[u/mrichter/AliRoot.git] / PWG3 / hfe / AliHFEmcQA.h

/**************************************************************************
 * 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 <TObject.h>
#endif

class TH1F;
class TH2F;
class TList;
class TParticle;
class TString;
class AliMCEvent;
class AliGenEventHeader;
class AliMCParticle;
class AliAODMCParticle;
class AliHFEcollection;

//________________________________________________________________
class AliHFEmcQA: public TObject {

  public: 
    enum heavyType {kCharm=4, kBeauty=5, kOthers=6, 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, kMisID=7, kEta=8, kOmega=9, kPhi=10, kEtaPrime=11, kRho0=12, kGammaPi0=13, kGammaEta=14, kGammaOmega=15, kGammaPhi=16, kGammaEtaPrime=17, kGammaRho0=18};
    enum ProcessType {
      kPairCreationFromq,  kPairCreationFromg,  kFlavourExitation,  kGluonSplitting, kInitialPartonShower, kLightQuarkShower
    };
    enum{
      kBgPtBins = 44,
      kElecBgSpecies = 6
    };


    AliHFEmcQA();
    AliHFEmcQA(const AliHFEmcQA &p); // copy constructor
    AliHFEmcQA &operator=(const AliHFEmcQA &); // assignment operator

    virtual ~AliHFEmcQA();

    TList *GetList() const { return fQAhistos; };
    void PostAnalyze() const;
    void CreatDefaultHistograms(TList * const qaList); // create default histograms  
    void CreateHistograms(const Int_t kquark, Int_t icut, TString hnopt=""); // create histograms for mc qa analysis
    void SetMCEvent(AliMCEvent* const mcEvent){fMCEvent = mcEvent;} 
    void SetGenEventHeader(AliGenEventHeader* const mcHeader){fMCHeader=mcHeader;} // 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 GetMesonKine(); // get meson and its decay electron pt spectra
    void EndOfEventAna(const Int_t kquark); // run analysis which should be done at the end of the event loop
    Int_t GetSource(const TParticle * const mcpart); // return source id 
    Int_t GetElecSource(TParticle * const mcpart); // return electron source id 
    Int_t GetSource(const AliAODMCParticle * const mcpart); // return electron source id for AOD
    Double_t GetWeightFactor(AliMCParticle *mctrack); // return weighting factor for electron's mother meson

    void SetBackgroundWeightFactor(Double_t *elecBackgroundFactor, Double_t *binLimit);
//    void SetBackgroundWeightFactor(Double_t const elecBackgroundFactor[6][44], Double_t const binLimit[45]) {fElecBackgroundFactor=elecBackgroundFactor; fBinLimit=binLimit;} 

  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

    AliMCEvent* fMCEvent; // mcevent pointer
    AliGenEventHeader* fMCHeader; // mcheader pointer
    TClonesArray *fMCArray; // mc array pointer

    static const Int_t fgkGluon=21; // gluon pdg code
    static const Int_t fgkMaxGener=10; // ancester level wanted to be checked 
    static const Int_t fgkMaxIter=100; // number of iteration to find out matching particle 
    static const Int_t fgkqType=7; // 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;
			}
      void FillList(TList *l) const;
    };
    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 *fPtCorr; // pt correlation between e and direct D or B 
      TH2F *fPtCorrDp; // pt correlation between e and direct D+
      TH2F *fPtCorrD0; // pt correlation between e and direct D0
      TH2F *fPtCorrDrest; // pt correlation between e and direct D rest
      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()
			  , fPtCorr()
			  , fPtCorrDp()
			  , fPtCorrD0()
			  , fPtCorrDrest()
			  , fDePtRatio()
			  , feDistance()
			  , fDeDistance()
      {  
			  // default constructor
			};
			AliHistsComm(const AliHistsComm & p)
			  : fNq(p.fNq)
			  , fProcessID(p.fProcessID)
			  , fePtRatio(p.fePtRatio)
			  , fPtCorr(p.fPtCorr)
			  , fPtCorrDp(p.fPtCorrDp)
			  , fPtCorrD0(p.fPtCorrD0)
			  , fPtCorrDrest(p.fPtCorrDrest)
			  , fDePtRatio(p.fDePtRatio)
			  , feDistance(p.feDistance)
			  , fDeDistance(p.fDeDistance)
      {
			  // copy constructor
			};
			AliHistsComm &operator=(const AliHistsComm &)
			{
			  // assignment operator, not yet implemented 
			  return *this;
			}
      void FillList(TList *l) const;
    };

    AliHists fHist[3][7][6]; // struct of histograms to store kinematics of given particles
    AliHistsComm fHistComm[2][6]; // struct of additional histograms of given particles
    TH2F *fhD[9]; // D meson pt,Y spectra
    TH1F *fhDLogbin[9]; // D meson pt w diff binning

    TList *fQAhistos;           // Container for QA histos
    AliHFEcollection *fMCQACollection;      //! Tasks own QA collection
    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

    Double_t fElecBackgroundFactor[6][44];     // Electron background factors
    Double_t fBinLimit[45];      // Electron background bins

  ClassDef(AliHFEmcQA,1);
};

#endif
Commit	Line	Data
259c3296	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
50685501	15	//
	16	// QA class of Heavy Flavor quark and fragmeted/decayed particles
	17	// -Check kinematics of Heavy Quarks/hadrons, and decayed leptons
	18	// pT, rapidity
	19	// decay lepton kinematics w/wo acceptance
	20	// heavy hadron decay length, electron pT fraction carried from decay
	21	// -Check yield of Heavy Quarks/hadrons
	22	// Number of produced heavy quark
	23	// Number of produced hadron of given pdg code
	24	//
259c3296	25
c2690925	26	#ifndef ALIHFEMCQA_H
	27	#define ALIHFEMCQA_H
	28
259c3296	29	#ifndef ROOT_TObject
75d81601	30	//#include <TObject.h>
259c3296	31	#endif
	32
	33	class TH1F;
	34	class TH2F;
70da6c5a	35	class TList;
259c3296	36	class TParticle;
259c3296	37	class TString;
faee3b18	38	class AliMCEvent;
9bcfd1ab	39	class AliGenEventHeader;
9250ffbf	40	class AliMCParticle;
0792aa82	41	class AliAODMCParticle;
c2690925	42	class AliHFEcollection;
259c3296	43
	44	//________________________________________________________________
	45	class AliHFEmcQA: public TObject {
	46
70da6c5a	47	public:
faee3b18	48	enum heavyType {kCharm=4, kBeauty=5, kOthers=6, kElectronPDG=11};
70da6c5a	49	enum qType {kQuark, kantiQuark, kHadron, keHadron, kDeHadron, kElectron, kElectron2nd};
c2690925	50	enum SourceType {kDirectCharm=1, kDirectBeauty=2, kBeautyCharm=3, kGamma=4, kPi0=5, kElse=6, kMisID=7, kEta=8, kOmega=9, kPhi=10, kEtaPrime=11, kRho0=12, kGammaPi0=13, kGammaEta=14, kGammaOmega=15, kGammaPhi=16, kGammaEtaPrime=17, kGammaRho0=18};
70da6c5a	51	enum ProcessType {
	52	kPairCreationFromq, kPairCreationFromg, kFlavourExitation, kGluonSplitting, kInitialPartonShower, kLightQuarkShower
	53	};
9250ffbf	54	enum{
	55	kBgPtBins = 44,
	56	kElecBgSpecies = 6
	57	};
	58
70da6c5a	59
	60	AliHFEmcQA();
	61	AliHFEmcQA(const AliHFEmcQA &p); // copy constructor
	62	AliHFEmcQA &operator=(const AliHFEmcQA &); // assignment operator
	63
	64	virtual ~AliHFEmcQA();
	65
70da6c5a	66	TList *GetList() const { return fQAhistos; };
70da6c5a	67	void PostAnalyze() const;
e3fc062d	68	void CreatDefaultHistograms(TList * const qaList); // create default histograms
70da6c5a	69	void CreateHistograms(const Int_t kquark, Int_t icut, TString hnopt=""); // create histograms for mc qa analysis
faee3b18	70	void SetMCEvent(AliMCEvent* const mcEvent){fMCEvent = mcEvent;}
70da6c5a	71	void SetGenEventHeader(AliGenEventHeader* const mcHeader){fMCHeader=mcHeader;} // set stack pointer
	72	void SetMCArray(TClonesArray* const mcarry){fMCArray=mcarry;} // set mcarray pointer
	73	void Init();
	74
	75	void GetQuarkKine(TParticle *part, Int_t iTrack, const Int_t kquark); // get heavy quark kinematics distribution
	76	void GetHadronKine(TParticle *part, const Int_t kquark); // get heavy hadron kinematics distribution
	77	void GetDecayedKine(TParticle *part, const Int_t kquark, const Int_t kdecayed, Int_t icut); // get decay electron kinematics distribution
9250ffbf	78	void GetDecayedKine(AliAODMCParticle *mcpart, const Int_t kquark, Int_t kdecayed, Int_t icut); // get decay electron kinematics for AOD
c2690925	79	void GetMesonKine(); // get meson and its decay electron pt spectra
70da6c5a	80	void EndOfEventAna(const Int_t kquark); // run analysis which should be done at the end of the event loop
9250ffbf	81	Int_t GetSource(const TParticle * const mcpart); // return source id
	82	Int_t GetElecSource(TParticle * const mcpart); // return electron source id
	83	Int_t GetSource(const AliAODMCParticle * const mcpart); // return electron source id for AOD
	84	Double_t GetWeightFactor(AliMCParticle *mctrack); // return weighting factor for electron's mother meson
	85
	86	void SetBackgroundWeightFactor(Double_t elecBackgroundFactor, Double_t binLimit);
	87	// void SetBackgroundWeightFactor(Double_t const elecBackgroundFactor[6][44], Double_t const binLimit[45]) {fElecBackgroundFactor=elecBackgroundFactor; fBinLimit=binLimit;}
dbe3abbe	88
70da6c5a	89	protected:
	90	void IdentifyMother(Int_t motherlabel, Int_t &motherpdg, Int_t &grandmotherlabel); //
	91	void HardScattering(const Int_t kquark, Int_t &motherID, Int_t &mothertype, Int_t &motherlabel); // check if the quark is produced from hard scattering
	92	void ReportStrangeness(Int_t &motherID, Int_t &mothertype, Int_t &motherlabel); // report if the quark production process is unknown
	93	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
	94	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
	95
faee3b18	96	AliMCEvent* fMCEvent; // mcevent pointer
70da6c5a	97	AliGenEventHeader* fMCHeader; // mcheader pointer
	98	TClonesArray *fMCArray; // mc array pointer
	99
c2690925	100	static const Int_t fgkGluon=21; // gluon pdg code
	101	static const Int_t fgkMaxGener=10; // ancester level wanted to be checked
	102	static const Int_t fgkMaxIter=100; // number of iteration to find out matching particle
	103	static const Int_t fgkqType=7; // number of particle type to be checked
70da6c5a	104
	105	struct AliHists{
	106	TH1F *fPdgCode; // histogram to store particle pdg code
	107	TH1F *fPt; // histogram to store pt
	108	TH1F *fY; // histogram to store rapidity
	109	TH1F *fEta; // histogram to store eta
75d81601	110
	111	AliHists()
	112	: fPdgCode()
	113	, fPt()
	114	, fY()
	115	, fEta()
70da6c5a	116	{
75d81601	117	// default constructor
	118	};
	119	AliHists(const AliHists & p)
	120	: fPdgCode(p.fPdgCode)
	121	, fPt(p.fPt)
	122	, fY(p.fY)
	123	, fEta(p.fEta)
70da6c5a	124	{
75d81601	125	// copy constructor
	126	};
	127	AliHists &operator=(const AliHists &)
	128	{
	129	// assignment operator, not yet implemented
	130	return *this;
	131	}
70da6c5a	132	void FillList(TList *l) const;
	133	};
	134	struct AliHistsComm {
	135	TH1F *fNq; // histogram to store number of quark
	136	TH1F *fProcessID; // histogram to store process id
	137	TH2F *fePtRatio; // fraction of electron pT from D or B hadron
ccc37cdc	138	TH2F *fPtCorr; // pt correlation between e and direct D or B
c2690925	139	TH2F *fPtCorrDp; // pt correlation between e and direct D+
	140	TH2F *fPtCorrD0; // pt correlation between e and direct D0
	141	TH2F *fPtCorrDrest; // pt correlation between e and direct D rest
70da6c5a	142	TH2F *fDePtRatio; // fraction of D electron pT from B hadron
	143	TH2F *feDistance; // distance between electron production point to mother particle
	144	TH2F *fDeDistance; // distance between D electron production point to mother particle
75d81601	145
	146	AliHistsComm()
	147	: fNq()
	148	, fProcessID()
	149	, fePtRatio()
ccc37cdc	150	, fPtCorr()
c2690925	151	, fPtCorrDp()
	152	, fPtCorrD0()
	153	, fPtCorrDrest()
75d81601	154	, fDePtRatio()
	155	, feDistance()
	156	, fDeDistance()
70da6c5a	157	{
75d81601	158	// default constructor
	159	};
	160	AliHistsComm(const AliHistsComm & p)
	161	: fNq(p.fNq)
	162	, fProcessID(p.fProcessID)
	163	, fePtRatio(p.fePtRatio)
ccc37cdc	164	, fPtCorr(p.fPtCorr)
c2690925	165	, fPtCorrDp(p.fPtCorrDp)
	166	, fPtCorrD0(p.fPtCorrD0)
	167	, fPtCorrDrest(p.fPtCorrDrest)
75d81601	168	, fDePtRatio(p.fDePtRatio)
	169	, feDistance(p.feDistance)
	170	, fDeDistance(p.fDeDistance)
70da6c5a	171	{
75d81601	172	// copy constructor
	173	};
	174	AliHistsComm &operator=(const AliHistsComm &)
	175	{
	176	// assignment operator, not yet implemented
	177	return *this;
	178	}
70da6c5a	179	void FillList(TList *l) const;
70da6c5a	180	};
259c3296	181
faee3b18	182	AliHists fHist[3][7][6]; // struct of histograms to store kinematics of given particles
faee3b18	183	AliHistsComm fHistComm[2][6]; // struct of additional histograms of given particles
ccc37cdc	184	TH2F *fhD[9]; // D meson pt,Y spectra
ccc37cdc	185	TH1F *fhDLogbin[9]; // D meson pt w diff binning
259c3296	186
70da6c5a	187	TList *fQAhistos; // Container for QA histos
c2690925	188	AliHFEcollection *fMCQACollection; //! Tasks own QA collection
bf892a6a	189	TParticle *fHeavyQuark[50]; //! store pointer of heavy flavour quark
70da6c5a	190	Int_t fIsHeavy[2]; // count of heavy flavour
	191	Int_t fNparents; // number of heavy hadrons to be considered
	192	Int_t fParentSelect[2][7]; // heavy hadron species
259c3296	193
9250ffbf	194	Double_t fElecBackgroundFactor[6][44]; // Electron background factors
	195	Double_t fBinLimit[45]; // Electron background bins
	196
70da6c5a	197	ClassDef(AliHFEmcQA,1);
259c3296	198	};
	199
	200	#endif