Seminars IFIC

Webinar: Heavy sterile neutrino emission in core-collapse supernovae: constraints and signatures

by Leonardo Mastrototaro (University of Bari)

Europe/Madrid
retransmitted from IFIC Seminar Room, 1.1.1 (Online)

retransmitted from IFIC Seminar Room, 1.1.1

Online

Paterna (Valencia)
Description

Heavy sterile neutrinos with masses in the MeV-GeV are predicted in extension of the Standard Model, like neutrino Minimal Standard Model (νMSM). In this talk, we consider the possibility that heavy sterile neutrinos with masses O(100) MeV are produced in the core of a collapsing supernova (SN). We will constrain the mass-mixing parameter space of the heavy sterile neutrino, from the energy loss argument from SN 1987A. Finally, we will characterize the observable active neutrino signal in large underground detectors, induced by decays of heavy sterile neutrinos in the SN envelope.

This talk is based on: Leonardo Mastrototaro, Alessandro Mirizzi, Pasquale Dario Serpico and Arman Esmaili, “Heavy sterile neutrino emission in core-collapse su- pernovae: Constraints and signatures” (2019), arXiV:1910.10249

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