## The Mu3e experiment

F. Wauters on behalf of the Mu3e collaboration

SciPost Phys. Proc. 5, 020 (2021) · published 6 September 2021

### Proceedings event

Review of Particle Physics at PSI

### Abstract

The \emph{Mu3e} experiment aims for a single event sensitivity of 2$\cdot$10$^{-15}$ on the charged lepton flavour violating $\mu^+\rightarrow e^+ e^+ e^-$ decay. The experimental apparatus, a light-weight tracker based on custom High-Voltage Monolithic Active Pixel Sensors placed in a 1~T magnetic field is currently under construction at the Paul Scherrer Institute, where it will use the full intense 10$^8$ $\mu^+$/s beam available. A final sensitivity of 1$\cdot$10$^{-16}$ is envisioned for a phase II experiment, driving the development of a new high-intensity DC muon source.

### Author / Affiliation: mappings to Contributors and Organizations

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