The calculation of the full electroweak O(alpha) corrections to the charged-current four-fermion production processes e+e- --> nu_tau tau+ mu- anti-nu_mu, u anti-d mu- anti-nu_mu, and u anti-d s anti-c is briefly reviewed. The calculation is performed using the complex-mass scheme for the gauge-boson resonances. The evaluation of the occurring one-loop tensor integrals, which include 5- and 6-point functions, requires new techniques. The effects of the complete O(alpha) corrections to the total cross section and to the production-angle distribution are discussed and compared to predictions based on the double-pole approximation, revealing that the latter approximation is not sufficient to fully exploit the potential of a future linear collider in an analysis of W-boson pairs at high energies.
@article{arxiv.hep-ph/0601122,
title = {Electroweak Corrections to e+e- --> 4 fermions},
author = {A. Denner and S. Dittmaier and M. Roth and L. H. Wieders},
journal= {arXiv preprint arXiv:hep-ph/0601122},
year = {2008}
}
Comments
5 pages, LaTeX, 6 postscript figures, to appear in the proceedings of the "7th International Symposium on Radiative Corrections (RADCOR05)", Shonan Village, 2005