Abstract

Neutrino scattering on nuclei embedded in the hot and dense matter typical of the core collapse of supernovae, neutron star mergers, and proto-neutron stars, is studied. At finite temperatures, neutrinos experience exo- and endo-energy scattering on nuclei due to the Gamow–Teller component of a neutral current. It is shown that the average transfer of energy due to neutrino–nucleus scattering changes from positive to negative values at neutrino energies around four times higher than the temperature of the matter.

中文翻译：

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中高密度核物质中微子散射的磁和热效应

摘要

研究了中微子在核中的散射，这些核嵌入在超新星，中子星合流和原中子星的典型核坍塌的热和致密物质中。在有限的温度下，由于中性电流的Gamow-Teller分量，中微子在核上会经历外能和内能的散射。结果表明，在中微子能量比物质温度高大约四倍的情况下，中微子-核散射引起的平均能量转移从正值变为负值。