PWGJE/EMCALJetTasks/AliAnalysisTaskLocalRho.h

   1 #ifndef ALIANALYSISTASKLOCALRHO_H
   2 #define ALIANALYSISTASKLOCALRHO_H
   3
   4 // $Id$
   5
   6 #include <AliAnalysisTaskEmcalJetDev.h>
   7 #include <AliEmcalJet.h>
   8 #include <AliVEvent.h>
   9 #include <AliVTrack.h>
  10 #include <AliVCluster.h>
  11 #include <TClonesArray.h>
  12 #include <TMath.h>
  13 #include <TRandom3.h>
  14 #include <AliLog.h>
  15 #include <AliJetContainer.h>
  16
  17 class TF1;
  18 class THF1;
  19 class THF2;
  20 class TProfile;
  21 class AliLocalRhoParameter;
  22
  23 class AliAnalysisTaskLocalRho : public AliAnalysisTaskEmcalJetDev {
  24     public:
  25          // enumerators
  26         enum fitModulationType  { kNoFit, kV2, kV3, kCombined, kFourierSeries, kIntegratedFlow, kQC2, kQC4 }; // fit type
  27         enum detectorType       { kTPC, kVZEROA, kVZEROC, kVZEROComb};  // detector that was used
  28         enum qcRecovery         { kFixedRho, kNegativeVn, kTryFit };    // how to deal with negative cn value for qcn value
  29         enum runModeType        { kLocal, kGrid };                      // run mode type
  30         // constructors, destructor
  31                                 AliAnalysisTaskLocalRho();
  32                                 AliAnalysisTaskLocalRho(const char *name, runModeType type);
  33         virtual                 ~AliAnalysisTaskLocalRho();
  34         // setting up the task and technical aspects
  35         void                    ExecOnce();
  36         Bool_t                  InitializeAnalysis();
  37         virtual void            UserCreateOutputObjects();
  38         TH1F*                   BookTH1F(const char* name, const char* x, Int_t bins, Double_t min, Double_t max, Int_t c = -1, Bool_t append = kTRUE);
  39         TH2F*                   BookTH2F(const char* name, const char* x, const char* y, Int_t binsx, Double_t minx, Double_t maxx, Int_t binsy, Double_t miny, Double_t maxy, Int_t c = -1, Bool_t append = kTRUE);
  40         virtual Bool_t          Run();
  41         /* inline */    Double_t PhaseShift(Double_t x) const {
  42             while (x>=TMath::TwoPi())x-=TMath::TwoPi();
  43             while (x<0.)x+=TMath::TwoPi();
  44             return x; }
  45         /* inline */    Double_t PhaseShift(Double_t x, Double_t n) const {
  46             x = PhaseShift(x);
  47             if(TMath::Nint(n)==2) while (x>TMath::Pi()) x-=TMath::Pi();
  48             if(TMath::Nint(n)==3) {
  49                 if(x>2.*TMath::TwoPi()/n) x = TMath::TwoPi() - x;
  50                 if(x>TMath::TwoPi()/n) x = TMath::TwoPi()-(x+TMath::TwoPi()/n);
  51             }
  52             return x; }
  53         /* inline */    Double_t ChiSquarePDF(Int_t ndf, Double_t x) const {
  54             Double_t n(ndf/2.), denom(TMath::Power(2, n)*TMath::Gamma(n));
  55             if (denom!=0)  return ((1./denom)*TMath::Power(x, n-1)*TMath::Exp(-x/2.));
  56             return -999; }
  57         // the cdf of the chisquare distribution is the normalized lower incomplete gamma function
  58         /* inline */    Double_t ChiSquareCDF(Int_t ndf, Double_t x) const { return TMath::Gamma(ndf/2., x/2.); }
  59         // setters - setup how to run
  60         void                    SetDebugMode(Int_t d)                           {fDebug = d;}
  61         void                    SetCentralityClasses(TArrayI* c)                {fCentralityClasses = c;}
  62         void                    SetAttachToEvent(Bool_t a)                      {fAttachToEvent = a;}
  63         void                    SetUseScaledRho(Bool_t s)                       {fUseScaledRho = s;}
  64         void                    SetFillHistograms(Bool_t b)                     {fFillHistograms = b;}
  65         // setters - analysis details
  66         void                    SetNoEventWeightsForQC(Bool_t e)                {fNoEventWeightsForQC = e;}
  67         void                    SetIntegratedFlow(TH1F* i, TH1F* j)             {fUserSuppliedV2 = i;
  68                                                                                  fUserSuppliedV3 = j; }
  69         void                    SetOnTheFlyResCorrection(TH1F* r2, TH1F* r3)    {fUserSuppliedR2 = r2;
  70                                                                                  fUserSuppliedR3 = r3; }
  71         void                    SetModulationFit(TF1* fit);
  72         void                    SetModulationFitMinMaxP(Float_t m, Float_t n)   {fMinPvalue = m; fMaxPvalue = n; }
  73         void                    SetModulationFitType(fitModulationType type)    {fFitModulationType = type; }
  74         void                    SetQCnRecoveryType(qcRecovery type)             {fQCRecovery = type; }
  75         void                    SetModulationFitOptions(TString opt)            {fFitModulationOptions = opt; }
  76         void                    SetReferenceDetector(detectorType type)         {fDetectorType = type; }
  77         void                    SetUsePtWeight(Bool_t w)                        {fUsePtWeight = w; }
  78         void                    SetRunModeType(runModeType type)                {fRunModeType = type; }
  79         void                    SetForceAbsVnHarmonics(Bool_t f)                {fAbsVnHarmonics = f; }
  80         void                    SetExcludeLeadingJetsFromFit(Float_t n)         {fExcludeLeadingJetsFromFit = n; }
  81         void                    SetRebinSwapHistoOnTheFly(Bool_t r)             {fRebinSwapHistoOnTheFly = r; }
  82         void                    SetSaveThisPercentageOfFits(Float_t p)          {fPercentageOfFits = p; }
  83         void                    SetUseV0EventPlaneFromHeader(Bool_t h)          {fUseV0EventPlaneFromHeader = h;}
  84         void                    SetSoftTrackMinMaxPt(Float_t min, Float_t max)  {fSoftTrackMinPt = min; fSoftTrackMaxPt = max;}
  85         // getters
  86         TString                 GetLocalRhoName() const                         {return fLocalRhoName; }
  87         // numerical evaluations
  88         void                    CalculateEventPlaneVZERO(Double_t vzero[2][2]) const;
  89         void                    CalculateEventPlaneTPC(Double_t* tpc);
  90         void                    CalculateEventPlaneCombinedVZERO(Double_t* comb) const;
  91         Double_t                CalculateQC2(Int_t harm);
  92         Double_t                CalculateQC4(Int_t harm);
  93         // helper calculations for the q-cumulant analysis, also used by AliAnalyisTaskJetFlow
  94         void                    QCnQnk(Int_t n, Int_t k, Double_t &reQ, Double_t &imQ);
  95         Double_t                QCnS(Int_t i, Int_t j);
  96         Double_t                QCnM();
  97         Double_t                QCnM11();
  98         Double_t                QCnM1111();
  99         Bool_t                  QCnRecovery(Double_t psi2, Double_t psi3);
 100         // analysis details
 101         Bool_t                  CorrectRho(Double_t psi2, Double_t psi3);
 102         void                    FillEventPlaneHistograms(Double_t psi2, Double_t psi3) const;
 103         void                    FillAnalysisSummaryHistogram() const;
 104         // track selection
 105         /* inline */    Bool_t PassesCuts(AliVTrack* track) const { return AcceptTrack(track, 0);}
 106         /* inline */    Bool_t PassesCuts(AliEmcalJet* jet) { return AcceptJet(jet, 0);}
 107         virtual void            Terminate(Option_t* option);
 108
 109     private:
 110         Int_t                   fDebug;                 // debug level (0 none, 1 fcn calls, 2 verbose)
 111         Bool_t                  fInitialized;           //! is the analysis initialized?
 112         Bool_t                  fAttachToEvent;         // attach local rho to the event
 113         Bool_t                  fFillHistograms;        // fill qa histograms
 114         Bool_t                  fNoEventWeightsForQC;   // don't store event weights for qc analysis
 115         Bool_t                  fUseScaledRho;          // use scaled rho
 116         TArrayI*                fCentralityClasses;     // centrality classes (maximum 10) used for QA
 117         TH1F*                   fUserSuppliedV2;        // histo with integrated v2
 118         TH1F*                   fUserSuppliedV3;        // histo with integrated v3
 119         TH1F*                   fUserSuppliedR2;        // correct the extracted v2 with this r
 120         TH1F*                   fUserSuppliedR3;        // correct the extracted v3 with this r
 121         Int_t                   fNAcceptedTracks;       //! number of accepted tracks
 122         Int_t                   fNAcceptedTracksQCn;    //! accepted tracks for QCn
 123         Int_t                   fInCentralitySelection; //! centrality bin, only for QA plots
 124         fitModulationType       fFitModulationType;     // fit modulation type
 125         qcRecovery              fQCRecovery;            // recovery type for e-by-e qc method
 126         Bool_t                  fUsePtWeight;           // use dptdphi instead of dndphi
 127         detectorType            fDetectorType;          // type of detector used for modulation fit
 128         TString                 fFitModulationOptions;  // fit options for modulation fit
 129         runModeType             fRunModeType;           // run mode type
 130         TF1*                    fFitModulation;         // modulation fit for rho
 131         Float_t                 fMinPvalue;             // minimum value of p
 132         Float_t                 fMaxPvalue;             // maximum value of p
 133         // additional jet cuts (most are inherited)
 134         Float_t                 fLocalJetMinEta;        // local eta cut for jets
 135         Float_t                 fLocalJetMaxEta;        // local eta cut for jets
 136         Float_t                 fLocalJetMinPhi;        // local phi cut for jets
 137         Float_t                 fLocalJetMaxPhi;        // local phi cut for jets
 138         Float_t                 fSoftTrackMinPt;        // min pt for soft tracks
 139         Float_t                 fSoftTrackMaxPt;        // max pt for soft tracks
 140         // general qa histograms
 141         TH1F*                   fHistPvalueCDF;         //! cdf value of chisquare p
 142         // general settings
 143         Bool_t                  fAbsVnHarmonics;        // force postive local rho
 144         Float_t                 fExcludeLeadingJetsFromFit;    // exclude n leading jets from fit
 145         Bool_t                  fRebinSwapHistoOnTheFly;       // rebin swap histo on the fly
 146         Float_t                 fPercentageOfFits;      // save this percentage of fits
 147         Bool_t                  fUseV0EventPlaneFromHeader;    // use the vzero event plane from the header
 148         // transient object pointers
 149         TList*                  fOutputList;            //! output list
 150         TList*                  fOutputListGood;        //! output list for local analysis
 151         TList*                  fOutputListBad;         //! output list for local analysis
 152         TH1F*                   fHistSwap;              //! swap histogram
 153         TH1F*                   fHistAnalysisSummary;   //! flags
 154         TProfile*               fProfV2;                //! extracted v2
 155         TProfile*               fProfV2Cumulant;        //! v2 cumulant
 156         TProfile*               fProfV3;                //! extracted v3
 157         TProfile*               fProfV3Cumulant;        //! v3 cumulant
 158         TH1F*                   fHistPsi2[10];          //! psi 2
 159         TH1F*                   fHistPsi3[10];          //! psi 3
 160
 161         AliAnalysisTaskLocalRho(const AliAnalysisTaskLocalRho&);                  // not implemented
 162         AliAnalysisTaskLocalRho& operator=(const AliAnalysisTaskLocalRho&);       // not implemented
 163
 164         ClassDef(AliAnalysisTaskLocalRho, 4);
 165 };
 166
 167 #endif