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Hello, here is a summary of what was discussed yesterday (please correct if appropriate): BF systematics -------------- there were a few incorrect things in Alessio's posting. Fixing them the situation should not be too bad and finalizing this part should be straight forward. We should have the systematics separately for B and D Branching Fractions for several Mx cuts: 1.4,1.5,1.6 and 1.7 GeV. blinding -------- in order to check cut stability on data we want to be able to see the fit result rescaled by a "hidden efficiency" i.e. an unknown factor that rescales both the central value and the error on the measurement. cross-feed ---------- it is important to include in the efficiency estimate also the Xfeed. The impact on the Mx shape is instead relatively small. Turning on and off the Xfeed the effect is anyhow rather small (7-8%) and we are confident that the Breco systematics will cover the uncertainties on it. Breco systematics ----------------- the mes shape is properly described by our fits for any number of pi0s in the final state. The study of the stability of the measurement versus the purity of the sample still suffers from statistics: will be redone add more cocktail in the "data" GTLV + AS --------- The new selection has a definitely better data-MC agreement, but there might be a hint of a bias in the measurement. Daniele is investigating it. BAD --- We are in a reasonable shape. Section 6 has been rewritten (by Ric). Sections 2&3 have been adjusted by Vera. Section 4 has been checked by Giancarlo. Ric will start bugging people on updating the plots and gathering the material. The aim is to get as much as possible by the end of the week and then have an internal reading on monday. next steps ----------- by wednesday (8:30 am - next meeting) we should have [AT LEAST] sign off "new selection", prepare blinding (Daniele) removal of duplicates on both data and MC (Alessio) Breco sys and mes fit numbers (Luigi) numbers for smaring,killing,PID systematics(Urs) B and D BF systematics (Alessio) by Friday the BAD should be as complete as possible at this stage Monday -> internal BAD reading -> handle it to commettee in the middle of the week (meeting to explain to them the evolution and the plans?) ciao ric