Electroweak 2 -> 2 amplitudes for electron-positron annihilation at TeV energies
A. Barroso, B. I. Ermolaev, M. Greco, S. M. Oliveira, S. I. Troyan
Abstract
The non-radiative scattering amplitudes for electron-positron annihilation into quark and lepton pairs in the TeV energy range are calculated in the double-logarithmic approximation. The expressions for the amplitudes are obtained using infrared evolution equations with different cut-offs for virtual photons and for W and Z bosons, and compared with previous results obtained with an universal cut-off.
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