The ν process in the innermost supernova ejecta

Conference · Fri Dec 01 00:00:00 EST 2017

DOI:https://doi.org/10.1051/epjconf/201716501045· OSTI ID:1435283

Sieverding, Andre ^[1]; Martínez-Pinedo, Gabriel ^[1]; Langanke, Karlheinz ^[2]; Harris, Austin  ^[3]; Hix, W Raphael  ^[3]

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1. Institut für Kernphysik, Technische Universität Darmstadt, Germany
2. Gesellschaft fur Schwerionenforschung (GSI), Germany
3. ORNL

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1435283
• Resource Relation: Journal Volume: 165; Conference: Nuclear Physics in Astrophysics VIII (NPA8 2017) - Catania, , Italy - 6/18/2017 8:00:00 AM-6/23/2017 8:00:00 AM
• Country of Publication: United States
• Language: English