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Hi Bob, you are right I did not realize we were reweighting in q+ instead of k+. In this case we are doing the correct reweighting in the deFazio Neubert approach thanks Ric On Mon, 9 Feb 2004 [log in to unmask] wrote: > Hi Ric, > > You said we need to go back to the generator-level mx-Q2-El > distribution to properly find the weights for the hybrid model. Let me > try to understand this. If we reweight events according to their value of > q+ (which is stored in the MC tree) we reproduce changes in L and a; see > figures 25-28 of BAD320; within the context of the Neubert-de Fazio MC > there is nothing to be gained by going back to the generator. I know > there is the issue regarding decoupling L from m_b; however, at present we > don't really understand how to set m_b indepedently in the perturbative > part. Once we discover/decide how to do this, we can of course remake the > hybrid model with m_b and L separated. Is this what you intended, or did > I miss your point? > > Bob > > \\\\\\\\\\\\\\\\\//////////////////\\\\\\\\\\\\\\\\\////////////////// > / Robert V. Kowalewski \/ Dept. of Physics and Astronomy \ > \ particle.phys.uvic.ca/~kowalews /\ University of Victoria / > / Tel: (250)721-7705 \/ P.O. Box 3055 \ > \ Email: [log in to unmask] /\ Victoria, BC V8W 3P6 / > /////////////////\\\\\\\\\\\\\\\\\\/////////////////\\\\\\\\\\\\\\\\\\ > >