What the study found
The study presents an interface between PineAPPL and Matrix that can calculate fully differential cross sections as interpolation grids with next-to-next-to-leading order (NNLO) accuracy in quantum chromodynamics (QCD, the theory of strong interactions) and next-to-leading order (NLO) accuracy in electroweak (EW) theory.
Why the authors say this matters
The authors say this is the first publicly available tool for calculating interpolation grids at NNLO QCD accuracy for a wide set of processes. They state that such grids allow predictions to be computed for arbitrary parton distribution functions (PDFs, functions describing how momentum is shared among partons inside a proton) and PDF uncertainties without repeating the full calculation.
What the researchers tested
The researchers developed and presented an interface between PineAPPL and Matrix. They used it to produce interpolation grids for fully differential cross sections, and they report that the new version of Matrix and the grids from this publication are available online.
What worked and what didn't
The abstract says the interface enables interpolation grids at NNLO QCD and NLO EW accuracy. It also says these grids support predictions for arbitrary PDFs and PDF uncertainties, and can be used in global PDF analyses with exact NNLO calculations instead of K-factors.
What to keep in mind
The abstract does not describe any experimental comparison, performance limits, or failures. It also does not give technical details about the range of processes beyond saying it is a wide set of processes.
Key points
- An interface between PineAPPL and Matrix is presented for calculating interpolation grids.
- The grids are described as accurate at NNLO in QCD and NLO in electroweak theory.
- The authors say it is the first publicly available NNLO QCD grid tool for a wide set of processes.
- The abstract says the grids can be used to compute predictions for arbitrary PDFs and their uncertainties without repeating the full calculation.
- The authors say the grids can support global PDF analyses using exact NNLO calculations instead of K-factors.
Disclosure
- Research title:
- PineAPPL and MATRIX are linked for NNLO interpolation grids
- Authors:
- Simone Devoto, Tomáš Ježo, Stefan Kallweit, Christopher Schwan
- Institutions:
- Koninklijk Nederlands Genootschap voor Fysiotherapie, University of Münster, University of Zurich, University of Würzburg
- Publication date:
- 2026-04-20
- OpenAlex record:
- View
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