[Rivet] Rivet analysis for CMS UE in DY

[Hendrik Hoeth]

Hi Albert,

Thus spake Albert Knutsson (albert.knutsson at desy.de):

> Same question about CMS_2012_I1107658 (UE in DY), which I mailed to
> the Rivet forum in July.

we did indeed miss that one -- it fell into the MCnet school and then
got lost in the inboxes ... Sorry!

I had a look yesterday and today, and I'm giving up. Can you please ask
the author to check the following things:

- const FinalState& fs = zfinder.constituentsFinalState();
  => There is no "constituentsFinalState()" in the ZFinder,
  so the code doesn't compile.

- if (zfinder.particles().size() != 1) vetoEvent;
  Typically, a Z will decay into two fermions, so this cut
  will veto *all* events.

- double _Zmass = zfinder.particles()[0].momentum().mass()/GeV;
  This is not the Z mass, but the mass of one of the muons the
  Z decayed to. Same for _Zpt and _Zphi.

- The average pT distributions can be filled directly into a
  Profile1D, rather than having 50 lines of code with a manual
  bin-by-bin division in the finalize() method.

- Can the scale(..., 1./integral(...)) lines be replaced by a
  normalize()?

Thanks a lot, and sorry again for the super-late reply!!!

   Hendrik

-- 
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