include/EvtGenModels/EvtRareLbToLll.hh

0001
0002 /***********************************************************************
0003 * Copyright 1998-2020 CERN for the benefit of the EvtGen authors       *
0004 *                                                                      *
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0020
0021 #ifndef EVTRARELBTOLLL_HH
0022 #define EVTRARELBTOLLL_HH 1
0023
0024 #include "EvtGenBase/EvtAmp.hh"
0025 #include "EvtGenBase/EvtDecayAmp.hh"
0026 #include "EvtGenBase/EvtParticle.hh"
0027
0028 #include "EvtGenModels/EvtRareLbToLllFFBase.hh"
0029 #include "EvtGenModels/EvtRareLbToLllWC.hh"
0030
0031 #include <memory>
0032
0033 // Description:
0034 //      Implements the rare Lb --> Lambda^(*) ell ell models described in
0035 //      http://arxiv.org/pdf/1108.6129.pdf
0036
0037 class EvtRareLbToLll : public EvtDecayAmp {
0038   public:
0039     std::string getName() override;
0040
0041     EvtDecayBase* clone() override;
0042
0043     void init() override;
0044
0045     void initProbMax() override;
0046
0047     void decay( EvtParticle* parent ) override;
0048
0049   protected:
0050     void calcAmp( EvtAmp& amp, EvtParticle* parent );
0051
0052     void HadronicAmp( EvtParticle* parent, EvtParticle* lambda, EvtVector4C* T,
0053                       const int i, const int j );
0054
0055     void HadronicAmpRS( EvtParticle* parent, EvtParticle* lambda,
0056                         EvtVector4C* T, const int i, const int j );
0057
0058     bool isParticle( EvtParticle* parent ) const;
0059
0060   private:
0061     double m_maxProbability;
0062
0063     std::unique_ptr<EvtRareLbToLllFFBase> ffmodel_;
0064     std::unique_ptr<EvtRareLbToLllWC> wcmodel_;
0065 };
0066 #endif    //