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Wuppertal 2015 – scientific programme

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T: Fachverband Teilchenphysik

T 5: Experimentelle Methoden: Tracking und Flavour-Tagging

T 5.3: Talk

Monday, March 9, 2015, 14:30–14:45, L.09.21 (HS 13)

Track reconstruction for the Mu3e experiment — •Alexandr Kozlinskiy1, Niklaus Berger1, André Schöning2, and Moritz Kiehn2 for the Mu3e collaboration — 1Institut für Kernphysik, Mainz — 2Physikalisches Institut, Heidelberg

The Mu3e experiment is designed to search for the LFV decay µ+e+ee+. To reach the sensitivity of 10−16, the experiment will be performed at a high intensity beam line at the Paul-Scherrer Institute (Switzerland) providing more than 109 muons per second. Muons with a momentum of about 28 MeV/c are stopped on a target and their decay at rest is analyzed with an online filter farm. The high granularity of pixel detector consisting of four layers of thin sensors with a pixel size of 80×80 µm2 allows for a precise track reconstruction in the high occupancy environment of the Mu3e experiment reaching 100 tracks per readout frame of 50 ns. The implementation of a track reconstruction using a fast 3-dimensional multiple scattering fit based on hit triplets, where spatial uncertainties are ignored, is described and performance results based on the full Geant4 simulation of Mu3e geometry are presented.

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