Backport of fix to NanoGENJets

[Cvico]

Backport of 41163. Description of the original PR can be found below. @swertz suggested that it would be good to have this fix in CMSSW_13_X just in case people compares nanoGEN jets from nanoAODv12 with nanoGEN produced with this release.

PR description
This PR includes a minimal change in the configuration file that is used for producing NanoGEN format: PhysicsTools/NanoAOD/python/nanogen_cff.py.

Additional information
This issue has been known for some time, but it was never fixed and included in the master branch up until know. Everything regarding this issue is discussed in 1 and 2.

[cmsbuild]

A new Pull Request was created by @Cvico (Carlos Vico Villalba) for CMSSW_13_0_X.

It involves the following packages:

• PhysicsTools/NanoAOD (xpog)

@cmsbuild, @simonepigazzini, @swertz, @vlimant can you please review it and eventually sign? Thanks.
@gpetruc, @AnnikaStein this is something you requested to watch as well.
@perrotta, @dpiparo, @rappoccio you are the release manager for this.

cms-bot commands are listed here

• Backported from Fix for nanoGEN jets #41163

[swertz]

please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-8d9eae/31698/summary.html
COMMIT: 982887c
CMSSW: CMSSW_13_0_X_2023-03-30-1100/el8_amd64_gcc11
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/41235/31698/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially added 11 lines to the logs
• Reco comparison results: 10 differences found in the comparisons
• DQMHistoTests: Total files compared: 49
• DQMHistoTests: Total histograms compared: 3554479
• DQMHistoTests: Total failures: 7
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3554450
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 48 files compared)
• Checked 213 log files, 164 edm output root files, 49 DQM output files
• TriggerResults: no differences found

[swertz]

+1

Verbatim backport

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_13_0_X IBs (tests are also fine) and once validation in the development release cycle CMSSW_13_1_X is complete. This pull request will now be reviewed by the release team before it's merged. @perrotta, @dpiparo, @rappoccio (and backports should be raised in the release meeting by the corresponding L2)

[perrotta]

backport of #41163

[perrotta]

+1