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Hi, the following persons attended the meeting: Wolfgang Vera Sheila Kerstin Heiko After having discussed the plots and also the prospects to get a well working KinFitter on a reasonable time-scale our proposal is to proceed without a KinFitter for the BF measurement. For the unfolding we might consider getting the best resolution and smallest bias by appropriate cuts on mm2 without using a KinFitter. It has to be seen if the loss in statistics is well-balanced by an improvement in resolution. If a well-working KinFitter becomes available on a well-suited time scale we can still use it for the unfolding. If anybody is not happy with this decision please speak up very quickly since we still want to meet the Moriond EW time schedule for the BF result. Cheers, Heiko On Tue, 3 Jan 2006, Wolfgang Menges wrote: > Hi, > > here are a couple of plots showing the mm2 distribution for the > resonant signal decays: > > http://www.slac.stanford.edu/~menges/Vub/Fitter.new/mm2.eps > http://www.slac.stanford.edu/~menges/Vub/Fitter.new/mm2_zoom.eps > > The different final states are, as expected, peaking around zero but not > very sharp. A tight cut will not help very much to separate good > reconstructed resonances from not so good reconstructed ones.. > > Cheers, > > 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] > ----------------------------------------------------------------------------- >