Measurement of the atmospheric muon depth intensity relation with the NEMO Phase-2 tower

Abstract

The results of the analysis of the data collected with the NEMO Phase-2 tower, deployed at 3500 m depth about 80 km off-shore Capo Passero (Italy), are presented. Cherenkov photons detected with the photomultipliers tubes were used to reconstruct the tracks of atmospheric muons. Their zenith-angle distribution was measured and the results compared with Monte Carlo simulations. An evaluation of the systematic effects due to uncertainties on environmental and detector parameters is also included. The associated depth intensity relation was evaluated and compared with previous measurements and theoretical predictions. With the present analysis, the muon depth intensity relation has been measured up to 13 km of water equivalent.

submitted to Astroparticle Physics

References in corpus (3)

• Atmospheric MUons from PArametric formulas: a fast GEnerator for neutrino telescopes (MUPAGE)
• Deep seawater inherent optical properties in the Southern Ionian Sea
• Sensitivity of an underwater Cerenkov km3 telescope to TeV neutrinos from Galactic Microquasars

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• Neutrino telescopes and high-energy cosmic neutrinos
• On the Accuracy of Underground Muon Intensity Calculations
• Long term monitoring of the optical background in the Capo Passero deep-sea site with the NEMO tower prototype
• High-energy neutrino astronomy with KM3NeT-ARCA