/data/refman/pasoursint/CMSSW_5_3_0/src/DataFormats/VertexReco/interface/NuclearInteraction.h

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#ifndef DATAFORMAT_NUCLEARINTERACTION_
#define DATAFORMAT_NUCLEARINTERACTION_

#include "DataFormats/TrackReco/interface/TrackFwd.h"
#include "DataFormats/TrackReco/interface/Track.h"
#include "DataFormats/TrajectorySeed/interface/TrajectorySeedCollection.h"
#include "DataFormats/VertexReco/interface/Vertex.h"

namespace reco {
  
   class NuclearInteraction {
     
     public :

       typedef edm::RefVector<TrajectorySeedCollection>  TrajectorySeedRefVector;
       typedef edm::Ref<TrajectorySeedCollection>        TrajectorySeedRef;
       typedef reco::Vertex::trackRef_iterator           trackRef_iterator;
       typedef TrajectorySeedRefVector::iterator         seedRef_iterator;

       NuclearInteraction() {}

       NuclearInteraction( const TrajectorySeedRefVector& tseeds, const reco::Vertex& vtx, double lkh) { 
                         seeds_ = tseeds;
                         vertex_ = vtx;
                         likelihood_ = lkh;
       }
 
       const edm::RefToBase<reco::Track>& primaryTrack() const { return *(vertex_.tracks_begin()); }

       int secondaryTracksSize() const { return vertex_.tracksSize()-1; }

       trackRef_iterator secondaryTracks_begin() const { return vertex_.tracks_begin()+1; }

       trackRef_iterator secondaryTracks_end() const { return vertex_.tracks_end(); }

       int seedsSize() const { return seeds_.size(); }

       const TrajectorySeedRefVector& seeds() { return seeds_; }

       seedRef_iterator seeds_begin() const { return seeds_.begin(); }

       seedRef_iterator seeds_end() const { return seeds_.end(); }

       const reco::Vertex& vertex() const { return vertex_; }

       double likelihood() const { return likelihood_; }

     private :

        //reco::Track                 refittedPrimaryTrack_; // to be included in a futur version

        TrajectorySeedRefVector     seeds_;

        reco::Vertex                vertex_;
   
        double                      likelihood_;
     };
}
#endif