3 papers
hep-lat2020
Lattice QCD evaluation of the Compton amplitude employing the Feynman-Hellmann theorem
K. U. Can, A. Hannaford-Gunn, R. Horsley +8
The forward Compton amplitude describes the process of virtual photon scattering from a hadron and provides an essential ingredient for the understanding of hadron structure. As a…
hep-lat2020
Structure functions from the Compton amplitude
CSSM collaboration, Roger Horsley, Yoshifumi Nakamura +6
We have initiated a program to compute the Compton amplitude from lattice QCD with the Feynman-Hellman method. This amplitude is related to the structure function via a Fredholm in…
hep-lat2020
Scaling and higher twist in the nucleon Compton amplitude
A. Hannaford-Gunn, R. Horsley, Y. Nakamura +7
The partonic structure of hadrons plays an important role in a vast array of high-energy and nuclear physics experiments. It also underpins the theoretical understanding of hadron…