O(alpha) corrections to e+e- --> WW --> 4fermions(+gamma): first numerical results from RACOONWW

Abstract

First numerical results of the Monte Carlo generator RACOONWW for e+e- --> WW --> 4fermions(+gamma) in the electroweak Standard Model are presented. This event generator is the first one that includes O(alpha) electroweak radiative corrections in the double-pole approximation completely. We briefly describe the strategy of the calculation and give numerical results for total cross sections, including CC03, and various distributions.

Figures (5)

• Figure 1: Production-angle distribution for ${\rm e^+}$ e^+${\rm e^-}$ e^-$\to\nu_\mu\mu^+{\rm d}$ d$\bar{{\rm u}$ u$}$ and $\sqrt{s}=200\,{\rm GeV}$
• Figure 2: Decay-angle distribution for ${\rm e^+}$ e^+${\rm e^-}$ e^-$\to\nu_\mu\mu^+{\rm d}$ d$\bar{{\rm u}$ u$}$ and $\sqrt{s}=200\,{\rm GeV}$
• Figure 3: Muon-energy distribution for ${\rm e^+}$ e^+${\rm e^-}$ e^-$\to\nu_\mu\mu^+{\rm d}$ d$\bar{{\rm u}$ u$}$ and $\sqrt{s}=200\,{\rm GeV}$
• Figure 4: Invariant-mass distribution of the lepton pair for ${\rm e^+}$ e^+${\rm e^-}$ e^-$\to\nu_\mu\mu^+{\rm d}$ d$\bar{{\rm u}$ u$}$ and $\sqrt{s}=200\,{\rm GeV}$
• Figure 5: Invariant-mass distribution of the quark pair for ${\rm e^+}$ e^+${\rm e^-}$ e^-$\to\nu_\mu\mu^+{\rm d}$ d$\bar{{\rm u}$ u$}$ and $\sqrt{s}=200\,{\rm GeV}$