/* $Id$ */
+/* History of cvs commits:
+ *
+ * $Log$
+ * Revision 1.60 2007/04/01 15:40:15 kharlov
+ * Correction for actual vertex position implemented
+ *
+ * Revision 1.59 2007/03/06 06:57:46 kharlov
+ * DP:calculation of distance to CPV done in TSM
+ *
+ * Revision 1.58 2006/04/12 11:32:03 alibrary
+ * Simplification of Makefile and some small corrections
+ *
+ * Revision 1.57 2006/01/23 17:51:48 hristov
+ * Using the recommended way of forward declarations for TVector and TMatrix (see v5-08-00 release notes). Additional clean-up
+ *
+ * Revision 1.56 2005/05/28 14:19:04 schutz
+ * Compilation warnings fixed by T.P.
+ *
+ */
//_________________________________________________________________________
// Implementation version v1 of the PHOS particle identifier
-// Identification is based on information from PPSD and EMC
-//
-//*-- Author: Yves Schutz (SUBATECH)
-
-// --- ROOT system ---
+// Identification is based on information from CPV and EMC
+// Oh yeah
+//*-- Author: Yves Schutz (SUBATECH), Gustavo Conesa.
// --- Standard library ---
-// --- AliRoot header files ---
+// --- ROOT system ---
+class TCanvas ;
+class TFolder ;
+class TFormula;
+class TPrincipal ;
+class TROOT ;
+class TTree ;
+#include "TVector3.h"
+#include <TMatrixDfwd.h>
+// --- AliRoot header files ---
+class AliPHOSClusterizerv1 ;
+class AliPHOSCpvRecPoint ;
+class AliPHOSEmcRecPoint ;
+class AliPHOSTrackSegment ;
+class AliPHOSTrackSegmentMakerv1 ;
#include "AliPHOSPID.h"
+#include "AliPID.h"
class AliPHOSPIDv1 : public AliPHOSPID {
-
+
public:
-
- AliPHOSPIDv1(): fCutOnDispersion(1.5){}
- virtual ~ AliPHOSPIDv1(){} ; // dtor
-
- virtual void MakeParticles(TrackSegmentsList * trsl, RecParticlesList * rpl ) ; // does the job
- void Print() ;
- virtual void SetDispersionCutOff(Float_t Dcut) {fCutOnDispersion = Dcut ; }
- virtual void SetShowerProfileCuts(Float_t l1m, Float_t l1M, Float_t l2m, Float_t l2M) ;
-
- private:
-
- // cuts on the shower profile
- Float_t fLambda1m ; // minimum value for first elips axis
- Float_t fLambda1M ; // maximum value for first elips axis
- Float_t fLambda2m ; // minimum value for second elips axis
- Float_t fLambda2M ; // maximum value for second elips axis
- Float_t fCutOnDispersion ; // cut on the shower dispersion to distinguish hadronic from EM showers
-
- ClassDef( AliPHOSPIDv1,1) // Particle identifier implementation version 1
+
+ AliPHOSPIDv1() ; // ctor
+ AliPHOSPIDv1(AliPHOSGeometry *geom);
+ AliPHOSPIDv1(const AliPHOSPIDv1 & pid) ; // cpy ctor
+
+ virtual ~AliPHOSPIDv1() ; // dtor
+
+ virtual void TrackSegments2RecParticles(Option_t *option); // Does the job
+
+ //Get file name that contain the PCA
+ const TString GetFileNamePrincipal(TString particle) const;
+
+ //Get file name that contain PID parameters
+ const TString GetFileNameParameters() const {return fFileNameParameters ;}
+
+ // Get PID parameters as they are defined in fParameters
+ Float_t GetParameterCalibration (Int_t i) const;
+ Float_t GetParameterCpv2Emc (Int_t i, TString axis) const;
+ Float_t GetParameterTimeGate (Int_t i) const;
+ Float_t GetParameterToCalculateEllipse(TString particle, TString param, Int_t i) const ;
+ Float_t GetParameterPhotonBoundary (Int_t i) const;
+ Float_t GetParameterPi0Boundary (Int_t i) const;
+
+ // Get energy-dependent PID parameters
+ Float_t GetCpv2EmcDistanceCut (TString axis, Float_t e) const ;
+ Float_t GetEllipseParameter (TString particle, TString param, Float_t e) const;
+
+ Double_t GetThresholdChargedNeutral () const {return fChargedNeutralThreshold;}
+ Float_t GetTOFEnergyThreshold () const {return fTOFEnThreshold;}
+ Float_t GetDispersionEnergyThreshold () const {return fDispEnThreshold;}
+ Int_t GetDispersionMultiplicityThreshold () const {return fDispMultThreshold;}
+
+ //Do bayesian PID
+ void SetBayesianPID(Bool_t set){ fBayesian = set ;}
+
+ // Set PID parameters to change appropriate element of fParameters
+ void SetParameterCalibration (Int_t i, Float_t param);
+ void SetParameterCpv2Emc (Int_t i, TString axis, Float_t cut) ;
+ void SetParameterTimeGate (Int_t i, Float_t gate) ;
+ void SetParameterToCalculateEllipse(TString particle, TString param, Int_t i, Float_t value) ;
+ void SetParameterPhotonBoundary(Int_t i, Float_t param);
+ void SetParameterPi0Boundary (Int_t i, Float_t param);
+
+ void SetThresholdChargedNeutral (Double_t th) {fChargedNeutralThreshold = th;}
+ void SetTOFEnergyThreshold (Float_t th) {fTOFEnThreshold = th;}
+ void SetDispersionEnergyThreshold (Float_t th) {fDispEnThreshold = th;}
+ void SetDispersionMultiplicityThreshold (Int_t th) {fDispMultThreshold = th;}
+
+ //Switch to "on flyght" mode, without writing to TreeR and file
+ void SetWriting(Bool_t toWrite = kFALSE){fWrite = toWrite;}
+ void Print(const Option_t * = "") const ;
+
+ void GetVertex(void) ; //Extracts vertex in current event
+
+ virtual const char * Version() const { return "pid-v1" ; }
+
+ AliPHOSPIDv1 & operator = (const AliPHOSPIDv1 & /*pid*/) { return *this ;}
+
+private:
+
+ virtual void InitParameters() ;
+ void MakeRecParticles(void ) ;
+ void MakePID(void) ;
+
+ //Functions to calculate the PID probability
+ // Double_t ChargedHadronDistProb(Double_t x, Double_t y, Double_t * parg, Double_t * parl) ;
+ Double_t GausF (Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b/(x*x)+c/x
+ Double_t GausPol2(Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b*x+c*x*x
+ Double_t LandauF(Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b/(x*x)+c/x
+ Double_t LandauPol2(Double_t x, Double_t y, Double_t *par) ; //gaussian probability, parameter dependence a+b*x+c*x*x
+ // Relative Distance CPV-EMC
+ Int_t GetCPVBit (AliPHOSTrackSegment * ts, Int_t EffPur, Float_t e) const;
+ Int_t GetPrincipalBit (TString particle, const Double_t* P, Int_t EffPur, Float_t e)const ; //Principal cut
+ Int_t GetHardPhotonBit(AliPHOSEmcRecPoint * emc) const;
+ Int_t GetHardPi0Bit (AliPHOSEmcRecPoint * emc) const;
+ TVector3 GetMomentumDirection(AliPHOSEmcRecPoint * emc, AliPHOSCpvRecPoint * cpv)const ;
+ void PrintRecParticles(Option_t * option) ;
+ void SetParameters() ; //Fills the matrix of parameters
+
+ //PID population
+ void SetInitPID(const Double_t * pid) ;
+ void GetInitPID(Double_t * pid) const ;
+
+private:
+ Bool_t fBayesian ; // Do PID bayesian
+ Bool_t fDefaultInit; //! kTRUE if the task was created by defaut ctor (only parameters are initialized)
+ Bool_t fWrite ; //! To write result to file
+ TString fFileNamePrincipalPhoton ; // File name of the photon principals
+ TString fFileNamePrincipalPi0 ; // File name of the pi0 principals
+ TString fFileNameParameters ; // File name with PID parameters
+ TPrincipal *fPrincipalPhoton ; //! TPrincipal from photon pca file
+ TPrincipal *fPrincipalPi0 ; //! TPrincipal from pi0 pca file
+ Double_t *fX ; //! Shower shape for the principal data
+ Double_t *fPPhoton ; //! Principal photon eigenvalues
+ Double_t *fPPi0 ; //! Principal pi0 eigenvalues
+ TMatrixF *fParameters; //! Matrix of identification Parameters
+
+ TVector3 fVtx ; //! Vertex position in current event
+
+ //Initial pid population
+ Double_t fInitPID[AliPID::kSPECIESN] ; // Initial population to do bayesian PID
+ // pid probability function parameters
+ // ToF
+ Double_t fTphoton[3] ; // gaussian tof response for photon
+ TFormula * fTFphoton ; // the formula
+ Double_t fTpiong[3] ; // gaussian tof response for pions
+ TFormula * fTFpiong ; // the formula
+ Double_t fTkaong[3] ; // landau tof response for kaons
+ TFormula * fTFkaong ; // the formula
+ Double_t fTkaonl[3] ; // landau tof response for kaons
+ TFormula * fTFkaonl ; // the formula
+ Double_t fThhadrong[3] ; // gaus tof response for heavy hadrons
+ TFormula * fTFhhadrong ; // the formula
+ Double_t fThhadronl[3] ; // landau tof response for heavy hadrons
+ TFormula * fTFhhadronl ; // the formula
+
+ //Shower dispersion
+ Double_t fDmuon[3] ; // gaussian ss response for muon
+ TFormula * fDFmuon ; // the formula
+ Double_t fDphoton[10] ; // gaussian ss response for EM
+ Double_t fDpi0[10] ; // gaussian ss response for pi0
+ Double_t fDhadron[10] ; // gaussian ss response for hadrons
+
+ Double_t fXelectron[10] ; // gaussian emc-cpv distance response for electron
+ Double_t fXcharged[10] ; // landau emc-cpv distance response for charged part (no elect) */
+ Double_t fZelectron[10] ; // gaussian emc-cpv distance response for electron
+ Double_t fZcharged[10] ; // landau emc-cpv distance response for charged part (no elect) */
+
+
+ Double_t fERecWeightPar[4] ; // gaussian tof response for photon
+ TFormula * fERecWeight ; // the formula
+ Double_t fChargedNeutralThreshold ; //Threshold to differentiate between charged and neutral
+ Float_t fTOFEnThreshold; //Maximum energy to use TOF
+ Float_t fDispEnThreshold; //Minimum energy to use shower shape
+ Int_t fDispMultThreshold ; //Minimum multiplicity to use shower shape
+
+ ClassDef( AliPHOSPIDv1,13) // Particle identifier implementation version 1
};
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff