[Rivet] bug in ATLAS_2014_I1325553 (inclusive jets)

[Frank Siegert]

Hi David,

I think this is a misunderstanding -- of course the scaling by
crossSection/sumOfWeights is implemented fully in the analysis in the
end. Christian was back then just using a manual ":Scale=..." on the
command line to implement this factor because he hadn't yet realized
that <rant>the yodamerge script needs the obvious --assume-normalized
option (amongst the Sherpa team commonly referred to as the
"assume-normalized trap") to function correctly.</rant>

Cheers,
Frank


On 22 May 2015 at 09:49, David Grellscheid
<david.grellscheid at durham.ac.uk> wrote:
>
>>> AMI xsec = 2.9675E+07 * 1000.
>>> SumOfWeights = 1.5358320748e+19
>>> --> scale factor = 1.9321773836416558e-09
>>>
>>> which I calculated manually at the time, without using the finalise
>>> method.
>>>
>> That makes sense.
>
> I disagree. If scale factors are needed to validate the Rivet analysis,
> they need to be encoded in the analysis itself. Otherwise we're losing
> reproducibility, which is one of the main points of coding Rivet
> analyses in the first place.
>
> See you,
>
>   David
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