Second-order contributions to elastic large-angle Bhabha scatteringстатья
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Дата последнего поиска статьи во внешних источниках: 10 августа 2018 г.
Аннотация:The cross-section of (quasi-)elastic large-angle electron-positron scattering at high energies is calculated. Radiative corrections of the orders script O sign(α2L2) and script O sign(α2L), 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.