PT Journal AU ANTARES Collaboration (Aguilar, JAea Bigongiari, C Dornic, D Emanuele, U Gomez-Gonzalez, JP Hernandez-Rey, JJ Mangano, S Salesa, F Toscano, S Yepes, H Zornoza, JD Zuñiga, J TI A fast algorithm for muon track reconstruction and its application to the ANTARES neutrino telescope SO Astroparticle Physics JI Astropart Phys. PY 2011 BP 652 EP 662 VL 34 IS 9 DI 10.1016/j.astropartphys.2011.01.003 LA English DE Neutrino telescope; Track reconstruction AB An algorithm is presented, that provides a fast and robust reconstruction of neutrino induced upward-going muons and a discrimination of these events from downward-going atmospheric muon background in data collected by the ANTARES neutrino telescope. The algorithm consists of a hit merging and hit selection procedure followed by fitting steps for a track hypothesis and a point-like light source. It is particularly well-suited for real time applications such as online monitoring and fast triggering of optical follow-up observations for multi-messenger studies. The performance of the algorithm is evaluated with Monte Carlo simulations and various distributions are compared with that obtained in ANTARES data. ER