B11 and Constraints on Neutrino Oscillations and Spectra from Neutrino Nucleosynthesis

Sam M. Austin, Alexander Heger, and Clarisse Tur
Phys. Rev. Lett. 106, 152501 – Published 11 April 2011

Abstract

We study the sensitivity to variations in the triple-alpha and C12(α,γ)O16 reaction rates, of the yield of the neutrino-process isotopes Li7, B11, F19, La138, and Ta180 in core-collapse supernovae. Compared to solar abundances, less than 15% of Li7, about 25%–80% of F19, and about half of La138 is produced in these stars. Over a range of ±2σ for each helium-burning rate, B11 is overproduced and the yield varies by an amount larger than the variation caused by the effects of neutrino oscillations. The total B11 yield, however, may eventually provide constraints on supernova neutrino spectra.

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  • Received 30 November 2010

DOI:https://doi.org/10.1103/PhysRevLett.106.152501

© 2011 American Physical Society

Authors & Affiliations

Sam M. Austin1,2,*, Alexander Heger3,†, and Clarisse Tur1

  • 1National Superconducting Cyclotron Laboratory and Joint Institute for Nuclear Astrophysics, 1 Cyclotron, Michigan State University, East Lansing, Michigan 48824-1321, USA
  • 2Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
  • 3School of Physics and Astronomy and Joint Institute for Nuclear Astrophysics, University of Minnesota, Minneapolis, Minnesota 55455-0149

  • *austin@nscl.msu.edu http://www.nscl.msu.edu/~austin
  • alex@physics.umn.edu

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Vol. 106, Iss. 15 — 15 April 2011

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