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Title: Physics of neutrino flavor transformation through matter–neutrino resonances

In astrophysical environments such as core-collapse supernovae and neutron star–neutron star or neutron star–black hole mergers where dense neutrino media are present, matter–neutrino resonances (MNRs) can occur when the neutrino propagation potentials due to neutrino–electron and neutrino–neutrino for-ward scattering nearly cancel each other. We show that neutrino flavor transformation through MNRs can be explained by multiple adiabatic solutions similar to the Mikheyev–Smirnov–Wolfenstein mecha-nism. As a result, we find that for the normal neutrino mass hierarchy, neutrino flavor evolution through MNRs can be sensitive to the shape of neutrino spectra and the adiabaticity of the system, but such sensitivity is absent for the inverted hierarchy.
Authors:
ORCiD logo [1] ;  [2] ;  [3]
  1. Technische Univ. Darmstadt, Darmstadt (Germany)
  2. Univ. of New Mexico, Albuquerque, NM (United States)
  3. Univ. of Minnesota, Minneapolis, MN (United States)
Publication Date:
OSTI Identifier:
1226679
Grant/Contract Number:
SC0008142; FG02-87ER40328
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 752; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Univ. of New Mexico, Albuquerque, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
neutrino oscillations; dense neutrino medium; black hole accretion disk; core-collapse supernova