include/EvtGenExternal/EvtPythia.hh

0001
0002 /***********************************************************************
0003 * Copyright 1998-2020 CERN for the benefit of the EvtGen authors       *
0004 *                                                                      *
0005 * This file is part of EvtGen.                                         *
0006 *                                                                      *
0007 * EvtGen is free software: you can redistribute it and/or modify       *
0008 * it under the terms of the GNU General Public License as published by *
0009 * the Free Software Foundation, either version 3 of the License, or    *
0010 * (at your option) any later version.                                  *
0011 *                                                                      *
0012 * EvtGen is distributed in the hope that it will be useful,            *
0013 * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
0014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
0015 * GNU General Public License for more details.                         *
0016 *                                                                      *
0017 * You should have received a copy of the GNU General Public License    *
0018 * along with EvtGen.  If not, see <https://www.gnu.org/licenses/>.     *
0019 ***********************************************************************/
0020
0021 #ifndef EVTPYTHIA_HH
0022 #define EVTPYTHIA_HH
0023
0024 #include "EvtGenBase/EvtDecayIncoherent.hh"
0025
0026 #include <string>
0027 #include <vector>
0028
0029 class EvtParticle;
0030 class EvtAbsExternalGen;
0031 class EvtDecayBase;
0032
0033 // Description:
0034 // Class to handle generic phase space decays not done
0035 // in other decay models.
0036
0037 class EvtPythia : public EvtDecayIncoherent {
0038   public:
0039     EvtPythia();
0040     ~EvtPythia();
0041
0042     std::string getName() override;
0043
0044     EvtDecayBase* clone() override;
0045
0046     void initProbMax() override;
0047
0048     void init() override;
0049
0050     void decay( EvtParticle* p ) override;
0051
0052     std::string commandName() override;
0053     void command( std::string ) override;
0054
0055   protected:
0056     EvtAbsExternalGen* _pythiaEngine;
0057
0058   private:
0059     void fixPolarisations( EvtParticle* p );
0060     std::vector<std::string> _commandList;
0061 };
0062
0063 #endif