MATRIX HAWAII: PineAPPL interpolation grids with MATRIX
S. Devoto, T. Jezo, S. Kallweit, C. Schwan

TL;DR
This paper introduces an interface between PineAPPL and Matrix that enables the creation of NNLO QCD and NLO EW differential cross section interpolation grids, facilitating precise predictions and PDF analyses.
Contribution
It presents the first publicly available tool for NNLO QCD interpolation grids across multiple processes, enhancing accuracy and efficiency in theoretical predictions.
Findings
First NNLO QCD interpolation grids for various processes
Enables rapid predictions with arbitrary PDFs and uncertainties
Supports precise global PDF analyses and future higher-order fits
Abstract
We present an interface between PineAPPL and Matrix, which allows fully differential cross sections to be calculated in the form of interpolation grids, accurate at next-to-next-to-leading order (NNLO) in QCD and next-to-leading order in electroweak (EW) theory. This interface is the first publicly available tool to calculate interpolation grids at NNLO QCD accuracy for a wide set of processes. Interpolation grids provide the functionality to compute predictions for arbitrary parton distribution functions (PDFs) as well as PDF uncertainties without the need to repeat the actual calculation. Another important application of the these grids is to perform global analyses of PDFs using exact NNLO calculations instead of -factors, which have several drawbacks. This exact treatment of NNLO corrections is also an important prerequisite for fitting PDFs at next-to-next-to-next-to-leading…
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Taxonomy
TopicsComputer Graphics and Visualization Techniques · Advanced Numerical Analysis Techniques
