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arXiv · 1703.03874

Two-photon exchange in elastic electron-proton scattering

A. Afanasev·P. G. Blunden·D. Hasell·B. A. Raue
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Abstract

We review recent theoretical and experimental progress on the role of two-photon exchange (TPE) in electron-proton scattering at low to moderate momentum transfers. We make a detailed comparison and analysis of the results of competing experiments on the ratio of e+p to e-p elastic scattering cross sections, and of the theoretical calculations describing them. A summary of the current experimental situation is provided, along with an outlook for future experiments.

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A. Afanasev, P. G. Blunden, D. Hasell, B. A. Raue. 2017-03-10. Two-photon exchange in elastic electron-proton scattering. https://doi.org/10.1016/j.ppnp.2017.03.004

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