QED Radiative Corrections to Low-Energy Moller and Bhabha Scattering

TL;DR

This paper develops a comprehensive method for calculating next-to-leading-order QED radiative corrections to low-energy Moller and Bhabha scattering, including both soft and hard photon emissions, applicable to various experiments.

Contribution

It extends existing soft-photon corrections with new hard-photon bremsstrahlung calculations without ultra-relativistic assumptions, broadening applicability.

Findings

Provides a unified treatment of radiative corrections at any photon energy.

Applicable to experiments like OLYMPUS and DarkLight at low energies.

Enhances accuracy of QED predictions for electron scattering processes.

Abstract

We present a treatment of the next-to-leading-order radiative corrections to unpolarized Moller and Bhabha scattering without resorting to ultra-relativistic approximations. We extend existing soft-photon radiative corrections with new hard-photon bremsstrahlung calculations so that the effect of photon emission is taken into account for any photon energy. This formulation is intended for application in the OLYMPUS experiment and the upcoming DarkLight experiment, but is applicable to a broad range of experiments at energies where QED is a sufficient description.