include/EvtGenModels/EvtBToKpipiCP.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 *                                                                      *
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 EVTBTOKPIPICP_HH
0022 #define EVTBTOKPIPICP_HH
0023
0024 #include "EvtGenBase/EvtDecayAmp.hh"
0025 #include "EvtGenBase/EvtVector4R.hh"
0026
0027 #include "EvtGenModels/EvtBTo3hCP.hh"
0028
0029 class EvtParticle;
0030
0031 // Description: Routine to decay B->K pi pi
0032 //              and has CP violation.
0033 //       --- This is the routine to be called by the Main generator
0034 //          to get the decay of B0    -->-- K+ pi- pi0
0035 //          The decay proceeeds through three channels:
0036 //          a) B0 -->-- K*+ pi-  ; K*+    -->-- K+ pi0
0037 //          b)          K*0 pi0  ; K*0bar -->-- K+ pi-
0038 //          c)          K-  rho+ ; rho+   -->-- pi+ pi0
0039 //         It provides at the same time the CP conjugate decay
0040 //                              B0bar -->-- K- pi+ pi0
0041
0042 class EvtBToKpipiCP : public EvtDecayAmp {
0043   public:
0044     EvtBToKpipiCP() {}
0045
0046     std::string getName() override;
0047     EvtBToKpipiCP* clone() override;
0048
0049     void init() override;
0050     void decay( EvtParticle* p ) override;
0051
0052   private:
0053     EvtBTo3hCP generator;
0054 };
0055
0056 #endif