Technical design of the phase I Mu3e experiment

Abstract

The Mu3e experiment aims to find or exclude the lepton flavour violating decay $\mu \to eee$ 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 $2\cdot 10^{-15}$. 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.

arXiv comment117 pages. Minor corrections to the author list. Replaced with published version. Editor: Frank Meier Aeschbacher

References in corpus (24)

• The T2K Experiment
• Muon Decay and Physics Beyond the Standard Model
• MEG Upgrade Proposal
• General Broken Lines as advanced track fitting method
• Radiation Hardness Tests of SiPMs for the JLab Hall D Barrel Calorimeter
• Charged particle detection performances of CMOS pixel sensors produced in a 0.18 um process with a high resistivity epitaxial layer
• Fast alignment of a complex tracking detector using advanced track models
• Alignment of the CMS tracker with LHC and cosmic ray data
• Flavor violating leptonic decays of $\tau$ and $\mu$ leptons in the Standard Model with massive neutrinos
• Fully differential NLO predictions for the rare muon decay
• Radiative $\mu$ and $\tau$ leptonic decays at NLO
• Studies of irradiated AMS H35 CMOS detectors for the ATLAS tracker upgrade
• $\tau \to \mu \mu \mu$ at a rate of one out of $10^{14}$ tau decays?
• A New Three-Dimensional Track Fit with Multiple Scattering
• Optimisation of CMOS pixel sensors for high performance vertexing and tracking
• Next-to-leading order prediction for the decay $\mu \to e(e^{+}{e}^{-})\nu \bar{\nu }$
• Parametrization of the Cosmic Muon Flux for the Generator CMSCGEN
• Rare Muon Decay ${\mu }^{+}\to e^{+}{e}^{-}{e}^{+}{\nu }_e\overline{{\nu }_{\mu }}$
• MuPix7 - A fast monolithic HV-CMOS pixel chip for Mu3e
• Performance of the large scale HV-CMOS pixel sensor MuPix8
• Irradiation study of a fully monolithic HV-CMOS pixel sensor design in AMS 180 nm
• Multiple Coulomb Scattering in Thin Silicon
• Efficiency and timing performance of the MuPix7 high-voltage monolithic active pixel sensor
• Mechanics, readout and cooling systems of the Mu3e experiment

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