Cosmics pMin and Strip Clusters threshold DQM (BP to 15_1_X)

[alaperto]

PR description:

These threshold changes are related to Cosmics tracks reconstruction in DQM GUI.

Since 2025D, after HV raise in Strip TEC (23 July), there is an excess of noise clusters in TEC, generating a large number of fake tracks reconstructed (low pT) with respect to reference (blue): https://tinyurl.com/4twf29xb

Actions:

• Update Error Threshold value on Number of Strip Clusters in DQM GUI Tracking Summary (from 200 to 800) as real threshold limit used for track reconstruction was updated to 1000 in PR: Increase threshold of max number of strips clusters for cosmics #47577
• Change pMin filter for Cosmics tracks seeding (with B field ON) from 1 GeV to 4 GeV (same value used by Tracker Alignment), to clean the pT distribution as done on AlcaReco tracks used by Tracker Alignment: https://tinyurl.com/2b2nqne4
• Change Threshold on Number of Strip Clusters that prevents Track reconstruction in Cosmics inside Strip DQM client, from 450 to 1000, as in 2025 we often reach 450 clusters, i.e. run 395610 with 600 Strip clusters: https://tinyurl.com/22jbxzrq

PR validation:

Simply changed 4 threshold values.

Backport

This is a Backport to 15_1_X of PR #48848

[cmsbuild]

@alaperto, CMSSW_15_1_X branch is closed for direct updates. cms-bot is going to move this PR to master branch.
In future, please use cmssw master branch to submit your changes.

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-48849/45988

• There are other open Pull requests which might conflict with changes you have proposed:
  • File DQM/Integration/python/clients/sistrip_dqm_sourceclient-live_cfg.py modified in PR(s): Remove the configuration of the legacy CUDA workflows #46076

[cmsbuild]

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

It involves the following packages:

• DQM/Integration (dqm)
• DQM/TrackingMonitorClient (dqm)
• RecoTracker/SpecialSeedGenerators (reconstruction)

@antoniovagnerini, @cmsbuild, @ctarricone, @jfernan2, @mandrenguyen, @rseidita can you please review it and eventually sign? Thanks.
@GiacomoSguazzoni, @VinInn, @VourMa, @arossi83, @batinkov, @dgulhan, @felicepantaleo, @fioriNTU, @francescobrivio, @gpetruc, @idebruyn, @jandrea, @missirol, @mmusich, @mtosi, @richa2710, @rovere, @sroychow, @threus this is something you requested to watch as well.
@ftenchini, @mandrenguyen, @sextonkennedy you are the release manager for this.

cms-bot commands are listed here

[jfernan2]

please test

[mmusich]

hold

• Cosmics pMin and Strip Clusters threshold DQM #48848 (comment) needs some resolution

[cmsbuild]

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

[cmsbuild]

+1

Size: This PR adds an extra 16KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-02c419/48036/summary.html
COMMIT: 72f0135
CMSSW: CMSSW_15_1_X_2025-09-09-1100/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/48849/48036/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially removed 2 lines from the logs
• Reco comparison results: 0 differences found in the comparisons
• DQMHistoTests: Total files compared: 52
• DQMHistoTests: Total histograms compared: 4345076
• DQMHistoTests: Total failures: 79
• DQMHistoTests: Total nulls: 2
• DQMHistoTests: Total successes: 4344975
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 51 files compared)
• Checked 223 log files, 194 edm output root files, 52 DQM output files
• TriggerResults: no differences found

[cmsbuild]

Milestone for this pull request has been moved to CMSSW_16_0_X. Please open a backport if it should also go in to CMSSW_15_1_X.