#ifndef ALIITSTRACKV1_H #define ALIITSTRACKV1_H // ITS Track Class //Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it // It contain all the usefull information for the track and the method to calculate, modify or extract them #include #include #include #include "../TPC/AliTPCtrack.h" class TObjArray; class AliITSRad; class AliITSTrackV1 : public TObject { public: AliITSTrackV1(); // default constructor //AliITSTrackV1(const char *opt); // Standard constructor AliITSTrackV1(Double_t fieldfactor); // Standard constructor //AliITSTrackV1(AliTPCtrack &obj); // Standard constructor AliITSTrackV1(AliTPCtrack &obj, Double_t fieldfactor); // Standard constructor AliITSTrackV1(const AliITSTrackV1 &cobj); // copy constructor AliITSTrackV1 &operator=(AliITSTrackV1 obj); // operator = ~AliITSTrackV1(); // default destructor Int_t GetNumClust() const { return fNumClustInTrack;} // gets the num of cluster in a track void AddClustInTrack() { fNumClustInTrack++;} // adds a cluster in track TObjArray *GetListOfCluster() const { return flistCluster;} // gets the list of cluster in the track void SetChi2(Double_t chi2) { fChi2 = chi2;} // sets the chisquare value for the track Double_t GetChi2() const { return fChi2;} // gets the chisquare value for the track Double_t GetZ() const {return fX1;} // gets the Z value for the track Double_t GetTgl() const {return fX3;} // gets the tgl value for the track Double_t Getrtrack() const{return frtrack;} // gets the raius value for the current track Double_t Getphi() const{return fX0;} // gets the phi value for the track Double_t GetC() const {return fX4;} // gets the curvature value for the track Double_t GetD() const{return fX2;} // gets the radial impact parameter for the track Double_t GetPt() const {return 0.299792458*0.2*fFieldFactor/(fX4*100.);} // gets the transvers momentum Float_t GetdEdx() const {return fdEdx;} //gets fdEdx // oggi // value for the track void SetVertex(TVector &vert) { for(Int_t i=0;i<3;i++) fVertex(i) = vert(i);} // sets the vertex // cohordinates void SetErrorVertex(TVector &evert) {for(Int_t i=0;i<3;i++) fErrorVertex(i) = evert(i);} // sets the errors //for vertex cohordinates void LmTPC(); // trasform state vector and covariance matrix from local TPC to master TVector GetVertex() const { return fVertex;} TVector GetErrorVertex() const { return fErrorVertex;} Long_t GetLabel() const { return flabel;} void SetLabel(Long_t label) { flabel = label;} Int_t GetLayer() const { return fLayer;} void PutCElements(Double_t C00, Double_t C10, Double_t C11, Double_t C20, Double_t C21, Double_t C22, Double_t C30, Double_t C31, Double_t C32, Double_t C33, Double_t C40, Double_t C41, Double_t C42, Double_t C43, Double_t C44); // put elements of covariance matrix void GetCElements(Double_t &C00, Double_t &C10, Double_t &C11, Double_t &C20, Double_t &C21, Double_t &C22, Double_t &C30, Double_t &C31, Double_t &C32, Double_t &C33, Double_t &C40, Double_t &C41, Double_t &C42, Double_t &C43, Double_t &C44) const; // get elements of covariance matrix void GetXElements(Double_t &X0, Double_t &X1, Double_t &X2, Double_t &X3, Double_t &X4) const; // get elements // of state vector void PutXElements(Double_t X0, Double_t X1, Double_t X2, Double_t X3, Double_t X4); // put elements void PutMass(Double_t mass) {fMass=mass;} // put the particle mass Double_t GetMass() const {return fMass;} // get the particle mass // oggi // of state vector void SetLayer(Int_t layer) { fLayer = layer;} // set current layer AliTPCtrack *GetTPCtrack() const { return fTPCtrack;} // get hte TPC track void PutCluster(Int_t layerc, TVector vecclust); // put information for clusters TVector GetLabTrack(Int_t lay); // get the label of the track void Search(TVector VecTotLabref, Long_t &labref, Int_t &freq); // determine the label and the frequency of // it for the current track Float_t GetZclusterTrack(Int_t lay) {return ((Float_t) (*fClusterInTrack)(lay,2));} // get the Z //cohordinate of the cluster gelonging to the track for a given layer void GetClusters(); // prints the clusters belonging to the current track Int_t GetLabTPC() const {return (*fTPCtrack).GetLabel();} // get the TPC label for the current track Int_t GetIdPoint(Int_t lay) {return ((Int_t) (*fClusterInTrack)(lay,4));} // get the label identifiing the //point of the track Int_t GetIdModule(Int_t lay) {return ((Int_t) (*fClusterInTrack)(lay,5));} // get the label identifiing the // module of the track Float_t GetIdParticle(Int_t lay) {return (*fClusterInTrack)(lay,3);} // get the label to identify // the particle Int_t DoNotCross(Double_t rk) const; // determine if the track cross a layer Double_t ArgA(Double_t rk) const; // quantity usefull in propagation Double_t Arga(Double_t rk) const; // quantity usefull in propagation Double_t ArgB(Double_t rk) const; // quantity usefull in propagation Double_t ArgC(Double_t rk) const; // quantity usefull in propagation void Propagation(Double_t rk) ; // propagation of the track to a layer of radius rk Double_t GetSigmaphi() const{return fC00;} // gets the phi variance Double_t GetSigmaZ() const{return fC11;} // gets the Z variance void AddEL(Double_t signdE, Bool_t flagtot, Double_t mass=0.1396); // adds the energy loss void AddMS(Double_t mass=0.1396); // modify the covariance matrix to take into account the multiple scattering void Correct(Double_t rk); // correct the track to take into account the real detector geometry void SetDv(Double_t x) {fDv=x;} // sets the radial impact parameter for vertex constraint void SetZv(Double_t x) {fZv=x;} // sets longitudinal impact parameter for vertex constraint Double_t GetDv() const {return fDv;} // gets the radial impact parameter for vertex constraint Double_t GetZv() const {return fZv;} // gets longitudinal impact parameter for vertex constraint void SetsigmaDv( Double_t x) {fsigmaDv=x;} // sets sigma for Dv extraction void SetsigmaZv( Double_t x) {fsigmaZv=x;} // sets sigma for Zv extraction void Setfnoclust() {fnoclust++;} //modify fnoclust Double_t GetsigmaDv() const {return fsigmaDv;} // gets sigma for Dv extraction Double_t GetsigmaZv() const {return fsigmaZv;} // gets sigma for Zv extraction void PrimaryTrack(); // calculation of part of covariance matrix for vertex constraint void Setd2(TVector &x) {for(Int_t i=0; i<6; i++){fd2(i)=x(i);}} // sets the vector fd2 void Settgl2(TVector &x) {for(Int_t i=0; i<6; i++){ftgl2(i)=x(i);}} // sets the vector ftgl2 void Setdtgl(TVector &x) {for(Int_t i=0; i<6; i++){fdtgl(i)=x(i);}} // sets the vector fdtgl TVector Getd2() const { return fd2;} // gets the vector fd2 TVector Gettgl2() const { return ftgl2;} // gets the vector ftgl2 TVector Getdtgl() const { return fdtgl;} // gets the vector dtgl Double_t Getd2(Int_t i){return (Double_t)fd2(i);} // gets the i element of the vector fd2 Double_t Gettgl2(Int_t i){return (Double_t)ftgl2(i);} // gets the i element of the vector tgl2 Double_t Getdtgl(Int_t i){return (Double_t)fdtgl(i);} // gets the i element of the vector fdtgl //Double_t GetxoTPC() const {return fxoTPC;} // gets fxoTPC Int_t Getfnoclust() const {return fnoclust;} //gets fnoclust Double_t GetPredChi2(Double_t m[2], Double_t sigma[2]) const; //get predicted chi2 void Setfcor() //set correction for layer // oggi {if(fLayer>=3) fcor[fLayer-3] = 1./TMath::Sqrt(1.+ fX3*fX3);} // oggi Float_t Getfcor(Int_t i) {return fcor[i];} //return correction for layer // oggi //////////////////////////////////////////////////////////////////////////////////////// private: AliTPCtrack *fTPCtrack; // reference to TPC track Double_t fX0,fX1,fX2,fX3,fX4; // state vector: |phi/z/D/tgl/C Double_t frtrack; // radius of courrent layer Double_t fC00, fC10, fC11, // Covariance Matrix fC20, fC21, fC22, // " " fC30, fC31, fC32, // " " fC33, fC40, fC41, // " " fC42, fC43, fC44; // " " Double_t fChi2; // fChi^2 of track TObjArray *flistCluster; // list of clusters of the track Int_t fNumClustInTrack; // total number of clusters Long_t flabel; // label of the track TVector fVertex; // vertex coordinates of the track TVector fErrorVertex; // error on the vertex coordinates Int_t fLayer; // current Layer of the track TMatrix *fClusterInTrack; // matrix of clusters belonging to the track // row index = layer-1; // cols index = master coordinates of the clusters Double_t fFieldFactor; // magnetic field factor Double_t fDv; // radial impact parameter for vertex constraint Double_t fZv; // longitudinal impact parameter for vertex constraint Double_t fsigmaDv; // sigma for Dv extraction Double_t fsigmaZv; // sigma for Zv extraction TVector fd2; // C(2,2) for primary track TVector ftgl2; // C(3,3) for primary track TVector fdtgl; // C(2,3) for primary track Double_t fMass; // tracking particle mass Float_t fdEdx ; // energy loss // oggi Float_t fcor[4]; // corrections for dE/dx // oggi Int_t fnoclust; //nm of layers in which tracking doesn't add a cluster to the track ClassDef(AliITSTrackV1, 1) }; #endif