Reconstruction of track-type neutrino events in KM3NeT/ORCA

• Published in: Proceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015)
• Main Author: Galatà, Salvatore
• Other Authors: AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), KM3NeT
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2015
• Subjects: muon; topology; resolution; efficiency; performance; sensitivity; charged current; cosmic radiation; KM3NeT; neutrino: mass: hierarchy; neutrino: energy; neutrino: atmosphere; neutrino: detector; neutrino: interaction; neutrino: oscillation; [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]; Orca
• Online Access: https://hal.archives-ouvertes.fr/hal-01554294; https://doi.org/10.22323/1.236.1102

International audience KM3NeT is a next-generation research infrastructure being installed in the Mediterranean Sea. Within this infrastructure, KM3NeT/ORCA is a future neutrino detector optimised for the mea- surement of the neutrino mass hierarchy (NMH) by investigating atmospheric neutrino oscillation in matter in the energy range above 5 GeV. Charged-current muon-neutrino events significantly contribute to the NHM sensitivity [ 1 ]. In these events, the generated muon induces a track-like topology. The precise reconstruction of such events is an indispensable prerequisite for the NMH measurement. The algorithm described here reconstructs the neutrino direction, the neutrino en- ergy, the position of the interaction vertex and estimates the inelasticity of the neutrino interaction. The performances achieved, in terms of resolutions and efficiency, are presented