####################################################################### # WHIZARD # # Copyright (C) 1999-2012 by # Wolfgang Kilian # Thorsten Ohl # Juergen Reuter # Christian Speckner # with contributions by Fabian Bach, Felix Braam, Sebastian Schmidt, # Daniel Wiesler # # WHIZARD is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # # WHIZARD is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. # ######################################################################## WHIZARD is a program system designed for the efficient calculation of multi-particle scattering cross sections and simulated event samples. The events can be written to file in HepMC, LHEF or ASCII format. Tree-level matrix elements are generated automatically for arbitrary partonic processes by calling the O'Mega matrix element generator. Matrix elements obtained by alternative methods (e.g., including loop corrections) may be interfaced as well. The program is able to calculate numerically stable signal and background cross sections and generate unweighted event samples with reasonable efficiency for processes with up to six or eight final-state particles. Polarization is treated exactly for both the initial and final states. Final-state quark or lepton flavors can be summed over automatically where needed. For Linear Collider physics, beamstrahlung (CIRCE) and ISR spectra are included for electrons and photons. Currently, WHIZARD supports the Standard Model, optionally with anomalous couplings (for gauge bosons, the Higgs boson, and the top quark), the MSSM, the NMSSM, several types of Little Higgs models, Universal Extra Dimensions, the 3-site Higgsless moose model, and a generic Z' model. Model extensions or completely different models can be added. Almost arbitrary models might be added via the interface to the package FeynRules. The WHIZARD manual as well as the documented source code can be found in the subdirectory 'share/doc'. The manual describes the installation and usage of WHIZARD.