Two-Loop Effects in Low-Energy Electroweak Measurements

A. Aleksejevs, S. Barkanova, V. Zykunov
2016 Nuclear and Particle Physics Proceedings  
We outline the recent results on the two-loop electroweak contributions to the electron-electron scattering cross sections and asymmetries. Although the two-loop corrections are strongly suppressed relative to the one-loop corrections, they still contribute a few percent to the cross section, and even this small contribution cannot be ignored at for ultra-precision experiments such as MOLLER planned at JLab. The NNLO calculation techniques we developed for the electron-electron scattering can
more » ... on scattering can be adapted for electron-proton processes, electron-positron collisions, and other low-energy experiments involving leptons.
doi:10.1016/j.nuclphysbps.2015.09.368 fatcat:p7klarnbrfafdf7e76mewid4zu