Year: 2014
Type: preprint
Abstract: Accretion disks arising from neutron star- neutron star mergers or black hole- neutron star mergers produce large numbers of neutrinos and antineutrinos. In contrast to other astrophysical scenarios, like supernovae, in mergers the antineutrinos outnumber the neutrinos. This antineutrino dominance gives neutrinos from merger disks the opportunity to exhibit new oscillation physics, specifically a matter-neutrino resonance. We explore this resonance, finding that consequences can be a large transition of $ν_e$ to other flavors, while the $\barν_e$s return to their initial state. We present numerical calculations of neutrinos from merger disks and compare with a single energy model. We explain both the basic features and the conditions for a transition.
Source: arXiv (Cornell University)
Authors: Malkus, A., Friedland, A., McLaughlin, G. C.
Language: English
Topic: Neutrino Physics Research
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: TAS::89 0222::TAS; NEW; COLLABORATIVE RESEARCH: NEUTRINOS AND NUCLEOSYNTHESIS IN HOT AND DENSE MATTER; PI - GAIL MCLAUGHLIN, G222768804, PHYSICS OF SUPERNOVAE AND GAMMA RAY BURSTS: WEAK INTERACTIONS AND ELEMENT SYNTHESIS, NEUTRINOS AND NUCLEOSYNTHESIS: SUPERNOVAE, GAMMA RAY BURSTS, AND LOW ENERGY BETA BEAMS
OpenAlex ID: W1586533701