Two-photon Exchange in Electron-proton Elastic Scattering: Theory Update
نویسنده
چکیده
Recent theoretical developments in the studies of two-photon exchange effects in elastic electron-proton scattering are reviewed. Two-photon exchange mechanism is considered a likely source of discrepancy between polarized and unpolarized experimental measurements of the proton electric form factor at momentum transfers of several GeV. This mechanism predicts measurable effects that are currently studied experimentally.
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