Nucleon Electromagnetic Form Factors

Abstract

There has been much activity in the measurement of the elastic electromagnetic proton and neutron form factors in the last decade, and the quality of the data has been greatly improved by performing double polarization experiments, in comparison with previous unpolarized data. Here we review the experimental data base in view of the new results for the proton, and neutron, obtained at MIT-Bates, MAMI, and JLab. The rapid evolution of phenomenological models triggered by these high-precision experiments will be discussed, including the recent progress in the determination of the valence quark generalized parton distributions of the nucleon, as well as the steady rate of improvements made in the lattice QCD calculations.

71 pages, 43 figures (published version with typos corrected)

References in corpus (6)

• Electromagnetic excitation of the Delta(1232)-resonance
• Dispersion analysis of the nucleon form factors including meson continua
• Measurement of the proton electric to magnetic form factor ratio from \vec ^1H(\vec e, e'p)
• The SAMPLE Experiment and Weak Nucleon Structure
• Updated dispersion-theoretical analysis of the nucleon electromagnetic form factors
• Light baryon magnetic moments and N -> Delta gamma transition in a Lorentz covariant chiral quark approach

Cited by in corpus (25)

• Global analysis of proton elastic form factor data with two-photon exchange corrections
• Towards a fitting procedure for deeply virtual Compton scattering at next-to-leading order and beyond
• Empirical transverse charge densities in the nucleon and the nucleon-to-$\Delta$ transition
• Electromagnetic form factors of the nucleon: new fit and analysis of uncertainties
• Quasielastic axial-vector mass from experiments on neutrino-nucleus scattering
• D-state effects in the electromagnetic N-Delta transition
• Time- and Spacelike Nucleon Electromagnetic Form Factors beyond Relativistic Constituent Quark Models
• Electroweak structure of the nucleon, meson cloud and light-cone wavefunctions
• Electromagnetic Form Factors and Charge Densities From Hadrons to Nuclei
• Hadron structure at low Q^2
• Pion dominance in RPV SUSY induced neutrinoless double beta decay
• The Nucleon Distribution Amplitudes and their application to nucleon form factors and the $N\to \Delta$ transition at intermediate values of $Q^2$
• First Lattice Study of the $N$-$P_{11}(1440)$ Transition Form Factors
• Large-$N_c$ relations for the electromagnetic N to Delta(1232) transition
• Proton Electromagnetic Form Factor Ratios at Low Q^2
• Electromagnetic form factors of the $\Lambda$ and $\Sigma$ baryons in an alternative baryonic current approach
• Nucleon Electromagnetic Form Factors in QCD
• The neutron negative central charge density: an inclusive-exclusive connection
• Model-independent extraction of two-photon effects in elastic electron-proton scattering
• Particle phenomenology on noncommutative spacetime
• Connecting the Breit Frame to the Infinite Momentum Light Front Frame: How G_E turns into F_1
• Overview of nucleon structure studies
• Two Photon Exchange Contributions to Elastic e + p --> e + p Process in a Nonlocal Field Formalism
• Two-photon contributions to the Rosenbluth cross-section in the Skyrme model
• On the physics behind the form factor ratio ${\mu }_p{G}_E^p(Q^2)/G_M^p(Q^2)$