Joint HEP/Theory Seminar: Toward an understanding of neutrino flavor mixing in core-collapse supernovae

Friday, February 28, 2020 - 1:00pm

MacKenzie Warren, NCSU

The detection of neutrinos from the next galactic core-collapsesupernova (CCSN) has become almost a certainty. However, most modernsimulations of core-collapse supernovae still do not include neutrinoflavor mixing, due to uncertainties in the fundamental physics andlimited computational resources. The role of neutrino flavor mixing inthe explosion mechanism and the expected observed neutrino signal arethus not fully understood. I will present our current effort toinclude the effects of neutrino flavor mixing in the FLASH supernovacode using an approximation to the full quantum kinetic equations. Iwill also discuss the prospects of what can be learned about flavormixing from observations of the next galactic CCSN. With a betterunderstanding of both flavor mixing in the CCSN environment and how tointerpret observations, we can use neutrino detections as a way toprobe the CCSN environment and constrain fundamental neutrino physics.

Physics 278

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