Comment on "High-Precision Determination of the Electric and Magnetic Form Factors of the Proton"

Abstract

In a recent Letter, Bernauer, et al. present fits to the proton electromagnetic form factors, GEp(Q^2) and GMp(Q^2), along with extracted proton charge and magnetization radii based on large set of new, high statistical precision (<0.2%) cross section measurements. The Coulomb corrections they apply differ dramatically from more modern and complete calculations, implying significant error in their final results.

To appear as a comment in Physical Review Letters

References in corpus (3)

• High-precision determination of the electric and magnetic form factors of the proton
• Global analysis of proton elastic form factor data with two-photon exchange corrections
• Two-photon exchange at low Q^2

Cited by in corpus (22)

• CODATA Recommended Values of the Fundamental Physical Constants: 2010
• Muonic hydrogen and the proton radius puzzle
• The electric and magnetic form factors of the proton
• The Proton Radius Puzzle
• High Precision Measurement of the Proton Elastic Form Factor Ratio ${\mu }_p{G}_E/G_M$ at low $Q^2$
• Extraction of the proton radius from electron-proton scattering data
• Proton and neutron electromagnetic form factors and uncertainties
• The size of the proton - closing in on the radius puzzle
• Theoretical Constraints and Systematic Effects in the Determination of the Proton Form Factors
• Low Q^2 measurements of the proton form factor ratio $m{u}_p{G}_E/G_M$
• Flavor decomposition of the nucleon electromagnetic form factors
• Measurement of two-photon exchange effect by comparing elastic $e^{\pm }p$ cross sections
• Dispersion-theoretical analysis of the electromagnetic form factors of the nucleon: Past, present and future
• Proton radius from electron-proton scattering and chiral perturbation theory
• Evaluation of the strength of electron-proton scattering data for determining the proton charge radius
• Reexamination of phenomenological two-photon exchange corrections to the proton form factors and e+-p scattering
• The Proton Radius from Bayesian Inference
• Comparison of Neural Network and Hadronic Model Predictions of Two-Photon Exchange Effect
• Demonstration of a novel technique to measure two-photon exchange effects in elastic $e^{\pm }p$ scattering
• Model-independent determination of the magnetic radius of the proton from spectroscopy of ordinary and muonic hydrogen
• The recoil correction to the proton-finite-size contribution to the Lamb shift in muonic hydrogen
• Proton Charge Radius and Precision Tests of QED