Improved effective vector boson approximation revisited

Abstract

We reexamine the improved effective vector boson approximation which is based on two-vector-boson luminosities ${\mathbf{L}}_{\mathrm{pol}}$ for the computation of weak gauge-boson hard scattering subprocesses $V_1{V}_2\to \mathcal{W}$ in high-energy hadron-hadron or $e^{-}{e}^{+}$ collisions. We calculate these luminosities for the nine combinations of the transverse and longitudinal polarizations of $V_1$ and $V_2$ in the unitary and axial gauge. For these two gauge choices the quality of this approach is investigated for the reactions $e^{-}{e}^{+}\to W^{-}{W}^{+}{\nu }_e{\bar{\nu }}_e$ and $e^{-}{e}^{+}\to t\bar{t}{\nu }_e{\bar{\nu }}_e$ using appropriate phase-space cuts.

Two-vector-boson luminosities now computed also in axial gauge. One figure and references added. Version to appear in Physical Review D

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Cited by in corpus (5)

• The Effective Vector Boson Approximation in High-Energy Muon Collisions
• Like-Sign W-Boson Scattering at the LHC -- Approximations and Full Next-to-Leading-Order Predictions
• Single top production at linear $e^{-}{e}^{+}$ colliders
• Longitudinal W boson scattering in a light scalar top scenario
• Weak bosons as partons below 10 TeV partonic center-of-momentum