Search for evidence of two photon contribution in elastic electron proton data

Abstract

We reanalyze the most recent data on elastic electron proton scattering. We look for a deviation from linearity of the Rosenbluth fit to the differential cross section, which would be the signature of the presence of two photon exchange. The two photon contribution is parametrized by a one parameter formula, based on symmetry arguments. The present data do not show evidence for such deviation.

arXiv comment15 pages 3 figures More details on the fitting procedure, more explicit explanations

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Cited by in corpus (30)

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• Is there model-independent evidence of the two-photon-exchange effect in the electron-proton elastic scattering cross section?
• General analysis of polarization phenomena in $e^{+}+e^{-}\to N+\bar{N}$ for axial parametrization of two--photon exchange
• Reexamination of phenomenological two-photon exchange corrections to the proton form factors and e+-p scattering
• The OLYMPUS Experiment
• Feasibility studies of the time-like proton electromagnetic form factor measurements with PANDA at FAIR
• 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
• Two-Photon Exchange Effect Studied with Neural Networks
• Search for two photon exchange from $e^{+}+e^{-}\to p+\bar{p}+\gamma$ data
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• On radiative corrections for unpolarized electron proton elastic scattering
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• 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
• Rosenbluth Nonlinearity from Two-Photon Exchange
• The two photon exchange amplitude in $ep$ and $e\mu$ elastic scattering: a comparison
• Measuring the lepton sign asymmetry in elastic electron-proton scattering with OLYMPUS
• General analysis of two--photon exchange in elastic electron--${}^{4}He$ scattering and $e^{+}+e^{-}\to {\pi }^{+}+{\pi }^{-}.$
• Phenomenological insight into JLab proton polarization data puzzle by deuteron impulse approximation
• Improved radiative corrections and proton charge form factor from the Rosenbluth separation technique
• Resonances contribution to two-photon exchange effects and possible large forward-backward asymmetry in $e^{+}{e}^{-}\to p\bar{p}$
• Cross section and polarization observables for the reaction $e^{+}+e^{-}\to a_1(1260)+\pi$
• From theory to experiment: hadron electromagnetic form factors in space-like and time-like regions
• Two-photon contributions to the Rosenbluth cross-section in the Skyrme model