keV-mass sterile neutrinos mixing with tau neutrinos can generate a tau lepton asymmetry larger than 0.15, and including the dynamical feedback relaxes supernova bounds on sterile neutrino mixing.
Neutrino Flavor Conversion in a Supernova Core
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
If $\nu_\mu$ or $\nu_\tau$ mix with $\nu_e$, neutrino oscillations and collisions in a supernova (SN) core allow these flavors effectively to participate in $\beta$ equilibrium and thus to obtain a large chemical potential. If a sterile species mixes with $\nu_e$, these effects lead to an anomalous loss of energy and lepton number. We study flavor conversion in a SN core on the basis of a new kinetic equation which rigorously includes neutrino interference and degeneneracy effects. Our discussion serves as an example and illustration of the properties of this ``non-abelian Boltzmann equation''.
citation-role summary
background 1
citation-polarity summary
fields
astro-ph.HE 1years
2019 1verdicts
CONDITIONAL 1roles
background 1polarities
unclear 1representative citing papers
citing papers explorer
-
Tau lepton asymmetry by sterile neutrino emission -- Moving beyond one-zone supernova models
keV-mass sterile neutrinos mixing with tau neutrinos can generate a tau lepton asymmetry larger than 0.15, and including the dynamical feedback relaxes supernova bounds on sterile neutrino mixing.