SMuK 2023 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 19: Nuclear Astrophysics II
HK 19.5: Vortrag
Dienstag, 21. März 2023, 18:15–18:30, SCH/A419
Supernova Simulations with Consistent Six Species Neutrino Transport — •Ignacio L. Arbina1,2, Gabriel Martinez-Pinedo2,1, and Tobias Fischer3 — 1Institut für Kernphysik (Theoriezentrum), Fachbereich Physik, Technische Universit *at Darmstadt, Schlossgartenstraße 2, 64289 Darmstadt, Germany — 2GSI Helmholtzzentrum für Schwerioneneforschung, Planckstraße 1, 64291 Darmstadt, Germany — 3Institute of Theoretical Physics, University of Wroclaw, Pl. M. Borna 9, 50-204 Wroclaw, Poland
Core-Collapse Supernova (CCSN) are expected to explode by the delayed neutrino-driven mechanism. It requires an accurate treatment of the neutrino-matter interactions together with a solution to the neutrino radiation transport for all lepton flavours. Typical implementations usually consider four species neutrino schemes assuming identical distributions for the muon and tau neutrino flavours. However, the conditions shortly after bounce allow for the production of muons as discussed in the studies by Bollig et al. (2017) and Fischer et al. (2020). This muon formation adds new reaction channels in the lepton sector that couple the electron and muon flavours through weak interaction processes. For this purpose, we implement a Boltzmann neutrino transport scheme for the six neutrino species that are evolved consistently with the internal energy, and the electron and muon abundances. We explore the sensitivity to different sets of opacities computed consistently with the underlying equation of state and determine the most important reactions contributing to the muonization of supernova matter.