AliceO2Group/O2Physics
Nov 2024 – Mar 2026
15 Months active
Languages Used
C++
Technical Skills
C++ DevelopmentData AnalysisDetector SimulationHigh Energy PhysicsConfiguration ManagementPhysics Simulation
hernasab
PROFILE
Hernasab
Sabrina Hernandez developed and maintained advanced data analysis and simulation features for the AliceO2Group/O2Physics repository, focusing on ZDC detector analytics in high energy physics. She engineered configurable event selection, histogramming, and data visualization pipelines using C++ and ROOT, integrating CCDB-based calibration and sector-wise energy analysis to improve measurement accuracy and reproducibility. Her work included refactoring legacy code, enhancing configuration management, and introducing robust filtering and correlation features, which streamlined workflows and reduced technical debt. By collaborating on code reviews and cross-team initiatives, Sabrina delivered maintainable, flexible solutions that enabled more precise, efficient physics analyses and supported evolving research requirements.
Overall Statistics
Feature vs Bugs
95%Features
Repository Contributions
42Total
Bugs
1
Commits
42
Features
20
Lines of code
3,664
Activity Months15
Your Network
139 peopleShared Repositories
139
Work History
March 2026
1 Commits • 1 Features
Mar 1, 2026March 2026 performance summary: Delivered ZDC Correlation Features and Sector Information Cleanup in AliceO2Group/O2Physics. Key deliverable: new ZDC correlation features and removal of obsolete ZDC sector information to streamline data analysis. Commit dc4cb0d0dfe2292efca7ebcac9ec32bf22b4265a, co-authored by Sabrina Hernandez, demonstrates effective collaboration and code ownership. This work improves data quality, reduces processing complexity, and accelerates physics analyses relying on ZDC data. While there were no major bug fixes within this scope, the cleanup mitigates potential data inconsistencies and technical debt. Technologies/skills demonstrated include feature development in the O2Physics stack, version control discipline, code review and cross-team collaboration.
1 Commits • 1 Features
Mar 1, 2026March 2026 performance summary: Delivered ZDC Correlation Features and Sector Information Cleanup in AliceO2Group/O2Physics. Key deliverable: new ZDC correlation features and removal of obsolete ZDC sector information to streamline data analysis. Commit dc4cb0d0dfe2292efca7ebcac9ec32bf22b4265a, co-authored by Sabrina Hernandez, demonstrates effective collaboration and code ownership. This work improves data quality, reduces processing complexity, and accelerates physics analyses relying on ZDC data. While there were no major bug fixes within this scope, the cleanup mitigates potential data inconsistencies and technical debt. Technologies/skills demonstrated include feature development in the O2Physics stack, version control discipline, code review and cross-team collaboration.
March 2026
February 2026
2 Commits • 1 Features
Feb 1, 2026February 2026 — AliceO2Group/O2Physics: ZDC flowZdcTask Visualization and Analysis Enhancements. Delivered 2D histograms for sector ZDC energies and introduced 2D correlation histograms for ZDC common energy, alongside refactoring to remove outdated variables and histograms. These improvements enhance ZDC data visualization and analytical capabilities within flowZdcTask, enabling more precise energy studies and faster investigations for the physics analyses team.
February 2026
2 Commits • 1 Features
Feb 1, 2026February 2026 — AliceO2Group/O2Physics: ZDC flowZdcTask Visualization and Analysis Enhancements. Delivered 2D histograms for sector ZDC energies and introduced 2D correlation histograms for ZDC common energy, alongside refactoring to remove outdated variables and histograms. These improvements enhance ZDC data visualization and analytical capabilities within flowZdcTask, enabling more precise energy studies and faster investigations for the physics analyses team.
January 2026
4 Commits • 2 Features
Jan 1, 2026January 2026: Delivered substantive ZDC analysis enhancements and configurable vertex cuts in AliceO2Group/O2Physics, improving centrality resolution, event selection precision, and data visualization, while reducing technical debt through cleanup of obsolete code. These changes enhance physics accuracy and analysis throughput for ZDC-related studies.
4 Commits • 2 Features
Jan 1, 2026January 2026: Delivered substantive ZDC analysis enhancements and configurable vertex cuts in AliceO2Group/O2Physics, improving centrality resolution, event selection precision, and data visualization, while reducing technical debt through cleanup of obsolete code. These changes enhance physics accuracy and analysis throughput for ZDC-related studies.
January 2026
November 2025
6 Commits • 2 Features
Nov 1, 2025Summary for 2025-11: Targeted ZDC analytics work in O2Physics delivered substantial improvements to data processing, accuracy, and maintainability, with clear business value for ZDC-based physics results and downstream analyses.
November 2025
6 Commits • 2 Features
Nov 1, 2025Summary for 2025-11: Targeted ZDC analytics work in O2Physics delivered substantial improvements to data processing, accuracy, and maintainability, with clear business value for ZDC-based physics results and downstream analyses.
October 2025
1 Commits • 1 Features
Oct 1, 2025October 2025 monthly summary for AliceO2Group/O2Physics focusing on ZDC analysis improvements and related code maintenance. Delivered refinements to ZDC analysis by updating TDC cuts configuration and histogram definitions, along with a targeted code cleanup in preparation for PWGCF analyses. The work enhances measurement precision, flexibility of ZDC selections, and maintainability of the analysis pipeline.
1 Commits • 1 Features
Oct 1, 2025October 2025 monthly summary for AliceO2Group/O2Physics focusing on ZDC analysis improvements and related code maintenance. Delivered refinements to ZDC analysis by updating TDC cuts configuration and histogram definitions, along with a targeted code cleanup in preparation for PWGCF analyses. The work enhances measurement precision, flexibility of ZDC selections, and maintainability of the analysis pipeline.
October 2025
September 2025
2 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for AliceO2Group/O2Physics: Focused delivery on ZDC data processing enhancements. Implemented a refactor of flowZdcTask by removing an obsolete processing function and introducing a new processZdc path, complemented by ZDC correlation histograms and configuration options to enable higher granularity ZDC data processing without direct collision association within PWGCF. No major bugs fixed this month; effort centered on feature delivery, maintainability, and enabling downstream physics analyses. These changes improve data quality, flexibility, and maintainability, establishing a stronger foundation for ZDC-based PWGCF analyses.
September 2025
2 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for AliceO2Group/O2Physics: Focused delivery on ZDC data processing enhancements. Implemented a refactor of flowZdcTask by removing an obsolete processing function and introducing a new processZdc path, complemented by ZDC correlation histograms and configuration options to enable higher granularity ZDC data processing without direct collision association within PWGCF. No major bugs fixed this month; effort centered on feature delivery, maintainability, and enabling downstream physics analyses. These changes improve data quality, flexibility, and maintainability, establishing a stronger foundation for ZDC-based PWGCF analyses.
August 2025
2 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08 focused on deliverables for AliceO2Group/O2Physics, highlighting the key feature delivery around ZDC analysis and broader event characterization, along with the associated commits and impact.
2 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08 focused on deliverables for AliceO2Group/O2Physics, highlighting the key feature delivery around ZDC analysis and broader event characterization, along with the associated commits and impact.
August 2025
July 2025
2 Commits • 1 Features
Jul 1, 2025In July 2025, focused on enhancing data selection and event processing in PWGCF within the O2Physics repository, delivering cleaner track filtering and more accurate ZDC/ZEM event handling. Implemented targeted changes to data selection logic, disabled default ZDC collision association processing to prevent mis-associations, and simplified configuration by removing unused variables. This work reduces erroneous event processing, improves data quality, and streamlines downstream analyses.
July 2025
2 Commits • 1 Features
Jul 1, 2025In July 2025, focused on enhancing data selection and event processing in PWGCF within the O2Physics repository, delivering cleaner track filtering and more accurate ZDC/ZEM event handling. Implemented targeted changes to data selection logic, disabled default ZDC collision association processing to prevent mis-associations, and simplified configuration by removing unused variables. This work reduces erroneous event processing, improves data quality, and streamlines downstream analyses.
June 2025
4 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for AliceO2Group/O2Physics focusing on FlowZdcTask enhancements and code modernization. Delivered CCDB-based analysis capabilities and a cleaned, more maintainable histogram/selection pipeline. These changes improve data-driven analytics, reduce technical debt, and provide a stronger foundation for reproducibility and future enhancements.
4 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for AliceO2Group/O2Physics focusing on FlowZdcTask enhancements and code modernization. Delivered CCDB-based analysis capabilities and a cleaned, more maintainable histogram/selection pipeline. These changes improve data-driven analytics, reduce technical debt, and provide a stronger foundation for reproducibility and future enhancements.
June 2025
May 2025
5 Commits • 2 Features
May 1, 2025For May 2025, the O2Physics team delivered two ZDC-focused enhancements that strengthen data quality validation and analysis capabilities: (1) ZDC QA and amplitude configuration enhancements for FlowZdcTask and (2) ZDC histogram enhancements with energy-based analysis. The work adds extensive QA configuration options, refines amplitude/time measurements, increases configurability for detector amplitudes and event selection, introduces sector-wise ZDC histograms (ZNA, ZPA, ZNC, ZPC), energy-aware amplitude calculations, and an additional Nch histogram, and reduces clutter by removing an obsolete histogram. Impact: improved data quality validation, richer data for physics analyses, and a streamlined ZDC task. Technologies/skills demonstrated include C++/ROOT histogram management, configuration-driven development, and energy-based analysis.
May 2025
5 Commits • 2 Features
May 1, 2025For May 2025, the O2Physics team delivered two ZDC-focused enhancements that strengthen data quality validation and analysis capabilities: (1) ZDC QA and amplitude configuration enhancements for FlowZdcTask and (2) ZDC histogram enhancements with energy-based analysis. The work adds extensive QA configuration options, refines amplitude/time measurements, increases configurability for detector amplitudes and event selection, introduces sector-wise ZDC histograms (ZNA, ZPA, ZNC, ZPC), energy-aware amplitude calculations, and an additional Nch histogram, and reduces clutter by removing an obsolete histogram. Impact: improved data quality validation, richer data for physics analyses, and a streamlined ZDC task. Technologies/skills demonstrated include C++/ROOT histogram management, configuration-driven development, and energy-based analysis.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025: Focused on enhancing data analysis capabilities in O2Physics, delivering new histograms, refining event selection, and removing obsolete configurations to reduce maintenance burden. This work improves data quality, analysis throughput, and long-term code health across the repository.
1 Commits • 1 Features
Mar 1, 2025March 2025: Focused on enhancing data analysis capabilities in O2Physics, delivering new histograms, refining event selection, and removing obsolete configurations to reduce maintenance burden. This work improves data quality, analysis throughput, and long-term code health across the repository.
March 2025
February 2025
6 Commits • 1 Features
Feb 1, 2025February 2025: Delivered end-to-end FlowZdcTask enhancements in AliceO2Group/O2Physics, expanding event selection, filtering configurability, and histogram/reporting capabilities to improve analysis accuracy and flexibility. Focused on quality and maintainability alongside feature delivery to enable reproducible physics analyses.
February 2025
6 Commits • 1 Features
Feb 1, 2025February 2025: Delivered end-to-end FlowZdcTask enhancements in AliceO2Group/O2Physics, expanding event selection, filtering configurability, and histogram/reporting capabilities to improve analysis accuracy and flexibility. Focused on quality and maintainability alongside feature delivery to enable reproducible physics analyses.
January 2025
3 Commits • 2 Features
Jan 1, 20252025-01 Monthly Summary for AliceO2Group/O2Physics focused on feature delivery and data quality improvements in ZDC and FT0 analyses, with accompanying code quality work. No explicit bug fixes recorded for this period; effort centered on delivering measurable analytical capabilities and maintainability gains.
3 Commits • 2 Features
Jan 1, 20252025-01 Monthly Summary for AliceO2Group/O2Physics focused on feature delivery and data quality improvements in ZDC and FT0 analyses, with accompanying code quality work. No explicit bug fixes recorded for this period; effort centered on delivering measurable analytical capabilities and maintainability gains.
January 2025
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for AliceO2Group/O2Physics: Implemented a configurable, uniform multiplicity axis binning in FlowZDCtask, enabling a fixed 0–2500 range with 2500 bins for multiplicity measurements within PWGCF. This aligns the code with PWGCF standards, simplifies configuration, and improves measurement consistency and reproducibility.
December 2024
1 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for AliceO2Group/O2Physics: Implemented a configurable, uniform multiplicity axis binning in FlowZDCtask, enabling a fixed 0–2500 range with 2500 bins for multiplicity measurements within PWGCF. This aligns the code with PWGCF standards, simplifies configuration, and improves measurement consistency and reproducibility.
November 2024
2 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for AliceO2Group/O2Physics: Delivered ZDC/ZN energy distribution analysis enhancements with detector efficiency corrections; expanded acceptance factors; enhanced data processing and histograms for ZDC and FT0; added configurable acceptance factors for ZNA/ZNC/ZPA/ZPC detectors; added histograms for ZN and ZP energy distributions versus centrality; widened energy coverage of existing histograms to support centrality-dependent analyses.
2 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for AliceO2Group/O2Physics: Delivered ZDC/ZN energy distribution analysis enhancements with detector efficiency corrections; expanded acceptance factors; enhanced data processing and histograms for ZDC and FT0; added configurable acceptance factors for ZNA/ZNC/ZPA/ZPC detectors; added histograms for ZN and ZP energy distributions versus centrality; widened energy coverage of existing histograms to support centrality-dependent analyses.
November 2024
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Quality Metrics
Correctness86.0%
Maintainability84.0%
Architecture81.4%
Performance75.2%
AI Usage21.4%
Skills & Technologies
Programming Languages
C++
Technical Skills
Build Systems (CMake)C++C++ DevelopmentC++ developmentC++ programmingCCDB IntegrationCode RefactoringConfiguration ManagementData AnalysisData FilteringData VisualizationDetector CalibrationDetector SimulationEvent SelectionHigh Energy Physics
Repositories Contributed To
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