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Measurement of the ν[subscript μ] Energy Spectrum with IceCube-79: IceCube Collaboration

Author(s)
Arguelles Delgado, Carlos A; Axani, Spencer Nicholas
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Abstract
IceCube is a neutrino observatory deployed in the glacial ice at the geographic South Pole. The ν[subscript μ] energy unfolding described in this paper is based on data taken with IceCube in its 79-string configuration. A sample of muon neutrino charged-current interactions with a purity of 99.5% was selected by means of a multivariate classification process based on machine learning. The subsequent unfolding was performed using the software Truee . The resulting spectrum covers an E[subscript ν]-range of more than four orders of magnitude from 125 GeV to 3.2 PeV. Compared to the Honda atmospheric neutrino flux model, the energy spectrum shows an excess of more than 1.9σ in four adjacent bins for neutrino energies E[subscript ν]≥177.8TeV . The obtained spectrum is fully compatible with previous measurements of the atmospheric neutrino flux and recent IceCube measurements of a flux of high-energy astrophysical neutrinos.
Date issued
2017-10
URI
http://hdl.handle.net/1721.1/117356
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
The European Physical Journal C
Publisher
Springer/Società Italiana di Fisica
Citation
Aartsen, M. G., et al. “Measurement of the ν[subscript μ] Energy Spectrum with IceCube-79: IceCube Collaboration.” The European Physical Journal C, vol. 77, no. 10, Oct. 2017. © 2017 The Authors
Version: Final published version
ISSN
1434-6044
1434-6052

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