
E. Groenen developed expanded theory card configurations for the NNPDF/nnpdf repository, focusing on NNLO QCD-only calculations for NNPDF4.1. By implementing 7-point renormalization and factorization scale variations using YAML, Groenen enabled more comprehensive uncertainty quantification in high energy physics phenomenology. The approach centered on data configuration and theoretical physics principles, allowing for broader scale-variation studies and improved predictive reliability. Groenen’s work strengthened reproducibility and continuous integration readiness for NNLO configurations, aligning with performance-review goals. The depth of the implementation laid a foundation for future extensions and documentation, addressing the need for robust, reproducible workflows in theoretical physics research.

August 2025 — Focused on expanding NNLO QCD tooling for NNPDF4.1 by introducing theory cards that enable comprehensive scale-variation studies. Implemented 7-point renormalization and factorization scale variations (xir/xif) to broaden the uncertainty envelope, backed by commit 90bce2d977f6b8b0266ffb784550bde67603449d ("Add theory cards with 7-pt scale variations"). Impact: Provides more robust uncertainty quantification for NNLO predictions, improving reliability of phenomenology studies and experimental comparisons. Lays groundwork for future extensions and documentation enhancements. Bugs: No major bugs fixed this month; no regressions reported. Technologies/Skills: NNLO QCD theory, scale-variation methodologies, theory-card configuration, Git/versioning, reproducible workflows, cross-team collaboration.
August 2025 — Focused on expanding NNLO QCD tooling for NNPDF4.1 by introducing theory cards that enable comprehensive scale-variation studies. Implemented 7-point renormalization and factorization scale variations (xir/xif) to broaden the uncertainty envelope, backed by commit 90bce2d977f6b8b0266ffb784550bde67603449d ("Add theory cards with 7-pt scale variations"). Impact: Provides more robust uncertainty quantification for NNLO predictions, improving reliability of phenomenology studies and experimental comparisons. Lays groundwork for future extensions and documentation enhancements. Bugs: No major bugs fixed this month; no regressions reported. Technologies/Skills: NNLO QCD theory, scale-variation methodologies, theory-card configuration, Git/versioning, reproducible workflows, cross-team collaboration.
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