Fix provenance of electrons

[beaudett]

Hello

as requested by Lindsey & Daniele, fixed the transmission of the provenance from the PFlow to the GsfElectron (variable MvaOutput.status) The change has been implemented in the producer previously called "PFIsolationFiller" which has been renamed into GEDGsfElectronFinalizer.
For the time being, the provenance is recomputed by checking the presence of the PFCandidate of type electron with the same GsfTrack. In the future, more information could be provided through the status flag of the PFEgammaExtra. When it is done, the present code will just keep it and no longer recompute it.

F.

[cmsbuild]

A new Pull Request was created by @beaudett (Florian Beaudette) for CMSSW_7_1_X.

Fix provenance of electrons

It involves the following packages:

RecoEgamma/EgammaElectronProducers

@nclopezo, @cmsbuild, @anton-a, @thspeer, @slava77, @Degano can you please review it and eventually sign? Thanks.
You can sign-off by replying to this message having '+1' in the first line of your reply.
You can reject by replying to this message having '-1' in the first line of your reply.
@nclopezo, @ktf you are the release manager for this.
You can merge this pull request by typing 'merge' in the first line of your comment.

[cmsbuild]

+1
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-2890/550/summary.html

[anton-a]

checking...

[anton-a]

I was doing the test mostly to check the timing, but observed some small differences. They have little effect, but I would like to understand the mechanism. Obviously the classification has changed. Probably the rest follows from there. THe plots below are from ttbar+PU.

[beaudett]

Hello,

the change in the classification is indeed expected to change a little the momentum of the electrons... but what I don't understand is that the change in the classification is in an other PR.
#2872

F.

[anton-a]

Yes... that is exactly what I thought. Is it essential for this PR that #2872 is already applied?

[beaudett]

Hello Anton,

no, the two PR are independent.
Hope it helps,
Florian

[anton-a]

Then it is strange...
I can try merging against an IB that already has 2872.

[beaudett]

Hello Anton,
I checked and it is seems that because I am still far from mastering git, I included in this branch the fix of the provenance. That's explains the differences you are observing.
I hope it is not going to make the merging difficult.

Cheers,
Florian

[slava77]

+1

#2890 55d98cf
tested in CMSSW_7_1_X_2014-04-02-0200 (test area sign335).
No differences observed in monitored quantities
The diff reported earlier has apparently gone away after the fix of the provenance went to the IB

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_1_X IBs unless changes (tests are also fine). @nclopezo, @ktf can you please take care of it?