2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/200771Leading electroweak corrections play an important role in precision measurements of the strange form factors. We calculate the two-photon-exchange (TPE) and $γZ$-exchange corrections to the parity-violating asymmetry of the elastic electron-proton scattering in a simple hadronic model including the finite size of the proton. We find both can reach a few percent and are comparable in size with the current experimental measurements of strange-quark effects in the proton neutral weak current. The effect of $γZ$-exchange is in general larger than that of TPE, especially at low momentum transfer $Q^2\le 1 GeV^2$. Their combined effects on the values of $G^s_E+βG^s_M$ extracted in recent experiments can be as large as -40% in certain kinematics.4 pages, 3 FigsHigh Energy Physics - PhenomenologyNuclear Theorytext