AliceO2Group/O2Physics
Jan 2025 – Dec 2025
12 Months active
Languages Used
C++
Technical Skills
C++CMakeData AnalysisHigh Energy PhysicsC++ DevelopmentCCDB
omvazque
PROFILE
Omvazque
Omar Vazquez Rueda developed advanced data analysis and simulation features for the AliceO2Group/O2Physics repository, focusing on high energy and particle physics workflows. Over twelve months, he engineered modular Monte Carlo closure analysis, enhanced event and track selection, and improved calibration and QA processes. Using C++ and the ROOT data analysis framework, Omar refactored histogramming logic, integrated CCDB-based configuration, and introduced flexible, configurable selection criteria to support robust physics measurements. His work addressed data integrity, efficiency corrections, and simulation-to-data agreement, resulting in maintainable, scalable code that deepened analysis capabilities and improved the reliability of physics results within O2Physics.
Overall Statistics
Feature vs Bugs
83%Features
Repository Contributions
64Total
Bugs
5
Commits
64
Features
25
Lines of code
14,943
Activity Months12
Your Network
429 people
Work History
December 2025
4 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for AliceO2Group/O2Physics: Focused feature work on Monte Carlo closure analysis and MC event selection to improve data integrity and the reliability of MC-based corrections for simulated data. Key outcomes include the implementation of INEL>0 histograms for MC closure, replacing centrality with Nch in histogram registrations to enhance tracking efficiency and corrections across pions, kaons, and protons, and the introduction of FT0 and TVX-like selection criteria to tighten acceptance regions. Robustness improvements included a has_foundFT0() check to prevent invalid MC selections. These efforts deliver a more accurate MC closure framework, better data–simulation agreement, and a foundation for more precise physics results.
4 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for AliceO2Group/O2Physics: Focused feature work on Monte Carlo closure analysis and MC event selection to improve data integrity and the reliability of MC-based corrections for simulated data. Key outcomes include the implementation of INEL>0 histograms for MC closure, replacing centrality with Nch in histogram registrations to enhance tracking efficiency and corrections across pions, kaons, and protons, and the introduction of FT0 and TVX-like selection criteria to tighten acceptance regions. Robustness improvements included a has_foundFT0() check to prevent invalid MC selections. These efforts deliver a more accurate MC closure framework, better data–simulation agreement, and a foundation for more precise physics results.
December 2025
November 2025
2 Commits • 1 Features
Nov 1, 2025Month 2025-11: Implemented Particle Collision Analysis Enhancements in O2Physics (AliceO2Group/O2Physics), introducing signal loss, event loss, and event splitting capabilities; added configurable centrality and vertex position selection; improved histogram registrations to accommodate multiple particle types; introduced a configurable INEL > 0 parameter for PiKpRAA analyses, with corresponding histogram registration updates. The work is supported by clear commit references to enable traceability and future extensions.
November 2025
2 Commits • 1 Features
Nov 1, 2025Month 2025-11: Implemented Particle Collision Analysis Enhancements in O2Physics (AliceO2Group/O2Physics), introducing signal loss, event loss, and event splitting capabilities; added configurable centrality and vertex position selection; improved histogram registrations to accommodate multiple particle types; introduced a configurable INEL > 0 parameter for PiKpRAA analyses, with corresponding histogram registration updates. The work is supported by clear commit references to enable traceability and future extensions.
October 2025
1 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — Concise monthly summary for O2Physics focused on delivering improvements to track selection for secondary particle identification.
1 Commits • 1 Features
Oct 1, 2025Month: 2025-10 — Concise monthly summary for O2Physics focused on delivering improvements to track selection for secondary particle identification.
October 2025
September 2025
5 Commits • 4 Features
Sep 1, 2025Month: 2025-09 — Consolidated PWGLF-focused enhancements in O2Physics, delivering advanced analysis features, improved QA tooling, and modular calibration. The work stabilizes gamma/electron identification, expands V0 QA capabilities, adds MC processing support, and refactors eta calibration for better maintainability and configurability.
September 2025
5 Commits • 4 Features
Sep 1, 2025Month: 2025-09 — Consolidated PWGLF-focused enhancements in O2Physics, delivering advanced analysis features, improved QA tooling, and modular calibration. The work stabilizes gamma/electron identification, expands V0 QA capabilities, adds MC processing support, and refactors eta calibration for better maintainability and configurability.
August 2025
10 Commits • 3 Features
Aug 1, 2025Month 2025-08: Implemented major enhancements to centrality analysis and correlations, extended light-ion and V0 analyses with NPV-based event rejection and RAA workflows, refined PT-correlation calculations, removed the ZEM cut to streamline event processing, and reduced calibration data load overhead by loading CCDB data only once per run. These changes expand physics reach, improve analysis reliability, and increase runtime efficiency.
10 Commits • 3 Features
Aug 1, 2025Month 2025-08: Implemented major enhancements to centrality analysis and correlations, extended light-ion and V0 analyses with NPV-based event rejection and RAA workflows, refined PT-correlation calculations, removed the ZEM cut to streamline event processing, and reduced calibration data load overhead by loading CCDB data only once per run. These changes expand physics reach, improve analysis reliability, and increase runtime efficiency.
August 2025
July 2025
7 Commits • 2 Features
Jul 1, 20252025-07 Monthly Summary for AliceO2Group/O2Physics: Delivered major Nch-based MC closure improvements and enhanced event analysis, fixed a critical Nch multiplicity reset bug, and expanded PWGLF QA/analysis capabilities. These efforts increased stability of MC closure, improved per-event accuracy, and broadened QA coverage, strengthening the reliability of physics results and enabling more robust data-to-simulation comparisons.
July 2025
7 Commits • 2 Features
Jul 1, 20252025-07 Monthly Summary for AliceO2Group/O2Physics: Delivered major Nch-based MC closure improvements and enhanced event analysis, fixed a critical Nch multiplicity reset bug, and expanded PWGLF QA/analysis capabilities. These efforts increased stability of MC closure, improved per-event accuracy, and broadened QA coverage, strengthening the reliability of physics results and enabling more robust data-to-simulation comparisons.
June 2025
7 Commits • 2 Features
Jun 1, 2025June 2025 – O2Physics development: Delivered major enhancements to ZP/ZN analysis and MC corrections, improving analysis precision and reliability. Key features delivered: - Enhanced analysis capabilities for ZP/ZN ratios and spectrum moment calculations: added new histograms and expanded binning across ITS tracks, FT0 fine bins, and Nch; introduced 2D/3D histograms to correlate event properties with ZN and ZP signals; added an additional pt cutoff for moments and refined track filtering across pt ranges. - Monte Carlo corrections and tracking efficiency: refined MC corrections for track efficiencies and feed-down, added configurable options for feed-down with a CCDB global feed-down object, fixed a retrieval bug, and updated Nch- and pt-dependent efficiency corrections; improved MC tracking efficiency calculations and MC particle selection.
7 Commits • 2 Features
Jun 1, 2025June 2025 – O2Physics development: Delivered major enhancements to ZP/ZN analysis and MC corrections, improving analysis precision and reliability. Key features delivered: - Enhanced analysis capabilities for ZP/ZN ratios and spectrum moment calculations: added new histograms and expanded binning across ITS tracks, FT0 fine bins, and Nch; introduced 2D/3D histograms to correlate event properties with ZN and ZP signals; added an additional pt cutoff for moments and refined track filtering across pt ranges. - Monte Carlo corrections and tracking efficiency: refined MC corrections for track efficiencies and feed-down, added configurable options for feed-down with a CCDB global feed-down object, fixed a retrieval bug, and updated Nch- and pt-dependent efficiency corrections; improved MC tracking efficiency calculations and MC particle selection.
June 2025
May 2025
15 Commits • 4 Features
May 1, 2025May 2025 highlights for AliceO2Group/O2Physics: Delivered PWGLF upgrades across CCDB access and object retrieval with robust URL handling and run-number versus timestamp lookups, enabling more robust data access and flexibility. Implemented Monte Carlo (MC) closure analysis improvements to ensure correct event processing and aligned track selection for both reconstructed and generated MC particles, enabling accurate efficiency corrections. Added PWGLF track and event selection enhancements with configurable ITS/TPC criteria, chi-squared, crossed rows, and Nch-based event selection to refine physics measurements. Introduced ZDC analysis weighting controls with a configurable flag and default weight of 1.0. Reverted PWGLF to a stable baseline to restore expected functionality after May 7, 2025 issues. These changes improve reliability, accuracy of corrections, and reproducibility across PWGLF analyses.
May 2025
15 Commits • 4 Features
May 1, 2025May 2025 highlights for AliceO2Group/O2Physics: Delivered PWGLF upgrades across CCDB access and object retrieval with robust URL handling and run-number versus timestamp lookups, enabling more robust data access and flexibility. Implemented Monte Carlo (MC) closure analysis improvements to ensure correct event processing and aligned track selection for both reconstructed and generated MC particles, enabling accurate efficiency corrections. Added PWGLF track and event selection enhancements with configurable ITS/TPC criteria, chi-squared, crossed rows, and Nch-based event selection to refine physics measurements. Introduced ZDC analysis weighting controls with a configurable flag and default weight of 1.0. Reverted PWGLF to a stable baseline to restore expected functionality after May 7, 2025 issues. These changes improve reliability, accuracy of corrections, and reproducibility across PWGLF analyses.
April 2025
3 Commits • 2 Features
Apr 1, 2025April 2025 (2025-04) – PWGLF work in O2Physics delivered targeted feature enhancements and a major module refactor to improve data quality, analysis reliability, and maintainability. Key outcomes include richer, configurable QA histograms and event selection (minNchSel) and a consolidation of correction and MC closure logic to reduce duplication and potential inconsistencies. These changes enable more accurate physics analyses, faster iteration, and cleaner, maintainable code for PWGLF processing within the O2Physics framework.
3 Commits • 2 Features
Apr 1, 2025April 2025 (2025-04) – PWGLF work in O2Physics delivered targeted feature enhancements and a major module refactor to improve data quality, analysis reliability, and maintainability. Key outcomes include richer, configurable QA histograms and event selection (minNchSel) and a consolidation of correction and MC closure logic to reduce duplication and potential inconsistencies. These changes enable more accurate physics analyses, faster iteration, and cleaner, maintainable code for PWGLF processing within the O2Physics framework.
April 2025
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 Monthly Summary for AliceO2Group/O2Physics: Delivered Monte Carlo closure analysis support in PWGLF module, enabling direct comparisons between simulated and reconstructed data. Refactored histogram definitions and processing logic to support MC closure studies, including updates to data binning and event selection criteria for improved accuracy. The work is captured in commit 23f3c30c994689bbd2fba8b1c62910d5dccad28c (#10261).
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025 Monthly Summary for AliceO2Group/O2Physics: Delivered Monte Carlo closure analysis support in PWGLF module, enabling direct comparisons between simulated and reconstructed data. Refactored histogram definitions and processing logic to support MC closure studies, including updates to data binning and event selection criteria for improved accuracy. The work is captured in commit 23f3c30c994689bbd2fba8b1c62910d5dccad28c (#10261).
February 2025
8 Commits • 3 Features
Feb 1, 2025February 2025 monthly summary for AliceO2Group/O2Physics: Delivered major PWGLF enhancements to Monte Carlo data processing and analysis, enabling more accurate MC-to-data comparisons and broader MC-driven insights across analyses. Implemented MC process function, per-collision analysis v2, pt correlations V5, and updated MC handling across multiple commits, including [PWGLF] Adds MC process function (#9750), [PWGLF] Analyze per collision v2 (#9796), [PWGLF] Updates to MC (#9998), [PWGLF] Adds pt correlations V5 (#10196), [PWGLF] Update to MC (#10238). ZDC analysis enhancements in PWGLF: Refactor ZDC analysis to support multiple amplitude calculation methods, flexible configuration, updated histogramming and data filling for improved ZDC data analysis. Event selection enhancements: Added configurable event selection cuts (pile-up, vertexing, ZDC properties) and occupancy-based cuts to improve analysis precision and scope of physics selection. Commits: [PWGLF] Common PMT, Sum of Towers, and ZDC amp (#9857); [PWGLF] Adds more event selection cuts (#9959); [PWGLF] Adds occupancy cut (#10027). Overall impact: Strengthened data-simulation comparison fidelity, expanded analysis capabilities for ZDC and MC-driven studies, and improved precision in event selection, contributing to higher physics reach and quicker iteration cycles. Technologies/skills demonstrated: C++, ROOT-based analysis, modular refactoring, configuration-driven workflows, performance-conscious data processing, cross-module collaboration within PWGLF.
8 Commits • 3 Features
Feb 1, 2025February 2025 monthly summary for AliceO2Group/O2Physics: Delivered major PWGLF enhancements to Monte Carlo data processing and analysis, enabling more accurate MC-to-data comparisons and broader MC-driven insights across analyses. Implemented MC process function, per-collision analysis v2, pt correlations V5, and updated MC handling across multiple commits, including [PWGLF] Adds MC process function (#9750), [PWGLF] Analyze per collision v2 (#9796), [PWGLF] Updates to MC (#9998), [PWGLF] Adds pt correlations V5 (#10196), [PWGLF] Update to MC (#10238). ZDC analysis enhancements in PWGLF: Refactor ZDC analysis to support multiple amplitude calculation methods, flexible configuration, updated histogramming and data filling for improved ZDC data analysis. Event selection enhancements: Added configurable event selection cuts (pile-up, vertexing, ZDC properties) and occupancy-based cuts to improve analysis precision and scope of physics selection. Commits: [PWGLF] Common PMT, Sum of Towers, and ZDC amp (#9857); [PWGLF] Adds more event selection cuts (#9959); [PWGLF] Adds occupancy cut (#10027). Overall impact: Strengthened data-simulation comparison fidelity, expanded analysis capabilities for ZDC and MC-driven studies, and improved precision in event selection, contributing to higher physics reach and quicker iteration cycles. Technologies/skills demonstrated: C++, ROOT-based analysis, modular refactoring, configuration-driven workflows, performance-conscious data processing, cross-module collaboration within PWGLF.
February 2025
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025: Delivered a ZDC-based Ultra-Central Collision Analysis task within PWGLF for O2Physics, enabling detailed ultra-central event characterization using ZDC data in conjunction with collision events. Implemented configurations, histograms, and processing logic for ZDC energy, amplitude, and timing, along with eta- and DCA-based track analysis to enhance event characterization and physics outputs.
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025: Delivered a ZDC-based Ultra-Central Collision Analysis task within PWGLF for O2Physics, enabling detailed ultra-central event characterization using ZDC data in conjunction with collision events. Implemented configurations, histograms, and processing logic for ZDC energy, amplitude, and timing, along with eta- and DCA-based track analysis to enhance event characterization and physics outputs.
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Quality Metrics
Correctness82.2%
Maintainability80.6%
Architecture80.2%
Performance67.2%
AI Usage20.6%
Skills & Technologies
Programming Languages
C++
Technical Skills
Bug FixingC++C++ DevelopmentC++ programmingCCDBCCDB IntegrationCMakeCalibrationConfiguration ManagementData AccessData AcquisitionData AnalysisData CorrectionData FilteringData Processing
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