PineAPPL: combining EW and QCD corrections for fast evaluation of LHC processes

TL;DR

PineAPPL is a library that creates rapid interpolation grids for LHC process cross sections, incorporating both electroweak and QCD corrections, enabling precise and efficient theoretical predictions.

Contribution

It introduces a versatile tool that combines EW and QCD corrections in a single framework, improving the accuracy of LHC process simulations.

Findings

Accurate to next-to-leading order in strong and electroweak couplings.

Interfaced with MadGraph5_aMC@NLO for validation.

Provides recommendations for experimental data formats.

Abstract

We introduce PineAPPL, a library that produces fast-interpolation grids of physical cross sections, computed with a general-purpose Monte Carlo generator, accurate to fixed order in the strong, electroweak, and combined strong-electroweak couplings. We demonstrate this unique ability, that distinguishes PineAPPL from similar software available in the literature, by interfacing it to MadGraph5_aMC@NLO. We compute fast-interpolation grids, accurate to next-to-leading order in the strong and electroweak couplings, for a representative set of LHC processes for which EW corrections may have a sizeable effect on the accuracy of the corresponding theoretical predictions. We formulate a recommendation on the format of the experimental deliverables in order to consistently compare them with computations that incorporate EW corrections, and specifically to determine parton distribution functions to the same accuracy.