期刊
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
卷 -, 期 4, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1475-7516/2009/04/030
关键词
neutrino properties; supernova neutrinos
Neutrino and antineutrino fluxes from a core-collapse galactic supernova are studied, within are presentative 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.
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