Arndt, K;
Augustin, H;
Baesso, P;
Berger, N;
Berg, F;
Betancourt, C;
Bortoletto, D;
... Wasili, A; + view all
(2021)
Technical design of the phase I Mu3e experiment.
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
, 1014
, Article 165679. 10.1016/j.nima.2021.165679.
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Abstract
The Mu3e experiment aims to find or exclude the lepton flavour violating decay μ→eee at branching fractions above 10−16. A first phase of the experiment using an existing beamline at the Paul Scherrer Institute (PSI) is designed to reach a single event sensitivity of 2⋅10−15. We present an overview of all aspects of the technical design and expected performance of the phase I Mu3e detector. The high rate of up to 108 muon decays per second and the low momenta of the decay electrons and positrons pose a unique set of challenges, which we tackle using an ultra thin tracking detector based on high-voltage monolithic active pixel sensors combined with scintillating fibres and tiles for precise timing measurements.
| Type: | Article |
|---|---|
| Title: | Technical design of the phase I Mu3e experiment |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.nima.2021.165679 |
| Publisher version: | https://doi.org/10.1016/j.nima.2021.165679 |
| Language: | English |
| Additional information: | © 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| Keywords: | Lepton flavour violation, Muon decays, Monolithic pixel detector, Scintillating fibres, Scintillating tiles |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10134201 |
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