Proton radii and two-photon exchange

Abstract

We investigate the effect of two-photon exchange processes upon the rms- and Zemach radii extracted from electron-proton scattering. We find that the changes are small and do not help to explain the discrepancy between experimental and calculated HFS in the hydrogen atom.

arXiv comment2 pages, 1 figure

References in corpus (8)

• Theory of Light Hydrogenlike Atoms
• Two-photon exchange and elastic electron-proton scattering
• On the rms-radius of the proton
• Two-photon exchange in elastic electron-nucleon scattering
• $\Delta$ resonance contribution to two-photon exchange in electron-proton scattering
• Zemach Moments for Hydrogen and Deuterium
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• Constraints on proton structure from precision atomic physics measurements

Cited by in corpus (40)

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• Thermal corrections to the bound-electron $g$-factor
• Muonic hydrogen as a quantum gravimeter
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• Radiative corrections to the level width in the presence of magnetic field
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