Orateur
Andrea Barontini
(University of Milan)
Description
We include uncertainties due to missing higher order corrections to QCD computations (MHOU) used in the determination of parton distributions (PDFs) in the recent NNPDF4.0 set of PDFs. We use our previously published methodology, based on the treatment of MHOUs and their full correlations through a theory covariance matrix determined by scale variation, now fully incorporated in the new NNPDF theory pipeline. We assess the impact of the inclusion of MHOUs on the NNPDF4.0 central values and uncertainties. We also show how this formalism can be used to produce approximate N3LO PDF sets, using N3LO ingredients when they are known and assessing the impact of the unknown ingredients through a theory covariance matrix.
Auteur principal
Andrea Barontini
(University of Milan)
