Shower shape fitting procedure:

1. Fit with single Gaussian shape using 3 highest strips
2. 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
3. Re-fit with double Gaussian with initial parameters from step 2 above
4. Fit with triple Gaussian [fit range is 15 strips]
   Initial parameters for the first two Gaussian are fixed from step 3 above
5. 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 ))"

Fit results for pp2006 data

Pre1=0 Pre2=0                                                           Pre1=0 Pre2>0 

Pre1 < 4E-3                                                        Pre1>=4E-3

v plane

Pre1=0 Pre2=0                                                   Pre1=0 Pre2>0

Pre1<4E-3                                                        Pre1>=4E-3

Pre1=0 Pre2=0                                                   Pre1=0 Pre2>0

Pre1<4E-3                                                        Pre1>=4E-3