Speaker
Yazhou Niu
(USTC)
Description
A highly granular electromagnetic calorimeter prototype has been designed with particle flow algorithms within the CALICE collaboration for precision measurements of Higgs and electroweak physics at future lepton collider experiments, including the Circular Electron Positron Collider (CEPC). Scintillator strips and silicon photomultipliers (SiPMs) are instrumented as sensitive layers and tungsten-copper alloy plates as absorber. Scintillator strips are individually wrapped with ESR foil and directly coupled with SiPMs. A 32-layer sampling calorimeter prototype (with over 6700 channels in total) has been constructed with scintillator strips interleaved with tungsten-copper absorber plates. Long-term cosmic-ray tests were performed, followed by a beam test in 2020 at the IHEP BEPC-II E3-beamline for quantitative studies on the key performance. This talk will cover key aspects in the prototype development, the latest status of commissioning, selected results of cosmic ray and beam tests.
Primary author
Yazhou Niu
(USTC)
Co-authors
Haijun Yang
(Shanghai Jiao Tong University)
Dr
Jianbei Liu
(University of Science and Technology of China)
Dr
Yong Liu
(Institute of High Energy Physics)
