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arXiv · 1912.08656

Status of charged lepton flavour violation search with MEG II experiment

Manuel Meucci
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Abstract

The MEG II experiment searches for the Charged Lepton Flavour Violating (CLFV) decay $\mu\rightarrow e \gamma$. This decay is foreseen by the Standard Model (SM) of Particle Physics at non observable rates through neutrino oscillation. Observing it would be a clear signal of new physics (e.g. SUSY-GUT). After publishing the current upper limit to the Branching Ratio (BR) of this decay in 2016, BR($\mu^+\rightarrow e^+ \gamma)<4.2\times10^{-13}$, the MEG experiment started the upgrade of its detector in order to increase the sensitivity by a factor 10, starting the MEG II phase. The aim of this work is to report a description of the new detectors design and performances, to present the results obtained in the 2018 pre-engineering run with all the new MEG II detectors installed, and to report on the current status of the experiment and its future prospects.

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Manuel Meucci. 2019-12-18. Status of charged lepton flavour violation search with MEG II experiment. https://arxiv.org/abs/1912.08656

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