include/EvtGenBase/EvtCGCoefSingle.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 *                                                                      *
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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    *
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0019 ***********************************************************************/
0020
0021 #ifndef EVTCGCOEFSINGLE_HH
0022 #define EVTCGCOEFSINGLE_HH
0023
0024 #include <vector>
0025
0026 class EvtCGCoefSingle final {
0027   public:
0028     EvtCGCoefSingle( int j1, int j2 ) { init( j1, j2 ); }
0029
0030     double coef( int J, int M, int j1, int j2, int m1, int m2 );
0031
0032   private:
0033     void init( int j1, int j2 );
0034     double& cg( int J, int M, int m1, int m2 );
0035
0036     int _j1;
0037     int _j2;
0038
0039     int _Jmax;
0040     int _Jmin;
0041
0042     std::vector<std::vector<std::vector<double>>> _table;
0043 };
0044
0045 #endif