Our team recently participated in the PSI test beam in December 2025 to evaluate the performance of the upgraded muon trigger detector developed for the muEDM experiment. This represents our third beam test at PSI for the muEDM project, where we demonstrated an enhanced design specifically crafted for operation in high magnetic fields and vacuum environments.
A sincere recognition is extended to Guan Ming, Xingyun, Tianqi, and Yonghao for their diligent efforts and commitment in developing this state-of-the-art, highly dependable muon trigger detector and the associated Data Acquisition (DAQ) readout chain. Their contributions have played a crucial role in enhancing the detector’s capabilities and securing its success under demanding experimental conditions. A comprehensive analysis of all collected data will be conducted in the forthcoming months to assess the detector’s performance.
TDLI Muon Group Photo in front of the Muon Trigger Detector 
An overview of the muEDM experimental setup 
Yonghao and Xingyun performing the cabling of the detector 
Xingyun applying Kapton foils to protect the electronics system