Sensitivity of the IceCube Detector to Astrophysical Sources of High Energy Muon Neutrinos

Details 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

2003-05-12

arxiv.org/abs/astro-ph/0305196v1

Astropart.Phys.20:507-532,2004

Astronomy and Astrophysics

Astrophysics

33 pages, 13 figures, 6 tables

Scientific paper

10.1016/j.astropartphys.2003.09.

We present the 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 sources such as active galaxies and gamma-ray bursts. 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 emissions, including an assessment of the sensitivity to neutrinos detected in coincidence with gamma-ray burst observations. After three years of datataking, IceCube will have been able to detect a point source flux of E^2*dN/dE = 7*10^-9 cm^-2s^-1GeV at a 5-sigma significance, or, in the absence of a signal, place a 90% c.l. limit at a level E^2*dN/dE = 2*10^-9 cm^-2s^-1GeV. A diffuse E-2 flux would be detectable at a minimum strength of E^2*dN/dE = 1*10^-8 cm^-2s^-1sr^-1GeV. A gamma-ray burst model following the formulation of Waxman and Bahcall would result in a 5-sigma effect after the observation of 200 bursts in coincidence with satellite observations of the gamma-rays.

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