arXiv:hep-ph/0309230·v2·High Energy Physics — Phenomenology
Electroweak 2 -> 2 amplitudes for electron-positron annihilation at TeV energies
A. Barroso (Lisbon U., CFTC)🇵🇹 · B.I. Ermolaev (Lisbon U., CFTC & Ioffe Phys. Tech. Inst.)🇵🇹 · M. Greco (Rome U., III & INFN, Rome)🇮🇹 · S.M. Oliveira (Lisbon U., CFTC)🇵🇹 · S.I. Troyan (St. Petersburg, INP)🇷🇺
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.
Comments: Revtex4, 17 pages, 7 figures. Some minor changes made, more refs added