/data/refman/pasoursint/CMSSW_4_1_8_patch13/src/RecoVertex/KinematicFitPrimitives/interface/KinematicParameters.h

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#ifndef KinematicParameters_H
#define KinematicParameters_H

#include "RecoVertex/KinematicFitPrimitives/interface/Matrices.h"
#include "DataFormats/GeometryVector/interface/GlobalPoint.h"
#include "DataFormats/GeometryVector/interface/GlobalVector.h"

class KinematicParameters{

public:

  typedef ROOT::Math::SVector<double,7> AlgebraicVector7;

  KinematicParameters() : vl(false) {}

  KinematicParameters(const AlgebraicVector7& pr): par(pr),vl(true)
  {}

  AlgebraicVector7 const & vector() const {return par;}

  double operator()(const int i) const  {return par(i);}

  GlobalVector momentum() const;
  
  GlobalPoint position() const;
  
  double mass() const {return par(6);}

  double energy() const;

  bool isValid() const
  {return vl;}

private:
   AlgebraicVector7 par;
   bool vl;
};


#endif