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Measurement of the νμ energy spectrum with IceCube-79: IceCube Collaboration
Journal article   Open access

Measurement of the νμ energy spectrum with IceCube-79: IceCube Collaboration

M. G. Aartsen, M. Ackermann, J. Adams, J. A. Aguilar, M. Ahlers, M. Ahrens, I. Al Samarai, D. Altmann, K. Andeen, T. Anderson, …
The European physical journal. C, Particles and fields, v 77(10)
2017
url
https://doi.org/10.1140/epjc/s10052-017-5261-3View
Published, Version of Record (VoR)CC BY V4.0 Open

Abstract

Astrophysics and Cosmology Elementary Particles Hadrons Heavy Ions Measurement Science and Instrumentation Nuclear Energy Physics and Astronomy Quantum Field Theories Regular Article - Experimental Physics Astronomy Nuclear Physics Physics Quantum Field Theory String Theory
IceCube is a neutrino observatory deployed in the glacial ice at the geographic South Pole. The ν 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 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 1.9 σ in four adjacent bins for neutrino energies E ν ≥ 177.8 TeV . 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.

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Physics, Particles & Fields
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