CEPC ECAL MIP Spectrum Issue Overview - Energy Reconstruction and Temperature Comparison Insights
Explore the CEPC ECAL MIP spectrum issue overview with insights on energy reconstruction, bad channel exclusion, temperature comparisons, and cosmic ray temperature checks. Learn about concerns in the central region channels and MIP calibration, highlighting the importance of temperature corrections. Find out more about the key findings and potential solutions discussed in the presentation by Jiaxuan Wang.
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Presentation Transcript
CEPC ECAL MIP spectrum issue overview 2024/12/23 Speaker : Jiaxuan Wang
Energy reconstruction : bad channel excluded All channels & Bad channels excluded Threshold setting: 0.8MIP 2025/3/22 2
Bad channel position Odd Layer much better than even layer 2025/3/22 3
Temperature comparison CR temperature is 3.2 degrees lower than TB on average Cosmic ray test Beam test 2025/3/22 4
Cosmic ray temperature check Temperature < 19 && Temperature > 22 Temp < 19 Temp > 22 2025/3/22 5
Cosmic ray temperature check Temperature < 19 && Temperature > 22 Temp < 19 Temp > 22 2025/3/22 6
Cosmic ray temperature check Temperature < 19 && Temperature > 22 Temp < 19 Temp > 22 2025/3/22 7
Cosmic ray temperature check Layer 9 chip 2, all chip 2 Ratio: Temperature < 19 / Temperature > 22 2025/3/22 8
Summary Energy reconstruction concerns channels at central region, which may also have problem on MIP calibration. Temperature DOES matter. Correction on MIP, but how? 2025/3/22 9
