The ν process in the innermost supernova ejecta
1 Institute for Nuclear Physics (Theory Department), Darmstadt University of Technology, Schlossgartenstraße 2, 64289 Darmstadt, Germany
2 Helmholtz Center for Heavy Ion Research (GSI), Planckstr. 1, 64259 Darmstadt, Germany
3 Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
4 Physics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6354, USA
5 Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996-1200, USA
Published online: 30 December 2017
The neutrino-induced nucleosynthesis (ν process) in supernova explosions of massive stars of solar metallicity with initial main sequence masses between 13 and 30 M⊙ has been studied with an analytic explosion model using a new extensive set of neutrino-nucleus cross-sections and spectral properties that agree with modern supernova simulations. The production factors for the nuclei 7Li, 11B, 19F, 138La and 180Ta, are still significantly enhanced but do not reproduce the full solar abundances. We study the possible contribution of the innermost supernova eject to the production of the light elements 7Li and 11B with tracer particles based on a 2D supernova simulation of a 12 M⊙ progenitor and conclude, that a contribution exists but is negligible for the total yield for this explosion model.
© The Authors, published by EDP Sciences, 2017
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