AliceO2Group/O2Physics
Oct 2024 – Oct 2025
6 Months active
Languages Used
C++
Technical Skills
Data AnalysisHigh Energy PhysicsSoftware DevelopmentC++Physics AnalysisC++ Development
Bhagyarathi Sahoo
PROFILE
Bhagyarathi Sahoo
Over six months, contributed to the AliceO2Group/O2Physics repository by developing and optimizing C++ workflows for dimuon polarization and MC truth analysis in high energy physics. Delivered features such as rapidity-based and production-plane polarization histograms, enhanced MC truth signal processing, and higher-resolution binning using ROOT for improved data analysis. Focused on performance by refactoring histogram libraries to reduce memory usage and streamline variable management. Addressed critical bugs affecting MC truth flag logic and minitree data integrity, ensuring accurate efficiency measurements. Demonstrated expertise in C++ development, data analysis, and memory management, with a strong emphasis on reproducibility and maintainability.
Overall Statistics
Feature vs Bugs
71%Features
Repository Contributions
8Total
Bugs
2
Commits
8
Features
5
Lines of code
246
Activity Months6
Your Network
478 peopleSame Organization
@cern.ch336
Shared Repositories
142
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Work History
October 2025
1 Commits
Oct 1, 2025Monthly summary for 2025-10 focused on business value and technical achievements for the O2Physics repository. The month centered on stabilizing the PWGDQ data pipeline by fixing a minitree data integrity issue that impacted efficiency measurements, with a targeted code change and clear commit history to support reproducibility.
1 Commits
Oct 1, 2025Monthly summary for 2025-10 focused on business value and technical achievements for the O2Physics repository. The month centered on stabilizing the PWGDQ data pipeline by fixing a minitree data integrity issue that impacted efficiency measurements, with a targeted code change and clear commit history to support reproducibility.
October 2025
September 2025
1 Commits
Sep 1, 2025September 2025 – AliceO2Group/O2Physics: Focused work on stabilizing MC truth generation by correcting McDecision flag handling for two-prong signals. No new features released this month; major effort centered on a targeted bug fix that improves MC truth pair accuracy. Commit 67d38bc66a31036a2a473370a87a9d15c525f76b: [PWGDQ] Fixing McDecision issue for two prong signal (#13142).
September 2025
1 Commits
Sep 1, 2025September 2025 – AliceO2Group/O2Physics: Focused work on stabilizing MC truth generation by correcting McDecision flag handling for two-prong signals. No new features released this month; major effort centered on a targeted bug fix that improves MC truth pair accuracy. Commit 67d38bc66a31036a2a473370a87a9d15c525f76b: [PWGDQ] Fixing McDecision issue for two prong signal (#13142).
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary focusing on memory-usage optimization in O2Physics dimuon-polarization histograms; implemented targeted refactor to remove redundant Rapidity histograms and rely on Pt plots, reducing memory consumption. Changes localized to PWGDQ/Core/HistogramsLibrary.cxx. Commit: 3363702d9808751ebb8397359b3991504390f48b (PR #11730). Result: lower resource usage, enabling larger datasets and faster per-run performance. Skills demonstrated: C++, performance optimization, histogram library design, code locality and maintainability.
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary focusing on memory-usage optimization in O2Physics dimuon-polarization histograms; implemented targeted refactor to remove redundant Rapidity histograms and rely on Pt plots, reducing memory consumption. Changes localized to PWGDQ/Core/HistogramsLibrary.cxx. Commit: 3363702d9808751ebb8397359b3991504390f48b (PR #11730). Result: lower resource usage, enabling larger datasets and faster per-run performance. Skills demonstrated: C++, performance optimization, histogram library design, code locality and maintainability.
June 2025
May 2025
3 Commits • 2 Features
May 1, 2025May 2025 – AliceO2Group/O2Physics: Delivered two major feature enhancements to MC truth analysis and dimuon polarization workflows, with refactoring of histogram definitions and expanded processing for 2-prong muon decay signals. Implemented higher-resolution histogram binning to enable more precise momentum distribution studies. No separate critical bug fixes required this month; improvements focused on analysis fidelity and stability. Result: stronger physics interpretation, faster analysis cycles, and reinforced collaboration with the PWGDQ team. Core technologies demonstrated include ROOT histogram analysis, C++/data-processing pipelines, and rigorous version-controlled development.
May 2025
3 Commits • 2 Features
May 1, 2025May 2025 – AliceO2Group/O2Physics: Delivered two major feature enhancements to MC truth analysis and dimuon polarization workflows, with refactoring of histogram definitions and expanded processing for 2-prong muon decay signals. Implemented higher-resolution histogram binning to enable more precise momentum distribution studies. No separate critical bug fixes required this month; improvements focused on analysis fidelity and stability. Result: stronger physics interpretation, faster analysis cycles, and reinforced collaboration with the PWGDQ team. Core technologies demonstrated include ROOT histogram analysis, C++/data-processing pipelines, and rigorous version-controlled development.
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary focusing on key accomplishments and impact for AliceO2Group/O2Physics. This month delivered the polarization analysis capability in the production plane, enabling polarization-dependent studies in pp collisions. Key evolution includes new histograms and variables added to VarManager, and integration into HistogramsLibrary to support end-to-end analysis.
1 Commits • 1 Features
Apr 1, 2025April 2025 monthly summary focusing on key accomplishments and impact for AliceO2Group/O2Physics. This month delivered the polarization analysis capability in the production plane, enabling polarization-dependent studies in pp collisions. Key evolution includes new histograms and variables added to VarManager, and integration into HistogramsLibrary to support end-to-end analysis.
April 2025
October 2024
1 Commits • 1 Features
Oct 1, 2024Monthly summary for 2024-10 (AliceO2Group/O2Physics) highlighting the feature delivery to enable rapidity-based dimuon polarization analysis in HE and CS regions, with no major bugs fixed reported this month. The primary work focused on updating the histograms infrastructure to treat rapidity as a polarization variable, enabling physics studies as a function of rapidity.
October 2024
1 Commits • 1 Features
Oct 1, 2024Monthly summary for 2024-10 (AliceO2Group/O2Physics) highlighting the feature delivery to enable rapidity-based dimuon polarization analysis in HE and CS regions, with no major bugs fixed reported this month. The primary work focused on updating the histograms infrastructure to treat rapidity as a polarization variable, enabling physics studies as a function of rapidity.
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Quality Metrics
Correctness80.0%
Maintainability80.0%
Architecture75.0%
Performance62.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++
Technical Skills
C++C++ DevelopmentData AnalysisHigh Energy PhysicsMemory ManagementMonte Carlo SimulationParticle PhysicsPerformance OptimizationPhysics AnalysisPhysics SimulationROOTSoftware Development
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