title: Flavor evolution of the neutronization neutrino burst from an O-Ne-Mg core-collapse supernova.
abstract: We present results of 3-neutrino flavor evolution simulations for the neutronization burst from an O-Ne-Mg core-collapse supernova. We find that nonlinear neutrino self-coupling engineers a single spectral feature of stepwise conversion in the inverted neutrino mass hierarchy case and in the normal mass hierarchy case, a superposition of two such features corresponding to the vacuum neutrino mass-squared differences associated with solar and atmospheric neutrino oscillations. These neutrino spectral features offer a unique potential probe of the conditions in the supernova environment and may allow us to distinguish between O-Ne-Mg and Fe core-collapse supernovae.
authors.affiliation: Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195, USA.
authors.forename: Huaiyu
authors.initials: H
authors.lastname: Duan
authors.forename: George M
authors.initials: GM
authors.lastname: Fuller
authors.forename: J
authors.initials: J
authors.lastname: Carlson
authors.forename: Yong-Zhong
authors.initials: YZ
authors.lastname: Qian