Impact of active-sterile neutrino mixing on supernova explosion and nucleosynthesis

Abstract

We show that for the active-sterile flavor mixing parameters suggested by the reactor neutrino anomaly, substantial \ν_e-\ν_s and \bar \ν_e-\bar \ν_s conversion occurs in regions with electron fraction of \approx 1/3 near the core of an 8.8 M_sun electron-capture supernova. Compared to the case without such conversion, the neutron-richness of the ejected material is enhanced to allow production of elements from Sr, Y, and Zr up to Cd in broad agreement with observations of the metal-poor star HD 122563. Active-sterile flavor conversion also strongly suppresses neutrino heating at times when it is important for the revival of the shock. Our results suggest that simulations of supernova explosion and nucleosynthesis may be used to constrain active-sterile mixing parameters in combination with neutrino experiments and cosmological considerations.

5 pages, 4 figures; treatment of feedback on the evolution of electron fraction, corresponding integrated nucleosynthesis and effects on neutrino heating are included; references updated

References in corpus (12)

• The Reactor Antineutrino Anomaly
• Neutron-capture elements in the very metal-poor star HD122563
• Cosmology seeking friendship with sterile neutrinos
• A robust upper limit on N_eff from BBN, circa 2011
• Pragmatic View of Short-Baseline Neutrino Oscillations
• Role of dense matter in collective supernova neutrino transformations
• Limits on nu_e and anti-nu_e disappearance from Gallium and reactor experiments
• Dynamics of shock propagation and nucleosynthesis conditions in O-Ne-Mg core supernovae
• Dark matter sterile neutrinos in stellar collapse: alteration of energy/lepton number transport and a mechanism for supernova explosion enhancement
• Sterile Neutrino-Enhanced Supernova Explosions
• Turbulent Supernova Shock Waves and the Sterile Neutrino Signature in Megaton Water Detectors
• Fission Cycling in Supernova Nucleosynthesis: Active-Sterile Neutrino Oscillations

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