 |
 |
> 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. Hi, I'm not sure that I've understood 100% what you say. I'm fitting the number of events in the 5.27 -> 5.29 region as VubAnalysis do. No signal events below 5.27 are considered here. What you suggest is to fit the argus in the 5.21 -> 5.26 as VubAnalysis and let the fit do the rest starting from those values or you're saying something different? [the extended likelihood fit returns the number of events btw 5.27 and 5.29]. Alessio > > 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") > > >