Two-Photon Exchange and Electromagnetic Proton Form Factors

Abstract

The presence of $2\gamma$-exchange in electron proton elastic scattering is discussed. From C-invariance and crossing symmetry, $2\gamma$ contribution induces a specific dependence of the reduced cross section on the variable $\epsilon$. No evidence of such dependence exists in the available experimental data.

4 pages, Contributed papers to Baryon 04

References in corpus (4)

• Precision Rosenbluth measurement of the proton elastic form factors
• Measurements of electron-proton elastic cross sections for $0.4<Q^2<5.5(GeV/c{)}^2$
• Model independent properties of two-photon exchange in elastic electron proton scattering
• Polarization effects in elastic electron-proton scattering