Active-sterile Neutrino Oscillations in Neutrino-driven Winds: Implications for Nucleosynthesis

Abstract

A protoneutron star produced in a core-collapse supernova (CCSN) drives a wind by its intense neutrino emission. We implement active-sterile neutrino oscillations in a steady-state model of this neutrino-driven wind to study their effects on the dynamics and nucleosynthesis of the wind in a self-consistent manner. Using vacuum mixing parameters indicated by some experiments for a sterile ${\nu }_s$ of $\sim 1$ eV in mass, we observe interesting features of oscillations due to various feedback. For the higher ${\nu }_s$ mass values, we find that oscillations can reduce the mass loss rate and the wind velocity by a factor of $\sim 1.6$--2.7 and change the electron fraction critical to nucleosynthesis by a significant to large amount. In the most dramatic cases, oscillations shifts nucleosynthesis from dominant production of ${}^{45}$Sc to that of ${}^{86}$Kr and ${}^{90}$Zr during the early epochs of the CCSN evolution.

arXiv comment18 pages, 13 figures

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Cited by in corpus (18)

• Potential Impact of Fast Flavor Oscillations on Neutrino-driven Winds and Their Nucleosynthesis
• Neutrino signal from proto-neutron star evolution: Effects of opacities from charged-current-neutrino interactions and inverse neutron decay
• Neutrinos and nucleosynthesis of elements
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• Quantum information and quantum simulation of neutrino physics
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• Collective neutrino oscillations and heavy-element nucleosynthesis in supernovae: exploring potential effects of many-body neutrino correlations
• Probing active-sterile neutrino transition magnetic moment on coherent elastic solar neutrino-nucleus scattering
• Neutrino spin oscillations in polarized matter
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• Probing self-interacting sterile neutrino dark matter with the diffuse supernova neutrino background
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• Many-body collective neutrino oscillations: recent developments
• Exploring entanglement and spectral split correlations in three-flavor collective neutrino oscillations
• Resonant Production of Light Sterile Neutrinos in Compact Binary Merger Remnants
• Inference of bipolar neutrino flavor oscillations near a core-collapse supernova, based on multiple measurements at Earth
• Effects of spacetime geometry on neutrino oscillation inside a Core-Collapse Supernova