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Electroweak Corrections to e+e- --> 4 fermions

A. Denner·S. Dittmaier·M. Roth·L. H. Wieders
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Abstract

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.

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A. Denner, S. Dittmaier, M. Roth, L. H. Wieders. 2006-01-16. Electroweak Corrections to e+e- --> 4 fermions. https://doi.org/10.1016/j.nuclphysbps.2006.03.009

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