Technical design of the phase I Mu3e experiment
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Date
2021-10-21
Publication Type
Journal Article
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yes
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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 10(8) 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.
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published
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Volume
1014
Pages / Article No.
165679
Publisher
Elsevier
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Subject
Lepton flavour violation; Muon decays; Monolithic pixel detector; Scintillating fibres; Scintillating tiles
Organisational unit
03904 - Wallny, Rainer / Wallny, Rainer
Notes
Funding
172519 - Search for the Lepton Flavour Violating Decay "Mu --> e e e" (Mu3e) (SNF)