The effect of vacuum polarisation on muon-proton scattering at small energies and angles

Abstract

We give a compact expression for the unpolarised differential cross section for muon-proton scattering in the one photon exchange approximation. The effect of adding the vacuum polarisation amplitude to the no-spin-flip amplitude for one photon exchange is calculated at small energies and scattering angles and is found to be negligible for present experiments.

Comments: 6 pages, one figure