update a vertex smearing parameters for 2025 pO MC

[ashleyahram]

PR description:

• This PR adds a vertex smearing for 2025 pO MC. Beamspot position derived from runs 393975 to 394007, BPIX barycentre location obtained from TrackerAlignment_PCL_byRun_v2_express, official BPIX value was provided by Tracker Alignment Group (cmsTalk)

PR validation:

• This PR has been modeled after similar PRs from 2022, 2023, and 2024: Vertex smearing for PbPb MC based on 2022 PbPb data #40496, Vertex smearing for PbPb MC based on 2023 PbPb data #43217, update a vertex smearing parameters for 2024 pp ref MC #46639, update a vertex smearing parameters for 2024 PbPb MC #46723

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:

• We will need a backport for CMSSW_15_0_X

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-48480/45407

[cmsbuild]

A new Pull Request was created by @ashleyahram for master.

It involves the following packages:

• Configuration/StandardSequences (operations)
• IOMC/EventVertexGenerators (simulation)

@antoniovilela, @civanch, @cmsbuild, @davidlange6, @fabiocos, @kpedro88, @mandrenguyen, @mdhildreth, @rappoccio can you please review it and eventually sign? Thanks.
@GiacomoSguazzoni, @Martin-Grunewald, @VinInn, @VourMa, @dgulhan, @fabiocos, @felicepantaleo, @grzanka, @makortel, @missirol, @mmusich, @mtosi, @rovere, @sameasy, @slomeo this is something you requested to watch as well.
@antoniovilela, @mandrenguyen, @rappoccio, @sextonkennedy you are the release manager for this.

cms-bot commands are listed here

[mandrenguyen]

please test

[cmsbuild]

+1

Size: This PR adds an extra 16KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-d6f6e0/47091/summary.html
COMMIT: 2cf7042
CMSSW: CMSSW_15_1_X_2025-07-04-2300/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/48480/47091/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially added 1 lines to the logs
• Reco comparison results: 10 differences found in the comparisons
• DQMHistoTests: Total files compared: 50
• DQMHistoTests: Total histograms compared: 4067195
• DQMHistoTests: Total failures: 30
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 4067145
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 49 files compared)
• Checked 215 log files, 184 edm output root files, 50 DQM output files
• TriggerResults: no differences found

[civanch]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @rappoccio, @antoniovilela, @sextonkennedy, @mandrenguyen (and backports should be raised in the release meeting by the corresponding L2)

[mandrenguyen]

+1