Roles of Fast Neutrino-Flavor Conversion on the Neutrino-Heating Mechanism of Core-Collapse Supernova,Physical Review Letters

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Roles of Fast Neutrino-Flavor Conversion on the Neutrino-Heating Mechanism of Core-Collapse Supernova
Physical Review Letters ( IF 8.1 ) Pub Date : 2023-05-25 , DOI: 10.1103/physrevlett.130.211401
Hiroki Nagakura ₁

Affiliation

One of the greatest uncertainties in any modeling of the inner engine of core-collapse supernova (CCSN) is neutrino-flavor conversions driven by neutrino self-interactions. We carry out large-scale numerical simulations of a multienergy, multiangle, three-flavor framework and general relativistic quantum kinetic neutrino transport in spherical symmetry with an essential set of neutrino-matter interactions under a realistic fluid profile of CCSN. Our result suggests that the neutrino heating in the gain region is reduced by

\sim 40 %

due to fast neutrino-flavor conversion (FFC). We also find that the total luminosity of neutrinos is enhanced by

\sim 30 %

, for which the substantial increase of heavy-leptonic neutrinos by FFCs are mainly responsible. This study provides evidence that FFC has a significant impact on the delayed neutrino-heating mechanism.

中文翻译：

快速中微子-味转换对核心坍缩超新星中微子加热机制的作用

核心坍缩超新星 (CCSN) 内部引擎的任何模型中最大的不确定性之一是由中微子自相互作用驱动的中微子味转换。我们在 CCSN 的真实流体剖面下进行了多能量、多角度、三味框架和球对称广义相对论量子动力学中微子输运的大规模数值模拟，以及一组基本的中微子-物质相互作用。我们的结果表明，增益区域中的中微子加热减少了