Sensitivity of the IceCube detector to astrophysical sources of high energy muon neutrinos
Sensitivity of the IceCube detector to astrophysical sources of high energy muon neutrinos
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DOI：
10.1016/j.astropartphys.2003.09.003
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发表时间：
2004-02-01
影响因子：
3.5
通讯作者：
Yoshida, S
中科院分区：
文献类型：
--
作者：
Ahrens, J;Bahcall, JN;Yoshida, S
我们目前的Monte Carlo研究结果的灵敏度计划IceCube探测器预测通量的μ中微子TeV到PeV的能量。一个完整的模拟的探测器和数据分析是用来研究探测器的能力，以寻找μ介子中微子的潜在来源，如活跃的星系和伽玛射线暴（GRB）。我们研究了探测器的有效面积和角分辨率作为μ子能量和入射角的函数。我们提出了详细的计算的探测器的灵敏度扩散和点状中微子通量，包括评估的灵敏度与伽玛射线暴观测一致的中微子检测。经过三年的数据采集，lceCube将能够在5 sigma显著性下探测到E-v（2）x dN（v）/dE（v）= 7 x 10（-9）cm（-2）s（-1）GeV的点源通量，或者在没有信号的情况下，将90% c.l.极限为E-v（2）x dN（v）/dE（v）= 2 x 10（-9）cm（-2）s（-1）GeV。在最小强度E-v（2）x dN（v）/dE（v）= 10（-8）cm（-2）s（-1）sr（-1）GeV时，可以探测到扩散的E-2通量。根据Waxman和Bahcall的公式建立的GRB模型，在观测到200个与卫星观测的伽马射线相一致的爆发后，将产生5 σ效应。(C)2003 Elsevier B. V.保留所有权利。
We present results of a Monte Carlo study of the sensitivity of the planned IceCube detector to predicted fluxes of muon neutrinos at TeV to PeV energies. A complete simulation of the detector and data analysis is used to study the detector's capability to search for muon neutrinos from potential sources such as active galaxies and gamma-ray bursts (GRBs). We study the effective area and the angular resolution of the detector as a function of muon energy and angle of incidence. We present detailed calculations of the sensitivity of the detector to both diffuse and pointlike neutrino fluxes, including an assessment of the sensitivity to neutrinos detected in coincidence with GRB observations. After three years of data taking, lceCube will be able to detect a point-source flux of E-v(2) x dN(v)/dE(v) = 7 x 10(-9) cm(-2) s(-1) GeV at a 5sigma significance, or, in the absence of a signal, place a 90% c.l. limit at a level of E-v(2) x dN(v)/dE(v) = 2 x 10(-9) cm(-2) s(-1) GeV. A diffuse E-2 flux would be detectable at a minimum strength of E-v(2) x dN(v)/dE(v) = 10(-8) cm(-2) s(-1) sr(-1) GeV. A GRB model following the formulation of Waxman and Bahcall would result in a 5sigma effect after the observation of 200 bursts in coincidence with satellite observations of the gamma rays. (C) 2003 Elsevier B.V. All rights reserved.