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Can a nearby supernova explain the <sup>10</sup>Be excess in the Early Solar System?

ORAL

Abstract

Excess of 10Be in the meteorites has mostly been studied in the context of non-thermal, in-situ nucleosynthesis due to cosmic rays or Solar energetic particles from Sun in its early phase. Recently, a low mass core-collapse supernova has been postulated as a possible source of 10Be. However, in CCSNe a major uncertainty for the production of 10Be in CCSNe is the 10Be(p,α)7Li reaction rate. We will show that a newly found resonance state in 11B (Er ~ 190 keV) is the single-most important state in the Gamow window which increases the reaction rate by many orders of magnitude. As the new reaction rate decreases the 10Be yield, we will show that low mass CCSN is unlikely to produce enough 10Be to explain the observed excess in meteorites. Remaining uncertainties in 10Be(p,α)7Li reaction rate and experimental plans to further constrain this reaction rate will be discussed.

Publication: The role of low-lying resonances for the10Be(p, a)7Li reaction rate and implications for the formation of the Solar System,<br>A. Sieverding, J. S. Randhawa, D. Zetterberg et al., PRC 2022 (accepted) ( arXiv:2203.06524 [astro-ph.HE])

Presenters

  • Jaspreet Randhawa

    University of Notre Dame

Authors

  • Jaspreet Randhawa

    University of Notre Dame

  • Andre Sieverding

    Physics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6354, USA

  • D. Zetterberg

    Physics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6354, USA

  • Richard J deBoer

    University of Notre Dame

  • Tan Ahn

    University of Notre Dame

  • R. Mancino

    GSI, Darmstadt

  • Gabriel Martinez-Pinedo

    GSI Darmstadt

  • William R Hix

    Oak Ridge National Lab