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Hi Wolfgang, On Wed, 28 Sep 2005, Wolfgang Menges wrote: > > Hi Heiko, > > here is a list of what we discussed yesterday: > > - we discussed the neutrals problem again looking at the ratio of > branching fractions as a function of mm2. Roberto will make some more > plots extending the scan range and trying different selections. > > BAD 540 has some scans on page 94. These look worse than ours. > > - we looked at more plots comparing neutral and charged tracks selection > (our and Michaels). Using the old neutrals and Michaels charged tracks > look promising. Roberto might look at this. > > Updates: > > - Klong: we are waiting for the work from David. He won't present > anything at the tools workshop. Nobody asked him. We probably missed to say that this is something important. :-( > - Antonio will produce reduced ntuples (cut on p at 1 GeV), which will > speed up the fitting and reduce the storage > > - Antonio is working on the 1d unfolding. It is working but the > acceptance calculating need some more attention. > > - neutral/charged B branching fraction. Roberto and Chukwudi looked at > the asymmetry in the MC generator. It should be 4% but they measure > ~13%. Could be due to the restricted phase space. Thanks for posting this. Could we check how this difference looks like if we only considered non-resonant MC ? Concerning possible data-MC differences: I havn't have the time yet to look into Chukwudi's systematic studies. We expect some differences. E.g. the amount of pi0 contributing can be different for both cases. The same holds for charged multiplicities. Systematics from b->c could be different. Cheers, Heiko > Cheers, > > Wolfgang > > On Tue, 27 Sep 2005, Heiko Lacker wrote: > > > Hi Wolfgang, > > > > could you please summarize in short the > > main conclusions from the meeting? > > > > Heiko > > > > On Mon, 26 Sep 2005, Wolfgang Menges wrote: > > > > > Dear all, > > > > > > as so many people are at SLAC this week, we will have a meeting > > > tomorrow afternoon at 3pm in ROB. We will hijack either pine or cedar. I > > > am sorry for the non-european time. If there is a need for another meeting > > > at an european time slot, please speak up. > > > > > > With regards, > > > > > > Wolfgang > > > > > > ----------------------------------------------------------------------------- > > > Wolfgang Menges > > > Queen Mary, University of London SLAC, MS 35 > > > Mile End Road 2575 Sand Hill Road > > > London, E1 4NS, UK Menlo Park, CA 94025, USA > > > ++44 20 7882 3753 ++1 650 926 8503 > > > [log in to unmask] > > > ----------------------------------------------------------------------------- > > > > > > > ----------------------------------------------------------------------------- > Wolfgang Menges > Queen Mary, University of London SLAC, MS 35 > Mile End Road 2575 Sand Hill Road > London, E1 4NS, UK Menlo Park, CA 94025, USA > ++44 20 7882 3753 ++1 650 926 8503 > [log in to unmask] > ----------------------------------------------------------------------------- >