Münster 2017 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 65: Experimentelle Techniken der Astroteilchenphysik 4

T 65.2: Vortrag

Dienstag, 28. März 2017, 17:00–17:15, S 055

Corrections to Muon Cross Sections for IceCube Simulation — •Jan Soedingrekso for the IceCube collaboration — TU Dortmund, Dortmund, Germany

An important analysis step for neutrino telescopes like IceCube is the energy reconstruction of the detected charged leptons based on Monte Carlo simulations. The energy of electrons and taus can be estimated with high precision, because they are contained events. High energy muons do usually not lose their entire energy within the detector volume, so the energy reconstruction is more complex and is estimated via the energy loss per distance. To reduce the systematic uncertainties of the energy reconstruction for detected muon events, the simulation chain has to be improved. For the propagation of charged leptons carried out by the simulation tool PROPOSAL the interactions with matter have to be known as accurate as possible. In the relevant energy range for astrophysical neutrinos the energy losses originate mainly from pair production, bremsstrahlung and photonuclear interactions. In this talk the current pair production cross section with systematic studies on the effective description of the nuclear interaction is presented.