[Backport 13.0.X] Update Pythia Hook for BB4L

[lauridsj]

PR description:

This PR backports #44061 , an update to the Pythia Hook for the BB4L matrix element generator that is needed for the new version of BB4L.

PR validation:

Original PR was tested to produce the same output as the previous version on the old bb4l version, and to produce the same output as a standalone implementation received from the authors (see original PR).

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:

Backport of #44061 to CMSSW 13_0_X, needed for Run 3 2023 MC production.

[cmsbuild]

A new Pull Request was created by @lauridsj for CMSSW_13_0_X.

It involves the following packages:

• GeneratorInterface/Pythia8Interface (generators)

@bbilin, @GurpreetSinghChahal, @cmsbuild, @SiewYan, @menglu21, @alberto-sanchez, @mkirsano can you please review it and eventually sign? Thanks.
@mkirsano, @alberto-sanchez this is something you requested to watch as well.
@antoniovilela, @rappoccio, @sextonkennedy you are the release manager for this.

cms-bot commands are listed here

[cmsbuild]

cms-bot internal usage

[menglu21]

@cmsbuild please test

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-fc3ab9/38217/summary.html
COMMIT: d1dea98
CMSSW: CMSSW_13_0_X_2024-03-17-0000/el8_amd64_gcc11
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/44421/38217/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially removed 177 lines from the logs
• Reco comparison results: 7 differences found in the comparisons
• DQMHistoTests: Total files compared: 49
• DQMHistoTests: Total histograms compared: 3283620
• DQMHistoTests: Total failures: 3
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3283595
• 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

[menglu21]

+1

[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_14_1_X is complete. This pull request will now be reviewed by the release team before it's merged. @antoniovilela, @rappoccio, @sextonkennedy (and backports should be raised in the release meeting by the corresponding L2)

[rappoccio]

hold

• This looks like a major change so will need to be discussed at the ORP meeting and signed off by PPD.

[cmsbuild]

Pull request has been put on hold by @rappoccio
They need to issue an unhold command to remove the hold state or L1 can unhold it for all

[menglu21]

@jordan-martins @malbouis could you please have a look

[menglu21]

@jordan-martins @malbouis thanks for merging the10_6_X one, could you please also signoff this pr

[jordan-martins]

Hi @cms-sw/orp-l2, we @cms-sw/ppd-l2 sign this off.
Best,
PPD

[antoniovilela]

unhold

[antoniovilela]

+1

[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_14_1_X is complete. This pull request will be automatically merged.