Speaker
Description
The MEG II experiment, based at the Paul Scherrer Institut in Switzerland, was designed to search for the Standard Model suppressed decay of a positive muon to a positron and a photon. The combination of the MEG II data with the full data set of the MEG experiment established the most stringent limit to date. The MEG II detector can be exploited to investigate the existence and to study the properties of the hypothetical particle X17, reported in the literature in electron-positrons pairs in the decay of the excited 8Be state. Recent MEG II result will be presented. The analysis perspective of the ten-fold larger sample collected so far, and the experiment sensitivity projection in the muon decay search will be provided. The improvements made to the detector which will allow a more stringent study of the X17 particle will be reported.
