Cosmics Strip Clusters thresholds DQM

[alaperto]

PR description:

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

Since July era 2025D, after HV raise in Strip TEC, there is an excess of noise clusters in TEC, generating a large number of fake cosmics tracks reconstructed (low pT) with respect to reference (blue): https://cern.ch/fmgdm

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 Threshold on Number of Strip Clusters that prevents Track reconstruction in Cosmics inside Pixel and Strip DQM client, from 450 to 1000, as in 2025 the value often reach 450 clusters, i.e. run 395610 with 600 Strip clusters: https://cern.ch/jdn4h
• Increase threshold on number of Hits on Cosmics track from default 5 to 8 (same value used by Tracker Alignment), to exclude tracks with 5 Hits (fake tracks, low pT): https://cern.ch/yxspq

PR validation:

Tested producing DQM .root file on 2000 events, observed reduction of low pT tracks (from 50 to 15) with < 8 hits.

cmsRun DQM/Integration/python/clients/sistrip_dqm_sourceclient-live_cfg.py dataset=/Cosmics/Run2025G-v1/RAW runNumber=398506 runkey=cosmic_run

Backport

This PR is intended for 2025 (cosmics) data taking.
Corresponding Backport to 15_1_X: #49246

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-49302/46664

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

@cmsbuild, @ctarricone, @gabrielmscampos, @nothingface0, @rseidita can you please review it and eventually sign? Thanks.
@VinInn, @VourMa, @arossi83, @batinkov, @elusian, @fioriNTU, @francescobrivio, @idebruyn, @jandrea, @mmasciov, @mmusich, @mtosi, @richa2710, @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

[gabrielmscampos]

test parameters:

• addpkg = DQM/Integration

[gabrielmscampos]

please test

[cmsbuild]

+1

Size: This PR adds an extra 20KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-cd3cef/49230/summary.html
COMMIT: cacc922
CMSSW: CMSSW_16_0_X_2025-11-03-2300/el8_amd64_gcc13
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/49302/49230/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: 6 differences found in the comparisons
• DQMHistoTests: Total files compared: 53
• DQMHistoTests: Total histograms compared: 4172318
• DQMHistoTests: Total failures: 46
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 4172252
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 52 files compared)
• Checked 226 log files, 198 edm output root files, 53 DQM output files
• TriggerResults: no differences found

[gabrielmscampos]

+dqm

[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. @sextonkennedy, @mandrenguyen, @ftenchini (and backports should be raised in the release meeting by the corresponding L2)

[ftenchini]

+1