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Second order contributions to elastic large-angle Bhabha scattering cross-section

A. B. Arbuzov·E. A. Kuraev·B. G. Shaikhatdenov
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Abstract

The cross-section of (quasi-)elastic large-angle electron-positron scattering at high energies is calculated. Radiative corrections of the orders O(α^2 L^2) and O(α^2 L), besides pure two-loop box contributions, are explicitly calculated. In the second order we considered the following sources of corrections: 1) Virtual photonic corrections coming from squares of 1-loop level amplitudes and their relevant interferences (vertex-type and box-type Feynman diagrams). 2) Double soft photon emission and one-loop corrections to single soft photon emission. The results are presented in an analytical form.

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A. B. Arbuzov, E. A. Kuraev, B. G. Shaikhatdenov. 1998-07-31. Second order contributions to elastic large-angle Bhabha scattering cross-section. https://doi.org/10.1142/s021773239800245x

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