May 2026 monthly work summary focusing on delivering beam spill data retrieval and PMT data handling improvements across two core SBNSoftware repos. Highlights include new modules for beam spill retrieval from ICARUS and NuMI, and a refactored PMT data handling framework with event generation/analysis classes, released under versioned tags. These changes enhance data processing capabilities, analytics downstream, and overall maintainability.

January 2026 (2026-01) focused on stabilizing core simulation fidelity in SBNSoftware/sbncode by addressing an edge-case bug in the MeVPrtl Event Generator. A bug fix corrected flux type classification for Boone ntuple data and ensured neutrino energy is derived from MCTruth when MCFlux energy is -1, eliminating inconsistent energy values in edge cases. This change improves the reliability of flux weighting and downstream physics analyses that rely on accurate energy sourcing.

Month: 2025-11 – Focused on SBNSoftware/sbndcode reliability by delivering a robust frame timing fix for scenarios where the RWM signal is missing. This improves the correctness of frame application logic across beam and off-beam conditions, reducing downtime and data-quality risks.

September 2025 monthly summary for SBNSoftware/sbnobj: Delivered documentation standardization and code hygiene improvements for FrameShiftInfo and TimingInfo. Refactored to use default constructors, enhanced Doxygen comments, and standardized header and inline documentation style. Fixed a minor documentation formatting issue. All changes are non-breaking and aimed at improving maintainability and onboarding.

For August 2025, delivered foundational timing-data infrastructure for SBND in the sbnobj repository, enabling more precise event reconstruction and downstream analysis. Also completed a migration step to consolidate code products within sbnobj, improving build reliability and integration with SBND analytics. A targeted bug fix corrected the TimingInfo.TdcBes getter and enhanced documentation, strengthening code quality and developer onboarding.

July 2025 monthly summary for SBNSoftware/sbndcode focused on advancing waveform-based timing and event reconstruction reliability. Delivered Waveform Alignment Enhancements integrated into the reco1 configuration, with granular timing-correction controls (PPS path, PMT-to-digitizer cable transit, digitizer jitter, PMT response) and readout delay adjustments for flash finders. Fixed opflash finder bugs and updated FCLs to consume the new waveform data. Introduced breakdown of individual correction factors to improve validation, tuning, and reproducibility across the data-processing chain.

May 2025 summary for SBNSoftware/sbndcode: Implemented the Timing Module for SBND waveform alignment enabling time shifts based on TDC/PTB data, added timing diagnostics plotting, and performed configuration refinements and header cleanup. Addressed a critical timing board correction bug and improved code maintainability through targeted cleanup.