EvtRareLbToLllFFBase.hh

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#ifndef EVTRARELBTOLLLFFBASE_HH
#define EVTRARELBTOLLLFFBASE_HH 1

// Include files

#include "EvtGenBase/EvtIdSet.hh"
#include "EvtGenBase/EvtParticle.hh"

#include <map>
#include <string>

class EvtRareLbToLllFFBase {
  public:
    class FormFactors {
      public:
        FormFactors();

        virtual ~FormFactors(){};

        void areZero();

        double F_[4];
        double G_[4];
        double FT_[4];
        double GT_[4];
    };

    virtual void init() = 0;

    virtual void getFF( EvtParticle* parent, EvtParticle* lambda,
                        EvtRareLbToLllFFBase::FormFactors& FF ) = 0;

    bool isNatural( EvtParticle* lambda );

    EvtRareLbToLllFFBase();
    virtual ~EvtRareLbToLllFFBase(){};

  protected:
    double calculateVdotV( EvtParticle* parent, EvtParticle* lambda ) const;
    double calculateVdotV( EvtParticle*, EvtParticle*, double qsq ) const;

    EvtIdSet natural_;
};

#endif