Reinvestigating using histogram templates instead of fitting the histogram templates to functional forms and using the functional forms.

•   April 2012, we switched from using template histograms to template functional forms
  
  • Histograms seemed much less stable
  • Difficult to know how to scale energy with histogram
• We are now in a position to revisit using histograms
  • Last April, data and MC didn't really have all the same cuts and conditions
  • Can use linear interpolation to allow MC energy scale to be free in the fit
  • Use the uncertainty for the bin in which the scaled mass falls.

value = hTemplate->Interpolate( mass / alpha ); error = hTempalte->GetBinError( hTemplate->GetXaxis()->FindBin( mass/alpha ) );

Results are in an attached PDF file.  The PDF is organized like as in this last blog, and the results are to be compared with the results from that blog.