[Rivet] Reminder: Rivet meeting today, 2pm UK

[Andy Buckley]

Andy Buckley wrote:
> Hi everyone,
> 
> Just a reminder that we'll be having a Rivet phone meeting today.

And here are some mini-minutes:

>  * W+jets analysis

Looks like the eta acceptance cut was wrong, and correcting it brings
the MC cross-section back below the data. Emily will commit it once
finished.

>  * D0 W pT analysis (I think this is solved, and Lars can't make it)

It seems like the whole "problem" with the W/Z scaled pT spectrum ratio
was really a problem with how the histograms were being used,
introducing an extra bin width factor which skewed the distribution.
Lars has fixed his code now to use a DPS for the ratio. This won't be a
problem with YODA, of course ;)

>  * Grid submission: EDS -> gLite, API, etc.

Piggy-backing off Atlas may not be possible, if the Atlas sites have
installed Genser in the Atlas sandbox rather than globally. James and
Frank will check this out, and also investigate cutting down the size of
our job tarball (removing Boost and most LHAPDF grid files) and whether
it is possible to send pilot jobs for run-set initialisation of
generators with hefty init phases (Sherpa, we're looking at you...)

>  * Validation system

Frank and Andy will aim to have a simple analysis system by next week's
meeting. We'll first concentrate on comparison of data files, without
worrying about the submission details.

>  * New Rivet and AGILe interfaces

ADVERT:
Have a go if you're adventurous! AGILe:bin/agile-rungen and
Rivet:bin/rivet are the programs, but you'll also need my HepMC
interface library, which is part of hepmcview:
http://www.ippp.dur.ac.uk/~buckley/hepmcview-0.3.tar.gz
You can even pipe directly from agile-rungen into hepmcview!

>  * YODA status

YODA will have its first real application for parsing validation output,
so Andy will make sure that there is enough functionality for this in
the next couple of days.

NEXT MEETING:

Our next meeting will be 3pm on Friday 24th Oct (just before MPI at LHC).
Usual phone-in details.

Cheers,
Andy

-- 
Dr Andy Buckley
Institute for Particle Physics Phenomenology
Durham University
0191 3343798 | 0191 3732613 | www.insectnation.org