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 m_F[4];
        double m_G[4];
        double m_FT[4];
        double m_GT[4];
    };
 
    virtual void init() = 0;
 
    virtual void getFF( const EvtParticle& parent, const EvtParticle& lambda,
                        EvtRareLbToLllFFBase::FormFactors& FF ) const = 0;
 
    bool isNatural( const EvtParticle& lambda ) const;
 
    EvtRareLbToLllFFBase();
    virtual ~EvtRareLbToLllFFBase(){};
 
  protected:
    double calculateVdotV( const EvtParticle& parent,
                           const EvtParticle& lambda ) const;
    double calculateVdotV( const EvtParticle&, const EvtParticle&,
                           double qsq ) const;
 
    EvtIdSet m_natural;
};
 
#endif