Constraints on the extremely-high energy cosmic neutrino flux with the IceCube 2008-2009 data

R. Abbasi et al. (IceCube Collaboration)
Phys. Rev. D 83, 092003 – Published 24 May 2011; Erratum Phys. Rev. D 84, 079902 (2011)

Abstract

We report on a search for extremely-high energy neutrinos with energies greater than 106GeV using the data taken with the IceCube detector at the South Pole. The data was collected between April 2008 and May 2009 with the half-completed IceCube array. The absence of signal candidate events in the sample of 333.5 days of live time significantly improves model-independent limits from previous searches and allows to place a limit on the diffuse flux of cosmic neutrinos with an E2 spectrum in the energy range 2.0×1066.3×109GeV to a level of E2ϕ3.6×108GeVcm2sec1sr1.

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  • Received 22 March 2011

DOI:https://doi.org/10.1103/PhysRevD.83.092003

© 2011 American Physical Society

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Vol. 83, Iss. 9 — 1 May 2011

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