include/EvtGenModels/EvtSLDiBaryonAmp.hh

0001
0002 /***********************************************************************
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0020
0021 #ifndef EVTSLDIBARYONAMP_HH
0022 #define EVTSLDIBARYONAMP_HH
0023
0024 #include "EvtGenBase/EvtAmp.hh"
0025 #include "EvtGenBase/EvtDiracSpinor.hh"
0026 #include "EvtGenBase/EvtId.hh"
0027 #include "EvtGenBase/EvtVector4C.hh"
0028 #include "EvtGenBase/EvtVector4R.hh"
0029
0030 #include "EvtGenModels/EvtBToDiBaryonlnupQCDFF.hh"
0031
0032 #include <vector>
0033
0034 class EvtParticle;
0035
0036 // Description: Routine to implement semileptonic decays to dibaryonic final
0037 // state. Details of amplitude calculation to be found in arXiv:1107.0801.
0038
0039 class EvtSLDiBaryonAmp {
0040   public:
0041     EvtSLDiBaryonAmp( const EvtBToDiBaryonlnupQCDFF& );
0042
0043     void CalcAmp( EvtParticle* parent, EvtAmp& amp ) const;
0044
0045   protected:
0046     int checkDibaryonParity( const EvtId& id1, const EvtId& id2, const int J1,
0047                              const int J2 ) const;
0048
0049     int getBaryonParity( const EvtId& id ) const;
0050
0051     std::vector<EvtVector4C> getHadronicCurrents(
0052         const EvtDiracSpinor& u, const EvtDiracSpinor& v, const EvtVector4R& p,
0053         const EvtVector4R& gMtmTerms, const EvtVector4R& fMtmTerms ) const;
0054
0055   private:
0056     EvtBToDiBaryonlnupQCDFF ffModel_;
0057 };
0058
0059 #endif