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Shower Shape Distributions - Triple Gaussian Fits (Revised)
Shower shape fitting procedure:
- Fit with single Gaussian shape using 3 highest strips
- Fit with double Gaussian using 5 strips from each side of the peak [11 strips total]
First Gaussian parameters are fixed from the step above - Re-fit with double Gaussian with initial parameters from step 2 above
- Fit with triple Gaussian [fit range is 15 strips]
Initial parameters for the first two Gaussian are fixed from step 3 above - Fit with triple Gaussian with initial parameters from step 4 above
(releasing all parameters except mean values)
Fitting function "[0]*(exp ( -0.5*((x-[1])/[2])**2 )+[3]*exp ( -0.5*((x-[4])/[5])**2 )+[6]*exp ( -0.5*((x-[7])/[8])**2 ))+c"
All of these distributions are for first preshower bin (Pre1 = 0, Pre2 =0)
u plane
v plane
u plane (Sum of sectors 1, 4, 7 and 10)
v plane (Sum of sectors 1, 4, 7 and 10)
u plane (Sum of sectors 2, 5, 8 and 11)
v plane (Sum of sectors 2, 5, 8 and 11)
u plane (Sum of sectors 3, 6, 9 and 12)
v plane (Sum of sectors 3, 6, 9 and 12)
Eta Dependence (eta <= 1.4)
Eta Dependence (eta > 1.4)
Energy dependence (E<=16GeV)
Energy dependence (E >16GeV)
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