CALICE scintillator-based calorimeter prototypes: highlights of developments and beamtest campaigns

Two CALICE high-granularity calorimetry prototypes based on the plastic scintillator option have been successfully developed to address system integration challenges and precision measurements of particle showers. The ScW-ECAL prototype features around 6,720 readout channels and 32 longitudinal layers of scintillator strips and copper-tungsten plates. The CEPC-AHCAL prototype has a total of 12,960 readout channels and 40 longitudinal layers with scintillator tiles and iron plates. Both prototypes are based on the silicon photomultiplier (SiPM) readout and have compact front-end electronics fully embedded in sensitive layers. Successful beam tests were performed at CERN PS and SPS beamlines during 2022-2023 with beam particles ranging from 1 to 350 GeV. This contribution on behalf of the CALICE collaboration and CEPC-calorimetry working group will present prototype developments, highlights of beam tests, and ongoing performance studies of particle showers.