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

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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 νμ + ν̄μ energy 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 γmeas=3.58±0.12. With the present statistics the contribution of prompt neutrinos cannot be established. © 2013 The Author(s).

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Adrián-Martínez, S., Albert, A., Al Samarai, I., André, M., Anghinolfi, M., Anton, G., … Zúñiga, J. (2013). Measurement of the atmospheric νμ energy spectrum from 100 GeV to 200 TeV with the ANTARES telescope. European Physical Journal C, 73(10), 1–12. https://doi.org/10.1140/epjc/s10052-013-2606-4

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