Joint INFN-UNIMI-UNIMIB Pheno Seminars

The proton content at approximate N3LO accuracy

by Roy Stegeman

Aula Caldirola (Università degli Studi di Milano)

Aula Caldirola

Università degli Studi di Milano

Via Celoria 16, 20133 Milano

Abstract: In recent years the accuracy of PDF determinations has significantly improved due to a combination of experimental and theoretical developments. In this talk, I will discuss recent progress towards the extension of the PDF determination to approximate N3LO in QCD and NLO in QED, and their phenomenological implications for a number of LHC processes. I will also present a simultaneous extraction of the strong coupling constant and the PDFs based on the NNPDF4.0 dataset, taking correlations between them into account. We show how we can validate our determination of the strong coupling by performing a closure test.