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arXiv · 1012.0564

Determination of two-photon exchange amplitudes from elastic electron-proton scattering data

Julia Guttmann·Nikolai Kivel·Mehdi Meziane·Marc Vanderhaeghen
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Abstract

Using the available cross section and polarization data for elastic electron-proton scattering, we provide an extraction of the two-photon exchange amplitudes at a common value of four-momentum transfer, around Q^2 = 2.5 GeV^2. This analysis also predicts the e^+ p / e^- p elastic scattering cross section ratio, which will be measured by forthcoming experiments.

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Julia Guttmann, Nikolai Kivel, Mehdi Meziane, Marc Vanderhaeghen. 2010-12-02. Determination of two-photon exchange amplitudes from elastic electron-proton scattering data. https://doi.org/10.1140/epja/i2011-11077-4

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