February 2026: Delivered a critical stability fix for Podio output in the eic/EICrecon pipeline by correcting the initialization of m_contribution_id_mask when contributionMergeFields is empty. This prevents unintended exclusion from Podio output and improves data integrity for downstream consumers. The change was implemented in commit f357f26de7c8354c100a2dc60d268791d8b1128c, addressing issue #2474, and followed through with teammate communication, validation tests, and documentation updates per the PR workflow. Result: more reliable Podio integration, reduced downstream debugging, and preserved expected output behavior.

Monthly summary for 2025-10 focusing on delivered features, fixes, and impact across the eic/epic and eic/EICrecon repositories. Implemented geometry and signal-processing improvements to calorimetry, aligning detector configuration with project-wide updates and improving simulation fidelity for BEMC-related analyses.

In Sep 2025, delivered a PulseGeneration framework for time-clustered hits in the eic/EICrecon repo, introducing a shared PulseGeneration algorithm to handle pulse generation for time-clustered contributions from SimCalorimeterHit and generalizing to SimTrackerHit. Implemented timeID assignment in SimCalorimeterHitProcessor and introduced a generic PulseGeneration algorithm to consolidate common pulse generation mechanisms.

July 2025 monthly highlights: Delivered a travel-time accounting feature for calorimeter hit contributions to improve timing accuracy and simulation fidelity in EIC reconstruction. The change computes propagation-based hit times using hit-position dependent propagation speed and a configurable inverse speed, with a fixed delay to stabilize evaluation for attenuated signals. Implemented in eic/EICrecon, aligned with project timing goals and readiness for downstream analyses.

June 2025 focused on delivering core calorimeter processing functionality for EICrecon, introducing a new SimCalorimeterHitProcessor for the Barrel Imaging Calorimeter (BIC). The work enables regrouping hits by primary MC particle, merging hits based on z-segmentation, attenuating their energy, and producing new output collections for processed hits and their contributions. These changes improve energy reconstruction accuracy and traceability for physics analyses, and provide clearer data products for downstream workflows.

November 2024 monthly summary for eic/EICrecon focusing on detector configuration refinement and bug fix in sampling fractions.

October 2024 (eic/EICrecon): Implemented a targeted bug fix to align BIC ScFi layer sampling with updated simulation data. Updated the sampling fraction by replacing a hardcoded string, ensuring compatibility with 5 GeV photons at eta=0. Commit 593f51bfa296511a690c9520fd3b17998f05bc18 (#1642) captured the change. This improves reconstruction fidelity and reduces misconfiguration risk across the pipeline.