[Rivet] Problem with Rivet analysis ATLAS_2014_I1319490

[Andy Buckley]

Hi Jesper,

Copying to the Rivet main developer list. The ATLAS rep is on there, 
hopefully he can help.

Andy


On 23/09/15 15:01, Jesper Roy Christiansen wrote:
> Hi Andy and Matthew
>
> I have been trying to study W + Jets using the Rivet analysis
> ATLAS_2014_I1319490.
>
> But there is one figure that looks odd. If I compare the dphi(j_1,j_2)
> the last bin drops for the MC simulations. (see attached figure, ignore
> name of curves :)). This behaviour is not something I expected, and also
> if I use an older Rivet analysis, ATLAS_2012_I1083318, this behaviour is
> not there (see attached figure) for the same MC runs.
>
> I tried to look at the two analysis, and the only difference I could
> spot was the new analysis using the wFinder class, which the old one
> does not.
>
> However, if I look at the bin range for the last bin it goes from 3.0 -
> 3.2. I think this is a mistake, it should probably be cut-off at PI. The
> mistake is already there in the Durham hep database, so it should
> probably also be updated there. Since I do not have acces to the
> original analysis, I can not confirm what the true value should be and
> that indeed whether this is a bug. Maybe you can direct this to the
> correct people, such that it can be fixed.
>
> Cheers,
> Jesper


-- 
Dr Andy Buckley, Lecturer / Royal Society University Research Fellow
Particle Physics Expt Group, University of Glasgow