标题： 用超级神冈探测器观测超新星中微子光曲线。 二。 核状态方程的影响 显示英文标题

标题： Observing Supernova Neutrino Light Curves with Super-Kamiokande. II. Impact of the Nuclear Equation of State

摘要： 使用原中子星 (PNS) 冷却的模拟结果，评估了超 Kamiokande 中超新星中微子事件率的晚期演化。在目前的工作中，我们扩展了须和等人（2019年）的结果 [arXiv:1904.09996]，他们研究了 PNS 质量的依赖性，但重点关注核状态方程 (EOS) 的影响。我们发现，中微子事件率取决于高密度和低密度 EOS，前者决定了 PNS 的半径，后者影响其表面温度。基于目前对中微子事件率的评估，我们提出了一种新的分析方法，考虑观测中的统计误差，提取中微子平均能量的时间变化特性。 显示英文摘要

摘要： The late-time evolution of the neutrino event rate from supernovae is evaluated for Super-Kamiokande using simulated results of proto-neutron star (PNS) cooling. In the present work we extend the result of Suwa et al. (2019) [arXiv:1904.09996], which studied the dependence on the PNS mass, but focus on the impact of the nuclear equation of state (EOS). We find that the neutrino event rate depends on both the high-density and low-density EOS, where the former determines the radius of the PNS and the latter affects its surface temperature. Based on the present evaluation of the neutrino event rate we propose a new analysis method to extract the time variability of the neutrino average energy taking into account the statistical error in the observation.