3 #ifndef ALIMULTIPLICITYCORRECTION_H
4 #define ALIMULTIPLICITYCORRECTION_H
9 // class that contains the correction matrix and the functions for
10 // correction the multiplicity spectrum
11 // implements a several unfolding methods: e.g. chi2 minimization and bayesian unfolding
22 // defined here, because it does not seem possible to predeclare these (or i do not know how)
24 // $ROOTSYS/include/TVectorDfwd.h:21: conflicting types for `typedef struct TVectorT<Double_t> TVectorD'
25 // PWG0/dNdEta/AliMultiplicityCorrection.h:21: previous declaration as `struct TVectorD'
29 #include <AliPWG0Helper.h>
30 #include <AliUnfolding.h>
32 class AliMultiplicityCorrection : public TNamed {
34 enum EventType { kTrVtx = 0, kMB, kINEL, kNSD };
35 enum { kESDHists = 4, kMCHists = 5, kCorrHists = 8, kQualityRegions = 3 };
37 AliMultiplicityCorrection();
38 AliMultiplicityCorrection(const Char_t* name, const Char_t* title);
39 virtual ~AliMultiplicityCorrection();
41 static AliMultiplicityCorrection* Open(const char* fileName, const char* folderName = "Multiplicity");
43 virtual Long64_t Merge(TCollection* list);
45 void FillMeasured(Float_t vtx, Int_t measured05, Int_t measured10, Int_t measured15, Int_t measured20);
46 void FillGenerated(Float_t vtx, Bool_t triggered, Bool_t vertex, AliPWG0Helper::MCProcessType processType, Int_t generated05, Int_t generated10, Int_t generated15, Int_t generated20, Int_t generatedAll);
48 void FillCorrection(Float_t vtx, Int_t generated05, Int_t generated10, Int_t generated15, Int_t generated20, Int_t generatedAll, Int_t measured05, Int_t measured10, Int_t measured15, Int_t measured20);
50 Bool_t LoadHistograms(const Char_t* dir = 0);
51 void SaveHistograms(const char* dir = 0);
52 void DrawHistograms();
53 void DrawComparison(const char* name, Int_t inputRange, Bool_t fullPhaseSpace, Bool_t normalizeESD, TH1* mcHist, Bool_t simple = kFALSE);
55 Int_t ApplyMinuitFit(Int_t inputRange, Bool_t fullPhaseSpace, EventType eventType, Bool_t check = kFALSE, TH1* initialConditions = 0);
57 void ApplyBayesianMethod(Int_t inputRange, Bool_t fullPhaseSpace, EventType eventType, Float_t regPar = 1, Int_t nIterations = 100, TH1* initialConditions = 0, Bool_t determineError = kTRUE);
59 static TH1* CalculateStdDev(TH1** results, Int_t max);
60 TH1* StatisticalUncertainty(AliUnfolding::MethodType methodType, Int_t inputRange, Bool_t fullPhaseSpace, EventType eventType, Bool_t randomizeMeasured, Bool_t randomizeResponse, TH1* compareTo = 0);
62 Int_t ApplyNBDFit(Int_t inputRange, Bool_t fullPhaseSpace, EventType eventType);
63 void ApplyGaussianMethod(Int_t inputRange, Bool_t fullPhaseSpace);
65 void ApplyLaszloMethod(Int_t inputRange, Bool_t fullPhaseSpace, EventType eventType);
67 TH2F* GetMultiplicityESD(Int_t i) { return fMultiplicityESD[i]; }
68 TH2F* GetMultiplicityVtx(Int_t i) { return fMultiplicityVtx[i]; }
69 TH2F* GetMultiplicityMB(Int_t i) { return fMultiplicityMB[i]; }
70 TH2F* GetMultiplicityINEL(Int_t i) { return fMultiplicityINEL[i]; }
71 TH2F* GetMultiplicityNSD(Int_t i) { return fMultiplicityNSD[i]; }
72 TH2F* GetMultiplicityMC(Int_t i, EventType eventType);
73 TH3F* GetCorrelation(Int_t i) { return fCorrelation[i]; }
74 TH1F* GetMultiplicityESDCorrected(Int_t i) { return fMultiplicityESDCorrected[i]; }
76 void SetMultiplicityESD(Int_t i, TH2F* hist) { fMultiplicityESD[i] = hist; }
77 void SetMultiplicityVtx(Int_t i, TH2F* hist) { fMultiplicityVtx[i] = hist; }
78 void SetMultiplicityMB(Int_t i, TH2F* hist) { fMultiplicityMB[i] = hist; }
79 void SetMultiplicityINEL(Int_t i, TH2F* hist) { fMultiplicityINEL[i] = hist; }
80 void SetMultiplicityNSD(Int_t i, TH2F* hist) { fMultiplicityNSD[i] = hist; }
81 void SetMultiplicityMC(Int_t i, EventType eventType, TH2F* hist);
82 void SetCorrelation(Int_t i, TH3F* hist) { fCorrelation[i] = hist; }
83 void SetMultiplicityESDCorrected(Int_t i, TH1F* hist) { fMultiplicityESDCorrected[i] = hist; }
85 void SetGenMeasFromFunc(TF1* inputMC, Int_t id);
86 TH2F* CalculateMultiplicityESD(TH1* inputMC, Int_t correlationMap);
88 void GetComparisonResults(Float_t* mc = 0, Int_t* mcLimit = 0, Float_t* residuals = 0, Float_t* ratioAverage = 0) const;
90 TH1* GetEfficiency(Int_t inputRange, EventType eventType);
91 TH1* GetTriggerEfficiency(Int_t inputRange);
93 static void SetQualityRegions(Bool_t SPDStudy);
94 Float_t GetQuality(Int_t region) const { return fQuality[region]; }
96 void FFT(Int_t dir, Int_t m, Double_t *x, Double_t *y);
99 void SetupCurrentHists(Int_t inputRange, Bool_t fullPhaseSpace, EventType eventType);
101 Float_t BayesCovarianceDerivate(Float_t matrixM[251][251], TH2* hResponse, Int_t k, Int_t i, Int_t r, Int_t u);
103 TH1* fCurrentESD; //! current input esd
104 TH2* fCurrentCorrelation; //! current correlation
105 TH1* fCurrentEfficiency; //! current efficiency
107 TH2F* fMultiplicityESD[kESDHists]; // multiplicity histogram: vtx vs multiplicity; array: |eta| < 0.5, 1.0, 1.5, 2 (0..3)
109 TH2F* fMultiplicityVtx[kMCHists]; // multiplicity histogram of events that have a reconstructed vertex : vtx vs multiplicity; array: |eta| < 0.5, 1.0, 1.5, 2, inf (0..4)
110 TH2F* fMultiplicityMB[kMCHists]; // multiplicity histogram of triggered events : vtx vs multiplicity; array: |eta| < 0.5, 1.0, 1.5, 2, inf (0..4)
111 TH2F* fMultiplicityINEL[kMCHists]; // multiplicity histogram of all (inelastic) events : vtx vs multiplicity; array: |eta| < 0.5, 1.0, 1.5, 2, inf (0..4)
112 TH2F* fMultiplicityNSD[kMCHists]; // multiplicity histogram of NSD events : vtx vs multiplicity; array: |eta| < 0.5, 1.0, 1.5, 2, inf (0..4)
114 TH3F* fCorrelation[kCorrHists]; // vtx vs. (gene multiplicity (trig+vtx)) vs. (meas multiplicity); array: |eta| < 0.5, 1, 1.5, 2 (0..3 and 4..7), the first corrects to the eta range itself, the second to full phase space
116 TH1F* fMultiplicityESDCorrected[kCorrHists]; // corrected histograms
118 Int_t fLastBinLimit; //! last bin limit, determined in SetupCurrentHists()
119 Float_t fLastChi2MC; //! last Chi2 between MC and unfolded ESD (calculated in DrawComparison)
120 Int_t fLastChi2MCLimit; //! bin where the last chi2 breached a certain threshold, used to evaluate the multiplicity reach (calc. in DrawComparison)
121 Float_t fLastChi2Residuals; //! last Chi2 of the ESD and the folded unfolded ESD (calculated in DrawComparison)
122 Float_t fRatioAverage; //! last average of |ratio-1| where ratio = unfolded / mc (bin 2..150)
124 static Int_t fgQualityRegionsB[kQualityRegions]; //! begin, given in multiplicity units
125 static Int_t fgQualityRegionsE[kQualityRegions]; //! end
126 Float_t fQuality[kQualityRegions]; //! stores the quality of the last comparison (calculated in DrawComparison). Contains 3 values that are averages of (MC - unfolded) / e(MC) in 3 regions, these are defined in fQualityRegionB,E
129 AliMultiplicityCorrection(const AliMultiplicityCorrection&);
130 AliMultiplicityCorrection& operator=(const AliMultiplicityCorrection&);
132 ClassDef(AliMultiplicityCorrection, 4);