核塌缩超新星中微子的多味多带观测
Multiflavor and multiband observations of neutrinos from core collapse supernovae
摘要：
有人提出，伽马射线暴与超新星之间的联系可能表现在很大一部分核心坍缩的超新星中，这些超新星具有温和的相对论性喷流，不会从恒星的包层中爆发出来。中微子将提供这些喷流存在的证据。在这封信中，我们计算了~100 GeV中微子在km ^3探测器中诱发级联的事件率。我们还计算了~10 GeV中微子的所有口味的事件率与冰立方的DeepCore低能扩展。增加的事件发生率大大提高了km ^3探测器搜索这些伽马射线暗爆发的能力。对于10 Mpc的核心坍缩超新星，我们在DeepCore中发现了约4个事件，在IceCube/KM 3 Net中发现了约6个中微子诱导的级联。在~10 GeV的观测主要是对在扼流喷流中中微子产生的π分量敏感，而~100 GeV则取决于K介子分量。最后，我们讨论的扩展正在进行的光学后续计划的冰立方和Ancillo，包括中微子的所有口味在~10 GeV和中微子诱导的级联在~100 GeV的能量。
英文摘要：
It has been proposed that the gamma ray burst - supernova connection may manifest itself in a significant fraction of core collapse supernovae possessing mildly relativistic jets that do not break out of the stellar envelope. Neutrinos would provide proof of the existence of these jets. In the present letter we calculate the event rate of ~100 GeV neutrino-induced cascades in km^3 detectors. We also calculate the event rate for ~10 GeV neutrinos of all flavors with the DeepCore low energy extension of IceCube. The added event rate significantly improves the ability of km^3 detectors to search for these gamma-ray dark bursts. For a core collapse supernova at 10 Mpc we find ~4 events expected in DeepCore and ~6 neutrino-induced cascades in IceCube/KM3Net. Observations at ~10 GeV are mostly sensitive to the pion component of the neutrino production in the choked jet, while the ~100 GeV depends on the kaon component. Finally we discuss extensions of the on-going optical follow-up programs by IceCube and Antares to include neutrinos of all flavors at ~10 GeV and neutrino-induced cascades at ~100 GeV energies.
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