Chambers, AJ, Dragos, J, Horsley, R, Nakamura, Y, Perlt, H, Pleiter, D, Rakow, PEL ORCID: 0000-0003-4486-2158, Schierholz, G, Schiller, A, Somfleth, K et al (show 3 more authors)
(2017)
Electromagnetic form factors at large momenta from lattice QCD.
PHYSICAL REVIEW D, 96 (11).
114509-.
Text
PhysRevD.96.114509.pdf - Published version Download (521kB) |
Abstract
Accessing hadronic form factors at large momentum transfers has traditionally presented a challenge for lattice QCD simulations. Here, we demonstrate how a novel implementation of the Feynman-Hellmann method can be employed to calculate hadronic form factors in lattice QCD at momenta much higher than previously accessible. Our simulations are performed on a single set of gauge configurations with three flavors of degenerate mass quarks corresponding to mπ≈470 MeV. We are able to determine the electromagnetic form factors of the pion and nucleon up to approximately 6 GeV2, with results for the ratio of the electric and magnetic form factors of the proton at our simulated quark mass agreeing well with experimental results.
Item Type: | Article |
---|---|
Depositing User: | Symplectic Admin |
Date Deposited: | 10 Dec 2018 16:45 |
Last Modified: | 15 Mar 2024 07:29 |
DOI: | 10.1103/PhysRevD.96.114509 |
Open Access URL: | https://arxiv.org/abs/1702.01513 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3029661 |