Intrinsic limits on resolutions in muon- and electron-neutrino charged-current events in the KM3NeT/ORCA detector Adrián Martínez, S. Díaz García, Antonio Francisco Navas Concha, Sergio KM3NeT Collaboration, / Neutrino Detectors and Telescopes (experiments) 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. 2024-10-15T08:01:00Z 2024-10-15T08:01:00Z 2017-05-02 journal article The KM3NeT collaboration., Adrián-Martínez, S., Ageron, M. et al. Intrinsic limits on resolutions in muon- and electron-neutrino charged-current events in the KM3NeT/ORCA detector. J. High Energ. Phys. 2017, 8 (2017). https://doi.org/10.1007/JHEP05(2017)008 https://hdl.handle.net/10481/95945 10.1007/JHEP05(2017)008 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional Springer Nature