Monthly summary for 2025-10 focusing on RP reconstruction enhancements and polynomial-based momentum reconstruction across the eic/epic and eic/EICrecon repos. Key features delivered: - RP Position Resolution Enhancement and New Polynomial Reconstruction (eic/epic): Modifies RP segmentation to align with conservative spatial resolution expectations, reduces shielding foil thickness, and adds LUTs for a new RP polynomial reconstruction algorithm within EICrecon to improve RP position resolution. Commit: 97e36e57353955ba2634091a1f91d5d6cb0ba76f (Change segmentation for the RP, and add LUTs for the RP polynomial re… (#966)). - Proton Momentum Reconstruction via Polynomial Matrix Algorithm (eic/EICrecon): Introduces a new polynomial matrix reconstruction algorithm for Roman Pot detectors that extracts momentum fraction using a chromaticity table and evaluates matrices fit with polynomials to reconstruct proton momentum. Adds new functionality for proton reconstruction without altering existing code. Commit: c6a13260c2c9cb1409e4f0510228000f24c33552 (Add polynomial matrix method rp (#2137)). Major bugs fixed: - No explicit bug fixes reported in the provided data. Focus this month was on delivering new features and enhancements. Overall impact and accomplishments: - Enhanced RP position measurement and momentum reconstruction capabilities, enabling more accurate proton event characterization and physics analyses. The new LUT-driven RP polynomial reconstruction improves position resolution, while the polynomial matrix method enables robust momentum fraction reconstruction without destabilizing existing reconstruction workflows. - Established modular, forward-looking implementations in both repositories that can be extended with future RP calibrations and polynomial models. Technologies/skills demonstrated: - RP segmentation tuning and LUT integration for polynomial RP reconstruction, chromaticity-based momentum extraction, polynomial fits, and module-level integration within EICrecon. Demonstrated careful changes to RP reconstruction pipelines with minimal disruption to existing code.

Month: 2025-07 — Delivered targeted configuration improvements in eic/epic to broaden simulation scenarios and enhanced performance, plus a critical bug fix in eic/EICrecon that preserves reconstruction accuracy after hardware changes. Key features delivered: 1) Magnetic Field Configuration: 5x41 GeV Au-197 added as an optional, non-breaking magnet configuration scaled from top energy settings; commits include c3f82f93344672c1155903449af35e1ce74ccaf2. 2) ZDC-free Geometry Configurations: introduced geometry option to remove ZDC, significantly speeding up e+A simulations and reducing output file sizes; commit 9d7fbe136a958b2ca5de35672a775c15b68a8d26. Major bug fixes: 1) OMD matrices realignment after cryostat hardware modification in FOFFMTRK detector configuration, restoring accurate data reconstruction relative to updated OMD position; commit 1979c7cad3a42ee7eb5cf2e75fea28c25955f30a. Overall impact: increased simulation throughput and configurability without impacting default behavior, improved reconstruction reliability after hardware changes, and better alignment between physics configurations and engineering changes. Technologies/skills demonstrated: configuration management and feature flagging, energy-scaled magnetic configurations, topology-aware geometry options for performance, robust post-hardware-change data reconstruction updates, cross-repo collaboration and precise commit-level traceability.

April 2025 monthly summary for the eic/epic repository highlighting business value and technical achievements. Focused on expanding experimental capabilities by delivering a new beam configuration for Au-197 e+Au in craterlake 10x100 setup.

March 2025 focused on enabling early science with 130 GeV beams and strengthening beamline configurability across two repositories (eic/EICrecon and eic/epic). Key features introduced include 130 GeV reconstruction enhancements, new matrices for RP/OMD, and event-filtering to guard against unphysical tracks, along with an interpolated 10x130 beamline configuration that supports B0 and RP parameters with standard magnet settings. A dedicated bug fix temporarily removing conflicting OMD matrices stabilized reconstruction until a dedicated OMD algorithm is implemented. Commit-level traceability is maintained across changes.

February 2025 monthly summary for repository eic/epic. Key feature delivered: Early Science Magnet Configuration Files to define beam energies and particle types for specific experimental configurations, enabling correct beam steering without changing default behavior. This work is backed by the commit that adds scaled field files for the early science magnet settings (#832). Impact: accelerates experimental setup, improves reproducibility, and reduces risk by isolating configuration changes from default operation. Bugs: no major fixes reported this month. Skills/tech: configuration management, domain knowledge of beam steering, version control discipline, modular configuration approach.