Lowered cluster charge threshold for pixel L1

[ferencek]

PR description:

This PR lowers the cluster charge threshold in pixel layer 1 from 4000 to 2000 electrons for era Run3_2025. The change is motivated by results presented in https://indico.cern.ch/event/1492109/#118-radiation-damage-projectio during the January 2025 Tracker Week. While the mentioned change is undergoing TSG and the tracking POG validation, this PR is being created to already start its validation. More info about the ongoing validation will be added here as it become available.

PR validation:

Only configuration-level changes so made sure that scram b works and checked that the correct changes are picked up in the following example cmsDriver commands

cmsDriver.py SingleMuPt10_pythia8_cfi -s GEN,SIM,DIGI,L1,DIGI2RAW,RAW2DIGI,RECO --python_filename=test_2025.py -n 100 --no_exec --era Run3_2025 --nThreads=4 --conditions auto:phase1_2024_realistic

cmsDriver.py SingleMuPt10_pythia8_cfi -s GEN,SIM,DIGI,L1,DIGI2RAW,RAW2DIGI,RECO --python_filename=test_Alpaka_2025.py -n 100 --no_exec --era Run3_2025 --nThreads=4 --conditions auto:phase1_2024_realistic --procModifiers alpaka

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 to CMSSW_15_0_X for 2025 data taking will be needed.

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-47480/43926

• There are other open Pull requests which might conflict with changes you have proposed:
  • File Configuration/Eras/python/Era_Run3_2025_cff.py modified in PR(s): Add era modifiers for ScoutingNano to account for changes in 2022-24 and beginning of 2025 #47302, Include CICADA v2.2.0 configuration as modification to 2025 L1T Era #47423
  • File RecoLocalTracker/SiPixelClusterizer/python/siPixelClustersPreSplitting_cff.py modified in PR(s): Remove the configuration of the legacy CUDA workflows #46076

[cmsbuild]

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

It involves the following packages:

• Configuration/Eras (operations)
• RecoLocalTracker/SiPixelClusterizer (reconstruction)

@antoniovilela, @cmsbuild, @davidlange6, @fabiocos, @jfernan2, @mandrenguyen, @rappoccio can you please review it and eventually sign? Thanks.
@GiacomoSguazzoni, @Martin-Grunewald, @VinInn, @VourMa, @dkotlins, @fabiocos, @felicepantaleo, @ferencek, @gpetruc, @makortel, @missirol, @mmusich, @mroguljic, @mtosi, @rovere, @threus, @tsusa, @tvami 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

[ferencek]

I wasn't sure if run3_SiPixel_2025 should also be added to Configuration/StandardSequences/python/Eras.py

[mmusich]

@cmsbuild, please test

[mmusich]

I wasn't sure if run3_SiPixel_2025 should also be added to Configuration/StandardSequences/python/Eras.py

I think you should.

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-47480/43946

• There are other open Pull requests which might conflict with changes you have proposed:
  • File Configuration/Eras/python/Era_Run3_2025_cff.py modified in PR(s): Add era modifiers for ScoutingNano to account for changes in 2022-24 and beginning of 2025 #47302, Include CICADA v2.2.0 configuration as modification to 2025 L1T Era #47423
  • File Configuration/StandardSequences/python/Eras.py modified in PR(s): update on strip approximate cluster #47367
  • File RecoLocalTracker/SiPixelClusterizer/python/siPixelClustersPreSplitting_cff.py modified in PR(s): Remove the configuration of the legacy CUDA workflows #46076

[cmsbuild]

Pull request #47480 was updated. @antoniovilela, @cmsbuild, @davidlange6, @fabiocos, @jfernan2, @mandrenguyen, @rappoccio can you please check and sign again.

[jfernan2]

enable profiling

[jfernan2]

please test

[ferencek]

hold @ferencek looks like a conflict popped up. Can you have a look please?

Rebased to CMSSW_15_1_X_2025-03-14-1100. Should be ok now.

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-47480/44096

• There are other open Pull requests which might conflict with changes you have proposed:
  • File Configuration/Eras/python/Era_Run3_2025_cff.py modified in PR(s): Add era modifiers for ScoutingNano to account for changes in 2022-24 and beginning of 2025 #47302
  • File Configuration/StandardSequences/python/Eras.py modified in PR(s): update on strip approximate cluster #47367
  • File RecoLocalTracker/SiPixelClusterizer/python/siPixelClustersPreSplitting_cff.py modified in PR(s): Remove the configuration of the legacy CUDA workflows #46076

[cmsbuild]

Pull request #47480 was updated. @antoniovilela, @cmsbuild, @davidlange6, @fabiocos, @kskovpen, @mandrenguyen, @mmasciov, @rappoccio can you please check and sign again.

[mmusich]

@cmsbuild, please test

[mmusich]

@cms-sw/tracking-pog-l2 please sign again
@mandrenguyen please unhold

[mandrenguyen]

unhold
thanks for the ping @mmusich

[mmasciov]

+1

[cmsbuild]

+1

Size: This PR adds an extra 16KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-e411fd/44998/summary.html
COMMIT: 60ff529
CMSSW: CMSSW_15_1_X_2025-03-16-2300/el8_amd64_gcc12
Additional Tests: PROFILING
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/47480/44998/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially added 7 lines to the logs
• Reco comparison results: 1978 differences found in the comparisons
• DQMHistoTests: Total files compared: 50
• DQMHistoTests: Total histograms compared: 3927607
• DQMHistoTests: Total failures: 6974
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3920613
• 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

[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 be automatically merged.