[Rivet] bug in ATLAS_2014_I1325553 (inclusive jets)

[Christian Gütschow]

Yep, they live here:

http://cgutscho.web.cern.ch/cgutscho/ATLAS_2014_I1325553/

Cheers,
Chris


On 21 May 2015 at 21:11, Holger Schulz <hschulz at physik.hu-berlin.de> wrote:

>  Christian,
>
> do you think you can still find the validation plots from back then?
>
> Holger
>
>
> On 21/05/15 20:20, RICHARDSON P. wrote:
>
> Dear Christian,
>
>   So I was comparing the results with the latest version of Heriwg++ as
> part of our testing before the next release and we were much further off
> than I expected. After looking at the analysis and the paper I believed the
> paper was plotting d sigma /dy/dpT and the analysis d sigma/d|y|/dpT which
> differ by the factor of 1/2. I contacted Vojtech and he agreed it was wrong
> so I made the change.
>
>   If it is wrong we can change it back
>
> Best Wishes
>
> Peter
>  ------------------------------
> *From:* Christian Gütschow [chris.g at cern.ch]
> *Sent:* 21 May 2015 18:44
> *To:* Rivet; RICHARDSON P.
> *Subject:* bug in ATLAS_2014_I1325553 (inclusive jets)
>
>   Dear Rivet authors,
>
>  it looks like a bug has been introduced in the current trunk version of
> the ATLAS inclusive jets measurement (the version from the last release is
> fine). Specifically, the normalisation factor in the finalise routine has
> been modified:
>
>
> https://rivet.hepforge.org/trac/browser/src/Analyses/ATLAS_2014_I1325553.cc#L83
>
>  to include an additional factor of 0.5 -- apparently to fix an issue with
> the normalisation.
>
>  There should be no such factor as absolute rapidity has been used
> consistently throughout the analysis and such a factor is only really
> necessary if absolute and signed rapidities are being mixed (axis label vs
> cross section differential).
>
>  Note that the original version (without 0.5) has been validated and no
> issues with the normalisation have been observed, so I would recommend to
> unfix this again. :-)
>
>
>  Many thanks,
> Chris
>
>  --
>
>   Dr. Christian Gütschow
>
>   TU Dresden
>  Institut für Kern- und Teilchenphysik
>  Zellescher Weg 19
>  01069 Dresden
>
>   > E17, Andreas-Schubert-Bau
>  > chris.g at cern.ch
>
>
>
> _______________________________________________
> Rivet mailing listRivet at projects.hepforge.orghttps://www.hepforge.org/lists/listinfo/rivet
>
>
>


-- 

 Dr. Christian Gütschow

 TU Dresden
 Institut für Kern- und Teilchenphysik
 Zellescher Weg 19
 01069 Dresden

 > E17, Andreas-Schubert-Bau
 > chris.g at cern.ch
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