
Fabio Colamaria developed advanced data analysis and simulation features for the AliceO2Group/O2Physics repository, focusing on high energy and particle physics workflows. He engineered configurable event analysis controls and enhanced decay finder modules, enabling efficient processing of large datasets and more precise D meson reconstruction. Using C++ and Monte Carlo simulation techniques, Fabio integrated detector-aware preselection logic, refined particle identification, and expanded histogramming for signal and background separation. He also addressed reliability in correlation analyses by implementing targeted bug fixes. His work demonstrated depth in both feature development and maintenance, supporting scalable, accurate physics studies and robust software engineering practices.

February 2026: Delivered a feature enhancement in O2Physics to differentiate true vs non-true particles in Monte Carlo Lc-hadron correlation analyses by introducing true-signal histogram entries in MC reconstruction mode (THnSparse). This change, tracked under commit f5b036d9fa3acc7d8970ef3b8afdb07cdeea3a14, enables more granular and accurate physics measurements and improves signal tagging for Lc-hadron studies.
February 2026: Delivered a feature enhancement in O2Physics to differentiate true vs non-true particles in Monte Carlo Lc-hadron correlation analyses by introducing true-signal histogram entries in MC reconstruction mode (THnSparse). This change, tracked under commit f5b036d9fa3acc7d8970ef3b8afdb07cdeea3a14, enables more granular and accurate physics measurements and improves signal tagging for Lc-hadron studies.
September 2025 monthly summary for AliceO2Group/O2Physics: Focused on reliability and quality improvements in the Lc-h correlator. Delivered a targeted bug fix that stabilizes correlation calculations by introducing conditional filling of the Lc entry and resetting the correlation status flag. This work improves data quality and confidence in downstream physics analyses.
September 2025 monthly summary for AliceO2Group/O2Physics: Focused on reliability and quality improvements in the Lc-h correlator. Delivered a targeted bug fix that stabilizes correlation calculations by introducing conditional filling of the Lc entry and resetting the correlation status flag. This work improves data quality and confidence in downstream physics analyses.
July 2025 focused on delivering user-facing ALICE 3 analysis enhancements in O2Physics, with emphasis on RICH-based preselection and improved D0/D0bar visualization. Achievements center on integrating RICH flags into analysis preselection, tagging richTracks with signal information and refining PID for pions/kaons/protons based on RICH data, and introducing unweighted and weighted/unweighted mass plots for D0 and D0bar in the ALICE 3 decay finder with histograms distinguishing signal, reflection, and background (including efficiency-corrected and uncorrected views). No major bugs fixed this month. Technologies demonstrated include ROOT/C++ data analysis, detector-aware preselection logic, advanced PID tuning, and visualization of mass spectra to enable clearer signal/background separation.
July 2025 focused on delivering user-facing ALICE 3 analysis enhancements in O2Physics, with emphasis on RICH-based preselection and improved D0/D0bar visualization. Achievements center on integrating RICH flags into analysis preselection, tagging richTracks with signal information and refining PID for pions/kaons/protons based on RICH data, and introducing unweighted and weighted/unweighted mass plots for D0 and D0bar in the ALICE 3 decay finder with histograms distinguishing signal, reflection, and background (including efficiency-corrected and uncorrected views). No major bugs fixed this month. Technologies demonstrated include ROOT/C++ data analysis, detector-aware preselection logic, advanced PID tuning, and visualization of mass spectra to enable clearer signal/background separation.
June 2025 monthly summary focusing on key features delivered in ALICE3 decay analysis and Pb-Pb simulations, with emphasis on business value and technical achievements across O2Physics and O2DPG.
June 2025 monthly summary focusing on key features delivered in ALICE3 decay analysis and Pb-Pb simulations, with emphasis on business value and technical achievements across O2Physics and O2DPG.
Concise monthly summary for 2025-05 focused on ALICE3 D0/D0bar meson correlation groundwork and decay finder enhancements within O2Physics. Delivered foundational components for a D0-D0bar correlations framework in ALICE3 detector simulations, including data structures and analysis tasks for reconstructing and correlating D0 and D0bar mesons across real data and MC. Implemented enhancements to the ALICE3 decay finder with new configuration parameters and refined selection criteria for D and Dbar mesons, and expanded histogramming to validate reconstructed D mesons (signal, reflection, background). This work lays the groundwork for end-to-end analyses in Run3/ALICE3 simulations and supports performance benchmarking. Commits: 76257f1358b04def5b6bffbd489bc46a4cacf9d9, 85edada175f214df3812c6e3bebb3d1bd9c8cd28
Concise monthly summary for 2025-05 focused on ALICE3 D0/D0bar meson correlation groundwork and decay finder enhancements within O2Physics. Delivered foundational components for a D0-D0bar correlations framework in ALICE3 detector simulations, including data structures and analysis tasks for reconstructing and correlating D0 and D0bar mesons across real data and MC. Implemented enhancements to the ALICE3 decay finder with new configuration parameters and refined selection criteria for D and Dbar mesons, and expanded histogramming to validate reconstructed D mesons (signal, reflection, background). This work lays the groundwork for end-to-end analyses in Run3/ALICE3 simulations and supports performance benchmarking. Commits: 76257f1358b04def5b6bffbd489bc46a4cacf9d9, 85edada175f214df3812c6e3bebb3d1bd9c8cd28
February 2025 — Monthly work summary for AliceO2Group/O2Physics. Delivered configurable event analysis controls to reduce compute needs for large datasets while preserving representative results. No critical bugs fixed this month. This work enhances targeted QA and physics studies by enabling selective processing and sampling, contributing to faster iteration cycles and better resource utilization.
February 2025 — Monthly work summary for AliceO2Group/O2Physics. Delivered configurable event analysis controls to reduce compute needs for large datasets while preserving representative results. No critical bugs fixed this month. This work enhances targeted QA and physics studies by enabling selective processing and sampling, contributing to faster iteration cycles and better resource utilization.
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