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 /
> /////////////////\\\\\\\\\\\\\\\\\\/////////////////\\\\\\\\\\\\\\\\\\
>
>
|