TMBSecondaryVertex.hpp

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#ifndef TMB_TREE_TMBSECONDARYVERTEX_HPP__
#define TMB_TREE_TMBSECONDARYVERTEX_HPP__

//                                                                      //
// TMBTree Secondary vertex class                                         //
//                                                                      //

#include "tmb_tree/TMBPrimaryVertex.hpp"

class TMBSecondaryVertex : public TMBVertex {

private:

  // Attributes.

  TRef _primary_vertex;

  // PV-related transient attributes.

  mutable std::vector<double> _pv_pos;  
  mutable std::vector<double> _pv_err;  
  mutable double _decay_len_xy;         
  mutable double _decay_len_z;          
  mutable double _decay_len_xyz;        
  mutable double _decay_sig_xy;         
  mutable double _decay_sig_z;          
  mutable double _decay_sig_xyz;        
  mutable double _colinearity;          

public:
  TMBSecondaryVertex();
  TMBSecondaryVertex(Float_t vertexx, Float_t vertexy, Float_t vertexz,
                     Float_t covxx, Float_t covyy, Float_t covzz, 
                     Float_t covxy, Float_t covxz, Float_t covyz,
                     Float_t chisq, const TRefArray* tracks,
                     const TMBLorentzVector& smoothed_momentum,
                     const TRef& primary_vertex);
  ~TMBSecondaryVertex() {}

  const TMBPrimaryVertex& GetPrimaryVertex() const {
      return *(const TMBPrimaryVertex*)_primary_vertex.GetObject();
  }

  Float_t GetDecayLenXY() const {fill_pv_attributes(); return _decay_len_xy;}
  Float_t GetDecayLenZ() const {fill_pv_attributes(); return _decay_len_z;}
  Float_t GetDecayLenXYZ() const {fill_pv_attributes(); return _decay_len_xyz;}
  Float_t GetDecaySigXY() const {fill_pv_attributes(); return _decay_sig_xy;}
  Float_t GetDecaySigZ() const {fill_pv_attributes(); return _decay_sig_z;}
  Float_t GetDecaySigXYZ() const {fill_pv_attributes(); return _decay_sig_xyz;}
  Float_t GetColinearity() const {fill_pv_attributes(); return _colinearity;}

 private:

  void fill_pv_attributes() const;

  ClassDef(TMBSecondaryVertex, 1);
};

#endif // TMB_TREE_TMBSECONDARYVERTEX_HPP__

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