标题： 观测超新星中微子光变曲线与超级神冈探测器：II. 核物态方程的影响 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： 超新星中微子事件率的晚期演化情况通过原中子星（PNS）冷却的模拟结果对超级神冈探测器进行了评估。 在本工作中，我们扩展了Suwa等人（2019）[arXiv:1904.09996]的结果，该研究探讨了PNS质量的影响，但重点在于核状态方程（EOS）的影响。 我们发现中微子事件率同时依赖于高密度和低密度状态方程，前者决定了PNS的半径，后者影响其表面温度。 基于对中微子事件率的当前评估，我们提出了一种新的分析方法，以考虑观测中的统计误差，提取中微子平均能量的时间变化性。 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.