PJC: Andrea Barontini "The inclusion of theory errors in a PDF fit: the NNPDF40MHOU PDFset"

Thursday 21 Mar 2024, 12:00 → 14:00 Europe/Rome

Sala Toushek

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.