[Rivet] ATLAS prompt photon analysis

[Kevin Einsweiler]

Mike,

   It would be a good idea to get someone else from the Inclusive Photon
analysis effort to double check the contents of the tables (perhaps you have
done this already), and then I assume you will send them off to the HEPDATA
contact. If you will be following this to the bitter end, please let me know
what the HEPDATA link is once you have it...

   Many thanks,

        Kevin

On Thu, Feb 17, 2011 at 17:05, Mike Hance <michael.hance at cern.ch> wrote:

> Hi All,
>
> I've attached a tarball that (I think) contains everything needed to put
> the ATLAS prompt photon results into HEPDATA, as well as a corresponding
> RIVET routine that seems like it might be doing the right thing.
>
> One thing I should note up front is that, as far as I can tell, the paper
> doesn't have a proper SPIRES ID.  I suspect this will change when PRD
> finally publishes the paper (it's been accepted for publication, but I don't
> think it's actually made it into an issue of the journal yet), so in the
> mean time, I've called the analysis "ATLAS_2010_S1234567".  My attempts at
> calling the analysis something like "ATLAS_2010_PROMPTPHOTONS" were rebuffed
> by RIVET, so I'm not sure of the right thing to do in this case.  If you
> want me to relabel it as something else, just let me know; otherwise, feel
> free to call it whatever you like.
>
> The contents of the tarball are:
>
> ATLAS_2010_S1234567.info - The .info file that describes the analysis.
>
> ATLAS_2010_S1234567.raw  - A flat file that breaks down the different (E_T,
> eta) bins and the corresponding measurements, uncertainties, and so forth.
>
> ATLAS_2010_S1234567.dat  - This is the 'final' flat .dat file corresponding
> to the ATLAS measurements, for comparison with the RIVET output.
>
> ATLAS_2010_S1234567.aida - The .aida file produced from the .dat file
> above.
>
> ATLAS_2010_S1234567.plot - The .plot file for the three histograms
> associated with this analysis.
>
> ATLAS_2010_S1234567.cc   - The RIVET routine.
>
>
> I've tested this running PYTHIA standalone, but the cross sections for
> prompt photon production are low enough that the histogram never really gets
> populated.  I also ran the routine using the ATHENA RIVET interface against
> some ATLAS photon+jet (EVGEN) samples, and the results seemed reasonable,
> but I wouldn't be surprised if there are still some bugs lurking in there.
>  I'll try to test this stuff against some filtered dijet samples next week.
>
> In any event, please feel free to let me know if there's anything
> unclear/wrong with what I've done, and I'll try to fix it ASAP.
>
> Finally, thanks to everyone who helped (and bugged) us to get this done - I
> apologize it took us so long.  Next time should be much faster, now that we
> know what we're doing.
>
> Thanks!
>
> -Mike
>
>


-- 
-----------------------------------------------------------------

     Kevin Einsweiler

        CERN
            PH Division
            CH-1211 Geneva 23
            Switzerland

  EMail:  Einsweiler at lbl.gov  or  Kevin.Einsweiler at cern.ch

  Office: +41 22 767 2903       Lab:   +41 22 767 7273
  FAX:    +41 22 767 8350       Cell:  +41 76 487 3484 (16-3484 at CERN)

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