Two-Loop Corrections to Bhabha Scattering

Abstract

The two-loop radiative photonic corrections to the Bhabha scattering are computed in the leading order of the small electron mass expansion up to nonlogarithmic term. After including the soft photon bremsstrahlung we obtain the infrared finite result for the differential cross section, which can be directly applied to precise luminosity determination of the present and future $e^{+}{e}^{-}$ colliders.

Eq.(3) corrected

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• A complete set of scalar master integrals for massive 2-loop Bhabha scattering: where we are
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