Elastic lepton-proton two-photon exchange scattering: An exact HB$\chi$PT analysis including hadronic effects at NNLO

Rakshanda Goswami, Pulak Talukdar, Bhoomika Das +2

We present an exact analytical evaluation of the two-photon exchange (TPE) correction to the elastic lepton-proton differential scattering cross section at low-energies within the…