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File indexing completed on 2026-08-06 09:20:07

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 EVTSVPCP_HH
0022 #define EVTSVPCP_HH
0023 
0024 #include "EvtGenBase/EvtDecayAmp.hh"
0025 
0026 class EvtParticle;
0027 
0028 // Description: Routine to decay scalar -> vectors+photon
0029 //              including CP violation effects
0030 //
0031 //Class to handle decays of the form SCALAR ->VECTOR PHOTON
0032 //where the helicity amplitudes must be specified.  The
0033 //first and third arguements are the magnetudes of the H+
0034 //and H- helicity amplitudes respectively.  The second and
0035 //fourth arguements are the phases.
0036 //Calls EvtSVPHel.
0037 
0038 class EvtSVPCP : public EvtDecayAmp {
0039   public:
0040     std::string getName() override;
0041     EvtDecayBase* clone() override;
0042 
0043     void init() override;
0044     void initProbMax() override;
0045     void decay( EvtParticle* p ) override;
0046     static void SVPHel( EvtParticle* parent, EvtAmp& amp, EvtId n_v1,
0047                         EvtId n_v2, const EvtComplex& hp, const EvtComplex& hm );
0048 
0049     std::string getParamName( int i ) override;
0050     std::string getParamDefault( int i ) override;
0051 };
0052 
0053 #endif