2020/05/28 by Francesco Capozzi, Madhurima Chakraborty, Sovan Chakraborty +1 · 2 citations
Physics and Astronomy · #Astrophysics #Astrophysics and Cosmic Phenomena #Degeneracy (biology) #Electron #Electron neutrino #Flavor #Lepton #Massless particle #Muon #Neutrino #Neutrino Physics Research #Neutrino oscillation #Nuclear physics #Nucleosynthesis #Particle physics #Particle physics theoretical and experimental studies #Physics #Supernova #Tau neutrino #Type II supernova #astro-ph.HE #astro-ph.SR #hep-ph
paper · pdf · doi:10.1103/physrevlett.125.251801
published as Phys. Rev. Lett. 125, 251801 (2020) · 6 pages, 4 figures, comments welcome
arxiv created 2020/05/28 · openalex publication_date 2020/12/16 · arxiv updated 2021/01/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Neutrinos in a core-collapse supernova can undergo fast flavor conversions with a possible impact on the explosion mechanism and nucleosynthesis. We perform the first nonlinear simulations of fast conversions in the presence of three neutrino flavors. The recent supernova simulations with muon production call for such an analysis, as they relax the standard νμ,τ=ν[over ¯]μ,τ (two-flavor) assumption. Our results show the significance of muon and tau lepton number angular distributions, together with the traditional electron lepton number ones. Indeed, our three-flavor results are potentially very different from two-flavor ones. These results strengthen the need to further investigate the occurrence of fast conversions in supernova simulation data, including the degeneracy breaking of mu and tau neutrinos.