Model independent properties of two-photon exchange in elastic electron proton scattering

Abstract

We derive from first principles, as the C-invariance of the electromagnetic interaction and the crossing symmetry, the general properties of two-photon exchange in electron-proton elastic scattering. We show that the presence of this mechanism destroys the linearity of the Rosenbluth separation.

12 pages, no figures- Corrected misprints, changes in P. 7. No changes in conclusions

References in corpus (9)

• The ratio of proton's electric to magnetic form factors measured by polarization transfer
• Measurement of GEp/GMp in ep -> ep to Q2 = 5.6 GeV2
• Two-photon exchange and elastic electron-proton scattering
• How to reconcile the Rosenbluth and the polarization transfer method in the measurement of the proton form factors
• Radiative Corrections to Electron-Proton Scattering
• Large Momentum Transfer Measurements of the Deuteron Elastic Structure Function A(Q^2) at Jefferson Laboratory
• A precise measurement of the deuteron elastic structure function A(Q^2)
• Polarization phenomena in elastic $e^{\mp }N$ scattering, for axial parametrization of two-photon exchange
• The complete experiment for $e^{\mp }N$ elastic scattering in presence of two-photon exchange

Cited by in corpus (52)

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• Feasibility studies of the time-like proton electromagnetic form factor measurements with PANDA at FAIR
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• Two-Photon Exchange Contribution to Proton Form Factors in Time-Like region
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• Phenomenological extraction of two-photon exchange amplitudes from elastic electron-proton scattering cross section data
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• Model independent study of massive lepton elastic scattering on the proton, beyond the Born approximation
• Updated analysis of recent results on electron and positron elastic scattering on proton
• The ratio of $e^{\pm }p$ scattering cross sections predicted from the global fit of elastic $ep$ data
• Form factor ratio from unpolarized elastic electron proton scattering
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• The two photon exchange amplitude in $ep$ and $e\mu$ elastic scattering: a comparison
• Two-photon exchange: myth and history
• Extraction of proton form factors in the timelike region from unpolarized e+e- --> p pbar events
• General analysis of two--photon exchange in elastic electron--${}^{4}He$ scattering and $e^{+}+e^{-}\to {\pi }^{+}+{\pi }^{-}.$
• Measuring the lepton sign asymmetry in elastic electron-proton scattering with OLYMPUS
• Extraction of proton form factors in the timelike region from single-polarized e+ e- -> \vec p anti-p events
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• Two-Boson Exchange Physics: A Brief Review
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• The Nucleon Elastic Form Factors
• Ratio of the proton electromagnetic form factors from meson dressing
• Logarithmic corrections and soft photon phenomenology in the multipole model of the nucleon form factors
• Two Photon Exchange Contributions to Elastic e + p --> e + p Process in a Nonlocal Field Formalism
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