Experimental constraints on non-linearities induced by two-photon effects in elastic and inelastic Rosenbluth separations

Abstract

The effects of two-photon exchange corrections, suggested to explain the difference between measurements of the proton elastic electromagnetic form factors using the polarization transfer and Rosenbluth techniques, have been studied in elastic and inelastic scattering data. Such corrections could introduce epsilon-dependent non-linearities in inelastic Rosenbluth separations, where epsilon is the virtual photon polarization parameter. It is concluded that such non-linear effects are consistent with zero for elastic, resonance, and deep-inelastic scattering for all Q^2 and W^2 values measured.

6 pages, 5 figures, 2 tables. To be submitted to Phys. Rev. C

References in corpus (19)

• Measurement of GEp/GMp in ep -> ep to Q2 = 5.6 GeV2
• Proton elastic form factor ratios to $Q^2$ = 3.5 GeV${}^2$ by polarization transfer
• Two-photon exchange and elastic electron-proton scattering
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• $\Delta$ resonance contribution to two-photon exchange in electron-proton scattering
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• Evidence for two-photon exchange contributions in electron-proton and positron-proton elastic scattering
• Model independent properties of two-photon exchange in elastic electron proton scattering
• Extraction of two-photon contributions to the proton form factors
• Search for evidence of two photon contribution in elastic electron proton data
• Radiative Corrections to Elastic Electron-Proton Scattering for Polarized Electrons

Cited by in corpus (44)

• Electromagnetic excitation of the Delta(1232)-resonance
• Global analysis of proton elastic form factor data with two-photon exchange corrections
• Nucleon electromagnetic form factors
• Review of two-photon exchange in electron scattering
• Empirical Fit to Precision Inclusive Electron-Proton Cross Sections in the Resonance Region
• Two-Photon Physics in Hadronic Processes
• Proton and neutron electromagnetic form factors and uncertainties
• Aspects of Hadron Physics
• Two-photon exchange in elastic electron-proton scattering
• Polarization Transfer Observables in Elastic Electron Proton Scattering at $Q^2=$2.5, 5.2, 6.8, and 8.5 GeV${}^2$
• Proton G_E/G_M from beam-target asymmetry
• Flavor decomposition of the nucleon electromagnetic form factors
• Precise determination of low-Q nucleon electromagnetic form factors and their impact on parity-violating e-p elastic scattering
• Measurement of two-photon exchange effect by comparing elastic $e^{\pm }p$ cross sections
• Is there model-independent evidence of the two-photon-exchange effect in the electron-proton elastic scattering cross section?
• Perturbative QCD predictions for two-photon exchange
• Phenomenological analysis of two-photon exchange effects in proton form factor measurements
• On Delta resonance contribution to two-photon exchange amplitude
• Nucleon Form Factors - A Jefferson Lab Perspective
• Reexamination of phenomenological two-photon exchange corrections to the proton form factors and e+-p scattering
• Electromagnetic nucleon form factors in instant and point form
• Feasibility studies of the time-like proton electromagnetic form factor measurements with PANDA at FAIR
• Two-photon exchange amplitudes for the elastic $ep$ scattering at Q^2=2.5 GeV^2 from the experimental data
• Comparison of Neural Network and Hadronic Model Predictions of Two-Photon Exchange Effect
• Form Factors and Two-Photon Exchange in High-Energy Elastic Electron-Proton Scattering
• Demonstration of a novel technique to measure two-photon exchange effects in elastic $e^{\pm }p$ scattering
• Measurements of the Separated Longitudinal Structure Function F_L from Hydrogen and Deuterium Targets at Low Q^2
• Two-Photon Exchange Effect Studied with Neural Networks
• Phenomenological extraction of two-photon exchange amplitudes from elastic electron-proton scattering cross section data
• How much two-photon exchange is needed to resolve the proton form factor discrepancy?
• Calculation of two-photon exchange effects for $\Delta$ production in electron-proton collisions
• Unpolarized structure functions at Jefferson Lab
• The ratio of $e^{\pm }p$ scattering cross sections predicted from the global fit of elastic $ep$ data
• Study of Two-Photon Exchange via the Beam Transverse Single Spin Asymmetry in Electron-Proton Elastic Scattering at Forward Angles over a Wide Energy Range
• Up- and Down-Quark Contributions to the Nucleon Form Factors
• Rosenbluth Nonlinearity from Two-Photon Exchange
• Measuring the lepton sign asymmetry in elastic electron-proton scattering with OLYMPUS
• Gauge Invariant Two-Photon-Exchange Contributions in $e^{-}{\pi }^{+}\to e^{-}{\pi }^{+}$
• Two-photon exchange in electron-trinucleon elastic scattering
• Improved radiative corrections and proton charge form factor from the Rosenbluth separation technique
• A measurement of two-photon exchange in Super-Rosenbluth separations with positron beams
• Direct TPE Measurement via $e^{+}p/e^{-}p$ Scattering at low $\epsilon$ in Hall A
• Super-Rosenbluth Measurements with Electrons and Positrons
• Logarithmic corrections and soft photon phenomenology in the multipole model of the nucleon form factors