WPHACT 1.0 - A program for $WW$, Higgs and 4 fermion physics at $e^{+}{e}^{-}$ colliders

Abstract

WPHACT (W W and Higgs Physics with PHACT) is a MC program and unweighted event generator which computes all Standard Model processes with four fermion in the final state at $e^{+}{e}^{-}$ colliders. It is based on an helicity amplitude method which allows precise and fast evaluations of the matrix elements both for massless and massive fermions. Fermion masses for $b$ quarks are exactly taken into account. QED initial state and Coulomb corrections are evaluated, while QCD final state corrections are included in an approximate formulation. Cuts can be easily introduced and distributions for any variable at parton level can be implemented. The contributions to the processes of neutral Standard Model or Susy Higgs can be included. Anomalous couplings effects for the triple coupling can be computed. An interface to hadronization is provided and Jetset can be directly called from the program.

35 pages + 2 ps figures

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Cited by in corpus (49)

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• Searches for Neutral Higgs Bosons in Extended Models
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• Search for Doubly Charged Higgs Bosons at LEP2
• Measurement and Interpretation of Fermion-Pair Production at LEP energies above the Z Resonance
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• Single Intermediate Vector Boson production in e+e- collisions at sqrt(s) = 183 - 209 GeV
• Study of W boson polarisations and Triple Gauge boson Couplings in the reaction e+e- -> W+W- at LEP 2
• Final results from DELPHI on the searches for SM and MSSM Neutral Higgs bosons
• Searches for invisibly decaying Higgs bosons with the DELPHI detector at LEP
• Precision Physics at LEP
• The measurement of alpha_s from event shapes with the DELPHI detector at the highest LEP energies
• Measurement of the e+e- -> W+W-gamma Cross-section and Limits on Anomalous Quartic Gauge Couplings with DELPHI
• 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
• Study of Triple-Gauge-Boson Couplings ZZZ, ZZgam and Zgamgam at LEP
• Unstable Particles and Non-Conserved Currents: a Generalization of the Fermion-Loop Scheme
• Measurements of CP-conserving Trilinear Gauge Boson Couplings WWV (V = gamma,Z) in e+e- Collisions at LEP2
• Semileptonic six fermion processes at future $e^{+}{e}^{-}$ colliders: signal and irreducible background for top and WWZ physics
• The Stau Neutralino Co-annihilation Region at an International Linear Collider
• Investigation of Colour Reconnection in WW Events with the DELPHI detector at LEP-2
• Single-W Production and Fermion-Loop Scheme: Numerical Results
• A Study of b bbar Production in e+e- Collisions at sqrt(s) = 130-207 GeV
• Non-conserved currents and gauge-restoring schemes in single W production
• Lepton flavour violating processes at the International Linear Collider
• Search for excited leptons in e+e- collisions at sqrt{s}=189-209 GeV
• Flavour Independent Searches for Hadronically Decaying Neutral Higgs Bosons
• Search for single top quark production via contact interactions at LEP2
• PHASE, a Monte Carlo event generator for six-fermion physics at the LHC
• A Determination of the Centre-of-Mass Energy at LEP2 using Radiative 2-fermion Events
• Single Intermediate Vector Boson Production in e+e- collisions at sqrt(s) = 183 and 189 GeV
• Report of the 1997 LEP2 Phenomenology Working Group on `Searches' (Oxford)
• ee4fgamma, A program for e+e- -> 4f, 4fgamma with nonzero fermion masses
• Anomalous W boson production at HERA
• Physics of W bosons at LEP
• Distributions in Four-Fermion Processes
• Electroweak corrections uncertainty on the W mass measurement at LEP
• Measurement of the Tau Lepton Polarisation at LEP2
• Zgamma* production in e+e- interactions at sqrt{s} = 183 - 209 GeV
• Correlations between Polarisation States of W Particles in the Reaction e-e+ -> W-W+ at LEP2 Energies 189-209 GeV
• Reconstruction and approximation effects on W mass distributions at LEP2
• Study of the e+e- -> Ze+e- process at LEP
• Fermion Loops, conserved currents and single-W