# Transverse Force Distributions in the Proton using Lattice QCD

#### Transverse Force Distributions in the Proton using Lattice QCD

- Event time: 2:00pm until 3:00pm
- Event date: 17th July 2024
- Speaker: Joshua Crawford (University of Adelaide)
- Location: Higgs Centre Seminar Room, Room 4305, James Clerk Maxwell Building (JCMB) (James Clerk Maxwell Building (JCMB)) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB

### Event details

Title:

Transverse Force Distributions in the Proton using Lattice QCD

Abstract:

Asymmetries observed in deep-inelastic scattering experiments offer important insights into the structure and dynamics within the proton. The Sivers asymmetry provides information about the transverse momentum of the struck quark and can be related to final state interactions. We present a lattice QCD calculation of the spatial distribution of a colour-Lorentz force which acts on the struck quark. We determine a spin-independent confining force and a spin-dependent force distribution with local forces larger than the QCD string tension. These force distributions offer a new, complimentary perspective on the Sivers asymmetry in transversely polarised deep-inelastic scattering.

### About Particle Physics Theory seminars

The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..