Köln 2025 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 37: Nuclear Astrophysics V
HK 37.2: Vortrag
Mittwoch, 12. März 2025, 18:00–18:15, SR 0.03 Erw. Physik
Fast neutrino flavor conversions in a supernova — •Zewei Xiong1, Meng-Ru Wu2,4,5, Manu George2, Gabriel Martínez-Pinedo1,6, Tobias Fischer3, Noshad Khosravi Largani3, and Chun-Yu Lin7 — 1GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany — 2Institute of Physics, Academia Sinica, Taipei 11529, Taiwan — 3Institute of Theoretical Physics, University of Wroclaw, plac Maksa Borna 9, 50-204 Wroclaw, Poland — 4Institute of Astronomy and Astrophysics, Academia Sinica, Taipei 10617, Taiwan — 5Physics Division, National Center for Theoretical Sciences, Taipei 10617, Taiwan — 6Institut für Kernphysik (Theoriezentrum), Fachbereich Physik, Technische Universität Darmstadt, Schlossgartenstraße 2, 64289 Darmstadt, Germany — 7National Center for High-performance Computing, Hsinchu 30076, Taiwan
Dense astrophysical environments such as core-collapse supernovae are profuse sources of neutrinos. When the neutrino flux is sufficiently intense, those neutrinos can undergo collective flavor transition, the so-called fast flavor conversions (FFCs), which have been found to generally exist in supernovae. In this work, we present a comprehensive study of the FFCs by solving the multi-energy and multi-angle quantum kinetic equations based on a static and spherically symmetric CCSN matter background profile. We investigate the emergence and evolution of FFCs. We also assess their potential impacts on the neutrino heating mechanism and nucleosynthesis.