Hoi Ric,
why don't we take the "correct" value of 10.4% for b2c as in decay.dec
to which your simuboot checks will converge if you use enough
statistics? And why don't we subtract the b2u instead of dividing?
Cheers,
--U.
Riccardo Faccini writes:
> > Riccardo is verifying that the total BR corresponds to 10.4% looking at
> > MC truth at generator level.
> >
> I run at simuboot level over 110K generic Bch and 110K generic B0 with no
> selection whatever and I counted the number of events with a semileptonic B at generator
> level.
>
> I counted 10.56+/-0.04 % , consistent between electrons and muons, B0 and
> Bch.
>
> In order to get the Br(b->clnu) one needs to divide by 1.0123 in order to
> subtract the Vub component and therefore
>
> Br(b->clnu) in generic =(10.43 +/- 0.04)%
>
> Ric
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