New constraints on the up-quark valence distribution in the proton

30 Mar 2023, 10:50
20m
Auditorium (Kellogg Center, MSU)

Auditorium

Kellogg Center, MSU

https://kelloggcenter.com/sites/default/files/files/FloorPlan-Capacities-2.pdf
Parallel talk WG1: Structure Functions and Parton Densities WG 1

Speaker

Andrii Verbytskyi (Max Planck Society (DE))

Description

The high-x data from the ZEUS Collaboration are used to extract parton density distributions of the proton deep in the perturbative regime of QCD. The data primarily constrain the up-quark valence distribution and new results are presented on its x-dependence as well as on the momentum carried by the up-quark. The results were obtained using Bayesian analysis methods which can serve as a model for future parton density extractions.

Submitted on behalf of a Collaboration? No
Participate in poster competition? No

Primary authors

Allen Caldwell (Max-Planck-Institut fur Physik (DE)) Andrii Verbytskyi (Max Planck Society (DE)) Francesca Capel (Technische Universität München) Michiel Botje (Nikhef National institute for subatomic physics (NL)) Oliver Schulz (Max Planck Society (DE)) Ritu Aggarwal

Presentation materials