Hannaford-Gunn, Alec, Horsley, Roger, Perlt, Holger, Rakow, Paul 
ORCID: 0000-0003-4486-2158, Schierholz, Gerrit, Stuben, Hinnerk, Young, Ross, Zanotti, James and Can, Kadir Utku
(2022)
Generalised Parton Distributions from Lattice Feynman-Hellmann Techniques.
In: The 38th International Symposium on Lattice Field Theory, 2021-7-25 - ?.
Abstract
We report on the use of Feynman-Hellmann techniques to calculate the off-forward Compton amplitude (OFCA) in lattice QCD. At leading-twist, the Euclidean OFCA is parameterised by the Mellin moments of generalised parton distributions (GPDs). Hence we extract GPD moments for two values of the soft momentum transfer, t = −1.10, −2.20 GeV2 and zero-skewness kinematics at an unphysical pion mass of mπ ≈ 470 MeV. This includes the first determination of the n = 4 moments.
| Item Type: | Conference or Workshop Item (Unspecified) |
|---|---|
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 13 Sep 2022 14:32 |
| Last Modified: | 15 Mar 2024 15:19 |
| DOI: | 10.22323/1.396.0088 |
| Open Access URL: | https://arxiv.org/pdf/2202.03662.pdf |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3164562 |
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