I did the same plots for electrons and muons separately
spectra
http://www.slac.stanford.edu/~daniele/vub/el/pcmslepvubandvcb.eps
http://www.slac.stanford.edu/~daniele/vub/mu/pcmslepvubandvcb.eps
efficiency
http://www.slac.stanford.edu/~daniele/vub/el/effpcmslepvubandvcb.eps
http://www.slac.stanford.edu/~daniele/vub/mu/effpcmslepvubandvcb.eps
ratio
http://www.slac.stanford.edu/~daniele/vub/el/ratioeff.eps
http://www.slac.stanford.edu/~daniele/vub/mu/ratioeff.eps
-> electron efficiency is 70%
-> muon efficiency is 45%
Daniele
On Wed, 20 Nov 2002, Daniele del Re wrote:
>
> > could you please explain why 60% is what we expect? I guess that your
> > plot shows the reconstructed electron yield, is that right? It cannot
> > be the generated spectrum since that would extend further down towards
> > low momentum. It cannot be a mixture between e and mu since then we'd
> > see changes in the transition region where the mu identification eff
> > goes to zero.
>
> reconstructed momentum for electrons + muons. Since the beginning we
> discussed about this 50% (with the cut at 1 GeV) in lepton selection
> efficiency... I expected 50% since it is 50% on data. I will try to do
> the breakdown e and mu.
>
> >
> > >From acceptance (geometric and momentum) I would expect to see about
> > ~80% of the spectrum. This is at least what I saw in the breco tagged
> > sl BF analysis of last summer and is consistent with what Thorsten has
> > in the lepton tagged analysis.
> >
>
> what are they getting in the "revenge" of your analysis (Valery ecc...)
> for this efficiency?
>
> Daniele
>
>
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