Single--Spin Asymmetries in the Bethe--Heitler Process $e^{-}+p\to e^{-}+\gamma +p$ from QED Radiative Corrections

Andrei V. Afanasev, M. I. Konchatnij, N. P. Merenkov

We derived analytic formulae for the polarization single--spin asymmetries (SSA) in the Bethe--Heitler process $e^{-}+p\to e^{-}+\gamma +p$. The asymmetries arise due to one-loop QED r…