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arXiv · 2305.11207

Fast Neutrino Flavor Conversions can Help and Hinder Neutrino-Driven Explosions

Jakob Ehring·Sajad Abbar·Hans-Thomas Janka·Georg Raffelt·Irene Tamborra
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Abstract

We present the first simulations of core-collapse supernovae in axial symmetry with feedback from fast neutrino flavor conversion (FFC). Our schematic treatment of FFCs assumes instantaneous flavor equilibration under the constraint of lepton-number conservation individually for each flavor. Systematically varying the spatial domain where FFCs are assumed to occur, we find that they facilitate SN explosions in low-mass (9-12 solar masses) progenitors that otherwise explode with longer time delays, whereas FFCs weaken the tendency to explode of higher-mass (around 20 solar masses) progenitors.

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Jakob Ehring, Sajad Abbar, Hans-Thomas Janka, Georg Raffelt, Irene Tamborra. 2023-05-18. Fast Neutrino Flavor Conversions can Help and Hinder Neutrino-Driven Explosions. https://doi.org/10.1103/physrevlett.131.061401

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