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00001 #ifndef _SIGNEDDECAYLENGHT3D_H_
00002 #define _SIGNEDDECAYLENGHT3D_H_
00003 #include "TrackingTools/TrajectoryState/interface/TrajectoryStateOnSurface.h"
00004 #include "DataFormats/GeometryCommonDetAlgo/interface/Measurement1D.h"
00005 #include "TrackingTools/TransientTrack/interface/TransientTrack.h"
00006 #include "DataFormats/VertexReco/interface/Vertex.h"
00007 #include "DataFormats/GeometryVector/interface/GlobalVector.h"
00008 #include <utility>
00009 
00010 
00017 class SignedDecayLength3D  {
00018 
00019 public:
00020 
00021   // construct
00022 
00023   SignedDecayLength3D(){};
00024 
00025   static std::pair<bool,Measurement1D> apply(const reco::TransientTrack & track, 
00026                             const GlobalVector & direction, const reco::Vertex & vertex) ;
00027 
00028 
00029   int id() const {return 3;}
00030  
00031 private:
00032 
00033   static TrajectoryStateOnSurface closestApproachToJet(const FreeTrajectoryState &, const reco::Vertex &, const GlobalVector &,  const MagneticField *) ;
00034 
00035  
00036 };
00037 
00038 
00039 
00040 #endif
00041 
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/data/refman/pasoursint/CMSSW_5_3_10_patch1/src/RecoBTag/BTagTools/interface/SignedDecayLength3D.h