MET EE noise mitigation in 2017 data

[eioannou]

This Pull Request includes the recipe which was created for the EE noise mitigation in 2017 data. It removes bad pf candidates clustered to jets by adding new modules for fix EE in MET tool. It adds the fixEE2017 and fixEE2017Params parameters to MET tool.

This recipe creates a new pfcandidates collection which does not include the lower pt jets in the high-eta endcap region which are mostly affected by EE noise. It removes all jets and associated PF candidates with pt<50 GeV and 2.65 <|eta| < 3.139 before calculating MET.

More details of the recipe can be found here: https://indico.cern.ch/event/759372/contributions/3149378/attachments/1721436/2802416/metreport.pdf

cc: @peruzzim

[cmsbuild]

The code-checks are being triggered in jenkins.

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-24876/6842

[cmsbuild]

The code-checks are being triggered in jenkins.

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-24876/6916

[cmsbuild]

Pull request #24876 was updated. @perrotta, @monttj, @cmsbuild, @slava77, @gpetruc, @arizzi can you please check and sign again.

[perrotta]

@cmsbuild please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/31170/console Started: 2018/10/19 16:29

[cmsbuild]

+1
Tested at: 0747ea4
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-24876/31170/summary.html

[cmsbuild]

Comparison job queued.

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-24876/31170/summary.html

Comparison Summary:

• No significant changes to the logs found
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 32
• DQMHistoTests: Total histograms compared: 2994843
• DQMHistoTests: Total failures: 1
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 2994645
• DQMHistoTests: Total skipped: 197
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 31 files compared)
• Checked 134 log files, 14 edm output root files, 32 DQM output files

[perrotta]

+1

• By using the default parameters in PhysicsTools/PatUtils/python/tools/runMETCorrectionsAndUncertainties.py the newly added filter is disabled, and therefore no effect can be propagated to the standard workflows (and no effect is seen in the results of the jenkins tests, in fact): as such the pull request can be merged without modifying the default behaviour, and it is therefore suitable for being backported.
• By setting by hand the flag to true I could verify the effect in the miniAOD output on a TTbar sample (it was wf 11624, TTbar MC in 2019 configuration: the one that I had at hand). For example:
  .
  • The flag can be switched on in analyses or in some possible dedicated re-miniAOD campaign

[fabiocos]

+1

[fabiocos]

merge