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Hi Roberto, this is interesting. I have one question, though: Comparing the data histograms for the various variables for the different track lists, it looks like they are identical, i.e. the data distributions do not seem to change when using different track lists. This seems unlikely (especially as the MC histos change when changing the track list). Could there be have been a typo in either the data-MC comparison setup (causing the same data ntuples to be used for the three sets) or in the ntuple production (i.e. the track lists were the same for data)? All the best, Kerstin On Wed, 19 Mar 2008, Roberto Sacco wrote: > Hi All, > > to understand the effect of different track lists in input to VubRecoilUser, > I produced a web page with run3 data/MC comparison plots side by side. You > can access it here: > http://www.slac.stanford.edu/~sacco/thecomparison/tracking/comparelists.html > > All the best, > > Roberto