Two photon exchange contribution to small angle $\mu p$ and $ep$ elastic scattering

TL;DR

This paper investigates the impact of two-photon exchange corrections on small-angle muon-proton and electron-proton elastic scattering, focusing on how these corrections affect cross-section ratios.

Contribution

It provides a detailed analysis of two-photon exchange effects in small-angle elastic scattering for muons and electrons, which is a novel focus in this context.

Findings

Two-photon corrections significantly influence scattering cross sections.

The expected muon-to-electron cross-section ratio is affected by these corrections.

Results help refine theoretical models of elastic scattering processes.

Abstract

We consider the role of the two-photon corrections to the small angle $\mu p$ and $ep$ elastic scattering and the expected $\sigma(\mu^- p)/\sigma(\mu^+ p)$ ratio.