1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
16 //2- and 3-particle trigger particle correlation analysis
17 //Author: Jason Glyndwr Ulery, ulery@uni-frankfurt.de
18 //version 3.4, last revised 2010/08/15
20 #ifndef ALIANALYSISTASKDIHADRON_H
21 #define ALIANALYSISTASKDIHADRON_H
30 #include "AliAnalysisTask.h"
33 class AliAnalysisTaskDiHadron : public AliAnalysisTask{
38 AliAnalysisTaskDiHadron(const char *name="AliAnalysisTaskDiHadron");
40 virtual ~AliAnalysisTaskDiHadron() {}
41 //virtual ~AliAnalysisTaskDiHadron();
45 //AliAnalysisTask Functions
47 virtual void ConnectInputData(Option_t *option);
48 virtual void CreateOutputObjects();
49 virtual void Exec(Option_t *option);
50 virtual void Terminate(Option_t *);
53 void SetEfficiencies(Float_t EffFitPt, const TF1 *FitLow, const TF1 *FitHigh, Int_t NFitLowParam, Int_t NFitHighParam, Float_t *FitLowParam, Float_t *FitHighParam);
54 void SetBins(Int_t nBinPhi, Int_t nBinEta, Int_t nBinPhiEtaPhi, Int_t nBinPhiEtaEta, Int_t nBinPhi3, Int_t nBinEta3, Float_t dPhiMin, Float_t dPhiMax, Int_t NTPtBins, Int_t NMixBins, Int_t NCentBins,Int_t NAPtBins, Int_t NAPt3Bins, Int_t NVertexBins, Int_t NXEBin,Float_t *PtTrigArray, Float_t *PtAssocArray, Float_t *PtAssoc3Array1, Float_t *PtAssoc3Array2, Int_t *CentArrayMin, Int_t *CentArrayMax, Float_t *XEArray);
55 void SetOptions(Int_t fEfficiencyCorr, Int_t fDEBUG,Int_t fMCHistos);
56 void SetCuts(Int_t MinClutersTPC, Float_t MinClusterRatio, Float_t MaxTPCchi2, Int_t MinClustersITS, Float_t EtaCut, Float_t TrigEtaCut, Float_t NearPhiCut, Float_t XECut, Float_t MaxDCA, Float_t MaxDCAXY, Float_t MaxDCAZ, Int_t DCA2D, Int_t TPCRefit, Int_t ITSRefit, Int_t SPDCut, Float_t MinPtAssoc, Float_t MaxPtAssoc, Float_t VzCut, Int_t NIDs, const char *TrigIDArray);
57 Int_t CheckVertex(const AliESDEvent *rESD);
58 Int_t CheckTrigger(const AliESDEvent *rESD);
59 Int_t TrackCuts(const AliESDEvent *rESD, Float_t *rPt, Float_t *rEta, Float_t *rPhi, Short_t *rCharge, Float_t *rEff, Int_t **rPtAssoc3, Int_t *rNPtAssoc3, Int_t *rGoodTracks);
60 Int_t TrackCutsMC(AliMCEvent *rMC, Float_t *rPt, Float_t *rEta, Float_t *rPhi, Short_t *rCharge, Float_t *rEff, Int_t **rPtAssoc3, Int_t *rNPtAssoc3, Int_t *rGoodTracks);
65 //Maximum numbers for creating the arrays
66 enum{kNumberOfPtBins=20,
70 kNumberOfTriggerIDs=10,
71 kNumberOfVertexBins=20,
73 kNumberOfEventsToMix=100};
74 // virtual void SetParameters();
75 AliESDEvent *fESD; //ESD data file
76 AliMCEvent *fMC;//Monty Carlo event file
77 TList *fOutput;//List used to store all the histograms for output
81 Int_t fMinClustersTPC;//Minimum Clusters in the TPC
82 Float_t fMinClusterRatio;//Ratio of MinClusters to Number of Possible Clusters in TPC
83 Float_t fMaxTPCchi2;//Max chi^2/ndf for TPC fit
84 Int_t fMinClustersITS;//Minimum Clusters in ITS
85 Float_t fEtaCut;//Associated particle eta range |eta|<fEtaCut
86 Float_t fTrigEtaCut;//Trigger particle eta range |eta|<fTrigEtaCut (should be <=fEtaCut)
87 Float_t fNearPhiCut;//Point in DeltaPhi seperating near and away sides
88 Float_t fXECut;//Point in DeltaPhi seperating near and away for XE (not finished)
89 Float_t fMaxDCA;//Max total DCA (if fDCA2D==0) (in cm)
90 Float_t fMaxDCAXY;//Max radial DCA (if fDCA2D==1)
91 Float_t fMaxDCAZ;//Max longitudional DCA (if fDCA2D==1)
92 Int_t fDCA2D;//1 cut on total DCA, 2 cut seperately on radial and logitudional, 3 pt dependent cut
93 Int_t fTPCRefit;//1 require TPCRefit 0 not
94 Int_t fITSRefit;//1 require ITSRefit 0 not
95 Int_t fSPDCut;//1 require a point in the SPD 0 not
96 Float_t fMinPtAssoc;//Minimum pT to look at
97 Float_t fMaxPtAssoc;//Maximum pT to look at
98 Float_t fVzCut;//z-vertex cut |z-vertex|<fVzCut in cm
99 Int_t fEfficiencyCorr;//Toggle correcting of efficiencies when filling histograms
100 Int_t fDEBUG;//if 1 extra printfs for debugging
103 Int_t fnBinPhi;//Number of bins for DeltaPhi histograms
104 Int_t fnBinEta;//Number of bins for DeltaEta histograms
105 Int_t fnBinPhiEtaPhi;//Number of bins for DeltaPhi-DeltaEta histograms in Phi
106 Int_t fnBinPhiEtaEta;//Number of bins for DeltaPhi-DeltaEta histograms in Eta
107 Int_t fnBinPhi3;//Number of bins in 3-particle DeltaPhi-DeltaPhi (along each axis)
108 Int_t fnBinEta3;//Number of bins in 3-particle DeltaEta-DeltaEta (along each axis)
109 Float_t fPi;//Pi=3.14....
110 Float_t fdPhiMin;//lowest edge of the first bin in DeltaPhi plots
111 Float_t fdPhiMax;//maximum in DeltaPhi plots (should be 2*Pi+fdPhiMin)
113 //Parameters for settings
114 Int_t fNTPtBins;//Number of trigger pt bins
115 Int_t fNMix;//Number of events to mix
116 Int_t fNCentBins;//Number of centrality bins (they are allowed to overlap)
117 Int_t fNAPtBins;//Number of associated particle bins for 2-particle correlations (overlap not allowed)
118 Int_t fNAPt3Bins;//Number of associated particle bins for 3-particle correlations (overlap allowed)
119 Int_t fNVertexBins;//Number of bins in z-vertex for mixing
120 Int_t fNXEBins;//Number of bins for XE distribution (not finished)
121 Int_t fNIDs;//Number of trigger IDs (such as CINT1B)
122 Float_t fEffFitPt;//Pt cut used to divide efficiciency fits into low and high pt
123 Int_t fNFitLowParam;//Number of fit parameters for low pt efficeincy fit
124 Int_t fNFitHighParam;//Number of fit parameters for high pt efficeincy fit
125 Int_t fMCHistos;//Toggle whether to make Monty Carlo histograms (if made and ran on data will simply be empty not cause a crash)
127 TF1 *fFitLow;//Low pt efficiency fit function
128 TF1 *fFitHigh;//High pt efficiency fit function
129 Float_t *fFitLowParam; //fit parameters for low pt efficiency fit function
130 Float_t *fFitHighParam;//fit parameters for high pt efficiency fit function
132 Float_t *fPtTrigArray;//Array for trigger pt bins
133 Float_t *fPtAssocArray;//Array for associated pt bins (2-particle correlations)
134 //2 arrays to allow overlaping bins
135 Float_t *fPtAssoc3Array1;//lower bin edge for 3-particle correlations associated pt bins
136 Float_t *fPtAssoc3Array2; //upper bin eged for 3-particle correlations associated pt bins
137 //2 arrays to allow oeverlaping bins
138 Int_t *fCentArrayMin;//lower bin edge for centrality bins (based on SPD tracklet multiplicity)
139 Int_t *fCentArrayMax;//upper bin edge for centraily bins
140 Float_t *fXEArray;//XE bin array
141 char *fTrigIDArray;//array of trigger ids (such as CINT1B)
143 Float_t fVertexArray[(kNumberOfVertexBins+1)];//array for dividing z vertex into bins for event mixing
146 TH1F *fHistPt[kNumberOfCentBins][2];//Pt Distribution of tracks (no efficency correction)
147 TH1F *fHistPtEff[kNumberOfCentBins][2];//Pt Distribution of tracks (efficnecy corrected if set)
148 TH1F *fHistPtTrig[kNumberOfPtBins][kNumberOfCentBins][2];//Pt Distributions of tracks from triggered events
149 TH1F *fHistMult[2];//Multipuliciy Distributions
150 TH1F *fHistMultTrig[kNumberOfPtBins][2];//Multiplicity Distributions of triggered events
152 TH2F *fHistPhi[kNumberOfCentBins][2];//Phi Distributions of tracks
153 TH2F *fHistPhiTrig[kNumberOfPtBins][kNumberOfCentBins][2];//Phi Distributions fo tracks in triggered events
154 TH2F *fHistDeltaPhi[kNumberOfPtBins][kNumberOfCentBins][3][2];//DeltaPhi 2-particle distributions
155 TH2F *fHistDeltaPhiMix[kNumberOfPtBins][kNumberOfCentBins][3][2];//DeltaPhi 2-particle distributions from mixed events
157 TH2F *fHistPhiPt[kNumberOfCentBins][2];//Pt weighed phi distributions
158 TH2F *fHistPhiTrigPt[kNumberOfPtBins][kNumberOfCentBins][2];//Pt weighted phi distributions from triggered events
159 TH2F *fHistDeltaPhiPt[kNumberOfPtBins][kNumberOfCentBins][3][2];//DeltaPhi 2-partricle pt weighted distributions
160 TH2F *fHistDeltaPhiMixPt[kNumberOfPtBins][kNumberOfCentBins][3][2];//DeltaPhi 2-particle pt weigthed distributions from mixed events
162 TH2F *fHistEta[kNumberOfCentBins][2];//Eta distributions
163 TH2F *fHistEtaTrig[kNumberOfPtBins][kNumberOfCentBins][2];//Eta distributions from mixed events
165 TH2F *fHistEtaPt[kNumberOfCentBins][2];//Pt-weighted Eta distributions
166 TH2F *fHistEtaTrigPt[kNumberOfPtBins][kNumberOfCentBins][2];//Pt-weighted Eta diestibutions from mixed events
168 TH2F *fHistDeltaEtaN[kNumberOfPtBins][kNumberOfCentBins][3][2];//Near-side 2-particle DeltaEta distributions
169 TH2F *fHistDeltaEtaNMix[kNumberOfPtBins][kNumberOfCentBins][3][2];//Near-side 2-particle DeltaEta distributions from mxied events
171 TH2F *fHistDeltaEtaNPt[kNumberOfPtBins][kNumberOfCentBins][3][2];//Near-side pt weighted 2-particle DeltaEta distributions
172 TH2F *fHistDeltaEtaNMixPt[kNumberOfPtBins][kNumberOfCentBins][3][2];//Near-side pt-weighted 2-particle DeltaEta distributions from mixed events
174 TH2F *fHistDeltaEtaA[kNumberOfPtBins][kNumberOfCentBins][3][2];//Away-side DeltaEta distributions
175 TH2F *fHistDeltaEtaAMix[kNumberOfPtBins][kNumberOfCentBins][3][2];//Away-side DeltaEta distributions from mixed events
177 TH2F *fHistDeltaEtaAPt[kNumberOfPtBins][kNumberOfCentBins][3][2];//Away-side pt-weighted DeltaEta distributions from mixed events
178 TH2F *fHistDeltaEtaAMixPt[kNumberOfPtBins][kNumberOfCentBins][3][2];//Away-side pt-weigthed DeltaEta distributions from mixed events
180 TH1F *fHistNEvents[kNumberOfCentBins][2];//Number of events count
181 TH1F *fHistNTrigger[kNumberOfCentBins][2];//Number of triggers count
182 TH1F *fHistNTriggerPt[kNumberOfCentBins][2];//Pt-weighted number of triggers count
183 TH1F *fHistNMix[kNumberOfCentBins][2];//Number of mixed events count
185 TH3F *fHistPhiEta[kNumberOfCentBins][2];//Phi-Eta distributions
186 TH3F *fHistPhiEtaTrig[kNumberOfPtBins][kNumberOfCentBins][2];//Phi-Eta distributions in triggered events
187 TH3F *fHistDeltaPhiEta[kNumberOfPtBins][kNumberOfCentBins][2];//DeltaPhi-DeltaEta 2-particle distributions
188 TH3F *fHistDeltaPhiEtaMix[kNumberOfPtBins][kNumberOfCentBins][2];//DeltaPhi-DeltaEta 2-particle distributions from mixed events
190 TH3F *fHistPhiEtaPt[kNumberOfCentBins][2];//Pt-weighted Phi-Eta distributions
191 TH3F *fHistPhiEtaTrigPt[kNumberOfPtBins][kNumberOfCentBins][2];//Pt-weighted Phi-Eta distributions from triggered events
192 TH3F *fHistDeltaPhiEtaPt[kNumberOfPtBins][kNumberOfCentBins][2];//Pt-weighted DeltaPhi-DeltaEta 2-particle distributions
193 TH3F *fHistDeltaPhiEtaMixPt[kNumberOfPtBins][kNumberOfCentBins][2];//Pt-weigthed DeltaPhi-DeltaEta 2-particle distributions from mixed events
195 TH1F *fHistXEN[kNumberOfPtBins][kNumberOfCentBins][2];//XE Near-side (not finished)
196 TH1F *fHistXENMix[kNumberOfPtBins][kNumberOfCentBins][2];//XE near-side from mixed events (not finished)
197 TH1F *fHistXEA[kNumberOfPtBins][kNumberOfCentBins][2];//XE away-side (not finished)
198 TH1F *fHistXEAMix[kNumberOfPtBins][kNumberOfCentBins][2];//XE away-side from mxied events (not finished)
200 //Three-Particle Histograms
201 TH2F *fHistDeltaPhiPhi[kNumberOfPtBins][kNumberOfApt3Bins][kNumberOfCentBins][4][2];//DeltaPhi-DeltaPhi 3-particle distributions
202 TH2F *fHistDeltaPhiPhiMix[kNumberOfPtBins][kNumberOfApt3Bins][kNumberOfCentBins][4][2];//DeltaPhi-DeltaPhi 3-particle distributions from mixed events
203 TH2F *fHistDeltaPhiPhiSS[kNumberOfPtBins][kNumberOfApt3Bins][kNumberOfCentBins][4][2];//DeltaPhi-DeltaPhi 3-particle soft-soft background term (from mixing)
204 TH2F *fHistDeltaEtaEta[kNumberOfPtBins][kNumberOfApt3Bins][kNumberOfCentBins][4][2];//DeltaEta-DeltaEta 3-particle distributions
205 TH2F *fHistDeltaEtaEtaMix[kNumberOfPtBins][kNumberOfApt3Bins][kNumberOfCentBins][4][2];//DeltaEta-DeltaEta 3-particle distributions from Mixed Events
206 TH2F *fHistDeltaEtaEtaSS[kNumberOfPtBins][kNumberOfApt3Bins][kNumberOfCentBins][4][2];//DeltaEta-DeltaEta 3-particle distributions soft-soft background term (from mixing)
211 //Arrays for event mixing (only need parameters of tracks passing cuts kept)
212 Float_t *fMPt[kNumberOfEventsToMix][kNumberOfCentBins][kNumberOfVertexBins][2];//Pt array (mixed events)
213 Float_t *fMPhi[kNumberOfEventsToMix][kNumberOfCentBins][kNumberOfVertexBins][2]; //Phi array (mixed events)
214 Int_t fMixTrack[kNumberOfEventsToMix][kNumberOfCentBins][kNumberOfVertexBins][2];//Number of tracks in the event stored (mixed events)
215 Float_t *fMEta[kNumberOfEventsToMix][kNumberOfCentBins][kNumberOfVertexBins][2];//Eta Array (mixed events)
216 Short_t *fMCharge[kNumberOfEventsToMix][kNumberOfCentBins][kNumberOfVertexBins][2];//Charge array (mixed events)
217 Float_t *fMEff[kNumberOfEventsToMix][kNumberOfCentBins][kNumberOfVertexBins][2];//Efficiency correction array (mixed events)
218 Int_t fMixPointer[kNumberOfCentBins][kNumberOfVertexBins][2];//which event should be replaced with newest mixed event (mixed events)
219 Int_t fMixEnd[kNumberOfCentBins][kNumberOfVertexBins][2]; //current depth of mixed event pool (mixed events)
220 //additional ones to speed up the 3-particle correlations
221 Short_t *fMPtAssoc3[kNumberOfEventsToMix][kNumberOfCentBins][kNumberOfVertexBins][2][10];//which 3-particle pt bin(s) the track is in, using a bit extra memory fixing the pt bins to 10, but makes the arrays much easier (mixed events)
222 Short_t *fMNPtAssoc3[kNumberOfEventsToMix][kNumberOfCentBins][kNumberOfVertexBins][2];//number of 3-particle pt bins the track is in (mixed events)
225 //Arrays for Main Events
226 Float_t *ftPhi;//Phi array (current event)
227 Float_t *ftEta;//Eta array (current event)
228 Float_t *ftPt;//Pt Array (current event)
229 Short_t *ftCharge;//Charge Array (current event)
230 Float_t *ftEff;//Efficneicy Array (current event)
231 Int_t **ftPtAssoc3;//which 3-particle bins the track is in (current event)
232 Int_t *ftNPtAssoc3;//number of 3-particle bins the track is in (current event)
234 AliAnalysisTaskDiHadron(const AliAnalysisTaskDiHadron&);//not implimented
235 AliAnalysisTaskDiHadron& operator=(const AliAnalysisTaskDiHadron&);//not implimnted
237 ClassDef(AliAnalysisTaskDiHadron,1);