/************************************************************************** * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * * * * Author: The ALICE Off-line Project. * * Contributors are mentioned in the code where appropriate. * * * * Permission to use, copy, modify and distribute this software and its * * documentation strictly for non-commercial purposes is hereby granted * * without fee, provided that the above copyright notice appears in all * * copies and that both the copyright notice and this permission notice * * appear in the supporting documentation. The authors make no claims * * about the suitability of this software for any purpose. It is * * provided "as is" without express or implied warranty. * **************************************************************************/ // // QA class of Heavy Flavor quark and fragmeted/decayed particles // -Check kinematics of Heavy Quarks/hadrons, and decayed leptons // pT, rapidity // decay lepton kinematics w/wo acceptance // heavy hadron decay length, electron pT fraction carried from decay // -Check yield of Heavy Quarks/hadrons // Number of produced heavy quark // Number of produced hadron of given pdg code // #ifndef ALIHFEMCQA_H #define ALIHFEMCQA_H #ifndef ROOT_TObject //#include #endif class TH1F; class TH2F; class TParticle; class TString; class AliStack; class AliAODMCParticle; //________________________________________________________________ class AliHFEmcQA: public TObject { public: enum heavyType {kCharm=4, kBeauty=5, kElectronPDG=11}; enum qType {kQuark, kantiQuark, kHadron, keHadron, kDeHadron, kElectron, kElectron2nd}; enum SourceType {kDirectCharm=1, kDirectBeauty=2, kBeautyCharm=3, kGamma=4, kPi0=5, kElse=6}; enum ProcessType { kPairCreationFromq, kPairCreationFromg, kFlavourExitation, kGluonSplitting, kInitialPartonShower, kLightQuarkShower }; AliHFEmcQA(); AliHFEmcQA(const AliHFEmcQA &p); // copy constructor AliHFEmcQA &operator=(const AliHFEmcQA &); // assignment operator virtual ~AliHFEmcQA(); void PostAnalyze() const; void CreateHistograms(const Int_t kquark, Int_t icut, TString hnopt=""); // create histograms for mc qa analysis void SetStack(AliStack* const stack){fStack=stack;} // set stack pointer void SetMCArray(TClonesArray* const mcarry){fMCArray=mcarry;} // set mcarray pointer void Init(); void GetQuarkKine(TParticle *part, Int_t iTrack, const Int_t kquark); // get heavy quark kinematics distribution void GetHadronKine(TParticle *part, const Int_t kquark); // get heavy hadron kinematics distribution void GetDecayedKine(TParticle *part, const Int_t kquark, const Int_t kdecayed, Int_t icut); // get decay electron kinematics distribution void GetDecayedKine(AliAODMCParticle *mcpart, const Int_t kquark, Int_t kdecayed, Int_t icut); // get decay electron kinematics for AOD void EndOfEventAna(const Int_t kquark); // run analysis which should be done at the end of the event loop Int_t GetElectronSource(TParticle* mcpart); // return electron source id Int_t GetElectronSource(AliAODMCParticle *mcpart); // return electron source id for AOD protected: void IdentifyMother(Int_t motherlabel, Int_t &motherpdg, Int_t &grandmotherlabel); // void HardScattering(const Int_t kquark, Int_t &motherID, Int_t &mothertype, Int_t &motherlabel); // check if the quark is produced from hard scattering void ReportStrangeness(Int_t &motherID, Int_t &mothertype, Int_t &motherlabel); // report if the quark production process is unknown Bool_t IsFromInitialShower(Int_t inputmotherlabel, Int_t &motherID, Int_t &mothertype, Int_t &motherlabel); // check if the quark is produced from initial parton shower Bool_t IsFromFinalParton(Int_t inputmotherlabel, Int_t &motherID, Int_t &mothertype, Int_t &motherlabel); // check if the quark is produced from final parton shower Float_t GetRapidity(TParticle *part) const; // return rapidity Float_t GetRapidity(AliAODMCParticle *part) const; // return rapidity AliStack* fStack; // stack pointer TClonesArray *fMCArray; // mc array pointer static const Int_t fgkGluon; // gluon pdg code static const Int_t fgkMaxGener; // ancester level wanted to be checked static const Int_t fgkMaxIter; // number of iteration to find out matching particle static const Int_t fgkqType; // number of particle type to be checked struct AliHists{ TH1F *fPdgCode; // histogram to store particle pdg code TH1F *fPt; // histogram to store pt TH1F *fY; // histogram to store rapidity TH1F *fEta; // histogram to store eta AliHists() : fPdgCode() , fPt() , fY() , fEta() { // default constructor }; AliHists(const AliHists & p) : fPdgCode(p.fPdgCode) , fPt(p.fPt) , fY(p.fY) , fEta(p.fEta) { // copy constructor }; AliHists &operator=(const AliHists &) { // assignment operator, not yet implemented return *this; } }; struct AliHistsComm { TH1F *fNq; // histogram to store number of quark TH1F *fProcessID; // histogram to store process id TH2F *fePtRatio; // fraction of electron pT from D or B hadron TH2F *fDePtRatio; // fraction of D electron pT from B hadron TH2F *feDistance; // distance between electron production point to mother particle TH2F *fDeDistance; // distance between D electron production point to mother particle AliHistsComm() : fNq() , fProcessID() , fePtRatio() , fDePtRatio() , feDistance() , fDeDistance() { // default constructor }; AliHistsComm(const AliHistsComm & p) : fNq(p.fNq) , fProcessID(p.fProcessID) , fePtRatio(p.fePtRatio) , fDePtRatio(p.fDePtRatio) , feDistance(p.feDistance) , fDeDistance(p.fDeDistance) { // copy constructor }; AliHistsComm &operator=(const AliHistsComm &) { // assignment operator, not yet implemented return *this; } }; AliHists fHist[2][7][5]; // struct of histograms to store kinematics of given particles AliHistsComm fHistComm[2][5]; // struct of additional histograms of given particles TParticle *fHeavyQuark[50]; // store pointer of heavy flavour quark Int_t fIsHeavy[2]; // count of heavy flavour Int_t fNparents; // number of heavy hadrons to be considered Int_t fParentSelect[2][7]; // heavy hadron species ClassDef(AliHFEmcQA,1); }; #endif