Speaker
Description
The Electrical Dipole Momentum (EDM) of fundamental particles are in-
timately connected to the violation of time invariance T and the combined
symmetry of charge and parity CP. The MuEDM experiment aims to measure
the muon EDM with enhanced sensitivity using, for the first time worldwide,the frozen spin technique by studying the up–down asymmetry of positronsfrom muon decay. A polarized muon beam from the Paul Scherrer Institute(PSI) is injected into a uniform magnetic field region, where muons are stored and observed. A fast and selective trigger system is a critical component of the experiment, responsible for identifying storable muons and activating the pulse kicker within a latency below 105 ns. The MuEDM Muon Trigger Detector (MTD) is based on an anti-coincidence scheme between Gate and Aperture plastic scintillators, optimized for high efficiency, compactness, and strong background rejection. The trigger concept has been validated in test beams performed in 2022 and 2024, showing more than 97% agreement between measurements and simulations. In parallel, the data acquisition system has been developed around the CAEN FERS A5202 electronics, providing high channel density, precise timing, integrated SiPM biasing, and triggered readout capabilities. The DAQ has been fully integrated into the MIDAS framework, enabling run control, slow control, and data storage in multiple formats. The system was successfully operated during the December 2025 test beam, where stable acquisition and detector performance were demonstrated. Selected results from laboratory measurements and beam tests will be presented.
| Minioral | Yes |
|---|---|
| IEEE Member | No |
| Are you a student? | No |