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 (12)

• 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
• The nucleon electromagnetic form factors from Lattice QCD
• Proton G_E/G_M from beam-target asymmetry
• Updated dispersion-theoretical analysis of the nucleon electromagnetic form factors
• The structure function method applied to polarized and unpolarized electron-proton scattering: a solution of the G_E(p)/G_M(p) discrepancy
• Extraction of the Neutron Magnetic Form Factor from Quasi-Elastic 3He(pol)(e(pol),e') at Q^2 = 0.1 - 0.6 (GeV/c)^2
• Light baryon magnetic moments and N -> Delta gamma transition in a Lorentz covariant chiral quark approach
• Convergence of the chiral expansion for the nucleon mass
• Shapes of the Nucleon

Cited by in corpus (61)

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• Electromagnetic form factors of ${\Lambda }_b$ in the Bethe-Salpeter equation approach
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• Polarization observables in lepton-deuteron elastic scattering including the lepton mass
• Theoretical Analysis of the $p\bar{p}\to {\pi }^0{e}^{+}{e}^{-}$ Process within a Regge Framework
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• Connecting the Breit Frame to the Infinite Momentum Light Front Frame: How G_E turns into F_1
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• A Vision of Hadronic Physics
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• On the physics behind the form factor ratio ${\mu }_p{G}_E^p(Q^2)/G_M^p(Q^2)$