Search for evidence of two-photon exchange in new experimental high momentum transfer data on electron deuteron elastic scattering

The possible contribution of two-photon exchange to electron deuteron elastic scattering at relatively high momentum transfer is discussed. This study was motivated by the high precision data recently obtained at the Jefferson Laboratory. Using general arguments, based on crossing symmetry for the processes $e^{-}+\overrightarrow{h}{e}^{-}+h$ and $e^{+}{+e}^{-}\to h+\overline{h},$ we find a parametrization for the angular dependence of the interference between the one- and two-photon exchanges in the differential cross section for elastic $\mathrm{ed}$ scattering in terms of a new kinematical variable and compare our findings to the recent data.