AliceO2Group/O2Physics
Jan 2026 – Jun 2026
6 Months active
Languages Used
C++
Technical Skills
C++ programmingdata analysishigh energy physicsscientific computingC++Data Analysis
gengjiabin12
PROFILE
Gengjiabin12
Over six months, contributed to the AliceO2Group/O2Physics repository by developing and refining features for high energy physics analysis, focusing on particle correlation workflows. Built multidimensional efficiency corrections and mass-based histogramming to improve analysis accuracy, and introduced buffer-based event mixing for scalable data processing. Enhanced Monte Carlo event selection through configurable criteria, and implemented robust collision and particle filtering using C++ and scientific computing techniques. Addressed bugs in histogram filling and efficiency handling, ensuring data-model consistency and reliable results. Demonstrated strengths in C++ programming, data analysis, and collaborative code review, delivering maintainable solutions that support reproducible, high-fidelity physics research.
Overall Statistics
Feature vs Bugs
63%Features
Repository Contributions
9Total
Bugs
3
Commits
9
Features
5
Lines of code
1,098
Activity Months6
Your Network
145 peopleWork History
June 2026
2 Commits • 1 Features
Jun 1, 2026June 2026 - AliceO2Group/O2Physics: Focused on reliability and flexibility of Strange particle correlation analyses. Delivered a bug fix for hStrangeCorrelation histogram filling, ensuring correct handling of multidimensional inputs and phi when efficiency flags are enabled, aligning histogram definitions with the data. Also added mass-based histogramming support for correlation analyses, with updated filtering cuts for V0 and cascade tracks based on ITS cluster requirements and refined event mixing; correlation configuration updated to support mass-based histograms. These changes improve data-model consistency, enable mass-dependent physics studies, and strengthen analysis robustness and reproducibility.
2 Commits • 1 Features
Jun 1, 2026June 2026 - AliceO2Group/O2Physics: Focused on reliability and flexibility of Strange particle correlation analyses. Delivered a bug fix for hStrangeCorrelation histogram filling, ensuring correct handling of multidimensional inputs and phi when efficiency flags are enabled, aligning histogram definitions with the data. Also added mass-based histogramming support for correlation analyses, with updated filtering cuts for V0 and cascade tracks based on ITS cluster requirements and refined event mixing; correlation configuration updated to support mass-based histograms. These changes improve data-model consistency, enable mass-dependent physics studies, and strengthen analysis robustness and reproducibility.
June 2026
May 2026
1 Commits
May 1, 2026May 2026 monthly summary for AliceO2Group/O2Physics focusing on a targeted bug fix in particle efficiency handling within HStrangeCorrelation, improving the accuracy of correlation analyses and data quality for physics results. Demonstrated robust debugging, code inspection, and collaboration with PWGLF workflows; all changes landed in a single commit and ready for QA and integration.
May 2026
1 Commits
May 1, 2026May 2026 monthly summary for AliceO2Group/O2Physics focusing on a targeted bug fix in particle efficiency handling within HStrangeCorrelation, improving the accuracy of correlation analyses and data quality for physics results. Demonstrated robust debugging, code inspection, and collaboration with PWGLF workflows; all changes landed in a single commit and ready for QA and integration.
April 2026
3 Commits • 1 Features
Apr 1, 2026April 2026 – AliceO2Group/O2Physics: Delivered configurable pbpb collision selection switches and filters to improve event filtering, and fixed robustness issues in HStrangeCorrelation to ensure correct event processing.
3 Commits • 1 Features
Apr 1, 2026April 2026 – AliceO2Group/O2Physics: Delivered configurable pbpb collision selection switches and filters to improve event filtering, and fixed robustness issues in HStrangeCorrelation to ensure correct event processing.
April 2026
March 2026
1 Commits • 1 Features
Mar 1, 2026Month: 2026-03 — AliceO2Group/O2Physics monthly summary. Delivered a Monte Carlo Event Selection Enhancement by adding a configurable option to apply a new selection criterion for MC-generated events, improving the fidelity and consistency of MC analyses. No major bugs fixed this month. Impact: tighter MC event selection supports more accurate physics results and smoother downstream analyses, aligning with PWGLF workflows. Technologies/skills demonstrated: C++ configuration-driven development, Git-based collaboration and change management, code review, and traceable commits.
March 2026
1 Commits • 1 Features
Mar 1, 2026Month: 2026-03 — AliceO2Group/O2Physics monthly summary. Delivered a Monte Carlo Event Selection Enhancement by adding a configurable option to apply a new selection criterion for MC-generated events, improving the fidelity and consistency of MC analyses. No major bugs fixed this month. Impact: tighter MC event selection supports more accurate physics results and smoother downstream analyses, aligning with PWGLF workflows. Technologies/skills demonstrated: C++ configuration-driven development, Git-based collaboration and change management, code review, and traceable commits.
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026 — AliceO2Group/O2Physics: Delivered Buffered Mixed-Event Processing to improve correlation analysis. Implemented event mixing in a dedicated buffer, enabling more accurate correlations in particle collision analyses and smoother handling of larger datasets. This feature, tracked under commit d21d2987331afa2ec08d887558f0fc76495df0cb ([PWGLF] Mixing Event in buffer (#15163)), lays groundwork for performance gains and scalable analysis pipelines. No major bug fixes reported this month; effort focused on feature delivery, code quality, and collaborative integration. Overall impact includes improved analytics fidelity, reduced memory churn during event mixing, and clearer separation between data preparation and analysis steps. Technologies demonstrated include buffer-based processing, event-mixing algorithms, and Git-based traceability within PWGLF.
1 Commits • 1 Features
Feb 1, 2026February 2026 — AliceO2Group/O2Physics: Delivered Buffered Mixed-Event Processing to improve correlation analysis. Implemented event mixing in a dedicated buffer, enabling more accurate correlations in particle collision analyses and smoother handling of larger datasets. This feature, tracked under commit d21d2987331afa2ec08d887558f0fc76495df0cb ([PWGLF] Mixing Event in buffer (#15163)), lays groundwork for performance gains and scalable analysis pipelines. No major bug fixes reported this month; effort focused on feature delivery, code quality, and collaborative integration. Overall impact includes improved analytics fidelity, reduced memory churn during event mixing, and clearer separation between data preparation and analysis steps. Technologies demonstrated include buffer-based processing, event-mixing algorithms, and Git-based traceability within PWGLF.
February 2026
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for AliceO2Group/O2Physics. Focused on feature delivery to improve analysis accuracy and robustness via multidimensional efficiency corrections for HStrangeCorrelation, along with a refactor to simplify correction configuration. No major bugs fixed this month; the work emphasized quality, integration readiness, and impact on end-to-end physics analyses.
January 2026
1 Commits • 1 Features
Jan 1, 2026January 2026 monthly summary for AliceO2Group/O2Physics. Focused on feature delivery to improve analysis accuracy and robustness via multidimensional efficiency corrections for HStrangeCorrelation, along with a refactor to simplify correction configuration. No major bugs fixed this month; the work emphasized quality, integration readiness, and impact on end-to-end physics analyses.
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Quality Metrics
Correctness82.2%
Maintainability80.0%
Architecture80.0%
Performance80.0%
AI Usage31.2%
Skills & Technologies
Programming Languages
C++
Technical Skills
C++C++ programmingData AnalysisData ProcessingEvent ProcessingHigh Energy PhysicsHigh Energy Physics AnalysisPhysics Simulationdata analysishigh energy physicsparticle physicsscientific computing
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