DIS2023: XXX International Workshop on Deep-Inelastic Scattering and Related Subjects

Approximate N$^3$LO PDFs and theoretical uncertainties

28 Mar 2023, 10:50

20m

Auditorium (MSU Kellogg Center)

Parallel talk WG1: Structure Functions and Parton Densities WG 1

Speakers

Dr Lucian Harland-Lang (University College London) Robert Samuel Thorne (University College London (UK)) Thomas Cridge (DESY)

Description

We consider the extension of the MSHT20 PDFs to an approximate N$^3$LO order. We describe the parameterisation of the missing N$^3$LO contributions and the determination of the theoretical uncertainties and their interpretation. We examine the impact of further data sets and look at the stability of predicted cross sections.

Presentation materials

MSHT20aN3LO_talk_DIS23.pdf