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T: Fachverband Teilchenphysik

T 94: Detektorsysteme VII

T 94.4: Vortrag

Donnerstag, 28. März 2019, 16:45–17:00, H10

Timing performance of the Mu3e tile detector prototype — •Tiancheng Zhong, Yonathan Munwes, Konrad Briggl, Hannah Klingenmeyer, Huangshan Chen, Hans-Christian Schultz-Coulon, and Wei Shen — Kirchhoff Institute for Physics, University of Heidelberg

The Mu3e experiment is designed to search for the charged Lepton Flavour Violation (cLFV) decay µ⁺ → e⁺e⁺e⁻ with a sensitivity of 10⁻¹⁶. The observation of this decay would be a significant signal for new physics beyond the Standard Model (SM). To suppress both accidental and physics background in the experiment, a precise measurement of the vertex position, the decay time and the particle momenta is required. The tile timing detector aims at a timing resolution of better than 100ps, and is based on scintillation tiles, SiPMs and a readout ASIC.
A prototype with totally 96 channels was built at the Kirchhoff Institute for Physics. It was tested by exposed to the DESY electron test beam in Hamburg in June 2018. All three submodules with separated ASICs were successfully read out by the same data acquisition (DAQ) system using separated ASICs. The single channel and submodule resolution was measured to be better than 40ps and 60ps, respectively.