge-exchange reaction in inverse kinematics with the Active-Target Time-Projection Chamber and the S800 Spectrograph was developed at NSCL, for extracting Gamow-Teller strengths in the β+ direction on unstable nuclei. This makes it possible, for the first time, to constrain electron-capture rates on neutron-rich nuclei. In this talk I will discuss recent results of the pilot 14O(d,2He) experiment.

*This work is supported by the National Science Foundation under Grant PHY-193247145, "Windows on the Universe: Nuclear Astrophysics at the NSCL".

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Presenters

  • Simon Giraud

    • Michigan State University NSCL/FRIB
    • FRIB/NSCL

Authors

  • Simon Giraud

    • Michigan State University NSCL/FRIB
    • FRIB/NSCL

  • Juan C Zamora

    • Uni- versidade de São Paulo (USP). Instituto de Física (IF)
    • Universidade de Sao Paulo

  • Miles DeNudt

    • Michigan State University

  • Remco G Zegers

    • Michigan State University
    • FRIB

  • Daniel Bazin

    • Michigan State University

  • Yassid Ayyad

    • Universidade de Santiago de Compostela
    • University of Santiago de Compostela
    • Instituto Galego de Física de Altas Enerxías
    • NSCL
    • Michigan State University

  • Saul Beceiro-Novo

    • Michigan State University

  • Jie Chen

    • Argonne National Laboratory

  • Marco Cortesi

    • Michigan State University NSCL/FRIB
    • NSCL
    • Michigan State University

  • Cavan Maher

    • Michigan State University

  • Wolfgang Mittig

    • Michigan State University

  • Felix Ndayisabye

    • Michigan State University

  • Shumpei Noji

    • Michigan State University

  • Jorge Pereira

    • Michigan State University

  • Zarif Rahman

    • Michigan State University

  • Jaclyn M Schmitt

    • Michigan State University

  • Zach M Serikow

    • Michigan State University

  • Jason Surbrook

    • Michigan State University

  • Lijie Sun

    • National Superconducting Cyclotron Labor
    • Michigan State University

  • Nathan Watwood

    • Michigan State University

  • Tyler Wheeler

    • Michigan State University