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File indexing completed on 2026-08-06 09:20:05

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 EvtBcVNpi_HH
0022 #define EvtBcVNpi_HH
0023 
0024 #include "EvtGenBase/EvtDecayAmp.hh"
0025 #include "EvtGenBase/EvtPDL.hh"
0026 #include "EvtGenBase/EvtParticle.hh"
0027 #include "EvtGenBase/EvtScalarParticle.hh"
0028 
0029 #include "EvtGenModels/EvtBCVFF.hh"
0030 #include "EvtGenModels/EvtWnPi.hh"
0031 
0032 #include <iostream>
0033 #include <memory>
0034 
0035 using std::endl;
0036 using std::string;
0037 
0038 class EvtBcVNpi : public EvtDecayAmp {
0039   public:
0040     std::string getName() override;
0041     EvtDecayBase* clone() override;
0042     void initProbMax() override;
0043     void init() override;
0044     void decay( EvtParticle* p ) override;
0045 
0046   protected:
0047     int nCall;
0048     int whichfit, idVector;
0049     std::unique_ptr<EvtBCVFF> ffmodel;
0050     std::unique_ptr<EvtWnPi> wcurr;
0051 
0052     EvtComplex Fpi( EvtVector4R q1, EvtVector4R q2 );
0053     EvtComplex BWa( EvtVector4R q );
0054     EvtComplex BWf( EvtVector4R q );
0055     EvtComplex BWr( EvtVector4R q );
0056     EvtVector4C JB( EvtVector4R q1, EvtVector4R q2, EvtVector4R q3,
0057                     EvtVector4R q4, EvtVector4R q5 );
0058 };
0059 #endif