WPHACT 2.0: A Fully massive Monte Carlo generator for four fermion physics at e+ e- colliders

Mar, 2002
39 pages
Published in:
  • Comput.Phys.Commun. 150 (2003) 166-196
e-Print:
Report number:
  • CERN-EP-2002-037,
  • DFTT-30-01,
  • PSI-PR-02-03

Citations per year

200220062010201420180510152025
Abstract: (arXiv)
WPHACT 2.0 is the new fully massive version of a MC program and unweighted event generator which computes all Standard Model processes with four fermions in the final state at e^+ e^- colliders. The program can now generate unweighted events for any subset of all four fermion final states in a single run, by making use of dedicated pre-samples which can cover the entire phase space. Improvements with respect to WPHACT 1.0 include the Imaginary Fermion Loop gauge restoring scheme, new phase space mappings, a new input system, the possibility to compute subsets of Feynman diagrams and options for including ISR via QEDPS, running alpha_{QED}, CKM mixing, resonances in q bar(q) channels.
Note:
  • 38 pages, 5 figure: Version to be published in Comp.Phys.Comm
  • electron positron: annihilation
  • fermion: electroproduction
  • final state: (4fermion)
  • kinematics: phase space
  • radiative correction
  • invariance: gauge
  • Feynman graph: higher-order
  • quantum electrodynamics: coupling constant
  • quark: hadronization
  • supersymmetry