2008/12/31 by G. L. Fogli, Gianluigi Fogli, E. Lisi +4 · 37 citations
Physics and Astronomy · #Astrophysics #Astrophysics and Cosmic Phenomena #Event (particle physics) #Mixing (physics) #Neutrino #Neutrino Physics Research #Neutrino oscillation #Nuclear physics #Observable #Particle physics #Particle physics theoretical and experimental studies #Physics #Supernova #Unobservable #astro-ph #hep-ex #hep-ph
paper · pdf · doi:10.1088/1475-7516/2009/04/030
published in Journal of Cosmology and Astroparticle Physics 2009(04), 030 (Institute of Physics) · 22 pages, including 9 figures (1 section with 3 figures added). Accepted for publication in JCAP
arxiv created 2009/04/28 · openalex publication_date 2009/04/28 · arxiv updated 2010/04/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Neutrino and antineutrino fluxes from a core-collapse galactic supernova are studied, within a representative three-flavor scenario with inverted mass hierarchy and tiny 1-3 mixing. The initial flavor evolution is dominated by collective self-interaction effects, which are computed in a full three-family framework along an averaged radial trajectory. During the whole time span considered ( t = 1–20 s), neutrino and antineutrino spectral splits emerge as dominant features in the energy domain for the final, observable fluxes. The main results can be useful for SN event rate simulations in specific detectors. Some minor or unobservable three-family features (e.g., related to the muonic-tauonic flavor sector), as well as observable effects due to variations in the spectral input, are also discussed for completeness.