Charged Lepton Flavor Violation: Latest Results and Future Plans of the MEG Experiment

Charged lepton flavor violation processes are ideal probes for new physics due to the suppression of Standard Model backgrounds. Currently, the MEG collaboration is searching for μ+ → e+γ decay with unprecedented precision and has recently published a new analysis based on data collected in the years 2009–2011. This resulted in an upper limit on the branching ratio of 5.7 · 10−13 at 90% confidence level, which represents a four times more stringent limit than the previous world best limit set by MEG. The details behind this result, as well as the current status and future plans of theMEG experiment are reported here.