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ConstrainedTreeBuilder.h

Go to the documentation of this file.

#ifndef ConstrainedTreeBuilder_H
#define ConstrainedTreeBuilder_H

#include "RecoVertex/KinematicFitPrimitives/interface/RefCountedKinematicTree.h"
#include "RecoVertex/KinematicFitPrimitives/interface/VirtualKinematicParticleFactory.h"
#include "RecoVertex/KinematicFitPrimitives/interface/KinematicVertexFactory.h"

class ConstrainedTreeBuilder
{

public:

 ConstrainedTreeBuilder();
 
 ~ConstrainedTreeBuilder();

 RefCountedKinematicTree buildTree(vector<RefCountedKinematicParticle> prt,
                         RefCountedKinematicVertex vtx,const AlgebraicMatrix& fCov) const;

private:
//Metod reconstructing the full covariance matrix of
//resulting particle. Matrix is returned in two parts:
//first component of vector is p_p covariance;
//the second one is p_x covariance                                                    
 AlgebraicMatrix momentumPart(vector<RefCountedKinematicParticle> rPart, 
                                       const AlgebraicVector& newPar,
                                       const AlgebraicMatrix& fitCov)const;
                                       
 VirtualKinematicParticleFactory * pFactory;                                   
 KinematicVertexFactory * vFactory;
};
#endif

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