2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/178205We 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.2 pages, 1 figureNuclear TheoryAtomic Physicstext