1 #ifndef ALIANALYSISTASKCHARGEDHADRONSPECTRA_H
2 #define ALIANALYSISTASKCHARGEDHADRONSPECTRA_H
4 //////////////////////////////////////////////////////////////////////////////
6 // This analysis extracts pT-spectra of charged kaons, protons, and pions. //
7 // It is based on particles identifation via the dE/dx signal of the TPC. //
9 //////////////////////////////////////////////////////////////////////////////
19 class AliESDtrackCuts;
24 #include "AliAnalysisTaskSE.h"
26 class AliAnalysisTaskChargedHadronSpectra : public AliAnalysisTaskSE {
28 AliAnalysisTaskChargedHadronSpectra(const char *name);
29 AliAnalysisTaskChargedHadronSpectra();
30 virtual ~AliAnalysisTaskChargedHadronSpectra() {}
32 virtual void UserCreateOutputObjects();
33 virtual void UserExec(Option_t *option);
34 virtual void Terminate(Option_t *);
36 void SetESDtrackCuts(AliESDtrackCuts * trackCuts){fESDtrackCuts = trackCuts;};
37 void SetAlephParameters(const Double_t * parameters){for(Int_t j=0;j<5;j++) fAlephParameters[j] = parameters[j];};
38 void SetIsMCtrue(Bool_t isMCdata = kTRUE){fMCtrue = isMCdata;};
40 static TH1D * AnalyseClassicProton(const TH3F * input, Int_t EtaBin, const Double_t * AlephParams);
41 static TH1D * AnalyseClassicPion(const TH3F * input, Int_t EtaBin, const Double_t * AlephParams);
42 static TH1D * AnalyseClassicKaon(const TH3F * input, Int_t EtaBin, const Double_t * AlephParams);
44 static void Postprocess(const TList * ListOfHistogramsMC,const TList * ListOfHistogramsData, const Char_t *filename);
48 void BinLogX(const TH1 *h);
49 Int_t GetPythiaEventProcessType(const AliHeader* aHeader, const Bool_t adebug = kFALSE) const;
51 AliESDEvent *fESD; //! ESD object
52 TList *fListHist; //! list for histograms
54 AliESDtrackCuts * fESDtrackCuts; // basic cut variables
55 AliESDpid * fESDpid; // basic TPC object for n-sigma cuts
56 Bool_t fMCtrue; // flag if real data or MC is processed
57 Double_t fAlephParameters[5]; // Aleph Parameters for Bethe-Bloch
61 TH3F *fHistPtMCKaon; //! (mult,eta,pT) for Kaons MC truth; neg. x-axis for neg. particles, pos. x-axis for pos. particles
62 TH3F *fHistPtMCProton; //! (mult,eta,pT) for Protons MC truth; neg. x-axis for neg. particles, pos. x-axis for pos. particles
63 TH3F *fHistPtMCPion; //! (mult,eta,pT) for Pions MC truth; neg. x-axis for neg. particles, pos. x-axis for pos. particles
64 TH3F *fHistPtMCElectron; //! (mult,eta,pT) for Electrons MC truth; neg. x-axis for neg. particles, pos. x-axis for pos. particles
65 TH3F *fHistPtMCMuon; //! (mult,eta,pT) for Muons MC truth; neg. x-axis for neg. particles, pos. x-axis for pos. particles
67 // reconstructed particle histograms
68 TH3F *fHistPtEtaKaon; //! (mult,eta,pT) for Kaons; neg. x-axis for neg. particles, pos. x-axis for pos. particles
69 TH3F *fHistPtEtaKaonNoKink; //! (mult,eta,pT) for Kaons withou accepting the Kink mother; neg. x-axis for neg. particles, pos. x-axis for pos. particles
70 TH3F *fHistPtEtaProton; //! (mult,eta,pT) for Protons; neg. x-axis for neg. particles, pos. x-axis for pos. particles
71 TH3F *fHistPtEtaProtonDCA; //! (DCA,eta,pT) for Protons; neg. x-axis for neg. particles, pos. x-axis for pos. particles; special histogram for protons
72 TH3F *fHistPtEtaPion; //! (mult,eta,pT) for Pions; neg. x-axis for neg. particles, pos. x-axis for pos. particles
73 TH3F *fHistPtEtaElectron; //! (mult,eta,pT) for Electrons; neg. x-axis for neg. particles, pos. x-axis for pos. particles
75 TH3F *fHistClassicKaon; //! (Pt,eta,delta dEdx) for Kaons for different eta; neg. x-axis for neg. particles, pos. x-axis for pos. particles
76 TH3F *fHistClassicProton; //! (Pt,eta,delta dEdx) for Protons for different eta; neg. x-axis for neg. particles, pos. x-axis for pos. particles
77 TH3F *fHistClassicPion; //! (Pt,eta,delta dEdx) for Pions for different eta; neg. x-axis for neg. particles, pos. x-axis for pos. particles
78 TH3F *fHistClassicElectron; //! (Pt,eta,delta dEdx) for Electrons for different eta; neg. x-axis for neg. particles, pos. x-axis for pos. particles
80 // histograms of general interest
81 TH2F *fDeDx; //! dEdx spectrum
82 TH1F *fHistTrackPerEvent; //! tracks per event for multiplicity studies
83 TH2F *fHistTrackPerEventMC; //! (code, TrackPerEvent) MC tracks per event, codes represent different event types (non-diffractive,..)
84 TH2F *fSecProtons; //! control histogram for secondary interactions
85 TH1F *fVertexZ; //! control histogram for the z-position of the vertex
87 TH2F *fHistEtaNcls; //! 2d histogram (eta, nTPCclusters) which will define our acceptance
88 TH2F *fHistEtaPhi; //! 2d histogram (eta, phi) which will show dead regions
90 // histograms for efficiency studies
91 TH3F *fHistEffProton; //! (code,eta,pT) special hist. for eff. studies; code 0: true primary p, 1: true sec. p, 2: misidentified, 3: weak decay sec.
92 TH3F *fHistEffProtonDCA; //! (code,dca,pT) special hist. for eff. studies; code 0: true primary p, 1: true sec. p, 2: misidentified, 3: weak decay sec.
93 TH3F *fHistEffPion; //! (code,eta,pT) special hist. for eff. studies; code 0: true primary pi, 1: true sec. pi, 2: misidentified, 3: weak decay sec., 4: muons
94 TH3F *fHistEffKaon; //! (code,eta,pT) special hist. for eff. studies; code 0: true primary K, 1: true sec. K, 2: misidentified, 3: weak decay sec.
96 // two more histograms for the electron background in the dN/dpT paper
97 TH1F *fHighPtElectrons; //! histogram for the electrons at high pT for background estimation in Jacek's paper
98 TH1F *fHighPtHadrons; //! histogram for the hardrons at high pT for background estimation in Jacek's paper
101 AliAnalysisTaskChargedHadronSpectra(const AliAnalysisTaskChargedHadronSpectra&);
102 AliAnalysisTaskChargedHadronSpectra& operator=(const AliAnalysisTaskChargedHadronSpectra&);
104 ClassDef(AliAnalysisTaskChargedHadronSpectra, 2);