3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
6 //_________________________________________________________________________
8 // Class for the photon identification.
9 // Clusters from calorimeters are identified as photons
10 // and kept in the AOD. Few histograms produced.
11 // Produces input for other analysis classes like AliAnaPi0,
12 // AliAnaParticleHadronCorrelation ...
15 //-- Author: Gustavo Conesa (INFN-LNF)
17 // --- ROOT system ---
24 // --- ANALYSIS system ---
25 #include "AliAnaCaloTrackCorrBaseClass.h"
27 class AliAnaPhoton : public AliAnaCaloTrackCorrBaseClass {
30 AliAnaPhoton() ; // default ctor
31 virtual ~AliAnaPhoton() { ; } // virtual dtor
33 //---------------------------------------
34 // General analysis frame methods
35 //---------------------------------------
37 TObjString * GetAnalysisCuts();
39 TList * GetCreateOutputObjects();
43 void InitParameters();
45 void MakeAnalysisFillAOD() ;
47 void MakeAnalysisFillHistograms() ;
49 void Print(const Option_t * opt)const;
54 Bool_t ClusterSelected(AliVCluster* cl, TLorentzVector mom) ;
56 void FillAcceptanceHistograms();
58 void FillShowerShapeHistograms( AliVCluster* cluster, const Int_t mcTag) ;
60 void SwitchOnFillShowerShapeHistograms() { fFillSSHistograms = kTRUE ; }
61 void SwitchOffFillShowerShapeHistograms() { fFillSSHistograms = kFALSE ; }
63 void FillTrackMatchingResidualHistograms(AliVCluster* calo, const Int_t cut);
65 void SwitchOnTMHistoFill() { fFillTMHisto = kTRUE ; }
66 void SwitchOffTMHistoFill() { fFillTMHisto = kFALSE ; }
69 // Analysis parameters setters getters
71 TString GetCalorimeter() const { return fCalorimeter ; }
72 void SetCalorimeter(TString & det) { fCalorimeter = det ; }
74 // ** Cluster selection methods **
76 void SetMinDistanceToBadChannel(Float_t m1, Float_t m2, Float_t m3) {
77 fMinDist = m1; fMinDist2 = m2; fMinDist3 = m3; }
79 void SetTimeCut(Double_t min, Double_t max) { fTimeCutMin = min;
81 Double_t GetTimeCutMin() const { return fTimeCutMin ; }
82 Double_t GetTimeCutMax() const { return fTimeCutMax ; }
84 void SetNCellCut(Int_t n) { fNCellsCut = n ; }
85 Double_t GetNCellCut() const { return fNCellsCut ; }
87 Bool_t IsTrackMatchRejectionOn() const { return fRejectTrackMatch ; }
88 void SwitchOnTrackMatchRejection() { fRejectTrackMatch = kTRUE ; }
89 void SwitchOffTrackMatchRejection() { fRejectTrackMatch = kFALSE ; }
91 void FillNOriginHistograms(Int_t n) { fNOriginHistograms = n ;
92 if(n > 14) fNOriginHistograms = 14; }
93 void FillNPrimaryHistograms(Int_t n) { fNPrimaryHistograms= n ;
94 if(n > 7) fNPrimaryHistograms = 7; }
96 // For histograms in arrays, index in the array, corresponding to a particle
97 enum mcTypes { kmcPhoton = 0, kmcPi0Decay = 1, kmcOtherDecay = 2,
98 kmcPi0 = 3, kmcEta = 4, kmcElectron = 5,
99 kmcConversion = 6, kmcOther = 7, kmcAntiNeutron = 8,
100 kmcAntiProton = 9, kmcPrompt = 10, kmcFragmentation = 11,
101 kmcISR = 12, kmcString = 13 };
103 enum mcPTypes { kmcPPhoton = 0, kmcPPi0Decay = 1, kmcPOtherDecay = 2, kmcPOther = 3,
104 kmcPPrompt = 4, kmcPFragmentation = 5, kmcPISR = 6 };
106 enum mcssTypes { kmcssPhoton = 0, kmcssOther = 1, kmcssPi0 = 2,
107 kmcssEta = 3, kmcssConversion = 4, kmcssElectron = 5 };
111 TString fCalorimeter ; // Calorimeter where the gamma is searched;
112 Float_t fMinDist ; // Minimal distance to bad channel to accept cluster
113 Float_t fMinDist2; // Cuts on Minimal distance to study acceptance evaluation
114 Float_t fMinDist3; // One more cut on distance used for acceptance-efficiency study
115 Bool_t fRejectTrackMatch ; // If PID on, reject clusters which have an associated TPC track
116 Bool_t fFillTMHisto; // Fill track matching plots
117 Double_t fTimeCutMin ; // Remove clusters/cells with time smaller than this value, in ns
118 Double_t fTimeCutMax ; // Remove clusters/cells with time larger than this value, in ns
119 Int_t fNCellsCut ; // Accept for the analysis clusters with more than fNCellsCut cells
120 Bool_t fFillSSHistograms ; // Fill shower shape histograms
121 Int_t fNOriginHistograms; // Fill only NOriginHistograms of the 14 defined types
122 Int_t fNPrimaryHistograms; // Fill only NPrimaryHistograms of the 7 defined types
125 TH1F * fhClusterCuts[9]; //! control histogram on the different photon selection cuts
126 TH2F * fhNCellsE; //! number of cells in cluster vs E
127 TH2F * fhCellsE; //! energy of cells in cluster vs E of cluster
128 TH2F * fhMaxCellDiffClusterE; //! Fraction of energy carried by cell with maximum energy
129 TH2F * fhTimeE; //! time of cluster vs E
131 TH1F * fhEPhoton ; //! Number of identified photon vs energy
132 TH1F * fhPtPhoton ; //! Number of identified photon vs transerse momentum
133 TH2F * fhPhiPhoton ; //! Azimuthal angle of identified photon vs transerse momentum
134 TH2F * fhEtaPhoton ; //! Pseudorapidity of identified photon vs transerse momentum
135 TH2F * fhEtaPhiPhoton ; //! Pseudorapidity vs Phi of identified photon for transerse momentum > 0.5
136 TH2F * fhEtaPhi05Photon ; //! Pseudorapidity vs Phi of identified photon for transerse momentum < 0.5
140 TH2F * fhDispE; //! cluster dispersion vs E
141 TH2F * fhLam0E; //! cluster lambda0 vs E
142 TH2F * fhLam1E; //! cluster lambda1 vs E
144 TH2F * fhDispETRD; //! cluster dispersion vs E, SM covered by TRD
145 TH2F * fhLam0ETRD; //! cluster lambda0 vs E, SM covered by TRD
146 TH2F * fhLam1ETRD; //! cluster lambda1 vs E, SM covered by TRD
148 TH2F * fhDispETM; //! cluster dispersion vs E, cut on Track Matching residual
149 TH2F * fhLam0ETM; //! cluster lambda0 vs E, cut on Track Matching residual
150 TH2F * fhLam1ETM; //! cluster lambda1 vs E, cut on Track Matching residual
152 TH2F * fhDispETMTRD; //! cluster dispersion vs E, SM covered by TRD, cut on Track Matching residual
153 TH2F * fhLam0ETMTRD; //! cluster lambda0 vs E, SM covered by TRD, cut on Track Matching residual
154 TH2F * fhLam1ETMTRD; //! cluster lambda1 vs E, SM covered by TRD, cut on Track Matching residual
157 TH2F * fhNCellsLam0LowE; //! number of cells in cluster vs lambda0
158 TH2F * fhNCellsLam1LowE; //! number of cells in cluster vs lambda1
159 TH2F * fhNCellsDispLowE; //! number of cells in cluster vs dispersion
160 TH2F * fhNCellsLam0HighE; //! number of cells in cluster vs lambda0, E>2
161 TH2F * fhNCellsLam1HighE; //! number of cells in cluster vs lambda1, E>2
162 TH2F * fhNCellsDispHighE; //! number of cells in cluster vs dispersion, E>2
164 TH2F * fhEtaLam0LowE; //! cluster eta vs lambda0, E<2
165 TH2F * fhPhiLam0LowE; //! cluster phi vs lambda0, E<2
166 TH2F * fhEtaLam0HighE; //! cluster eta vs lambda0, E>2
167 TH2F * fhPhiLam0HighE; //! cluster phi vs lambda0, E>2
168 TH2F * fhLam0DispLowE; //! cluster lambda0 vs dispersion, E<2
169 TH2F * fhLam0DispHighE; //! cluster lambda0 vs dispersion, E>2
170 TH2F * fhLam1Lam0LowE; //! cluster lambda1 vs lambda0, E<2
171 TH2F * fhLam1Lam0HighE; //! cluster lambda1 vs lambda0, E>2
172 TH2F * fhDispLam1LowE; //! cluster disp vs lambda1, E<2
173 TH2F * fhDispLam1HighE; //! cluster disp vs lambda1, E>2
175 //Fill MC dependent histograms, Origin of this cluster is ...
177 TH2F * fhMCDeltaE[14] ; //! MC-Reco E distribution coming from MC particle
178 TH2F * fhMCDeltaPt[14] ; //! MC-Reco pT distribution coming from MC particle
179 TH2F * fhMC2E[14] ; //! E distribution, Reco vs MC coming from MC particle
180 TH2F * fhMC2Pt[14] ; //! pT distribution, Reco vs MC coming from MC particle
182 TH1F * fhMCE[14]; //! Number of identified photon vs cluster energy coming from MC particle
183 TH1F * fhMCPt[14]; //! Number of identified photon vs cluster pT coming from MC particle
184 TH2F * fhMCPhi[14]; //! Phi of identified photon coming from MC particle
185 TH2F * fhMCEta[14]; //! eta of identified photon coming from MC particle
187 TH1F * fhEPrimMC[7]; //! Number of generated photon vs energy
188 TH1F * fhPtPrimMC[7]; //! Number of generated photon vs pT
189 TH2F * fhPhiPrimMC[7]; //! Phi of generted photon
190 TH2F * fhYPrimMC[7]; //! Rapidity of generated photon
192 TH1F * fhEPrimMCAcc[7]; //! Number of generated photon vs energy, in calorimeter acceptance
193 TH1F * fhPtPrimMCAcc[7]; //! Number of generated photon vs pT, in calorimeter acceptance
194 TH2F * fhPhiPrimMCAcc[7]; //! Phi of generted photon, in calorimeter acceptance
195 TH2F * fhYPrimMCAcc[7]; //! Rapidity of generated photon, in calorimeter acceptance
199 TH2F * fhMCELambda0[6] ; //! E vs Lambda0 from MC particle
200 TH2F * fhMCELambda1[6] ; //! E vs Lambda1 from MC particle
201 TH2F * fhMCEDispersion[6] ; //! E vs Dispersion from MC particle
203 TH2F * fhMCPhotonELambda0NoOverlap ; //! E vs Lambda0 from MC photons, no overlap
204 TH2F * fhMCPhotonELambda0TwoOverlap ; //! E vs Lambda0 from MC photons, 2 particles overlap
205 TH2F * fhMCPhotonELambda0NOverlap ; //! E vs Lambda0 from MC photons, N particles overlap
207 TH2F * fhMCLambda0vsClusterMaxCellDiffE0[6]; //! Lambda0 vs fraction of energy of max cell for E < 2 GeV
208 TH2F * fhMCLambda0vsClusterMaxCellDiffE2[6]; //! Lambda0 vs fraction of energy of max cell for 2< E < 6 GeV
209 TH2F * fhMCLambda0vsClusterMaxCellDiffE6[6]; //! Lambda0 vs fraction of energy of max cell for E > 6 GeV
210 TH2F * fhMCNCellsvsClusterMaxCellDiffE0[6]; //! NCells vs fraction of energy of max cell for E < 2
211 TH2F * fhMCNCellsvsClusterMaxCellDiffE2[6]; //! NCells vs fraction of energy of max cell for 2 < E < 6 GeV
212 TH2F * fhMCNCellsvsClusterMaxCellDiffE6[6]; //! NCells vs fraction of energy of max cell for E > 6
213 TH2F * fhMCNCellsE[6]; //! NCells per cluster vs energy
214 TH2F * fhMCMaxCellDiffClusterE[6]; //! Fraction of energy carried by cell with maximum energy
217 TH2F * fhEmbeddedSignalFractionEnergy ; //! Fraction of photon energy of embedded signal vs cluster energy
219 TH2F * fhEmbedPhotonELambda0FullSignal ; //! Lambda0 vs E for embedded photons with more than 90% of the cluster energy
220 TH2F * fhEmbedPhotonELambda0MostlySignal ; //! Lambda0 vs E for embedded photons with 90%<fraction<50%
221 TH2F * fhEmbedPhotonELambda0MostlyBkg ; //! Lambda0 vs E for embedded photons with 50%<fraction<10%
222 TH2F * fhEmbedPhotonELambda0FullBkg ; //! Lambda0 vs E for embedded photons with less than 10% of the cluster energy
224 TH2F * fhEmbedPi0ELambda0FullSignal ; //! Lambda0 vs E for embedded photons with more than 90% of the cluster energy
225 TH2F * fhEmbedPi0ELambda0MostlySignal ; //! Lambda0 vs E for embedded photons with 90%<fraction<50%
226 TH2F * fhEmbedPi0ELambda0MostlyBkg ; //! Lambda0 vs E for embedded photons with 50%<fraction<10%
227 TH2F * fhEmbedPi0ELambda0FullBkg ; //! Lambda0 vs E for embedded photons with less than 10% of the cluster energy
230 TH2F * fhTrackMatchedDEta[2] ; //! Eta distance between track and cluster vs cluster E, after and before photon cuts
231 TH2F * fhTrackMatchedDPhi[2] ; //! Phi distance between track and cluster vs cluster E, after and before photon cuts
232 TH2F * fhTrackMatchedDEtaDPhi[2] ; //! Eta vs Phi distance between track and cluster, E cluster > 0.5 GeV, after and before photon cuts
234 TH2F * fhTrackMatchedDEtaTRD[2] ; //! Eta distance between track and cluster vs cluster E, after and before photon cuts, behind TRD
235 TH2F * fhTrackMatchedDPhiTRD[2] ; //! Phi distance between track and cluster vs cluster E, after and before photon cuts, behind TRD
237 TH2F * fhTrackMatchedDEtaMCOverlap[2] ; //! Eta distance between track and cluster vs cluster E, several particle overlap, after and before photon cuts
238 TH2F * fhTrackMatchedDPhiMCOverlap[2] ; //! Phi distance between track and cluster vs cluster E, several particle overlap, after and before photon cuts
239 TH2F * fhTrackMatchedDEtaMCNoOverlap[2]; //! Eta distance between track and cluster vs cluster E, not other particle overlap, after and before photon cuts
240 TH2F * fhTrackMatchedDPhiMCNoOverlap[2]; //! Phi distance between track and cluster vs cluster E, not other particle overlap, after and before photon cuts
241 TH2F * fhTrackMatchedDEtaMCConversion[2]; //! Eta distance between track and cluster vs cluster E, originated in conversion, after and before photon cuts
242 TH2F * fhTrackMatchedDPhiMCConversion[2]; //! Phi distance between track and cluster vs cluster E, originated in conversion, after and before photon cuts
244 TH2F * fhTrackMatchedMCParticle[2]; //! Trace origin of matched particle
245 TH2F * fhdEdx[2]; //! matched track dEdx vs cluster E, after and before photon cuts
246 TH2F * fhEOverP[2]; //! matched track E cluster over P track vs cluster E, after dEdx cut, after and before photon cuts
247 TH2F * fhEOverPTRD[2]; //! matched track E cluster over P track vs cluster E, after dEdx cut, after and before photon cuts, behind TRD
249 AliAnaPhoton( const AliAnaPhoton & g) ; // cpy ctor
250 AliAnaPhoton & operator = (const AliAnaPhoton & g) ; // cpy assignment
252 ClassDef(AliAnaPhoton,23)
256 #endif//ALIANAPHOTON_H