Second order contributions to elastic large-angle Bhabha scattering cross-section
arXiv:hep-ph/9806215 · doi:10.1142/S021773239800245X
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.
14 pp, LaTeX 2.09, typos fixed, submitted to Int.J.Mod.Phys. A
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