Bonn 2020 – scientific programme
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T: Fachverband Teilchenphysik
T 12: Detector systems I
T 12.1: Group Report
Monday, March 30, 2020, 16:30–16:50, H-HS XIII
Status of the Mu3e experiment — •Sebastian Dittmeier for the Mu3e collaboration — Physikalisches Institut, Universität Heidelberg
The Mu3e experiment will search for the charged lepton flavour violating decay µ+→ e+e−e+ with a targeted branching ratio sensitivity of 10−15 (10−16) in Phase I (II). The sensitivity goal drives the experimental design: To distinguish the neutrino-less signal decay from background processes, excellent momentum, vertex and time resolutions of the detector system are required. An ultra-thin silicon pixel tracking detector will be constructed, complemented by a scintillating fibre and a scintillating tile detector which add precise time information to the tracks. To conduct the experiment within a reasonable time, the detector will have to cope with electrons and positrons originating from muon decays at rates up to 108 (109) per second. The current status of the design and construction of the Mu3e experiment is presented. Plans for commissioning of first detector module prototypes are outlined.