Title:
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Intrinsic limits on resolutions in muon- and electron-neutrino charged-current events in the KM3NeT/ORCA detector
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Author:
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Ageron, M.; Aiello, G.; Ameli, F; André, Michel
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Other authors:
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Centre Tecnològic de Vilanova i la Geltrú; Universitat Politècnica de Catalunya. LAB - Laboratori d'Aplicacions Bioacústiques |
Abstract:
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Studying atmospheric neutrino oscillations in the few-GeV range with a multi-megaton detector promises to determine the neutrino mass hierarchy. This is the main science goal pursued by the future KM3NeT/ORCA water Cherenkov detector in the Mediterranean Sea. In this paper, the processes that limit the obtainable resolution in both energy and direction in charged-current neutrino events in the ORCA detector are investigated. These processes include the composition of the hadronic fragmentation products, the subsequent particle propagation and the photon-sampling fraction of the detector. GEANT simulations of neutrino interactions in seawater produced by GENIE are used to study the effects in the 1-20 GeV range. It is found that fluctuations in the hadronic cascade in conjunction with the variation of the inelasticity y are most detrimental to the resolutions. The effect of limited photon sampling in the detector is of significantly less importance. These results will therefore also be applicable to similar detectors/media, such as those in ice. |
Subject(s):
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-Àrees temàtiques de la UPC::Física::Astronomia i astrofísica -Neutrinos -Neutrino astrophysics -Astronomy--Observations -Neutrino Detectors and Telescopes (experiments) -Neutrins -Astrofísica |
Rights:
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Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type:
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Article - Submitted version Article |
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