2003/08/22 by J. D. Ashley, Jonathan D. Ashley, Derek B. Leinweber +3 · 2 citations
Physics and Astronomy · #Chiral perturbation theory #Electroweak interaction #Hadron #High-Energy Particle Collisions Research #Lattice (music) #Lattice QCD #Lattice field theory #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Theoretical physics #hep-lat
paper · pdf · doi:10.1140/epjad/s2004-03-002-4
published as Eur.Phys.J.A19:9-14,2004 · 6 pages, 10 figures. Presented by A. Thomas, International Conference on Perspectives in Hadronic Physics at ICTP Trieste May 2003
arxiv created 2003/08/22 · openalex publication_date 2004/02/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
It is imperative that lattice QCD serve to develop our understanding of hadron structure and, where possible, to guide the interpretation of experimental data. There is now a great deal of effort directed at the calculation of the electroweak form factors of the nucleon, where for example, measurements at Jefferson Laboratory have recently revealed surprising behaviour in the ratio GE/GM. While, for the present, calculations within the framework of lattice QCD are limited to relatively large quark mass, there has been considerable progress in our understanding of how to extrapolate to the chiral limit. Here we report the results of the application of these techniques to the most recent form factor data from the QCDSF Collaboration. The level of agreement with all of the form factors, for Q2 below 1 GeV2, is already impressive.