Measurement of the atmospheric ν_μ energy spectrum from 100 GeV to 200 TeV with the ANTARES telescope

2013/08/07 by The ANTARES Collaboration, S. Adrián-Martínez, A. Albert +149 · 2 citations
Physics and Astronomy · #astro-ph.HE #astro-ph.IM

paper · pdf · doi:10.1140/epjc/s10052-013-2606-4

published as Eur. Phys. J C 73:2606 (2013) · preprint submitted to EPJ C

arxiv created 2013/08/07 · arxiv updated 2016/02/10

Abstract

Atmospheric neutrinos are produced during cascades initiated by the interaction of primary cosmic rays with air nuclei. In this paper, a measurement of the atmospheric ν_μ+ ν_μenergy spectrum in the energy range 0.1 - 200 TeV is presented, using data collected by the ANTARES underwater neutrino telescope from 2008 to 2011. Overall, the measured flux is ~25% higher than predicted by the conventional neutrino flux, and compatible with the measurements reported in ice. The flux is compatible with a single power-law dependence with spectral index γ_meas=3.58± 0.12. With the present statistics the contribution of prompt neutrinos cannot be established.

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