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T: Fachverband Teilchenphysik

T 109: Neutrinoastronomie 4

T 109.3: Talk

Thursday, March 27, 2014, 17:15–17:30, P13

The ANflux tool for atmospheric lepton fluxes — •Sebastian Schöneberg and Julia Tjus for the IceCube collaboration — Ruhr-Universität Bochum

Muons and neutrinos created by CR interactions inside the Earth's atmosphere constitute the main background for neutrino observatories like IceCube or ANTARES. Monte Carlo simulations provide the most complete treatment of the flux of atmospheric leptons, but towards higher energies they suffer from a lack of statistics. To compensate this lack without further increasing the requirements in computation time, data from MC simulations can be combined with fluxes obtained with an analytical solution of the cascade equation.

We present the ANflux tool which is desinged to handle MC data from previous simulations and combine those fluxes with the cascade euqation solution in a smooth and consistent fashion. ANflux contains the most recent conventional fluxes of atmospheric muons, muon neutrinos and electron neutrinos obtained with two different interaction models (SIBYLL 2.1 and QGSJET-II) . In addition to the conventional fluxes the prompt flux calculated with QGSJET-01c is included as well. ANflux is designed to be easily expandable with simulation data obtained with new primary CR and interaction models as they become availbe.