EvtGen.hh

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/***********************************************************************
* Copyright 1998-2020 CERN for the benefit of the EvtGen authors       *
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* This file is part of EvtGen.                                         *
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* EvtGen is free software: you can redistribute it and/or modify       *
* it under the terms of the GNU General Public License as published by *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
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#ifndef EVTGEN_HH
#define EVTGEN_HH

#include "EvtGenBase/EvtPDL.hh"

#include <list>
#include <iostream>

class EvtParticle;
class EvtRandomEngine;
class EvtVector4R;
class EvtStdHep;
class EvtSpinDensity;
class EvtAbsRadCorr;
class EvtDecayBase;
class EvtHepMCEvent;

class EvtGen {
  public:
    EvtGen( const std::string& decayName, const std::string& pdtTableName,
            EvtRandomEngine* randomEngine = 0, EvtAbsRadCorr* isrEngine = 0,
            const std::list<EvtDecayBase*>* extraModels = 0, int mixingType = 1,
            bool useXml = false );

    EvtGen( const std::string& decayName, std::istream& pdtTableData,
            EvtRandomEngine* randomEngine = 0, EvtAbsRadCorr* isrEngine = 0,
            const std::list<EvtDecayBase*>* extraModels = 0, int mixingType = 1,
            bool useXml = false );

    ~EvtGen();

    void readUDecay( const std::string& udecay_name, bool useXml = false );

    EvtHepMCEvent* generateDecay( int PDGid, EvtVector4R refFrameP4,
                                  EvtVector4R translation,
                                  EvtSpinDensity* spinDensity = 0 );

    void generateDecay( EvtParticle* p );

  private:

    void initialize( const std::string& decayName, std::istream& pdtTable,
                     EvtRandomEngine* randomEngine = 0,
                     EvtAbsRadCorr* isrEngine = 0,
                     const std::list<EvtDecayBase*>* extraModels = 0,
                     int mixingType = 1, bool useXml = false );

    EvtPDL _pdl;
    int _mixingType;
};

#endif