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Aug 4 – 7, 2020
online
Asia/Tokyo timezone

Compton amplitude via the Feynman-Hellman theorem

Aug 7, 2020, 4:20 PM
20m
online

online

Hadron Structure Hadron Structure

Speaker

K. Utku Can (*) (University of Adelaide)

Description

In this talk, we highlight our group's recent developments on computing the Compton amplitude in a lattice approach. We briefly discuss how to access the Compton amplitude directly via the second-order Feynman-Hellmann theorem. As an application, we compute the nucleon Compton tensor across a range of photon momenta at an unphysical quark mass. This enables us to study the $Q^2$ dependence of the low moments of the nucleon structure functions in a lattice calculation for the first time. We discuss possible further applications of this approach.

Primary author

K. Utku Can (*) (University of Adelaide)

Co-authors

Presentation materials