Hi Heiko, fitting the non BBbar MC the parameter that we get for the Argus PDF is very similar to the BBbar MC (Argus Shape parameter is 24.89 ± 0.37 now w.r.t. the other value 25.23 ± 0.4 - see http://www.slac.stanford.edu/~petrella/mesfits/mesfits.html) So it seems that this background is already described by the one Argus we have been using. Is that right? Antonio Heiko Lacker ha scritto: > Hi, > > any news from the fit on MC when mixing in the non-BBbar MC? > > Cheers, > Heiko >