Two-photon exchange in elastic electron-proton scattering

Abstract

We review recent theoretical and experimental progress on the role of two-photon exchange (TPE) in electron-proton scattering at low to moderate momentum transfers. We make a detailed comparison and analysis of the results of competing experiments on the ratio of e+p to e-p elastic scattering cross sections, and of the theoretical calculations describing them. A summary of the current experimental situation is provided, along with an outlook for future experiments.

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Cited by in corpus (61)

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• Precision Studies of QCD in the Low Energy Domain of the EIC
• QED at NNLO with McMule
• A dispersive approach to two-photon exchange in elastic electron-proton scattering
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• Dispersion-theoretical analysis of the electromagnetic form factors of the nucleon: Past, present and future
• Extraction of Generalized Parton Distribution Observables from Deeply Virtual Electron Proton Scattering Experiments
• An experimental program with high duty-cycle polarized and unpolarized positron beams at Jefferson Lab
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• Meson exchange in lepton-nucleon scattering and proton radius puzzle
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• Updated analysis of recent results on electron and positron elastic scattering on proton
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• Polarization Transfer in Weak Pion Production off the Nucleon
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• Measurement of the Charge-Averaged Elastic Lepton-Proton Scattering Cross Section by the OLYMPUS Experiment
• Model independent radiative corrections to elastic deuteron-electron scattering
• Lepton mass effects for beam-normal single-spin asymmetry in elastic muon-proton scattering
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• A theory vade mecum for PSI experiments
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• Dispersive Corrections to the Born Approximation in Elastic Electron-Nucleus Scattering in the Intermediate Energy Regime
• Parity-Violating Inelastic Electron-Proton Scattering at Low $Q^2$ Above the Resonance Region
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• Disperon QED
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• Polarization Observables using Positron Beams
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• A measurement of two-photon exchange in Super-Rosenbluth separations with positron beams
• Radiative corrections in proton--antiproton annihilation to electron-positron and their application to the PANDA experiment
• Test of streaming and triggered readout schemes for the TPEX Lead Tungstate Calorimeter
• Super-Rosenbluth Measurements with Electrons and Positrons
• Resonance Contributions to Radiative Corrections in Charged-Current Elastic (Anti)Neutrino-Nucleon Scattering at GeV Energies
• Direct TPE Measurement via $e^{+}p/e^{-}p$ Scattering at low $\epsilon$ in Hall A
• Accessing baryon-antibaryon generalized distribution amplitudes in $e^{\pm }\gamma \to e^{\pm }B\bar{B}$
• Charged-averaged elastic lepton-proton scattering cross section results from OLYMPUS
• Baryon Form Factors
• Positrons at JLab - Advancing Nuclear Science in Hall B
• Axial meson contribution to proton form factors