sPHENIX-Collaboration/analysis
Jan 2025 – Sep 2025
6 Months active
Languages Used
C++ShellMarkdownROOTBash
Technical Skills
Build SystemsC++C++ DevelopmentData AnalysisDebuggingEvent Processing
Joseph Clement
PROFILE
Joseph Clement
Over six months, Joseph Clark developed and enhanced data analysis modules for the sPHENIX-Collaboration/analysis repository, focusing on jet background rejection, luminosity calculation, and batch processing automation. He engineered configurable C++ modules and shell scripts to improve analysis reliability, integrating robust error handling, parameter-driven configuration, and systematic variation support. His work included overhauling the luminosity pipeline for accuracy and efficiency, implementing Corrected Live Time support, and automating high-throughput job submission. By leveraging C++, ROOT, and Bash, Joseph addressed data integrity, reproducibility, and workflow flexibility, delivering maintainable solutions that streamlined physics data processing and improved the quality of high energy physics analyses.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
44Total
Bugs
3
Commits
44
Features
12
Lines of code
5,449
Activity Months6
Your Network
102 people
Work History
September 2025
6 Commits • 3 Features
Sep 1, 2025September 2025 monthly summary for sPHENIX-Collaboration/analysis: Delivered key luminosity data handling improvements, batch job submission automation, and documentation cleanup. These efforts enhanced data accuracy, processing throughput, and maintainability for luminosity calculations and batch workflows.
6 Commits • 3 Features
Sep 1, 2025September 2025 monthly summary for sPHENIX-Collaboration/analysis: Delivered key luminosity data handling improvements, batch job submission automation, and documentation cleanup. These efforts enhanced data accuracy, processing throughput, and maintainability for luminosity calculations and batch workflows.
September 2025
August 2025
2 Commits • 1 Features
Aug 1, 2025In August 2025, delivered Corrected Live Time (CLT) support for Trigger Counting and Luminosity Calculations in the sPHENIX-Collaboration/analysis repository. Key improvements include live-time checking in trigger counting, an optional 'clt' parameter for luminosity calculations, and CLT-aware file naming that appends _clt when CLT is enabled. These changes enhance measurement accuracy and flexibility for event processing. The work is tracked in commits 3b4c31e2d16069493fcf2750c1da00a3194624ef and b18f0c5c4b46e0c55dc16146d7c48634036d61eb.
August 2025
2 Commits • 1 Features
Aug 1, 2025In August 2025, delivered Corrected Live Time (CLT) support for Trigger Counting and Luminosity Calculations in the sPHENIX-Collaboration/analysis repository. Key improvements include live-time checking in trigger counting, an optional 'clt' parameter for luminosity calculations, and CLT-aware file naming that appends _clt when CLT is enabled. These changes enhance measurement accuracy and flexibility for event processing. The work is tracked in commits 3b4c31e2d16069493fcf2750c1da00a3194624ef and b18f0c5c4b46e0c55dc16146d7c48634036d61eb.
July 2025
3 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for sPHENIX-Collaboration/analysis: Focused on delivering robust luminosity processing and reliable data reporting. Key work included overhauling the luminosity calculation pipeline to consolidate data processing, tree flattening, z-vertex selection, and trigger/live-time handling, resulting in improved accuracy and processing efficiency. Addressed a ROOT file path prefix issue and corrected the segment output indexing to ensure correct data retrieval and accurate high/low raw segment reporting, enhancing analysis reliability. Across these efforts, delivered code changes with notable commits: 4b45485639ed4f3a9b72d15049fd50c3e8bffa1b (major updates), 0bd0bf8116a1e39ce997d6fa5d31eee89ebb4497 (tree flattening updates), adffddacaf19e98e6ae80d47772a83bd1d5556b2 (path/output fix). These changes collectively reduce data inconsistencies, speed up lumi processing, and strengthen data provenance.
3 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for sPHENIX-Collaboration/analysis: Focused on delivering robust luminosity processing and reliable data reporting. Key work included overhauling the luminosity calculation pipeline to consolidate data processing, tree flattening, z-vertex selection, and trigger/live-time handling, resulting in improved accuracy and processing efficiency. Addressed a ROOT file path prefix issue and corrected the segment output indexing to ensure correct data retrieval and accurate high/low raw segment reporting, enhancing analysis reliability. Across these efforts, delivered code changes with notable commits: 4b45485639ed4f3a9b72d15049fd50c3e8bffa1b (major updates), 0bd0bf8116a1e39ce997d6fa5d31eee89ebb4497 (tree flattening updates), adffddacaf19e98e6ae80d47772a83bd1d5556b2 (path/output fix). These changes collectively reduce data inconsistencies, speed up lumi processing, and strengthen data provenance.
July 2025
March 2025
7 Commits • 3 Features
Mar 1, 2025March 2025: Focused on robustness, configurability, and extended pileup/luminosity measurement capabilities in the analysis pipeline. Delivered four core enhancements and fixes that improve data quality, reliability, and deployment flexibility. Key outcomes include: Trigger count enhancements with BCO capture and nbunch counting, safeguards in luminosity calculations to prevent division by zero and invalid prescale usage, improved configuration flexibility for LuminosityCounterGoodRuns analysis script, and refined Treemaking scripts to improve execution context and input/output path handling. These changes reduce runtime errors, improve calculation reliability, and enhance reproducibility and deployment flexibility across workflows.
March 2025
7 Commits • 3 Features
Mar 1, 2025March 2025: Focused on robustness, configurability, and extended pileup/luminosity measurement capabilities in the analysis pipeline. Delivered four core enhancements and fixes that improve data quality, reliability, and deployment flexibility. Key outcomes include: Trigger count enhancements with BCO capture and nbunch counting, safeguards in luminosity calculations to prevent division by zero and invalid prescale usage, improved configuration flexibility for LuminosityCounterGoodRuns analysis script, and refined Treemaking scripts to improve execution context and input/output path handling. These changes reduce runtime errors, improve calculation reliability, and enhance reproducibility and deployment flexibility across workflows.
February 2025
19 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for sPHENIX-Collaboration/analysis: Implemented JetBackgroundCut module with configurable vertex-type support, robust vertex data handling, systematic variation framework, and PHParameters integration; stabilized analysis pipeline with targeted fixes for dPhi cut logic and data checks. Added LuminosityCounterGoodRuns module to process DSTs and generate trigger and luminosity statistics, including flexible runlist handling, executable Condor scripts, and documentation; updated cross-section for luminosity calculation. Completed migration to PHParameters (replacing recoConsts) to improve configurability and reproducibility, accompanied by comprehensive documentation updates and usability improvements.
19 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for sPHENIX-Collaboration/analysis: Implemented JetBackgroundCut module with configurable vertex-type support, robust vertex data handling, systematic variation framework, and PHParameters integration; stabilized analysis pipeline with targeted fixes for dPhi cut logic and data checks. Added LuminosityCounterGoodRuns module to process DSTs and generate trigger and luminosity statistics, including flexible runlist handling, executable Condor scripts, and documentation; updated cross-section for luminosity calculation. Completed migration to PHParameters (replacing recoConsts) to improve configurability and reproducibility, accompanied by comprehensive documentation updates and usability improvements.
February 2025
January 2025
7 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for sPHENIX-Collaboration/analysis. Delivered a new Jet Background Cut Analysis Module to improve fake jet rejection, plus robustness improvements to the Jet Background processing pipeline, and fixed a critical Jet ET calculation bug. The work enhances analysis reliability, reduces false positives, and improves maintainability through configuration-driven modules and build scripts.
January 2025
7 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for sPHENIX-Collaboration/analysis. Delivered a new Jet Background Cut Analysis Module to improve fake jet rejection, plus robustness improvements to the Jet Background processing pipeline, and fixed a critical Jet ET calculation bug. The work enhances analysis reliability, reduces false positives, and improves maintainability through configuration-driven modules and build scripts.
Activity
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Quality Metrics
Correctness82.0%
Maintainability86.0%
Architecture79.8%
Performance75.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
BashC++MarkdownROOTShell
Technical Skills
Batch ProcessingBuild System ConfigurationBuild SystemsC++C++ DevelopmentCode RefactoringConfiguration ManagementData AnalysisData ProcessingData StructuresDebuggingDocumentationError HandlingEvent ProcessingHEP Analysis
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