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[u/mrichter/AliRoot.git] / ANALYSIS / AliEPSelectionTask.h
1 #ifndef ALIEPSELECTIONTASK_H
2 #define ALIEPSELECTIONTASK_H
3
4 /* Copyright(c) 1998-2008, ALICE Experiment at CERN, All rights reserved. *
5  * See cxx source for full Copyright notice                               */
6
7 //*****************************************************
8 //   Class AliEPSelectionTask
9 //   author: Alberica Toia, Johanna Gramling
10 //*****************************************************
11
12 #include "AliAnalysisTaskSE.h"
13
14 class TFile;
15 class TH1F;
16 class TH2F;
17 class TList;
18 class TString;
19 class TVector2;
20 class TObjArray;
21
22 class AliESDEvent;
23 class AliESDtrackCuts;
24 class AliESDtrack;
25 class AliEventplane;
26
27 class AliEPSelectionTask : public AliAnalysisTaskSE {
28
29  public:
30
31   AliEPSelectionTask();
32   AliEPSelectionTask(const char *name);
33   virtual ~AliEPSelectionTask();
34
35   // Implementation of interface methods
36   virtual void UserCreateOutputObjects();
37   virtual void UserExec(Option_t *option);
38   virtual void Terminate(Option_t *option);
39   
40   TVector2 GetQ(AliEventplane* EP, TObjArray* event);
41   void GetQsub(TVector2& Qsub1, TVector2& Qsub2, TObjArray* event);
42   Double_t GetWeight(AliESDtrack* track);
43   Double_t GetPhiWeight(AliESDtrack* track);
44
45   virtual void  SetDebugLevel(Int_t level) {fDebug = level;}
46   void SetInput(const char* input)         {fAnalysisInput = input;}
47   void SetUseMCRP()                        {fUseMCRP = kTRUE;}
48   void SetUsePhiWeight()                   {fUsePhiWeight = kTRUE;}
49   void SetUsePtWeight()                    {fUsePtWeight = kTRUE;}
50   void SetSaveTrackContribution()          {fSaveTrackContribution = kTRUE;}
51   void SetESDtrackCuts(TString status);
52   void SetPhiDistribution(char* filename, char* listname);
53   
54  private:
55    
56   AliEPSelectionTask(const AliEPSelectionTask& ep);
57   AliEPSelectionTask& operator= (const AliEPSelectionTask& ep); 
58
59   Int_t    fDebug;                      // Debug flag
60   TString  fAnalysisInput;              // "ESD", "AOD"
61   TString  fStatus;                     // "GLOBAL", "TPC"
62   Bool_t   fUseMCRP;                    // i.e. usable for Therminator, when MC RP is provided
63   Bool_t   fUsePhiWeight;               // use of phi weights
64   Bool_t   fUsePtWeight;                // use of pT weights
65   Bool_t   fSaveTrackContribution;      // storage of contribution of each track to Q-Vector
66   
67   AliESDtrackCuts* fESDtrackCuts;
68   
69   TObjArray* ftracklist;                // list of accepted tracks for Q-Vector
70   TH1F*  fPhiDist;                      // Phi distribution used to calculate phi weights
71
72   TVector2* fQVector;                   // Q-Vector of the event  
73   Double_t* fQContributionX;            // array of the tracks' contributions to X component of Q-Vector - index = track ID
74   Double_t* fQContributionY;            // array of the tracks' contributions to Y component of Q-Vector - index = track ID
75   Double_t  fEventplaneQ;               // Event plane angle from Q-Vector
76   TVector2* fQsub1;                     // Q-Vector of sub-event 1
77   TVector2* fQsub2;                     // Q-Vector of sub-event 2
78   Double_t  fQsubRes;                   // Difference of EP angles of subevents
79   
80   TList* fOutputList;  
81   TH1F*  fHOutEventplaneQ;              // control histogram: Event Plane angle
82   TH1F*  fHOutPhi;                      // control histogram: original phi distribution
83   TH1F*  fHOutPhiCorr;                  // control histogram: corrected phi distribution
84   TH2F*  fHOutsub1sub2;                 // control histogram: correlation of EP from subevents
85   TH2F*  fHOutNTEPRes;                  // control histogram: Difference of EP angles of subevents vs Nch
86   TH2F*  fHOutPTPsi;                    // control histogram: Difference of EP angle and emission angle of track vs track pT
87   TH2F*  fHOutDiff;                     // control histogram: Difference of MC RP and EP - only filled if fUseMCRP is true!
88   TH2F*  fHOutleadPTPsi;                // control histogram: emission angle of leading pT track vs EP angle
89
90   ClassDef(AliEPSelectionTask,2); 
91 };
92
93 #endif
94