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Open Access Publications from the University of California

Connection between flavor-mixing of cosmologically significant neutrinos and heavy element nucleosynthesis in supernovae

  • Author(s): Qian, Yong-Zhong
  • Fuller, George M
  • Mathews, Grant J
  • Mayle, Ron W
  • Wilson, James R
  • Woosley, SE
  • et al.

We use heavy element nucleosynthesis from supernovae to probe the mixing of νe with ντ (or νμ) possessing cosmologically significant masses (1 to 100 eV). We conclude that the ντ(νμ)-νe vacuum mixing angle must satisfy sin22θ<10-5, in order to ensure that r-process heavy elements can be produced in neutrino-heated supernova ejecta. Mixing at a level exceeding this limit precludes r-process nucleosynthesis in this site. © 1993 The American Physical Society.

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