keep muon parents (80X backport)

[gpetruc]

Backport of #14384

Would be useful to have for the new MC production

@arizzi @kskovpen @ferencek

[cmsbuild]

A new Pull Request was created by @gpetruc (Giovanni Petrucciani) for CMSSW_8_0_X.

It involves the following packages:

PhysicsTools/PatAlgos

@cmsbuild, @cvuosalo, @slava77, @monttj, @davidlange6 can you please review it and eventually sign? Thanks.
@TaiSakuma, @imarches, @ahinzmann, @acaudron, @mmarionncern, @rappoccio, @jdolen, @nhanvtran, @JyothsnaKomaragiri, @gkasieczka, @schoef, @ferencek, @mverzett, @mariadalfonso, @pvmulder this is something you requested to watch as well.
@slava77, @smuzaffar you are the release manager for this.

cms-bot commands are list here #13028

[kskovpen]

Thanks a lot, Giovanni !

Le 6 sept. 2016 à 11:30, Giovanni Petrucciani notifications@github.com a écrit :

Backport of #14384 #14384
Would be useful to have for the new MC production

@arizzi https://github.com/arizzi @kskovpen https://github.com/kskovpen @ferencek https://github.com/ferencek
You can view, comment on, or merge this pull request online at:

#15742 #15742
Commit Summary

keep muon parents
File Changes

M PhysicsTools/PatAlgos/python/slimming/prunedGenParticles_cfi.py https://github.com/cms-sw/cmssw/pull/15742/files#diff-0 (1)
Patch Links:

https://github.com/cms-sw/cmssw/pull/15742.patch https://github.com/cms-sw/cmssw/pull/15742.patch
https://github.com/cms-sw/cmssw/pull/15742.diff https://github.com/cms-sw/cmssw/pull/15742.diff
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[slava77]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/14966/console

[cmsbuild]

+1
Tested at: d1f82fd
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-15742/14966/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-15742/14966/summary.html

[slava77]

+1

for #15742 d1f82fd

• changes are in line with the description. The same change as in 81X PR Keep muon parents in prunedGenParticles collection #14384 merged in May
• jenkins tests pass and comparisons with baseline show no differences.
  • additional candidates are fairly rare in tested workflows and would not affect DQM plots. See 81X PR for expected changes in muon enriched samples