Heidelberg 2015 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 11: Nuclear Astrophysics 1
HK 11.5: Talk
Monday, March 23, 2015, 18:15–18:30, K/HS2
Neutrino interactions with supernova matter⋆ — •Alexander Bartl1,2, Christopher J. Pethick3,4, Achim Schwenk2,1, and Maria Voskresenskaya2,1 — 1Institut für Kernphysik, Technische Universität Darmstadt — 2ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH — 3The Niels Bohr International Academy, The Niels Bohr Institute, Copenhagen, Denmark — 4NORDITA, Royal Institute of Technology and Stockholm University, Stockholm, Sweden
Neutrino pair bremsstrahlung and absorption (NN↔ NNνν) as well as inelastic scattering of neutrinos (NNν↔ν NN) are of great relevance for the generation of and energy transport by neutrinos in core-collapse supernovae. In this talk, we will present a unified treatment of the energy transfer due to inelastic neutrino scattering on interacting nucleons and due to nuclear recoil. We will show that nuclear interaction effects can be a significant contribution to the total energy transfer and hence should be included in supernova simulations. In addition, we discuss the impact of neutrino rates involving strongly interacting nucleons in these simulations.
⋆This work was supported by the Studienstiftung des Deutschen Volkes, ARCHES, the Helmholtz Alliance HA216/EMMI and the ERC Grant No. 307986 STRONGINT.