TY - JOUR AU - KM3NeT Collaboration (Adrian-Martinez, S. et al AU - Barrios-Marti, J. AU - Calvo, D. AU - Hernandez-Rey, J. J. AU - Illuminati, G. AU - Lotze, M. AU - Olcina, I. AU - Real, D. AU - Sanchez Garcia, A. AU - Tönnis, C. AU - Zornoza, J. D. AU - Zuñiga, J. PY - 2017 DA - 2017// TI - Intrinsic limits on resolutions in muon- and electron-neutrino charged-current events in the KM3NeT/ORCA detector T2 - J. High Energy Phys. JO - Journal of High Energy Physics SP - 008 EP - 39pp VL - 05 IS - 5 PB - Springer KW - Neutrino Detectors and Telescopes (experiments) AB - Studying atmospheric neutrino oscillations in the few-GeV range with a multimegaton 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. SN - 1029-8479 UR - http://arxiv.org/abs/1612.05621 UR - https://doi.org/10.1007/JHEP05(2017)008 DO - 10.1007/JHEP05(2017)008 LA - English N1 - WOS:000401072300004 ID - KM3NeTCollaborationAdrian-Martinez_etal2017 ER -