Münster 2017 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 34: Neutrinophysik 3
T 34.4: Vortrag
Dienstag, 28. März 2017, 11:55–12:10, VSH 118
Investigation of the target of the COMET muon to electron conversion-experiment — •Andreas Jansen, Dominik Stöckinger, and Kai Zuber — TU Dresden, Institut für Kern- und Teilchenphysik, Germany
COMET is an experiment searching for coherent neutrinoless transition of muons to electrons in the surrounding of atomic nuclei. Since this process violates charged lepton flavor conservation it is highly suppressed in the Standard Model and therefore it provides an excellent channel to search for new physics. With an expected single-event sensitivity of 3 · 10−15, Phase-I of COMET aims to improve the current world’s best limit by a factor of 100.
The number of stopped muons is attained by measuring characteristic X-rays from muonic atoms. To maximize the number of stopped muons the target consists of multiple thin aluminum disks. In order to account for this complex structure, a replication of the original setup was designed to measure the detection efficiency and solid angle dependencies in regard to each single disk.
The talk will present the design of the test setup built at TU-Dresden, the underlying Monte-Carlo simulations as well as the acquired data and the performed analysis.