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00001 #ifndef RecoBTag_SoftLepton_SoftLepton_h
00002 #define RecoBTag_SoftLepton_SoftLepton_h
00003 
00004 // -*- C++ -*-
00005 //
00006 // Package:    SoftLepton
00007 // Class:      SoftLepton
00008 // 
00016 //
00017 // Original Author:  fwyzard
00018 //         Created:  Wed Oct 18 18:02:07 CEST 2006
00019 // $Id: SoftLepton.h,v 1.14 2010/08/19 23:14:52 fwyzard Exp $
00020 //
00021 
00022 // system include files
00023 #include <memory>
00024 #include <map>
00025 
00026 // user include files
00027 #include "FWCore/Framework/interface/Frameworkfwd.h"
00028 #include "FWCore/Framework/interface/EDProducer.h"
00029 #include "FWCore/Utilities/interface/InputTag.h"
00030 #include "FWCore/ParameterSet/interface/ParameterSet.h"
00031 #include "DataFormats/Common/interface/RefToBase.h"
00032 #include "DataFormats/Math/interface/Vector3D.h"
00033 #include "DataFormats/GeometryVector/interface/GlobalVector.h"
00034 #include "DataFormats/JetReco/interface/Jet.h"
00035 #include "DataFormats/VertexReco/interface/Vertex.h"
00036 #include "DataFormats/TrackReco/interface/TrackFwd.h"
00037 #include "DataFormats/TrackReco/interface/Track.h"
00038 #include "DataFormats/MuonReco/interface/Muon.h"
00039 #include "DataFormats/MuonReco/interface/MuonSelectors.h"
00040 #include "DataFormats/BTauReco/interface/SoftLeptonTagInfo.h"
00041 
00042 class TransientTrackBuilder;
00043 
00044 class SoftLepton : public edm::EDProducer {
00045 public:
00046   explicit SoftLepton(const edm::ParameterSet& iConfig);
00047   ~SoftLepton();
00048 
00049   struct TrackCompare :
00050     public std::binary_function<edm::RefToBase<reco::Track>,
00051                                 edm::RefToBase<reco::Track>, bool> {
00052     inline bool operator () (const edm::RefToBase<reco::Track> &t1,
00053                              const edm::RefToBase<reco::Track> &t2) const
00054     { return t1.key() < t2.key();}
00055   };
00056 
00057   typedef std::map<unsigned int, float> LeptonIds;
00058   typedef std::map<edm::RefToBase<reco::Track>, LeptonIds, TrackCompare> Leptons;
00059 
00060   // generic interface, using a TrackRefVector for lepton tracks
00061   reco::SoftLeptonTagInfo tag (
00062       const edm::RefToBase<reco::Jet> & jet,
00063       const reco::TrackRefVector      & tracks,
00064       const Leptons                   & leptons,
00065       const reco::Vertex              & primaryVertex
00066   ) const;
00067 
00068 protected:
00069   // generic interface, using a TrackRefVector for lepton tracks
00070 
00071   GlobalVector refineJetAxis (
00072       const edm::RefToBase<reco::Jet>   & jet,
00073       const reco::TrackRefVector        & tracks,
00074       const edm::RefToBase<reco::Track> & exclude = edm::RefToBase<reco::Track>()
00075   ) const;
00076 
00077   static double relativeEta(
00078       const math::XYZVector& vector,
00079       const math::XYZVector& axis
00080   );
00081 
00082   static double boostedPPar(
00083       const math::XYZVector& vector,
00084       const math::XYZVector& axis
00085   );
00086   
00087 private:
00088   virtual void produce(edm::Event & event, const edm::EventSetup & setup);
00089 
00090   // configuration   
00091   const edm::InputTag m_jets;
00092   const edm::InputTag m_primaryVertex;
00093   const edm::InputTag m_leptons;
00094   const edm::InputTag m_leptonCands;
00095   const edm::InputTag m_leptonId;
00096 
00097   // service used to make transient tracks from tracks
00098   const TransientTrackBuilder * m_transientTrackBuilder;
00099 
00100   // algorithm configuration
00101   unsigned int  m_refineJetAxis;
00102   double        m_deltaRCut;
00103   double        m_chi2Cut;
00104   
00105   // specific for reco::Muons
00106   muon::SelectionType m_muonSelection;
00107 
00108   // nominal beam spot position
00109   static const reco::Vertex s_nominalBeamSpot;
00110 };
00111 
00112 #endif // RecoBTag_SoftLepton_SoftLepton_h
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