[Rivet] ATLAS SUSY analyses in Rivet

[Andy Buckley]

Hi Lars,

Please contact the list rather than me directly: I have CC'd it.

My understanding is that those analyses (largely implemented by
theorists rather than by ATLAS, but there are a few supplied by ATLAS)
do not correct at all for detector effects. The argument is that for
searches the detector effects are either a subleading effect, or are so
important that no approximate approach will work, so if ignoring them
does not produce nonsense then it is probably not a bad guess, provided
the results are not taken as super-precise... the exact experiment
contours probably shouldn't be, either. The people who implemented these
analyses checked that they replicated the ATLAS exclusion contours or
were conservative w.r.t. them on the benchmark models shown in the
paper, then used their analysis and the experiment's background
estimates to apply the analysis to different/new models.

I don't know who is using these analyses: I think the ATOM theory
collaboration are using them, and the Durham group wrote them. There
could, and probably are, more people making use of them but we don't get
an automatic email every time they are run ;-)

We have found problems with the CERN mail server bouncing messages from
the HepForge mailing lists and resulting in people getting kicked off.
David is going to try to do some more spam filtering on the HepForge
system but it takes time. CERN IT have not been at all helpful. I'm not
sure why you couldn't rejoin, but that list is anyway intended for
developers, not users so let's just call this a case of early (or very
late) spring-cleaning!

Andy


On 13/12/13 15:26, Lars Sonnenschein wrote:
> Dear Andy,
> I am still in the process of convincing our SUSY group to also put their
> analyses corrected for detector effects into Rivet.
> 
> From the hepex notes of the ATLAS SUSY analyses I find in Rivet it is
> not clear to me, how easy the correction has been done (e.g. simple
> bin-by-bin corrections instead of proper deconvolution as done e.g. in
> the QCD group).
> 
> Is there some Info outside ATLAS available?
> 
> Also our SUSY group convenors asked me who is using the ATLAS SUSY RIvet
> routines?
> (I explained that there is interest from the theory community to try
> their models on LHC data)
> If you could give me some names of theorists/examples,
> some slides discussing this or any other information which would make my
> life easier to convince our searches groups I would appreciate it very
> much.
> 
> Kind regards
> 
>       Lars
> 
> 
> P.S.: Apparently I have been removed from the Rivet mailing list.
> I have tried (without success) to follow both instructions of the email
> I have received below:
> 
> Date: Tue, 26 Nov 2013 10:00:02 +0100
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> To: lars.sonnenschein at cern.ch
> Subject: confirm 6cda4b3ea68cf3adb2ef62c3d77c4e7b971e6248
> 
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> ______________________________________
> Dr. rer. nat. habil. Lars Sonnenschein
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-- 
Dr Andy Buckley, Royal Society University Research Fellow
Particle Physics Expt Group, University of Glasgow / PH Dept, CERN