text: 
  /***********************************************************************
  * Copyright 1998-2020 CERN for the benefit of the EvtGen authors       *
  *                                                                      *
  * This file is part of EvtGen.                                         *
  *                                                                      *
  * EvtGen 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 3 of the License, or    *
  * (at your option) any later version.                                  *
  *                                                                      *
  * EvtGen 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 EvtGen.  If not, see <https://www.gnu.org/licenses/>.     *
  ***********************************************************************/
  
  #ifndef EVTVLL_HH
  #define EVTVLL_HH
  
  #include "EvtGenBase/EvtDecayAmp.hh"
  
  class EvtParticle;
  
  class EvtVll : public EvtDecayAmp {
    public:
      std::string getName() override;
      EvtDecayBase* clone() override;
  
      void initProbMax() override;
      void init() override;
      void decay( EvtParticle* p ) override;
  };
  
  #endif
  