Würzburg 2018 – scientific programme

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T: Fachverband Teilchenphysik

T 1: Neutrinoastronomie I

T 1.6: Talk

Monday, March 19, 2018, 17:15–17:30, Philo-HS1

Resolving muon flux components in KM3NeT/ARCA — •Tim Stüven for the ANTARES-KM3NeT-Erlangen collaboration — Friedrich-Alexander-Universität Erlangen-Nürnberg, ECAP

KM3NeT is an extensive research infrastructure in the Mediterranean deep sea which is currently under construction. KM3NeT/ARCA is the instrument part dedicated to high-energy neutrino astronomy at the KM3NeT Italy site off the coast of Sicily. The major goal of ARCA will be to study the origin of the high-energy astrophysical flux detected by IceCube.

The vast majority of events detected by ARCA will be down-going muons from the interactions of cosmic rays in the Earth's atmosphere. In addition, the conventional and prompt atmospheric neutrino flux, as well as the astrophysical flux, will generate incoming muons from all directions, with different energy dependencies. Studies aiming to e.g. identify the flavour composition of the astrophysical flux, or the magnitude of the prompt contribution, will need to simultaneously fit all these contributions. This talk will present the results of simulations of the muon flux expected at ARCA and discuss in which regimes of energy and direction different contributions -- especially those of the conventional and prompt atmospheric flux -- may be disentangled.