Nucleon electromagnetic form factors on the lattice and in chiral effective field theory
M. G\"ockeler, T. R. Hemmert, R. Horsley, D. Pleiter, P. E. L. Rakow,, A. Sch\"afer, G. Schierholz
TL;DR
This paper calculates nucleon electromagnetic form factors using quenched lattice QCD with improved Wilson fermions and compares the results to phenomenological data and chiral effective field theory.
Contribution
It provides a lattice QCD computation of nucleon form factors and compares them with phenomenological and chiral EFT predictions, highlighting consistencies and discrepancies.
Findings
Form factors computed with quenched lattice QCD.
Comparison with phenomenology shows qualitative agreement.
Chiral effective field theory comparisons reveal areas of agreement and deviation.
Abstract
We compute the electromagnetic form factors of the nucleon in quenched lattice QCD, using non-perturbatively improved Wilson fermions, and compare the results with phenomenology and chiral effective field theory.
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