Quasi-steady flavor configuration of multi-energy neutrino ensembles
Abstract
Neutrino flavor conversion profoundly impacts the explosion mechanism and multi-messenger emission of core-collapse supernovae. Yet, state-of-the-art hydrodynamic simulations of neutrino-dense astrophysical environments cannot account for neutrino quantum kinetics, necessitating subgrid schemes to model the impact of neutrino self-interaction on the quasi-steady flavor configuration. We present semi-analytic approximations for the outcomes of both slow and fast flavor conversions in quasi-homogeneous systems with periodic boundary conditions. Independent of the mass ordering, our ansatz demonstrates excellent agreement with multi-angle and multi-energy solutions of the neutrino kinetic equations across a wide range of representative (anti)neutrino distributions.
Versions
Related
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BibTeX
@misc{goimilgarcia2026quasisteady,
title = {{Quasi-steady flavor configuration of multi-energy neutrino ensembles}},
author = {Manuel Goimil-García and Irene Tamborra},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2608.06464},
eprint = {2608.06464},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.06464},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Quasi-steady flavor configuration of multi-energy neutrino ensembles
AU - Manuel Goimil-García
AU - Irene Tamborra
PY - 2026
DA - 2026/10/27
PB - arXiv
DO - 10.48550/arxiv.2608.06464
UR - https://arxiv.org/abs/2608.06464
AB - Neutrino flavor conversion profoundly impacts the explosion mechanism and multi-messenger emission of core-collapse supernovae. Yet, state-of-the-art hydrodynamic simulations of neutrino-dense astrophysical environments cannot account for neutrino quantum kinetics, necessitating subgrid schemes to model the impact of neutrino self-interaction on the quasi-steady flavor configuration. We present semi-analytic approximations for the outcomes of both slow and fast flavor conversions in quasi-homogeneous systems with periodic boundary conditions. Independent of the mass ordering, our ansatz demonstrates excellent agreement with multi-angle and multi-energy solutions of the neutrino kinetic equations across a wide range of representative (anti)neutrino distributions.
ER -