AliceO2Group/O2Physics
Aug 2025 – Mar 2026
2 Months active
Languages Used
C++
Technical Skills
C++ DevelopmentFull Stack DevelopmentPhysics SimulationC++QA testingdata analysis
Kegang Xiong
PROFILE
Kegang Xiong
Kegang worked on the AliceO2Group/O2Physics repository, delivering two features over two months focused on particle identification and energy analysis workflows. He implemented a configurable strict mode for Particle Identification, introducing the cfgUseStrictPID option to enable more stringent selection logic and refactored cross-track identification handling to improve numerical stability in C++. Later, he developed a ZDC Energy Analysis Workflow with integrated QA enhancements, enabling detailed event selection, energy histogram generation, and improved data validation. His work demonstrated skills in C++ development, scientific computing, and QA testing, emphasizing maintainable code and robust validation pathways without addressing major bug fixes during this period.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
2
Lines of code
332
Activity Months2
Your Network
139 peopleShared Repositories
139
Work History
March 2026
2 Commits • 1 Features
Mar 1, 2026March 2026 (2026-03) — Delivered ZDC Energy Analysis Workflow with QA Enhancements in O2Physics, enabling detailed event selection, energy histogram generation, and integrated QA plots. Updated event selection configurations to improve event counting accuracy and data validation. This work improves data quality for ZDC analyses, accelerates QA feedback, and strengthens maintainability through clear commit traceability (PWGCF references).
2 Commits • 1 Features
Mar 1, 2026March 2026 (2026-03) — Delivered ZDC Energy Analysis Workflow with QA Enhancements in O2Physics, enabling detailed event selection, energy histogram generation, and integrated QA plots. Updated event selection configurations to improve event counting accuracy and data validation. This work improves data quality for ZDC analyses, accelerates QA feedback, and strengthens maintainability through clear commit traceability (PWGCF references).
March 2026
August 2025
1 Commits • 1 Features
Aug 1, 2025Summary for 2025-08: Implemented a configurable Strict Mode for Particle Identification (PID) in O2Physics, introducing the cfgUseStrictPID option to enable a more stringent PID strategy. The change refactors cross-track identification handling and adds a small non-zero epsilon to prevent numerical issues, with logic to either exit early when strict PID cannot uniquely identify a particle or proceed with the existing lowest-n-sigma selection when strict mode is disabled. No major defects fixed this month; effort focused on feature delivery, code quality, and maintainability.
August 2025
1 Commits • 1 Features
Aug 1, 2025Summary for 2025-08: Implemented a configurable Strict Mode for Particle Identification (PID) in O2Physics, introducing the cfgUseStrictPID option to enable a more stringent PID strategy. The change refactors cross-track identification handling and adds a small non-zero epsilon to prevent numerical issues, with logic to either exit early when strict PID cannot uniquely identify a particle or proceed with the existing lowest-n-sigma selection when strict mode is disabled. No major defects fixed this month; effort focused on feature delivery, code quality, and maintainability.
Activity
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Quality Metrics
Correctness80.0%
Maintainability80.0%
Architecture80.0%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++
Technical Skills
C++C++ DevelopmentFull Stack DevelopmentPhysics SimulationQA testingdata analysisevent-driven programmingscientific computing
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