[Rivet] [Rivet-svn] r2339 - in trunk: include/Rivet/Projections src/Analyses src/Projections

[Andy Buckley]

On 19/03/10 11:26, Frank Siegert wrote:
> This commit actually does have a sizable impact on some analyses. A 
> comparison of all Z+jets @ Tevatron Run II and QCD @ Tevatron Run I and II 
> can be found here:
> 
> http://www.ippp.dur.ac.uk/~fsiegert/tmp/plots-rivetr2339/
> 
> (compares between r2335 and r2339)
> 
> The most noteworthy ones are probably:
> 
> http://www.ippp.dur.ac.uk/~fsiegert/tmp/plots-rivetr2339/PL_ZTEV/ZTEV_NJet/index.html#D0_2009_S8349509
> Here the jet pTmin cut was missing and the internal D0ILCone Et_min was
> incorrectly set.
> 
> http://www.ippp.dur.ac.uk/~fsiegert/tmp/plots-rivetr2339/PL_ZTEV/ZTEV_NJet/index.html#D0_2008_S6879055-d01-x01-y01
> The internal D0ILCone Et_min was incorrectly set, here you can see that this
> has a ~5-10% effect on the jet rates.
> 
> http://www.ippp.dur.ac.uk/~fsiegert/tmp/plots-rivetr2339/PL_JQCD/JQCD_NJet_1800_Rivet/index.html#CDF_2001_S4563131
> Separate issue fixed in r2337 (eta range for FinalState wrong)
> 
> There doesn't seem to be too big an effect on the inclusive D0 RunII jet
> measurements (even though they use D0ILCone). That's probably mainly
> because most analyses either had the pTmin cut set correctly or their
> histograms are in pT.
> 
> Since almost all D0 Z analyses are slightly effected, and two even more
> significantly, I would propose that we release 1.2.1 with these fixes.
> What do you think?

I think this is a good plan. Any other fixes that we want to get in for
this patch release? I've fixed the use of TotalVisibleMomentum in the
MC_SUSY analysis, also thanks to Frank's eagle eyes, and in conversation
we decided that a more intuitive rehack of TotalVisibleMomentum is
needed. That is low priority, but I can do it pretty fast and so am
tempted to include it in this patch: any thoughts on that?

If there are no other fixes that people want to get into Rivet before
1.2.1, I'll make the release over the weekend or on Monday.

Andy

-- 
Dr Andy Buckley
SUPA Advanced Research Fellow
Particle Physics Experiment Group, University of Edinburgh

The University of Edinburgh is a charitable body, registered in
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