1 #ifndef ALIFORWARDMULTIPLICITYDISTRIBUTION_H
2 #define ALIFORWARDMULTIPLICITYDISTRIBUTION_H
4 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
7 #include "AliAnalysisTaskSE.h"
8 #include "AliBasedNdetaTask.h"
15 * Task to do the multiplicity distibution
18 class AliForwardMultiplicityDistribution : public AliBasedNdetaTask
24 AliForwardMultiplicityDistribution();
28 AliForwardMultiplicityDistribution(const char* name);
32 AliForwardMultiplicityDistribution(const AliForwardMultiplicityDistribution& o) : AliBasedNdetaTask(o), fTrigger(o.fTrigger),fBins(), fOutput(o.fOutput), fLowCent(o.fLowCent), fHighCent(o.fHighCent),fNBins(o.fNBins), fCent(o.fCent){ }
36 AliForwardMultiplicityDistribution& operator=(const AliForwardMultiplicityDistribution&){return *this;}
40 virtual ~AliForwardMultiplicityDistribution(){}
42 * Embedded Class begins here
44 struct Bin : public TNamed
53 Bin(Double_t etaLow, Double_t etaHigh);
61 Bin&operator=(const Bin&){return*this;}
67 * Define outputs of a single eta bin
69 virtual void CreateOutputObjectss(TList* cont, Int_t max);
71 * Process a single eta bin
73 virtual void Process(TH1D* dndetaForward, TH1D* dndetaCentral, TH1D* normForward, TH1D* normCentral, Double_t VtxZ);
74 Double_t fEtaLow; // low eta limit
75 Double_t fEtaHigh; // high eta limit
76 TH1D* fHist; // multiplicity distribution hist
77 TH1D* fHistPlus05; // multiplicity distribution hist scaled up with 5%
78 TH1D* fHistPlus075; // multiplicity distribution hist scaled up with 7.5%
79 TH1D* fHistPlus10; // multiplicity distribution hist scaled up with 10%
80 TH1D* fHistMinus05; // multiplicity distribution hist scaled down with 5%
81 TH1D* fHistMinus075; // multiplicity distribution hist scaled down with 7.5%
82 TH1D* fHistMinus10; // multiplicity distribution hist scaled down with 10%
83 TH1D* fHistPlusSys; // multiplicity distribution hist scaled up with the event uncertainty
84 TH1D* fHistMinusSys; // multiplicity distribution hist scaled down with the event uncertainty
85 TH2D* fAcceptance; // histogram showing the 'holes' in acceptance.
86 // BinContent of 1 shows a hole, and BinContent of 10 shows data coverage
87 TH2D* fVtxZvsNdataBins; // VtxZ vs. number of data acceptance bins (normalised to the eta range)
89 ClassDef(Bin,2); // Manager of data
92 * Create Output Objects
94 virtual void UserCreateOutputObjects();
98 void UserExec(Option_t *option);
102 void Terminate(Option_t *option);
106 void SetCentrality(Int_t lowCent, Int_t highCent){fLowCent= lowCent; fHighCent= highCent;}
108 * Set fNBins, multiplicity histos run from 0 to fNBins
110 void SetNBins(Int_t n){fNBins= n;}
112 * implementation of pure virtual function, always returning 0
114 virtual TH2D* GetHistogram(const AliAODEvent* aod, Bool_t mc);
116 * Get single event forward and central dNĀ²/dEta dPhi histograms
118 virtual void GetHistograms(const AliAODEvent* aod, TH2D& forward, TH2D& central , Bool_t mc=false);
120 * Add another eta bin to the task
122 void AddBin(Double_t etaLow, Double_t etaHigh){fBins.Add(new Bin(etaLow, etaHigh)); }
124 * Form name of eta bin
126 static const Char_t* FormBinName(Double_t etaLow, Double_t etaHigh);
128 TH1I* fTrigger; // trigger histogram
129 TList fBins; // eta bin list
130 TList* fOutput; // output list
131 Int_t fLowCent; // lower centrality limit
132 Int_t fHighCent; // upper centrality limit
133 Int_t fNBins; // multiplicity axis' runs from 0 to fNbins
134 TH1D* fCent; // centrality
135 ClassDef(AliForwardMultiplicityDistribution, 2);