Large angle QED processes at e^+e^- colliders at energies below 3 GeV

Abstract

QED processes at electron-positron colliders are considerd. We present differential cross-sections for large-angle Bhabha scattering, annihilation into muons and photons. Radiative corrections in the first order are taken into account exactly. Leading logarithmic contributions are calculated in all orders by means of the structure-function method. An accuracy of the calculation can be estimated about 0.2%.

arXiv comment24 pages, LaTeX, 2 PS figures, numerical results for large-angle Bhabha are added

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