Hi Kerstin,
Kerstin Tackmann wrote:
> Hi Wolfgang,
>
>> There are two ways out. Either we switch to release 18 MC/SP8 which will
>> have better D** description, better other things, but we have to adjust
>> a lot of (more or less hard) coded numbers. But it will also solve the
>> SP5/SP6 difference for the signal MC. We have to calculate new weights
>> and magic factors. The other way is to apply some reweigting for SP5 to
>> get the same as SP6.
>>
>> Kerstin, haven't you produced something for this? Which we are not using
>> at the moment?
>
> I am not quite sure I understand your question correctly. I'll try
> different interpretations - if you meant neither, let me know....
>
> a) As Heiko already said, reweighting the D** in SP5 to get the improved
> description in SP6 is not really possible, because the low mD** are simply
> not populated in SP5, so there is nothing we could reweight.
>
This was my question. Thanks,
Wolfgang
> b) We are using some reweighting to adjust the ratio of SP5/SP6 in the
> nonres and resonant signal MC and so that it corresponds to the ratio of
> Run1-3/Run4. This is what you mention in a later email.
> This is only for signal MC at this point, though (and when we introduced
> this, the magic k numbers where adjusted accordingly).
>
> c) We have not yet looked at any reweighting of SP5/SP6 for the generic MC
> to account for differences in overall normalization as far as I know.
>
> Cheers,
> Kerstin
>
--
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Wolfgang Menges
Queen Mary, University of London SLAC, MS 35
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