title: How to reconcile the Rosenbluth and the polarization transfer methods in the measurement of the proton form factors.
abstract: The apparent discrepancy between the Rosenbluth and the polarization transfer methods for the ratio of the electric to magnetic proton form factors can be explained by a two-photon exchange correction which does not destroy the linearity of the Rosenbluth plot. Though intrinsically small, of the order of a few percent of the cross section, this correction is accidentally amplified in the case of the Rosenbluth method.
authors: SPhN/DAPNIA, CEA Saclay, F91191 Gif sur Yvette, France.
authors: P A M
authors: PA
authors: Guichon
authors: M
authors: M
authors: Vanderhaeghen