SMuK 2023 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
T: Fachverband Teilchenphysik
T 127: Exp. Methods III
T 127.5: Vortrag
Donnerstag, 23. März 2023, 16:50–17:05, WIL/C129
Track reconstruction for the Mu3e experiment — •Alexandr Kozlinskiy — Institut für Kernphysik, JGU Mainz, Germany
The Mu3e experiment is designed to search for the lepton flavor violating decay µ+ → e+e−e+. The aim of the experiment is to reach a branching ratio sensitivity of 10−16. The experiment is located at the Paul Scherrer Institute (Switzerland) and an existing beam line providing 108 muons per second will allow to reach a sensitivity of a few 10−15 in the first phase of the experiment. The muons with a momentum of about 28 MeV/c are stopped and decay at rest on a target. The decay products (positrons and electrons) with energies below 53 MeV are measured by a tracking detector consisting of two double layers of 50 µm thin high-voltage monolithic active pixel sensors. The high granularity of pixel detector with a pixel size of 80 × 80 µm together with the small material budget allows for a precise track reconstruction. The track reconstruction is optimized for low noise and high efficiency of tracking detector. This environment allows to efficiently remove incorrectly reconstructed tracks with minimal effect on tracks produced by real particles. This talk will present the details of the track reconstruction, the methods to reduce the number of fake tracks and suppress clones produced due to high hit densities.