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ok, so most of the difference is due to the extra signal events with mes<5.27. Can we apply the same cut (mes>5.27) in the RooFit implementation of the fit? Since the tail introduces large part of the sistematics it would be nice to cut it out as we did for the prl measurement. another point. It would be important to have the possibility to still perform the binned technique, just to have an additional crosscheck (once we will implement new feature the old fit will become obsolete). Is it possibile to fill mes histogram from a dataset? If yes, it would be easy to put a switch and reuse the old vubmes method. Daniele > Hi all, > I've performed the check on the mES histogram used for the computation of > data semileptonic events. Results/considerations can be found in > http://www.slac.stanford.edu/~asarti/recoil/valid/mesvalid.html > > My conclusions are that we can safely assume that effect we're seeing > comes from mES fit technology and NOT from analysis bias/errors. > > So, if you agreee, I will concentrate from now on, on the q2 (q2,mx) > analysis. > > Otherwise, please fell free to suggest additionalchecks that you'd like to > see. > > Cheers, > Alessio > > ______________________________________________________ > Alessio Sarti Universita' & I.N.F.N. Ferrara > > >>>I'm in Ferrara<<< > > tel +39-0532-974328 Ferrara > roma +39-06-49914338 > SLAC +001-650-926-2972 > > "... e a un Dio 'fatti il culo' non credere mai..." > (F. De Andre') > > "He was turning over in his mind an intresting new concept in > Thau-dimensional physics which unified time, space, magnetism, gravity > and, for some reason, broccoli". (T. Pratchett: "Pyramids") >