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HK: Fachverband Physik der Hadronen und Kerne

HK 40: Nukleare Astrophysik

HK 40.2: Gruppenbericht

Donnerstag, 20. März 2014, 14:30–15:00, HZ 5

The impact of neutrino oscillations on supernova explosion, nucleosynthesis, and the neutrino signals. — •Meng-Ru Wu¹, Tobias Fischer², Lutz Huther¹, Gabriel Martinez-Pinedo^1,3, and Yong-Zhong Qian⁴ — ¹Institut für Kernphysik, Technische Universität Darmstadt, Darmstadt, Germany — ²Institute for Theoretical Physics, University of Wrocław, Wrocław, Poland — ³GSI Helmholtzzentrum für Schwerioneneforschung, Darmstadt, Germany — ⁴School of Physics and Astronomy, University of Minnesota, Minneapolis, USA

Core-collapse supernovae are among the major astrophysical sites that produce elements heavier than iron. They are also the most intense sources for MeV neutrinos. These neutrinos play essential roles in various physical processes in supernovae, such as the revival of the supernova shock by neutrino heating and any neutrino-associated nucleosynthesis. Consequently, neutrino oscillations among active flavors or between active and sterile flavors might affect the above mentioned processes significantly. In this talk, we will present our recent calculation of neutrino oscillations in supernovae and their impact on supernova explosion and nucleosynthesis. In addition, we will discuss the expected galactic supernova neutrino signals in current and planned neutrino detectors and their possible implication for both physics of supernovae and the fundamental property of neutrinos.