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Hi All, I have made some more plots of interest comparing the old and new production. - plots below are after Mes sideband subtraction (data = points, cocktail MC = histo) - intpur >0.25 and EnergyGammaCMS>1.3GeV are applied. - the MC is weighted to have the same ratio of B0 and Bchg as in data after sideband subtraction. (NOTE: just look at the top plots in the files listed below.) The number of neutrals in the Xs: -------------------------------------------------- - with goodPhoton selection applied (energyGam>0.08, 0.05<lMomGam<0.5, s9s25Gam>0.9) http://www.slac.stanford.edu/~clareb/NewChecks2/DataCockNewB0Bchg/comparisonngoodGamXsEstarcut.eps - and for the old production http://www.slac.stanford.edu/~clareb/NewChecks2/DataCockOldB0Bchg/comparisonngoodGamXsEstarcut.eps -without goodPhoton selection applied - new http://www.slac.stanford.edu/~clareb/NewChecks2/DataCockNewB0Bchg/comparisonnGamXsEstarcut.eps -old http://www.slac.stanford.edu/~clareb/NewChecks2/DataCockOldB0Bchg/comparisonnGamXsEstarcut.eps Without the photon quality cuts applied, the data-MC agreement with the new production is worse than with the old production, but with the goodPhoton selection the agreement seems better with the new production. Total neutral energy in the Xs: -------------------------------- - good photon selection is applied -new http://www.slac.stanford.edu/~clareb/NewChecks2/DataCockNewB0Bchg/comparisonTotXsNeuEEstarcut.eps -old http://www.slac.stanford.edu/~clareb/NewChecks2/DataCockOldB0Bchg/comparisonTotXsNeuEEstarcut.eps The agreement is better with the new production. Total charged track energy in the Xs: ------------------------------------- - good tracks very loose is applied -new http://www.slac.stanford.edu/~clareb/NewChecks2/DataCockNewB0Bchg/comparisonTotRecoilChgEEstarcut.eps -old http://www.slac.stanford.edu/~clareb/NewChecks2/DataCockOldB0Bchg/comparisonTotRecoilChgEEstarcut.eps Emiss - PMiss: -------------- -new http://www.slac.stanford.edu/~clareb/NewChecks2/DataCockNewB0Bchg/comparisonMmissEstarcut.eps -old http://www.slac.stanford.edu/~clareb/NewChecks2/DataCockOldB0Bchg/comparisonMmissEstarcut.eps Please take a look, and let me know if you have any comments. We are also looking at the Mes shift between run 1-3 and run4 as brought up by Daniele and post some plots tomorrow. Thanks Clare