Two-Loop Correction to Bhabha Scattering

Details Two-Loop Correction to Bhabha Scattering Two-Loop Correction to Bhabha Scattering

2000-10-09

arxiv.org/abs/hep-ph/0010075v1

Phys.Rev.D63:053007,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 22 pages, 1 figure

Scientific paper

10.1103/PhysRevD.63.053007

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.

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