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Ciao Concezio, > All variables look reasonably similar (could you please double check > this as well?) apart from wdeltam, i.e. the missing mass squared for the > partial D*+ reconstruction, see e.g. p.12, left plots of Michaels' > presentation and left plots of p.26 of BAD1383. In release 18 the > distributions for both enriched and depleted samples extend to lower > values wrt release 14 and the shapes are quite different. Has anyone > seen this effect yet? that may be a trick of the x scale: they are quite different. I reproduced the plot, overlapping the wdeltam distributions for R18 and R14, SL cuts on Run3 generic MC: you can find it in http://www.slac.stanford.edu/~sacco/plots/wdeltam.gif where the crosses are R18. They look quite similar, although there are discrepancies near zero. The number of rejected events with a cut at -3 is 32.1% for R18 and 30.1% for R14. All the best, Roberto