论文标题

Super-Kamiokande和Macro从PSR B1509-58中高能量中微子的空间重合的总和

Combined significance of spatial coincidence of high energy neutrinos from PSR B1509-58 by Super-Kamiokande and MACRO

论文作者

Desai, Shantanu

论文摘要

在寻找高能量中微子的天体物理点来源时,超级kamiokande和宏中微子探测器都看到了同一来源的最大角度过量。 PSR B1509-58。我们通过{\ it}} Super-Kamiokande和Macro估计观察到的事件数量的概率是由于大气中微子背景而导致的偶然巧合。我们发现,这种概率约为0.4%,对应于2.6 $σ$的意义。我们还提出了一些其他测试,以确定这种过剩是否对应于天体物理信号还是仅是背景事件。

In their searches for astrophysical point sources of high energy neutrinos, both the Super-Kamiokande and MACRO neutrino detectors saw the largest angular excess from the same source, viz. PSR B1509-58. We estimate the probability for the observed number of events by {\it both} Super-Kamiokande and MACRO to be a chance coincidence due to atmospheric neutrino background. We find that this probability is about 0.4%, corresponding to 2.6$σ$ significance. We also propose some additional tests to ascertain if this excess corresponds to an astrophysical signal or is only a background event.

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