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#ifndef TRootMCPhoton_h
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#define TRootMCPhoton_h
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#include <string>
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#include <iostream>
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#include "../interface/TRootParticle.h"
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using namespace std;
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class TRootMCPhoton : public TRootParticle
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{
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public:
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TRootMCPhoton() :
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TRootParticle()
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,convVertex_()
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,tracks_(0)
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, recoPhotonIndex_(-1)
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{;}
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TRootMCPhoton(const TRootMCPhoton& photon) :
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TRootParticle(photon)
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,convVertex_(photon.convVertex_)
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,tracks_(photon.tracks_)
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, recoPhotonIndex_(photon.recoPhotonIndex_)
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{;}
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TRootMCPhoton(Double_t px, Double_t py, Double_t pz, Double_t e) :
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TRootParticle(px,py,pz,e)
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,convVertex_()
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,tracks_(0)
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, recoPhotonIndex_(-1)
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{;}
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TRootMCPhoton(Double_t px, Double_t py, Double_t pz, Double_t e, Double_t vtx_x, Double_t vtx_y, Double_t vtx_z) :
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TRootParticle(px,py,pz,e,vtx_x,vtx_y,vtx_z)
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,convVertex_()
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,tracks_(0)
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, recoPhotonIndex_(-1)
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{;}
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TRootMCPhoton(Double_t px, Double_t py, Double_t pz, Double_t e, Double_t vtx_x, Double_t vtx_y, Double_t vtx_z, Int_t type, Float_t charge) :
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TRootParticle(px,py,pz,e,vtx_x,vtx_y,vtx_z,type,charge)
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,convVertex_()
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,tracks_(0)
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, recoPhotonIndex_(-1)
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{;}
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TRootMCPhoton(const TLorentzVector &momentum) :
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TRootParticle(momentum)
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,convVertex_()
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,tracks_(0)
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, recoPhotonIndex_(-1)
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{;}
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TRootMCPhoton(const TLorentzVector &momentum, const TVector3 &vertex, Int_t type, Float_t charge) :
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TRootParticle(momentum, vertex, type, charge)
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,convVertex_()
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,tracks_(0)
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, recoPhotonIndex_(-1)
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{;}
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TRootMCPhoton(const TLorentzVector &momentum, const TVector3 &vertex, const TVector3 &convVertex, Int_t type, Float_t charge) :
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TRootParticle(momentum, vertex, type, charge)
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,convVertex_()
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,tracks_(0)
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, recoPhotonIndex_(-1)
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{;}
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TRootMCPhoton(const TLorentzVector &momentum, const TVector3 &vertex, const TVector3 &convVertex, const std::vector<TLorentzVector> &tracks, Int_t type, Float_t charge) :
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TRootParticle(momentum, vertex, type, charge)
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,convVertex_(convVertex)
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,tracks_(tracks)
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, recoPhotonIndex_(-1)
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{;}
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~TRootMCPhoton() {;}
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unsigned int nTracks() const { return tracks_.size(); }
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Float_t convEoverP() const
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{
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Float_t ptot = -1.;
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if (tracks_.size()==2)
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{
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TLorentzVector pair = tracks_.at(0) + tracks_.at(1);
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ptot = ( pair.P()>0 ? this->E() / pair.P() : -1. );
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}
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return ptot;
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}
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Float_t convMass() const
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{
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Float_t mass = -1.;
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if (tracks_.size()==2)
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{
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TLorentzVector pair = tracks_.at(0) + tracks_.at(1);
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mass = pair.M();
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}
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return mass;
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}
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Float_t convDeltaCotanTheta() const
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{
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Float_t cotan = -999.;
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if (tracks_.size()==2)
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{
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if ( tan(tracks_.at(0).Theta()) != 0 && tan(tracks_.at(1).Theta()) != 0 ) cotan = 1./ tan(tracks_.at(0).Theta()) - 1./ tan(tracks_.at(1).Theta());
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}
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return cotan;
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}
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Float_t convPtOverEt() const
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{
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Float_t pe = -1.;
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if (tracks_.size()==2)
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{
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TLorentzVector pair = tracks_.at(0) + tracks_.at(1);
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pe = pair.Pt() / this->Et();
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}
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return pe;
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}
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TVector3 convVertex() const { return convVertex_;}
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Double_t conv_vx() const { return convVertex_.x(); }
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Double_t conv_vy() const { return convVertex_.y(); }
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Double_t conv_vz() const { return convVertex_.z(); }
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std::vector<TLorentzVector> tracks() const { return tracks_;}
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Int_t recoPhotonIndex() const { return recoPhotonIndex_;}
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void setConvVertex(TVector3 convVertex) { convVertex_=convVertex; }
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void setConvVertex(Double_t x, Double_t y, Double_t z) { convVertex_.SetXYZ(x, y ,z); }
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// TODO - set tracks_...
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void setRecoPhotonIndex(Int_t recoPhotonIndex) { recoPhotonIndex_=recoPhotonIndex; }
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friend std::ostream& operator<< (std::ostream& stream, const TRootMCPhoton& photon) {
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stream << "Converted TRootMCPhoton (Et,eta,phi)=("<< photon.Et() <<","<< photon.Eta() <<","<< photon.Phi() << ")"
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<< " photon vertex=("<< photon.vx() <<","<< photon.vy() <<","<< photon.vz() << ")"
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<< " conversion vertex=("<< photon.conv_vx() <<","<< photon.conv_vy() <<","<< photon.conv_vz() << ")";
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return stream;
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};
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private:
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TVector3 convVertex_; // Position of the conversion vertex
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std::vector<TLorentzVector> tracks_;
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Int_t recoPhotonIndex_; // Index of first conversion track (in tracks TCloneArray)
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//Float_t convEoverP_; // SuperCluster Energy over Conversion track(s) Momentum
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//Float_t convPtOverEt_; // Conversion tracks pair Pt over SuperCluster Et
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//Float_t convMass_; // Conversion tracks pair invariant mass
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//Float_t convCotanTheta_; // Cotan(Theta) of conversion tracks pair
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ClassDef (TRootMCPhoton,1);
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};
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#endif
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