Abstract
The cross-section of (quasi-)elastic large-angle electron–positron scattering at high energies is calculated. Radiative corrections of the orders [Formula: see text] and [Formula: see text], except pure two-loop box contributions, are explicitly calculated. In the second order we considered the following sources of corrections: (a) virtual photonic corrections coming from squares of one-loop level amplitudes and their relevant interferences (vertex-type and box-type Feynman diagrams); (b) double soft photon emission and one-loop corrections to single soft photon emission. The results are presented analytically.
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