https://argonne.zoomgov.com/j/1613889175?pwd=NkgweC9idHRIeW1kbzlDeVl6dkxCdz09
Abstract:
The MEG II experiment aims to improve the sensitivity to the branching ratio of the charged lepton flavour violating decay μ+ → e+γ down to 6 ×10-14. This marks an improvement with respect to the current best upper limit set by the MEG experiment by an order of magnitude. At this moment, the MEG II experiment is in its engineering run and will likely be able to take physics data towards the end of the year. I will present positron beam based detector characterisation methods developed in the context of this upgrade as well as simulations for a future upgrade of an auxiliary detector by a new prototype for future high precision calorimetry based on a large LYSO crystal coupled to SiPMs. Further, I will elaborate on the commissioning of the detector in general and in particular on two subsystems to which I significantly contributed, namely the cosmic ray counter for drift chamber calibrations and the temperature control of the detector hut. Finally, I will offer an outlook to the future of the MEG II experiment and present two exotic physics cases which can be investigated with the MEG II apparatus.