High-Energy Cross Section for e^+e^- to W^+ W^- to 4 fermions + gamma
Y. Kurihara (KEK), M. Kuroda (Meiji-Gakuin University) D. Schildknecht, (Bielefeld University)
TL;DR
This paper extends a high-energy Born-form representation of one-loop helicity amplitudes for e^+e^- to W^+W^- by including W decay and photon radiation, providing detailed cross section results above 500 GeV.
Contribution
It introduces a comprehensive calculation of e^+e^- to W^+W^- to 4 fermions + gamma incorporating decay and radiation effects at high energies.
Findings
Differential cross sections computed for sqrt(s) > 500 GeV
Total cross sections presented for high-energy regime
Enhanced accuracy in modeling W pair production processes
Abstract
A recently suggested high-energy Born-form representation of the one-loop helicity amplitudes for e^+e^- to W^+W^- is supplemented by including W^+- decay and hard-photon radiation. Results for the differential and the total cross section for e^+e^- to W^+W^- to 4 fermions + gamma are given for the high-energy region of sqrt(s) > 500 GeV.
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