Status of the Mu3e Experiment at PSI

Abstract

The Mu3e experiment aims to search for the lepton-flavour violating decay ${\mu }^{+}\to {\text{e}}^{+}{\text{e}}^{+}{\text{e}}^{-}$ with a sensitivity to one signal decay in $10^{16}$ muon decays at a muon stopping rate of $2\times 10^9\frac{\mu }{\text{s}}$. With currently available rates of $10^8\frac{\mu }{\text{s}}$, a sensitivity on the branching ratio of $10^{-15}$ is the aim of the first phase. This will allow for tests of new physics models with enhanced branching ratios for lepton-flavour violating processes with an unprecedented precision. The experiment must be operated at very high muon rates all the while suppressing the background of the decay ${\mu }^{+}\to {\text{e}}^{+}{\text{e}}^{-}{\text{e}}^{+}{\overline{\nu }}_{\mu }{\nu }_{\text{e}}$ and accidental electron-positron combinations. Therefore, a tracking detector made of thin pixel sensors with additional scintillating fibres and tiles for precise time measurement will be built. The development of the subdetectors is ongoing while detector construction is still in preparation.

5 pages, 6 figures, invited talk given at the FCCP 2015 workshop

References in corpus (3)

• Lepton Flavor and Number Conservation, and Physics Beyond the Standard Model
• The MEG detector for $\mu +\to e+\gamma$ decay search
• A Tracker for the Mu3e Experiment based on High-Voltage Monolithic Active Pixel Sensors

Cited by in corpus (13)

• Global Analysis of Leptophilic Z' Bosons
• Fully differential NLO predictions for the rare muon decay
• The Hierarchion, a Relaxion Addressing the Standard Model's Hierarchies
• Next-to-leading order prediction for the decay $\mu \to e(e^{+}{e}^{-})\nu \bar{\nu }$
• Surveying the SO(10) Model Landscape: The Left-Right Symmetric Case
• Probing Lepton Flavor Violating decays in MSSM with Non-Holomorphic Soft Terms
• Magnetic Moments of Leptons, Charged Lepton Flavor Violations and Dark Matter Phenomenology of a Minimal Radiative Dirac Neutrino Mass Model
• Constraints on 2l2q operators from $\mu -e$ flavour-changing meson decays
• Comprehensive Analysis of Charged Lepton Flavour Violation in the Symmetry Protected Type-I Seesaw
• Flavor physics in the multi-Higgs doublet models induced by the left-right symmetry
• WIMP dark matter in the parity solution to the strong CP problem
• Exotic Lepton-Flavor Violating Higgs Decays
• Higgs flavor phenomenology in a supersymmetric left-right model with parity