EvtSLDiBaryonAmp.hh

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#ifndef EVTSLDIBARYONAMP_HH
#define EVTSLDIBARYONAMP_HH
 
#include "EvtGenBase/EvtAmp.hh"
#include "EvtGenBase/EvtDiracSpinor.hh"
#include "EvtGenBase/EvtId.hh"
#include "EvtGenBase/EvtVector4C.hh"
#include "EvtGenBase/EvtVector4R.hh"
 
#include "EvtGenModels/EvtBToDiBaryonlnupQCDFF.hh"
 
#include <vector>
 
class EvtParticle;
 
// Description: Routine to implement semileptonic decays to dibaryonic final
// state. Details of amplitude calculation to be found in arXiv:1107.0801.
 
class EvtSLDiBaryonAmp {
  public:
    EvtSLDiBaryonAmp( const EvtBToDiBaryonlnupQCDFF& );
 
    void CalcAmp( EvtParticle* parent, EvtAmp& amp ) const;
 
  protected:
    int checkDibaryonParity( const EvtId& id1, const EvtId& id2, const int J1,
                             const int J2 ) const;
 
    int getBaryonParity( const EvtId& id ) const;
 
    std::vector<EvtVector4C> getHadronicCurrents(
        const EvtDiracSpinor& u, const EvtDiracSpinor& v, const EvtVector4R& p,
        const EvtVector4R& gMtmTerms, const EvtVector4R& fMtmTerms ) const;
 
  private:
    EvtBToDiBaryonlnupQCDFF m_ffModel;
};
 
#endif