18–24 Jun 2017
UC Irvine, Irvine, CA, USA
US/Pacific timezone

Fast neutrino flavor conversions near the SN core

23 Jun 2017, 14:20
15m
Pacific Ballroom ABC (UC Irvine, Irvine, CA, USA)

Pacific Ballroom ABC

UC Irvine, Irvine, CA, USA

Working Group Sessions Neutrino Physics Working Group Joint Working Group: Astroparticle and Neutrino Physics

Speaker

Mr Alessandro Mirizzi (University of Bari)

Description

We point out that neutrino fluxes from a supernova can show substantial flavor conversions almost immediately above the core. Using linear stability analyses and numerical solutions of the fully nonlinear equations of motion, we perform a detailed study of these fast conversions. Using fluxes and angular distributions predicted by supernova simulations, we find that fast conversions can occur within tens of nanoseconds, only a few meters away from the putative neutrinospheres. If these fast flavor conversions indeed take place, they would have important implications for the supernova explosion mechanism and nucleosynthesis.

Primary author

Mr Alessandro Mirizzi (University of Bari)

Presentation materials