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Hi Roberto, >> I see in VubXlnu.cc that there is some "pi0 killing" going on when the >> kinematic variables for the soft pi- partial D* reco are computed (killing >> as in they are not computed for every pi0). This killing probability is a >> function of the soft pi0 momentum. Why is this done and where do the >> parameter (and the parametrization) of this function come from? > > concerning this, we have introduced the killing since we use a pi0 list to do > the D* partial reconstruction. We took the recipe from the Neutral > Reconstruction AWG page (for R18, of course, given that nothing was ever > updated to newer releases): > http://www.slac.stanford.edu/BFROOT/www/Physics/Analysis/AWG/Neutrals/validation/recipie18.html Great, thanks so much for pointing me to this! All the best, Kerstin