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arXiv 1902.11287astro-ph.HEhep-ph
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通过来自地球出现的Taus的空气簇射的Cherenkov信号探测宇宙Tau中微子

Cosmic tau neutrino detection via Cherenkov signals from air showers from Earth-emerging taus

Mary Hall Reno, John F. Krizmanic, Tonia M. Venters

摘要:

我们对地球中τ中微子和反中微子相互作用产生的地球出射$τ$ -轻子的通量和能谱进行了新的详细计算。地球分层模型用于描述地球的变密度剖面。不同的假设,关于中微子带电和中性电流截面以及$τ$ -轻子能量损失模型被用来量化的系统不确定性,从这些结果。然后,基线模拟用于产生光学切伦科夫信号从向上移动的广泛的空气簇射产生的$τ$ -轻子衰变在大气中,适用于一系列的天基仪器。我们使用这个模拟来确定中微子的灵敏度为$E_ν>$ 10 PeV的天基实验的性能类似的探测器的极端多信使天体物理学(POEMMA)目前正在研究的任务。

英文摘要:

We perform a new, detailed calculation of the flux and energy spectrum of Earth-emerging $τ$-leptons generated from the interactions of tau neutrinos and antineutrinos in the Earth. A layered model of the Earth is used to describe the variable density profile of the Earth. Different assumptions regarding the neutrino charged- and neutral-current cross sections as well as the $τ$-lepton energy loss models are used to quantify the systematic uncertainty from these on the results. A baseline simulation is then used to generate the optical Cherenkov signal from upward-moving extensive air showers generated by the $τ$-lepton decay in the atmosphere, applicable to a range of space-based instruments. We use this simulation to determine the neutrino sensitivity for $E_ν>$ 10 PeV for a space-based experiment with performance similar to that for the Probe of Extreme MultiMessenger Astrophysics (POEMMA) mission currently under study.

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。

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