[Rivet] bug in ATLAS_2014_I1325553 (inclusive jets)

[Holger Schulz]

Hmm, there is a scale attribute in the source files of the plots:

E.g. in 
http://cgutscho.web.cern.ch/cgutscho/ATLAS_2014_I1325553/d01-x01-y02.dat:

# BEGIN HISTOGRAM /Users/geon/Documents/rivetArea/stdm2013_11_inclusiveJets/mc.yoda/ATLAS_2014_I1325553/d01-x01-y02
LineColor={[HTML]{EE3311}}
LineStyle=solid
Path=/Users/geon/Documents/rivetArea/stdm2013_11_inclusiveJets/mc.yoda/ATLAS_2014_I1325553/d01-x01-y02
*Scale*=1.9321773836416558e-09
Title=MC
XLabel=
YLabel=


Can you find out what that Scale thing was for/from?

Thanks,
Holger


On 21/05/15 21:53, Christian Gütschow wrote:
> 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 
> <mailto: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 <mailto: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 <mailto:chris.g at cern.ch>
>>
>>
>>
>>     _______________________________________________
>>     Rivet mailing list
>>     Rivet at projects.hepforge.org  <mailto:Rivet at projects.hepforge.org>
>>     https://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 <mailto:chris.g at cern.ch>
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.hepforge.org/lists-archive/rivet/attachments/20150521/02494e0c/attachment.html>