are you sure that you switched off the fermi reweighting in performin the
fit with hybrid and nonres?
Daniele
> Hi,
>
> this concerns the hadronization error.
>
> Reading the BAD (ch. 7.11.3) I understand that to evaluate the error due
> to uncertainties in the hadronization model, you do the fit once using
> only nonresonant and once using only hybrid model MC for the Vub MC. You
> find a difference of 3.0% there between the final results (I assume with
> final result you mean BRBR, correct?).
>
> If I go through the fit one time using only the nonres MC and one time
> only using the mix MC, I find really different results for BRBR (using
> the default binning, i.e. one bin until the cut), though:
>
> with only nonres:
> BRBR 0.032563 0.0033704 0.00145874
>
> with only hybrid:
> BRBR 0.0132341 0.001452 0.000574687
>
> using the default mixture:
> BRBR 0.0219666 0.00234676 0.000873771
>
> This does not at all look like a 3.0% error. Did I misinterprete the
> description? Did you change anything else than just using only one type
> (nre,mix) for the Vub MC? Or maybe I misunderstood something else?
>
> Thanks,
> Kerstin
>
>
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