[Backport 13_1_X] Fix EmissionVetoHook for BB4L

[lauridsj]

PR description:

Backport of #42264 (fixing the Pythia FSR hook for bb4l) to CMSSW 13_1_X, as requested by @perrotta.

PR validation:

See #42264.

If this PR is a backport please specify the original PR and why you need to backport that PR. If this PR will be backported please specify to which release cycle the backport is meant for:

See above: Backport of #42264 to CMSSW 13_1_X.

[cmsbuild]

A new Pull Request was created by @lauridsj (Laurids Jeppe) for CMSSW_13_1_X.

It involves the following packages:

• GeneratorInterface/Pythia8Interface (generators)

@SiewYan, @mkirsano, @Saptaparna, @cmsbuild, @alberto-sanchez, @menglu21, @GurpreetSinghChahal can you please review it and eventually sign? Thanks.
@alberto-sanchez, @mkirsano 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 EmissionVetoHook for BB4L #42264

[perrotta]

backport of #42264

[perrotta]

please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-c347fd/34007/summary.html
COMMIT: abd6ebb
CMSSW: CMSSW_13_1_X_2023-07-31-2300/el8_amd64_gcc11
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/42434/34007/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially removed 9 lines from the logs
• Reco comparison results: 5 differences found in the comparisons
• DQMHistoTests: Total files compared: 48
• DQMHistoTests: Total histograms compared: 3186945
• DQMHistoTests: Total failures: 6
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3186917
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 47 files compared)
• Checked 207 log files, 159 edm output root files, 48 DQM output files
• TriggerResults: no differences found

[perrotta]

+1

• Identical to the PRs already signed in the other release cycles

[perrotta]

merge