[Rivet] Validation meeting

[Hendrik Hoeth]

Thus spake Andy Buckley (andy.buckley at durham.ac.uk):

>  * James: run Rivet (1.1.1?) in Athena with Pythia 6 S0-Pro tuning on
> CDF_2001 and CDF_2008_NOTE (Drell-Yan UE). I've sent the S0-Pro tune
> params around by email. Phone me if you're having any trouble. To be
> presented as part of Andy's Atlas MC talk on Wednesday 3rd Dec.

CDF_2008_NOTE means CDF_2008_NOTE_9351 in this context. But in fact you
can run both NOTE_xxxx analyses. The NOTE_9337 as it is in Rivet is the
<pT> vs n_charged plot in minbias events.

In the released version they might still be called CDF_2008_MINBIAS and
CDF_2008_DRELLYAN.

You need the following analysis specific settings:

- CDF_2008_MINBIAS:
     tevatron1960.params
     fpythia-longlife-stable.params

- CDF_2008_NOTE_9351:
     tevatron1960.params
     fpythia-cdfdrellyan.params
     fpythia-longlife-stable.params

I fear that in Pythia 6 you will need multiple runs for the CDF_2001
analysis. Common for all runs is tevatron1800.params. In addition to a
run without CKIN(3) cut we're running with CKIN(3)=10 and CKIN(3)=20.
Merging points for the histograms are at 0, 18, and 30 GeV as defined in
the uemerge script which you find in the current Rivet HEAD version:

uemerge CDF_2001_S4751469.aida:1800:0 \
        CDF_2001_S4751469_CKIN10.aida:1800:18 \
        CDF_2001_S4751469_CKIN20.aida:1800:30 \
        > out.dat &&
flat2aida out.dat

I guess that's bad news if you want to run within the ATLAS framework?
Anyhow: With a single run without CKIN(3) cut you are still able to use
some of the plots.

> We would like to release very soon, probably shortly after the Atlas
> week. The prerequisites for release are
> 
>  * Get validation system running so we can manually okay the W+jets
>    analysis (+ another?) for Sherpa, FHerwig and Pythia 6. Put plots
>    online.

I would show at least one of the LEP analyses, too. The DELPHI_1996 is
fairly simple to run in any generator and uses lots of different pieces
of Rivet (thanks to the large number of observables).

> >>>  * Aims for next week's working meeting.
> 
> To miss the MC and SM meetings, I suggest that we meet at 10am on
> Wednesday morning.

My plane arrives at 11:05, so I'll join whenever arrive at CERN.

> >> Three more from me, while I remember:
> >>
> >>  * Next gens for Prof tuning
> 
> As mentioned in the meeting: the 5 core MCnet gens are our next set on
> the hitlist. We will finish the Py6 pT/interleaved tune to Tevatron
> data, write it up, and then progress to Herwigs, Py8 and Sherpa. In
> that order?

I think we can start with Herwig/Py8/Sherpa in parallel to the Py6-UE
writeup.

   Hendrik

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