Speaker
Description
A highly granular electromagnetic calorimeter has been designed and optimised 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 prototype with 32 sampling layers and over 6700 channels (around $600\times600\times400~\mathrm{mm^3}$ in dimensions), has been constructed and commissioned in 2020. Long-term cosmic-ray tests were performed 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 tests, as well as preparations for the future DESY beam tests.
| Funding information | This study was supported by National Key Programme for S&T Research and Development (Grant NO.: 2016YFA0400400), from the Ministry of Science and Technology of China. |
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| TIPP2020 abstract resubmission? | Yes, this would have been presented at TIPP2020. |
