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Edward Hill wrote: >On Wednesday 08 June 2005 12:12 am, Wolfgang Menges wrote: > > >>I also got a few hints for the hadronisation systematic from Ed. This >>includes taking the right reweighting file and the right first mx bin. We >>are using 1.4 GeV, aren't we? The main point is that we have to adjust the >>exclusive BFs in wfermifile.dat and then recompute the scaling factor for >>the non-resonant part to have the right total BF. >> >>This applies also to the systematic studies for the variation of the >>exclusive BFs. >> >>I think the corrections factor should be (I left my notes in the office) >> >> N_h BF_new >> k = ---- * ---------------- >> N_r BF_res+BF_nonres >> >>Concezio, you should know this. Is this formular correct. Do you still >>have the numbers? >> >> > >For hadronization, the weight for the non-res will be the same as the default >setup - you just need to use the proper weightfile from Dominique. For the >exclusive mode studies, this weight (factor k above) will need to be >recomputed along with using the proper weightfile from Dom. The numbers N_h, >N_r, and (BF^SP_res+BF^SP_nonres) will all be fixed - only BF^NEW_nonres (i >think that's the number - i don't have my notes in front of me right now) >will be different when varying exclusive BFs. Whoever computed the CM2 >weights should know those numbers and can give them to Wolfgang. > >Cheers, >Ed > > Thank you Ed. The correct factor is k = (N_res / N_nonres) * (BF^nonres_NEW / BF^res_SP) so we need to change BF^nonres_NEW by the same change in a specific exclusive decay in order to keep the total charmless rate fixed). Concezio.