Zero field collision vertexing

[adfrawley]

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work for users)
• [ ] Requiring change in macros repository (Please provide links to the macros pull request in the last section)
• [x] I am a member of GitHub organization of sPHENIX Collaboration, EIC, or ECCE (contact Chris Pinkenburg to join)

What kind of change does this PR introduce? (Bug fix, feature, ...)

Add the ability to PHSimpleVertexFinder to find collision vertices for zero field data. Finds SvtxTracks on the node tree. Gets the clusters for the silicon seed (if existing). Gets the clusters for the TPC seed (if existing). Fits all the found clusters with a straight line. Calculates PCA for all pairs of straight line tracks in the track map, and selects close matches. Then runs the same vertex finding procedure as for field on tracks. The zero field option is enabled by setting a flag in the macro (default is false): finder->zeroField(true);

TODOs (if applicable)

Links to other PRs in macros and calibration repositories (if applicable)

[sphenix-jenkins-ci[bot]]

Build & test report

Report for commit b85f848f31ab683810de250a38500e6c6303c98e:

• builds and tests overall are SUCCESS.
• Build with configuration of gcc-12.1.0 / clang is SUCCESS, :bar_chart:clang report (full)/(new), build log
• Build with configuration of gcc-12.1.0 / new is SUCCESS, :bar_chart:Compiler report (full)/(new), build log
  • Generating DST and readback: build is SUCCESS
  • Calorimeter QA: build is SUCCESS, :bar_chart: trends
  • :bar_chart: QA-calorimeter for e- at p_T=4GeV : combined Chi2/nDoF = 34.4216 / 72, and combined p-Value = 0.999949
  • :bar_chart: QA-calorimeter for pi+ at p_T=30GeV : combined Chi2/nDoF = 31.4242 / 72, and combined p-Value = 0.999992
  • :bar_chart: QA-calorimetric-jet for e- at p_T=4GeV : combined Chi2/nDoF = 3.10515 / 42, and combined p-Value = 1
  • :bar_chart: QA-calorimetric-jet for pi+ at p_T=30GeV : combined Chi2/nDoF = 13.6147 / 42, and combined p-Value = 0.99999
  • Tracking QA with Distortions: build is SUCCESS, :bar_chart: trends
  • :bar_chart: QA-distortions
  • Tracking QA at low occupancy: build is SUCCESS, :bar_chart: trends
  • :bar_chart: QA-Intt : combined Chi2/nDoF = -0 / 72, and combined p-Value = 1
  • :bar_chart: QA-Micromegas : combined Chi2/nDoF = -0 / 20, and combined p-Value = 1
  • :bar_chart: QA-Mvtx : combined Chi2/nDoF = -0 / 54, and combined p-Value = 1
  • :bar_chart: QA-Tpc : combined Chi2/nDoF = -0 / 56, and combined p-Value = 1
  • :bar_chart: QA-tracking : combined Chi2/nDoF = -0 / 56, and combined p-Value = 1
  • :bar_chart: QA-vertexing : combined Chi2/nDoF = 30 / 112, and combined p-Value = 1
  • Tracking QA for Pythia D0-jet: build is SUCCESS, :bar_chart: trends
  • :bar_chart: QA-Intt : combined Chi2/nDoF = 184.387 / 72, and combined p-Value = 8.2051e-12
  • :bar_chart: QA-Micromegas : combined Chi2/nDoF = 16.3574 / 20, and combined p-Value = 0.694222
  • :bar_chart: QA-Mvtx : combined Chi2/nDoF = 920.684 / 54, and combined p-Value = 5.44096e-158
  • :bar_chart: QA-Tpc : combined Chi2/nDoF = 76.49 / 56, and combined p-Value = 0.0358004
  • :bar_chart: QA-tracking : combined Chi2/nDoF = 281.26 / 50, and combined p-Value = 5.84636e-34
  • :bar_chart: QA-vertexing : combined Chi2/nDoF = 347.565 / 112, and combined p-Value = 6.12968e-26
  • system gcc-12.1.0, build new: run the default sPHENIX macro: build is SUCCESS, output, trends :bar_chart:
  • system gcc-12.1.0, build new: run the default CaloProduction/Fun4All_Year1.C macro: build is SUCCESS, output, trends :bar_chart:
  • system gcc-12.1.0, build new: run the default CaloProduction/Fun4All_Year2.C macro: build is SUCCESS, output, trends :bar_chart:
  • system gcc-12.1.0, build new: run the default StreamingProduction/Fun4All_Stream_Combiner.C macro: build is SUCCESS, output, trends :bar_chart:
  • system gcc-12.1.0, build new: run the default TrackingProduction/Fun4All_TrkrHitSet_Unpacker.C macro: build is SUCCESS, output, trends :bar_chart:
  • system gcc-12.1.0, build new: Valgrind test of CaloProduction/Fun4All_Year1.C: build is SUCCESS, :bar_chart:valgrind report, trends :bar_chart:
  • system gcc-12.1.0, build new: Valgrind test of CaloProduction/Fun4All_Year2.C: build is SUCCESS, :bar_chart:valgrind report, trends :bar_chart:
  • system gcc-12.1.0, build new: Valgrind test of StreamingProduction/Fun4All_Stream_Combiner.C: build is SUCCESS, :bar_chart:valgrind report, trends :bar_chart:
  • system gcc-12.1.0, build new: Valgrind test of TrackingProduction/Fun4All_TrkrHitSet_Unpacker.C: build is SUCCESS, :bar_chart:valgrind report, trends :bar_chart:
  • system gcc-12.1.0, build new: run the overlap check for sPHENIX macro: build is SUCCESS, output
  • system gcc-12.1.0, build new: Valgrind test: build is SUCCESS, :bar_chart:valgrind report, trends :bar_chart:
• Build with configuration of gcc-12.1.0 / scan is SUCCESS, :bar_chart:scan-build report (full)/(new), build log
• clang-tidy is UNSTABLE, :bar_chart:clang-tidy report (full)/(new)
• cpp-check is SUCCESS, :bar_chart:cppcheck report (full)/(new)

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