Sudakov Logarithms in Four-Fermion Electroweak Processes at High Energy
arXiv:hep-ph/0211193 · doi:10.1016/S0920-5632(03)80137-8
Abstract
We discuss recent results for the asymptotic behavior of fermion scattering amplitudes in the Sudakov limit. The results include next-to-next-to-leading logarithmic electroweak corrections and are used for the analysis of fermion-antifermion pair production in e+e- annihilation at high energy. The importance of the subleading logarithmic contributions is emphasized and the fermionic contributions to the Abelian form factor at two loops are discussed.
Talk at RADCOR 2002, Kloster Banz, Germany, 8-13 Sep 2002; 5 pages, 1 figure