Technical design of the phase I Mu3e experiment


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Date

2021-10-21

Publication Type

Journal Article

ETH Bibliography

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.

Publication status

published

Editor

Book title

Volume

1014

Pages / Article No.

165679

Publisher

Elsevier

Event

Edition / version

Methods

Software

Geographic location

Date collected

Date created

Subject

Lepton flavour violation; Muon decays; Monolithic pixel detector; Scintillating fibres; Scintillating tiles

Organisational unit

03904 - Wallny, Rainer / Wallny, Rainer check_circle

Notes

Funding

172519 - Search for the Lepton Flavour Violating Decay "Mu --> e e e" (Mu3e) (SNF)

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