Two-Loop Correction to Bhabha Scattering
High Energy Physics - Phenomenology
2010-11-15 v1 High Energy Physics - Experiment
Abstract
We present the two-loop virtual QED corrections to e^+ e^- to mu^+ mu^- and Bhabha scattering in dimensional regularization. The results are expressed in terms of polylogarithms. The form of the infrared divergences agrees with previous expectations. These results are a crucial ingredient in the complete next-to-next-to-leading order QED corrections to these processes. A future application will be to reduce theoretical uncertainties associated with luminosity measurements at e^+ e^- colliders. The calculation also tests methods that may be applied to analogous QCD processes.
Cite
@article{arxiv.hep-ph/0010075,
title = {Two-Loop Correction to Bhabha Scattering},
author = {Z. Bern and L. Dixon and A. Ghinculov},
journal= {arXiv preprint arXiv:hep-ph/0010075},
year = {2010}
}
Comments
Latex, 22 pages, 1 figure