1 #ifndef ALIDIELECTRON_H
2 #define ALIDIELECTRON_H
3 /* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
6 //#####################################################
8 //# Class AliDielectron #
9 //# Main Class for e+e- analysis #
11 //# by WooJin J. Park, GSI / W.J.Park@gsi.de #
12 //# Ionut C. Arsene, GSI / I.C.Arsene@gsi.de #
13 //# Magnus Mager, CERN / Magnus.Mager@cern.ch #
14 //# Jens Wiechula, Uni HD / Jens.Wiechula@cern.ch #
16 //#####################################################
20 #include <TObjArray.h>
22 #include <AliAnalysisFilter.h>
23 #include <AliKFParticle.h>
25 #include "AliDielectronHistos.h"
31 class AliDielectronCF;
32 class AliDielectronDebugTree;
33 class AliDielectronTrackRotator;
34 class AliDielectronPair;
35 class AliDielectronSignalMC;
36 class AliDielectronMixingHandler;
38 //________________________________________________________________
39 class AliDielectron : public TNamed {
41 friend class AliDielectronMixingHandler; //mixing as friend class
44 enum EPairType { kEv1PP=0, kEv1PM, kEv1MM,
45 kEv1PEv2P, kEv1MEv2P, kEv2PP,
46 kEv1PEv2M, kEv1MEv2M, kEv2PM,
48 enum ELegType { kEv1P, kEv1M, kEv2P, kEv2M };
51 AliDielectron(const char* name, const char* title);
52 virtual ~AliDielectron();
56 void Process(AliVEvent *ev1, AliVEvent *ev2=0);
58 const AliAnalysisFilter& GetEventFilter() const { return fEventFilter; }
59 const AliAnalysisFilter& GetTrackFilter() const { return fTrackFilter; }
60 const AliAnalysisFilter& GetPairFilter() const { return fPairFilter; }
62 AliAnalysisFilter& GetEventFilter() { return fEventFilter; }
63 AliAnalysisFilter& GetTrackFilter() { return fTrackFilter; }
64 AliAnalysisFilter& GetPairFilter() { return fPairFilter; }
65 AliAnalysisFilter& GetPairPreFilter() { return fPairPreFilter; }
66 AliAnalysisFilter& GetPairPreFilterLegs() { return fPairPreFilterLegs; }
67 AliAnalysisFilter& GetEventPlanePreFilter(){ return fEventPlanePreFilter; }
68 AliAnalysisFilter& GetEventPlanePOIPreFilter(){ return fEventPlanePOIPreFilter; }
70 void SetMotherPdg( Int_t pdgMother ) { fPdgMother=pdgMother; }
71 void SetLegPdg(Int_t pdgLeg1, Int_t pdgLeg2) { fPdgLeg1=pdgLeg1; fPdgLeg2=pdgLeg2; }
72 Int_t GetMotherPdg() const { return fPdgMother; }
73 Int_t GetLeg1Pdg() const { return fPdgLeg1; }
74 Int_t GetLeg2Pdg() const { return fPdgLeg2; }
76 void SetNoPairing(Bool_t noPairing=kTRUE) { fNoPairing=noPairing; }
77 void SetUseKF(Bool_t useKF=kTRUE) { fUseKF=useKF; }
78 const TObjArray* GetTrackArray(Int_t i) const {return (i>=0&&i<4)?&fTracks[i]:0;}
79 const TObjArray* GetPairArray(Int_t i) const {return (i>=0&&i<11)?
80 static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i)):0;}
82 TObjArray** GetPairArraysPointer() { return &fPairCandidates; }
84 void SetHistogramManager(AliDielectronHistos * const histos) { fHistos=histos; }
85 AliDielectronHistos* GetHistoManager() const { return fHistos; }
86 const THashList * GetHistogramList() const { return fHistos?fHistos->GetHistogramList():0x0; }
88 Bool_t HasCandidates() const { return GetPairArray(1)?GetPairArray(1)->GetEntriesFast()>0:0; }
89 Bool_t HasCandidatesLikeSign() const {
90 return (GetPairArray(0)&&GetPairArray(2)) ? (GetPairArray(0)->GetEntriesFast()>0 || GetPairArray(2)->GetEntriesFast()>0) : 0;
93 Bool_t HasCandidatesTR() const {return GetPairArray(10)?GetPairArray(10)->GetEntriesFast()>0:0;}
94 void SetCFManagerPair(AliDielectronCF * const cf) { fCfManagerPair=cf; }
95 AliDielectronCF* GetCFManagerPair() const { return fCfManagerPair; }
97 void SetPreFilterEventPlane(Bool_t setValue=kTRUE){fPreFilterEventPlane=setValue;};
98 void SetLikeSignSubEvents(Bool_t setValue=kTRUE){fLikeSignSubEvents=setValue;};
99 void SetPreFilterUnlikeOnly(Bool_t setValue=kTRUE){fPreFilterUnlikeOnly=setValue;};
100 void SetPreFilterAllSigns(Bool_t setValue=kTRUE){fPreFilterAllSigns=setValue;};
102 void SetTrackRotator(AliDielectronTrackRotator * const rot) { fTrackRotator=rot; }
103 AliDielectronTrackRotator* GetTrackRotator() const { return fTrackRotator; }
105 void SetMixingHandler(AliDielectronMixingHandler *mix) { fMixing=mix; }
106 AliDielectronMixingHandler* GetMixingHandler() const { return fMixing; }
108 void SetHasMC(Bool_t hasMC) { fHasMC = hasMC; }
109 Bool_t GetHasMC() const { return fHasMC; }
111 void SetStoreRotatedPairs(Bool_t storeTR) {fStoreRotatedPairs = storeTR;}
112 void SetDontClearArrays(Bool_t dontClearArrays=kTRUE) { fDontClearArrays=dontClearArrays; }
114 void AddSignalMC(AliDielectronSignalMC* signal);
116 void SetDebugTree(AliDielectronDebugTree * const tree) { fDebugTree=tree; }
118 const TObjArray* GetMCSignals() const { return fSignalsMC; }
119 static const char* TrackClassName(Int_t i) { return (i>=0&&i<4)?fgkTrackClassNames[i]:""; }
120 static const char* PairClassName(Int_t i) { return (i>=0&&i<11)?fgkPairClassNames[i]:""; }
122 void SetEstimatorFilename(const Char_t* filename) {fEstimatorFilename = filename;}
123 void SetTRDcorrectionFilename(const Char_t* filename) {fTRDpidCorrectionFilename = filename;}
124 void SetVZEROCalibrationFilename(const Char_t* filename) {fVZEROCalibrationFilename = filename;}
125 void SetVZERORecenteringFilename(const Char_t* filename) {fVZERORecenteringFilename = filename;}
127 void SaveDebugTree();
131 AliAnalysisFilter fEventFilter; // Event cuts
132 AliAnalysisFilter fTrackFilter; // leg cuts
133 AliAnalysisFilter fPairPreFilter; // pair prefilter cuts
134 AliAnalysisFilter fPairPreFilterLegs; // Leg filter after the pair prefilter cuts
135 AliAnalysisFilter fPairFilter; // pair cuts
136 AliAnalysisFilter fEventPlanePreFilter; // event plane prefilter cuts
137 AliAnalysisFilter fEventPlanePOIPreFilter; // PoI cuts in the event plane prefilter
139 Int_t fPdgMother; // pdg code of mother tracks
140 Int_t fPdgLeg1; // pdg code leg1
141 Int_t fPdgLeg2; // pdg code leg2
143 TObjArray* fSignalsMC; // array of AliDielectronSignalMC
145 Bool_t fNoPairing; // if to skip pairing, can be used for track QA only
146 Bool_t fUseKF; // if to skip pairing, can be used for track QA only
148 AliDielectronHistos *fHistos; // Histogram manager
149 // Streaming and merging should be handled
150 // by the analysis framework
152 TObjArray fTracks[4]; //! Selected track candidates
153 // 0: Event1, positive particles
154 // 1: Event1, negative particles
155 // 2: Event2, positive particles
156 // 3: Event2, negative particles
158 TObjArray *fPairCandidates; //! Pair candidate arrays
159 //TODO: better way to store it? TClonesArray?
161 AliDielectronCF *fCfManagerPair;//Correction Framework Manager for the Pair
162 AliDielectronTrackRotator *fTrackRotator; //Track rotator
163 AliDielectronDebugTree *fDebugTree; // Debug tree output
164 AliDielectronMixingHandler *fMixing; // handler for event mixing
166 Bool_t fPreFilterEventPlane; //Filter for the Eventplane determination in TPC
167 Bool_t fLikeSignSubEvents; //Option for dividing into subevents, sub1 ++ sub2 --
168 Bool_t fPreFilterUnlikeOnly; //Apply PreFilter either in +- or to ++/--/+- individually
169 Bool_t fPreFilterAllSigns; //Apply PreFilter find in ++/--/+- and remove from all
170 Bool_t fHasMC; //If we run with MC, at the moment only needed in AOD
171 Bool_t fStoreRotatedPairs; //It the rotated pairs should be stored in the pair array
172 Bool_t fDontClearArrays; //Don't clear the arrays at the end of the Process function, needed for external use of pair and tracks
174 void FillTrackArrays(AliVEvent * const ev, Int_t eventNr=0);
175 void EventPlanePreFilter(Int_t arr1, Int_t arr2, TObjArray arrTracks1, TObjArray arrTracks2, const AliVEvent *ev, AliEventplane *cevplane);
176 void PairPreFilter(Int_t arr1, Int_t arr2, TObjArray &arrTracks1, TObjArray &arrTracks2);
177 void FillPairArrays(Int_t arr1, Int_t arr2);
178 void FillPairArrayTR();
180 Int_t GetPairIndex(Int_t arr1, Int_t arr2) const {return arr1>=arr2?arr1*(arr1+1)/2+arr2:arr2*(arr2+1)/2+arr1;}
182 void InitPairCandidateArrays();
185 TObjArray* PairArray(Int_t i);
187 static const char* fgkTrackClassNames[4]; //Names for track arrays
188 static const char* fgkPairClassNames[11]; //Names for pair arrays
190 TString fEstimatorFilename; // name for the pp multiplicity estimators filename
191 TString fTRDpidCorrectionFilename; // name for the file containing the single particle TRD pid corrections
192 TString fVZEROCalibrationFilename; // file containing VZERO channel-by-channel calibration
193 TString fVZERORecenteringFilename; // file containing VZERO Q-vector recentering averages
195 void ProcessMC(AliVEvent *ev1);
197 void FillHistograms(const AliVEvent *ev, Bool_t pairInfoOnly=kFALSE);
198 void FillHistogramsMC(const AliMCEvent *ev, AliVEvent *ev1);
199 void FillHistogramsPair(AliDielectronPair *pair,Bool_t fromPreFilter=kFALSE);
200 void FillHistogramsTracks(TObjArray **tracks);
202 void FillDebugTree();
204 AliDielectron(const AliDielectron &c);
205 AliDielectron &operator=(const AliDielectron &c);
207 ClassDef(AliDielectron,5);
210 inline void AliDielectron::InitPairCandidateArrays()
213 // initialise all pair candidate arrays
215 fPairCandidates->SetOwner();
216 for (Int_t i=0;i<11;++i){
217 TObjArray *arr=new TObjArray;
218 fPairCandidates->AddAt(arr,i);
223 inline TObjArray* AliDielectron::PairArray(Int_t i)
226 // for internal use only: unchecked return of track array for fast access
228 return static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i));
231 inline void AliDielectron::ClearArrays()
236 for (Int_t i=0;i<4;++i){
239 for (Int_t i=0;i<11;++i){
240 if (PairArray(i)) PairArray(i)->Delete();