The 2022 International Workshop on the High Energy Circular Electron Positron Collider

Driven by the physics program of precise measurement of properties of the Higgs boson, the W and Z bosons, as well as the top quark, future lepton colliders require unprecedented jet energy resolution on their calorimetry systems. Based on the particle- ow paradigm, a novel highly gran- ular crystal electromagnetic calorimeter (ECAL) with excellent three-dimensional spatial resolu- tion as...

A highly granular electromagnetic calorimeter has been designed within the CALICE collabora- tion for precision measurements of Higgs and electroweak physics at future lepton collider ex- periments, 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....

Based on the particle- ow paradigm, a novel hadronic calorimeter (HCAL) with high granularity is proposed to address major challenges from precision measurements of jets at future lepton collider experiments, such as the Circular Electron Positron Collider (CEPC). Compared with the baseline designs, a new design scheme based on the glass scintillator (GS-HCAL) aims for further signif- icant...

We discuss the time spectra of showers from photons, muons, and charged pions, simulated in the CEPC electromagnetic calorimeter (ECAL). We present an algorithm for timing reconstruc- tion in highly granular calorimeters (HGC). Assuming the intrinsic hit time resolution measured by the CMS collaboration is accessible, the particle Time-of-Flight (ToF) can be measured with a resolution of 5 ∼...

The future Circular Electron-Positron Collider (CEPC) is a large-scale experimental facility, which aims to accurately measure the Higgs boson, electroweak physics and avor physics. For the detec- tor system in CEPC, a highly granular crystal electromagnetic calorimeter is proposed to achieve an EM energy resolution of less than 3%. It is a homogenous structure with long crystal scintilla-...

A highly granular hadronic calorimeter with scintillator tiles as active material and stainless steel as absorber is proposed based on the particle ow algorithm to address major challenges from pre- cision measurements of jets at the future lepton colliders, such as the Circular Electron Positron Collider (CEPC). A large-scale HCAL prototype with 40 longitudinal layers and 13000 readout...