Four-Fermion Production in Electron-Positron Collisions

Abstract

This report summarises the results of the four-fermion working group of the LEP2-MC workshop, held at CERN from 1999 to 2000. Recent developments in the calculation of four-fermion processes in electron-positron collisions at LEP-2 centre-of-mass energies are presented, concentrating on predictions for four main reactions: W-pair production, visible photons in four-fermion events, single-W production and Z-pair production. Based on a comparison of results derived within different approaches, theoretical uncertainties on these predictions are established.

150 pages, 73 figures, 45 tables

References in corpus (7)

• QCD Corrections to the $e^{+}{e}^{-}$ Cross Section and the $Z$ Boson Decay Rate
• Precision Calculation Project Report
• WW Cross-sections and Distributions
• Electroweak Working Group Report
• Global Positioning of Spin GPS Scheme for Half-Spin Massive Spinors
• Precision Calculation of Bhabha Scattering at LEP
• The single W production case

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• Search for a low mass CP-odd Higgs boson in e+e- collisions with the OPAL detector at LEP2
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• Searches for invisibly decaying Higgs bosons with the DELPHI detector at LEP
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• Measurement of Trilinear Gauge Boson Couplings WWV, (V = Z,gamma) in e+e- Collisions at 189 GeV
• The Monte Carlo Program KKMC for the Lepton or Quark Pair Production at LEP/SLC Energies -- updates of electroweak calculations
• Measurement of the W-pair Production Cross-section and W Branching Ratios in e+e- Collisions at sqrt(s) = 161-209 GeV
• Four-fermion simulation at LEP2 in DELPHI
• WPHACT 2.0: A fully massive Monte Carlo generator for four fermion physics at e^+ e^- colliders
• Virtual Hadronic and Heavy-Fermion O(alpha^2) Corrections to Bhabha Scattering
• Measurements of CP-conserving Trilinear Gauge Boson Couplings WWV (V = gamma,Z) in e+e- Collisions at LEP2
• ZZ production in e+e- interactions at sqrt(s) = 183 - 209 GeV
• Measurement of triple gauge boson couplings from WW production at LEP energies up to 189 GeV
• Measurement of Hadron and Lepton-Pair Production in e+e- Collisions at sqrt{s}=192-208GeV at LEP
• Experimental Precision Tests for the Electroweak Standard Model
• On Theoretical Uncertainties of the W Angular Distribution in W-Pair Production at LEP2 Energies
• QED Interference in Charge Asymmetry Near the Z Resonance at Future Electron-Positron Colliders
• Near-threshold W-pair production in the model of unstable particles with smeared mass
• Modified perturbation theory approach for tt-bar production and decay
• Physics of W bosons at LEP
• ee4fgamma, A program for e+e- -> 4f, 4fgamma with nonzero fermion masses
• Factorization in the model of unstable particles with continuous masses
• Search for Invisibly Decaying Higgs Bosons with Large Decay Width Using the OPAL Detector at LEP
• Electroweak corrections uncertainty on the W mass measurement at LEP
• Present and Future Electroweak Precision Measurements and the Indirect Determination of the Mass of the Higgs Boson
• Higgs Physics at the LHC: Some Theory Aspects
• Precision measurement of the Z boson to electron neutrino coupling at the future circular colliders
• Predictions for Fermion Pair Production at e+e- Colliders
• The Influence of the Experimental Methodology on the QED Theoretical Uncertainties on the Measurement of the W-Boson Mass at LEP
• Standard Model Electroweak Measurements at LEP
• Modified perturbation theory for angular distribution in W-pair production
• Coherent Exclusive Exponentiation of 2f Processes in e+e- Annihilation
• Precision W-pair physics with the YFSWW3 and KoralW Monte Carlos