Hi Kerstin, Kerstin Tackmann wrote: > Hi Wolfgang, > >>>> In this case you should >>>> not apply any reweighting at all and you should also use different magic >>>> factors. Did anybody check this? >>> I did recompute the magic k numbers when we introduced this SP5/SP6 >>> correction. I am sure I did it for the full statistics and I just >>> crosschecked with my notes that I also recomputed the numbers for the >>> individual run periods as they are in wfermifile.dat, assuming the SP5 vs. >>> SP6 reweighting will be done independent of the run flag. So I think >>> things are used consistently here. >> For the new weights/weight files, the wfermifile is not used any more >> and the magic factor is calculated on the fly. Please check the output >> of the log file. BUT I check the code with Kerstin against her numbers. > > Are these the numbers that are computed automatically: > B0bar -> Xu+ l- nubar + CC = 1.03533 > B- -> Xu0 l- nubar + CC = 1.0335 > ? Yes. > I got these numbers from my logfile for Run1+2. These are actually > different from the numbers I see in the wfermifile for Run1+2 (those are > smaller than 1). Are you saying they should be the same? Yes, if you have the correct weight file. The wfermifile has a certain assumption about the exclusive BF. The wfermifile should be for Belle04 weights. Cheers, Wolfgang > Kerstin > -- ------------------------------------------------------------------------ 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] ------------------------------------------------------------------------