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Open Access Publications from the University of California

Flavor evolution of the neutronization neutrino burst from an O-Ne-Mg core-collapse supernova.

  • Author(s): Duan, Huaiyu
  • Fuller, George M
  • Carlson, J
  • Qian, Yong-Zhong
  • et al.

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.

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