稠密物质在集体超新星中微子变换中的作用
Role of dense matter in collective supernova neutrino transformations
摘要：
对于从超新星（SN）核流出的中微子，当转换区的电子密度n_e显著超过中微子密度n_nu时，致密物质会抑制自诱导味转换。如果n_e与n_nu相当，则发现多角度退相干，而标准的自诱导变换行为要求在变换区域中n_nu安全地高于n_e。在超新星核心反弹后的早期阶段，这个条件不需要满足。我们新的多角度效应是中微子从非点状源流出时以不同轨迹行进的微妙结果。
英文摘要：
For neutrinos streaming from a supernova (SN) core, dense matter suppresses self-induced flavor transformations if the electron density n_e significantly exceeds the neutrino density n_nu in the conversion region. If n_e is comparable to n_nu one finds multi-angle decoherence, whereas the standard self-induced transformation behavior requires that in the transformation region n_nu is safely above n_e. This condition need not be satisfied in the early phase after supernova core bounce. Our new multi-angle effect is a subtle consequence of neutrinos traveling on different trajectories when streaming from a source that is not point-like.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
