2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/188407We perform a model-independent phenomenological analysis of experimental data on proton form factors ratio. We find that only one of the two photon exchange amplitudes, which we call $δG_M$, is responsible for the discrepancy between Rosenbluth and polarization methods. The linearity of Rosenbluth plots implies that $δG_M$ is approximately linear function of $ε$. The slope of $δG_M$ is extracted from experimental data and is shown to be consistent with theoretical calculations.4 pages, 3 figures, version accepted in Phys.Rev.CHigh Energy Physics - PhenomenologyHigh Energy Physics - ExperimentNuclear ExperimentNuclear Theorytext