Helicity coherence in binary neutron star mergers and non-linear feedback - Archive ouverte HAL
Article Dans Une Revue Physical Review D Année : 2017

Helicity coherence in binary neutron star mergers and non-linear feedback

Amélie Chatelain
  • Fonction : Auteur
  • PersonId : 1282472

Résumé

Neutrino flavor conversion studies based on astrophysical environments usually implement neutrino mixings, neutrino interactions with matter, and neutrino self-interactions. In anisotropic media, the most general mean-field treatment includes neutrino mass contributions as well, which introduce a coupling between neutrinos and antineutrinos termed helicity or spin coherence. We discuss resonance conditions for helicity coherence for Dirac and Majorana neutrinos. We explore the role of these mean-field contributions on flavor evolution in the context of a binary neutron star merger remnant. We find that resonance conditions can be satisfied in neutron star merger scenarios while adiabaticity is not sufficient for efficient flavor conversion. We analyze our numerical findings by discussing general conditions to have multiple Mikheyev-Smirnov-Wolfenstein-like resonances, in the presence of nonlinear feedback, in astrophysical environments.

Dates et versions

hal-03171504 , version 1 (17-03-2021)

Identifiants

Citer

Amélie Chatelain, Cristina Volpe. Helicity coherence in binary neutron star mergers and non-linear feedback. Physical Review D, 2017, 95 (4), pp.043005. ⟨10.1103/PhysRevD.95.043005⟩. ⟨hal-03171504⟩
27 Consultations
0 Téléchargements

Altmetric

Partager

More