A muon-track reconstruction exploiting stochastic losses for large-scale Cherenkov detectors

Abstract IceCube is a cubic-kilometer Cherenkov telescope operating at the South Pole. The main goal of detection astrophysical neutrinos and identification their sources. High-energy muon are observed via secondary muons produced in charge current interactions with nuclei ice. Currently, best performing track directional reconstruction based on maximum likelihood method using arrival time distribution photons registered by experiment's photomultipliers. A known systematic shortcoming prevailing to assume continuous energy loss along track. However energies >1 TeV light yield from dominated stochastic showers. This paper discusses generalized ansatz where expected parametrized pattern. more realistic parametrization profile leads an improvement angular resolution up 20% for through-going tracks factor 2 starting over existing algorithms. Additionally, procedure estimate uncertainty has been improved be robust against numerical errors.