CEPC Calorimeter Weekly Meeting on R&D activities (29 March 2024)

- 10:00→10:05
  
  News 5m
  
  Speakers: Haijun Yang(Shanghai Jiao Tong University), Jianbei Liu(University of Science and Technology of China), Yong Liu(Institute of High Energy Physics)
- 10:05→10:45
  Talk on selected topics of CEPC calorimetry R&D
  
  Conveners: Haijun Yang(Shanghai Jiao Tong University), Jianbei Liu(University of Science and Technology of China), Tohru Takeshita(Shinshu University), Yong Liu(Institute of High Energy Physics)
  - 10:05
    
    (Invited) Talk on selected R&D topics: Progress on AHCAL beamtest data analysis 40m
    
    Speaker: 洪滨刁(中国科学技术大学)
    
    Performance and validation of AHCAL.pptx
- 10:45→11:25
  Status updates on CEPC calorimetry R&D activities
  - 10:45
    
    Status on ScW-ECAL prototype beamtest studies 10m
    
    Focusing on ScW-ECAL prototype beamtest data, including calibration, reconstruction, simulation (+digitisation), shower profile and PID studies
    
    Speakers: Jiaxuan Wang(University of Science and Technology of China), Tatsuki Murata(The University of Tokyo)
  - 10:55
    
    Status on AHCAL prototype beamtest studies 10m
    
    Focusing on ACAL prototype beamtest data, including calibration, reconstruction, simulation (+digitisation), shower profile and PID studies
    
    Speakers: Dejing Du(IHEP), Ryunosuke Masuda(The University of Tokyo), Siyuan Song(Shanghai Jiao Tong University), Xin Xia(IHEP), Zhiyu Zhao(TDLI/SJTU), 洪滨刁(中国科学技术大学)
  - 11:05
    Status on crystal calorimeter R&D 10m
    
    Minutes
    
    Focusing on crystal calorimeter R&D, including hardware developments, beamtest data analysis, simulation (+digitisation), reconstruction and PFA studies.
    
    Speakers: Baohua Qi(IHEP), Fangyi Guo, Zhiyu Zhao(TDLI/SJTU)
    
    Digitization for CEPC BGO crystal ECAL
    
    Digitization of Scintillation
    
    Light yield uniformity among crystals: 1%
    
    Response uniformity along crystal bar(40cmBGO): 5%
    
    Scintillation photon fluctuation: Poisson
    
    Digitization of SiPM
    
    Fluctuation from response
    
    Fluctuation from saturation correction
    
    Digitization of ADC
    
    ADC bit: 12
    
    Noise(pedestal flucation): 3 ADC
    
    Multi-gains: 3 gains, 0~1700MIP
    
    High gain(0~2.7MIP): SPE calibration and muon calibrationn
    
    Middle gain(2.7~67MIP): cover the enrgy range that most possiblely deposited in crystal
    
    Low gain(67~1667MIP): high energy event like 120/180GeV Bhabha
    
    Performance of algorithm is reasonable. Need to be checked with data from detector simulation.
  - 11:15
    
    Status on glass calorimeter R&D 10m
    
    Focusing on glass calorimeter R&D, including hardware developments, beamtest data analysis, simulation (+digitisation), and PFA studies.
    
    Speakers: Dejing Du(IHEP), Peng Hu(IHEP)
- 11:25→11:28
  
  AOB 3m
  
  CEPC-Calo TDR Meeting
- 11:28→11:30
  
  Minutes 2m

CEPC Calorimeter Weekly Meeting on R&D activities

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