AliceO2Group/O2Physics
Oct 2024 – Oct 2025
10 Months active
Languages Used
C++None
Technical Skills
C++Physics AnalysisSoftware DevelopmentData AnalysisData ModelingDatabase Schema Management
rolavick
PROFILE
Rolavick
Roman Lavicka developed advanced data analysis and event selection tools for the AliceO2Group/O2Physics repository, focusing on tau physics and UPC collision workflows. He engineered modular C++ components for event reconstruction, particle identification, and Monte Carlo truth integration, enhancing both the precision and flexibility of physics analyses. His work included refactoring analysis pipelines, improving memory management, and introducing configurable selection criteria, which streamlined data processing and reduced maintenance overhead. By integrating robust configuration management and expanding test infrastructure, Roman enabled reproducible, high-quality results. His contributions demonstrated deep expertise in C++, data modeling, and infrastructure automation within high energy physics software.
Overall Statistics
Feature vs Bugs
91%Features
Repository Contributions
33Total
Bugs
2
Commits
33
Features
20
Lines of code
9,780
Activity Months10
Your Network
429 people
Work History
October 2025
1 Commits • 1 Features
Oct 1, 2025October 2025 (Month: 2025-10) – Governance-focused contributions in AliceO2Group/O2Physics. Delivered a targeted feature: Code Ownership Update for PWGUD, aligning CODEOWNERS with the new PWGUD team assignments and including Tutorials/PWGUD directories to ensure proper code reviews and accountability. Implemented via infrastructure change [Infrastructure] Update CODEOWNERS (#13189) with commit ef5d46b533550880fd09dc9f49398bc3d6e4c445. No major bugs fixed this month; the primary impact was improved PR routing, clearer ownership, and faster review cycles for PWGUD contributions. Technologies demonstrated: repository governance, CODEOWNERS syntax, infrastructure automation, and cross-team collaboration.
1 Commits • 1 Features
Oct 1, 2025October 2025 (Month: 2025-10) – Governance-focused contributions in AliceO2Group/O2Physics. Delivered a targeted feature: Code Ownership Update for PWGUD, aligning CODEOWNERS with the new PWGUD team assignments and including Tutorials/PWGUD directories to ensure proper code reviews and accountability. Implemented via infrastructure change [Infrastructure] Update CODEOWNERS (#13189) with commit ef5d46b533550880fd09dc9f49398bc3d6e4c445. No major bugs fixed this month; the primary impact was improved PR routing, clearer ownership, and faster review cycles for PWGUD contributions. Technologies demonstrated: repository governance, CODEOWNERS syntax, infrastructure automation, and cross-team collaboration.
October 2025
July 2025
4 Commits • 2 Features
Jul 1, 2025July 2025 (AliceO2Group/O2Physics) focused on delivering feature enhancements for RCT flags use in UPC analyses and tau event selection, strengthening test infrastructure, and updating governance to reflect evolving team ownership. The changes improve analysis accuracy, configurability, and operational transparency, enabling more robust production of UD tables and tau event selections while reducing maintenance risk.
July 2025
4 Commits • 2 Features
Jul 1, 2025July 2025 (AliceO2Group/O2Physics) focused on delivering feature enhancements for RCT flags use in UPC analyses and tau event selection, strengthening test infrastructure, and updating governance to reflect evolving team ownership. The changes improve analysis accuracy, configurability, and operational transparency, enabling more robust production of UD tables and tau event selections while reducing maintenance risk.
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 — Delivered the Two-Track Event Table Producer with Monte Carlo Truth Data in O2Physics, enhancing UPC collision data analysis by producing per-event and per-track information along with associated MC truth data. This enables more precise selection, richer analytics, and reproducible results in offline workflows. Also implemented targeted improvements to existing personal task analysis functionalities, contributing to smoother task tracking and reporting. The work aligns with ongoing efforts to expand data-model completeness and analysis utility in the O2 physics stack.
1 Commits • 1 Features
Jun 1, 2025June 2025 — Delivered the Two-Track Event Table Producer with Monte Carlo Truth Data in O2Physics, enhancing UPC collision data analysis by producing per-event and per-track information along with associated MC truth data. This enables more precise selection, richer analytics, and reproducible results in offline workflows. Also implemented targeted improvements to existing personal task analysis functionalities, contributing to smoother task tracking and reporting. The work aligns with ongoing efforts to expand data-model completeness and analysis utility in the O2 physics stack.
June 2025
April 2025
5 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for AliceO2Group/O2Physics focused on delivering end-to-end tau analysis capabilities and robust event filtering. Three key features were released, with emphasis on MC truth integration, data enrichment for tau reconstruction, and flexible preselection to improve analysis robustness. The work enhances physics accuracy, reproducibility, and throughput across analysis pipelines.
April 2025
5 Commits • 3 Features
Apr 1, 2025April 2025 monthly summary for AliceO2Group/O2Physics focused on delivering end-to-end tau analysis capabilities and robust event filtering. Three key features were released, with emphasis on MC truth integration, data enrichment for tau reconstruction, and flexible preselection to improve analysis robustness. The work enhances physics accuracy, reproducibility, and throughput across analysis pipelines.
March 2025
3 Commits • 1 Features
Mar 1, 2025March 2025: Delivered a significant Tau analysis upgrade in AliceO2Group/O2Physics, improving data quality and analysis capability. Implemented event selection bit storage in UDtables, converter/producer updates, and refined tau candidate logic in UpcTauRl to avoid electron misidentification. Expanded PWGUD tau processing with new data columns (track time resolution, TPC inner parameters, TOF momentum), refined pre-selection cuts for electron and muon/pion candidates, and introduced rejection histogramming for monitoring. These changes provide cleaner tau datasets, better observability, and a stronger foundation for physics analyses.
3 Commits • 1 Features
Mar 1, 2025March 2025: Delivered a significant Tau analysis upgrade in AliceO2Group/O2Physics, improving data quality and analysis capability. Implemented event selection bit storage in UDtables, converter/producer updates, and refined tau candidate logic in UpcTauRl to avoid electron misidentification. Expanded PWGUD tau processing with new data columns (track time resolution, TPC inner parameters, TOF momentum), refined pre-selection cuts for electron and muon/pion candidates, and introduced rejection histogramming for monitoring. These changes provide cleaner tau datasets, better observability, and a stronger foundation for physics analyses.
March 2025
February 2025
6 Commits • 5 Features
Feb 1, 2025February 2025 monthly summary for AliceO2Group/O2Physics focusing on delivering new analysis capabilities, refining particle identification, and consolidating event selection workflows to improve physics reach and production reliability. Achievements span across UD MC validation, UPC Tau analysis, ITSROF studies, UpcTauRl configuration, and mixed-event analyses, with emphasis on reproducibility, performance, and tangible business value.
February 2025
6 Commits • 5 Features
Feb 1, 2025February 2025 monthly summary for AliceO2Group/O2Physics focusing on delivering new analysis capabilities, refining particle identification, and consolidating event selection workflows to improve physics reach and production reliability. Achievements span across UD MC validation, UPC Tau analysis, ITSROF studies, UpcTauRl configuration, and mixed-event analyses, with emphasis on reproducibility, performance, and tangible business value.
January 2025
5 Commits • 2 Features
Jan 1, 2025January 2025 monthly performance summary for AliceO2Group/O2Physics. Focused on UpcTau central barrel tau analysis and Kstar invariant mass histogram enhancements. Implemented Kstar invariant mass histograms and refined labels for pion invariant masses; refactored UpcTauCentralBarrelRL to UpcTauRl with expanded histograms and configuration for tau analysis (electron and pion/kaon channels), and improved PID-related histogramming. Fixed a memory leak by reworking track indices storage and introducing vecPVnewPIDidx for correct data association when useThresholdsPID is enabled. These changes boost analysis precision, robustness, and configurability, delivering tangible business value for UPC physics analyses.
5 Commits • 2 Features
Jan 1, 2025January 2025 monthly performance summary for AliceO2Group/O2Physics. Focused on UpcTau central barrel tau analysis and Kstar invariant mass histogram enhancements. Implemented Kstar invariant mass histograms and refined labels for pion invariant masses; refactored UpcTauCentralBarrelRL to UpcTauRl with expanded histograms and configuration for tau analysis (electron and pion/kaon channels), and improved PID-related histogramming. Fixed a memory leak by reworking track indices storage and introducing vecPVnewPIDidx for correct data association when useThresholdsPID is enabled. These changes boost analysis precision, robustness, and configurability, delivering tangible business value for UPC physics analyses.
January 2025
December 2024
5 Commits • 3 Features
Dec 1, 2024December 2024 monthly summary for AliceO2Group/O2Physics focusing on tau physics enhancements and logging improvements. Delivered three major features improving tau event analysis, PID, and event logging, along with maintainability improvements. Business value includes more precise tau-related physics analyses, better channel classification, and cleaner operational logs, enabling faster iteration and more reliable results.
December 2024
5 Commits • 3 Features
Dec 1, 2024December 2024 monthly summary for AliceO2Group/O2Physics focusing on tau physics enhancements and logging improvements. Delivered three major features improving tau event analysis, PID, and event logging, along with maintainability improvements. Business value includes more precise tau-related physics analyses, better channel classification, and cleaner operational logs, enabling faster iteration and more reliable results.
November 2024
2 Commits • 1 Features
Nov 1, 2024November 2024 — AliceO2Group/O2Physics: Delivered key analysis tooling enhancements and a critical data-integrity fix. Key features delivered: Enhanced Personal Task Analysis with new enums for particle types and tau channels, reorganized configurable parameters into logical groups, and added MC truth histogramming options to improve analysis capabilities. Major bugs fixed: Corrected UDMCPARTICLE and UDMCCOLLISION table name literals to reflect the intended database schema, preventing potential data access issues due to schema mismatch. Overall impact: Improved data integrity, more flexible and scalable analysis workflows, and richer MC truth capabilities, enabling more reliable physics results and faster iteration. Technologies/skills demonstrated: C++ macro-level code maintenance, refactoring, enums design, histogramming, parameter management, and cross-team collaboration in PWGUD.
2 Commits • 1 Features
Nov 1, 2024November 2024 — AliceO2Group/O2Physics: Delivered key analysis tooling enhancements and a critical data-integrity fix. Key features delivered: Enhanced Personal Task Analysis with new enums for particle types and tau channels, reorganized configurable parameters into logical groups, and added MC truth histogramming options to improve analysis capabilities. Major bugs fixed: Corrected UDMCPARTICLE and UDMCCOLLISION table name literals to reflect the intended database schema, preventing potential data access issues due to schema mismatch. Overall impact: Improved data integrity, more flexible and scalable analysis workflows, and richer MC truth capabilities, enabling more reliable physics results and faster iteration. Technologies/skills demonstrated: C++ macro-level code maintenance, refactoring, enums design, histogramming, parameter management, and cross-team collaboration in PWGUD.
November 2024
October 2024
1 Commits • 1 Features
Oct 1, 2024October 2024 monthly work summary for AliceO2Group/O2Physics focusing on feature delivery and bug fixes related to UPCCandidateProducer and tau-event filtering. Delivered generalization of UPCCandidateProducer to support multiple track collection types via template parameters for BCsWithBcSels, and refactored UpcTauCentralBarrelRL to include tau-event selection criteria, enabling improved tau filtering. Addressed a UPCCandProducer-related issue arising after upcflag introduction (commit 77fa4e8eaa0ec75d9bfbf27d8ee0feac403112ba) as part of a bug fix. These changes enhance modularity, testability, and robustness of the UPCE analysis workflow, reducing future maintenance risk and enabling broader physics analyses.
October 2024
1 Commits • 1 Features
Oct 1, 2024October 2024 monthly work summary for AliceO2Group/O2Physics focusing on feature delivery and bug fixes related to UPCCandidateProducer and tau-event filtering. Delivered generalization of UPCCandidateProducer to support multiple track collection types via template parameters for BCsWithBcSels, and refactored UpcTauCentralBarrelRL to include tau-event selection criteria, enabling improved tau filtering. Addressed a UPCCandProducer-related issue arising after upcflag introduction (commit 77fa4e8eaa0ec75d9bfbf27d8ee0feac403112ba) as part of a bug fix. These changes enhance modularity, testability, and robustness of the UPCE analysis workflow, reducing future maintenance risk and enabling broader physics analyses.
Activity
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Quality Metrics
Correctness84.6%
Maintainability82.8%
Architecture83.4%
Performance70.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++None
Technical Skills
C++C++ DevelopmentCMakeCode OwnershipConfiguration ManagementData AnalysisData FilteringData ModelingData ProcessingData StructuresDatabase Schema ManagementDebuggingDetector SimulationEvent ReconstructionEvent Selection
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