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FCS Ecal pi0 tower by tower fit for run22 data

Updated on Thu, 2022-01-27 16:12. Originally created by liangxl on 2022-01-24 16:10.

 - Data set: MuDst from FCS test run 23007067 , 23007068, 23007069, 23007075, 23007076 (fcsGainCalibration)

 - Event selection: 1. initial gain : 5.3 MeV/ch (default)    2. each cluster energy > 1 GeV    3. energy asymmetry for cluster pair < 0.7    4. keep the only best cluster pair with highest energy

 - Fit function: Gaussian (signal) and power * exponential (background) function to fit for the plot (signal + background)

 
 
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