Univ. of Manitoba, Canada
Two-photon exchange of electron-proton scattering
Two photon exchange contributions to elastic electron-proton scattering
are small in magnitude, but have a strong angular dependence at fixed Q2.
This is significant for the Rosenbluth technique for determining the ratio
of electric and magnetic form factors of the proton at high Q2. In this
talk I will discuss recent estimates of two-photon exchange effects on
both Rosenbluth and polarization transfer experiments.
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