[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 AliAODMCParticle;

//________________________________________________________________
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};
    enum ProcessType {
      kPairCreationFromq,  kPairCreationFromg,  kFlavourExitation,  kGluonSplitting, kInitialPartonShower, kLightQuarkShower
    };

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

    virtual ~AliHFEmcQA();

    void MakeHistograms();
    TList *GetList() const { return fQAhistos; };
    void PostAnalyze() const;
    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 EndOfEventAna(const Int_t kquark); // run analysis which should be done at the end of the event loop
		Int_t GetSource(TParticle * const mcpart); // return electron source id 
		Int_t GetSource(AliAODMCParticle * const 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

    AliMCEvent* fMCEvent; // mcevent pointer
    AliGenEventHeader* fMCHeader; // mcheader 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;
			}
      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 *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;
			}
      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

    TList *fQAhistos;           // Container for QA histos
    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
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
dbe3abbe	26	#ifndef ALIHFEMCQA_H
dbe3abbe	27	#define ALIHFEMCQA_H
259c3296	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;
0792aa82	40	class AliAODMCParticle;
259c3296	41
	42	//________________________________________________________________
	43	class AliHFEmcQA: public TObject {
	44
70da6c5a	45	public:
faee3b18	46	enum heavyType {kCharm=4, kBeauty=5, kOthers=6, kElectronPDG=11};
70da6c5a	47	enum qType {kQuark, kantiQuark, kHadron, keHadron, kDeHadron, kElectron, kElectron2nd};
faee3b18	48	enum SourceType {kDirectCharm=1, kDirectBeauty=2, kBeautyCharm=3, kGamma=4, kPi0=5, kElse=6, kMisID=7};
70da6c5a	49	enum ProcessType {
	50	kPairCreationFromq, kPairCreationFromg, kFlavourExitation, kGluonSplitting, kInitialPartonShower, kLightQuarkShower
	51	};
	52
	53	AliHFEmcQA();
	54	AliHFEmcQA(const AliHFEmcQA &p); // copy constructor
	55	AliHFEmcQA &operator=(const AliHFEmcQA &); // assignment operator
	56
	57	virtual ~AliHFEmcQA();
	58
	59	void MakeHistograms();
	60	TList *GetList() const { return fQAhistos; };
	61	void PostAnalyze() const;
	62	void CreateHistograms(const Int_t kquark, Int_t icut, TString hnopt=""); // create histograms for mc qa analysis
faee3b18	63	void SetMCEvent(AliMCEvent* const mcEvent){fMCEvent = mcEvent;}
70da6c5a	64	void SetGenEventHeader(AliGenEventHeader* const mcHeader){fMCHeader=mcHeader;} // set stack pointer
	65	void SetMCArray(TClonesArray* const mcarry){fMCArray=mcarry;} // set mcarray pointer
	66	void Init();
	67
	68	void GetQuarkKine(TParticle *part, Int_t iTrack, const Int_t kquark); // get heavy quark kinematics distribution
	69	void GetHadronKine(TParticle *part, const Int_t kquark); // get heavy hadron kinematics distribution
	70	void GetDecayedKine(TParticle *part, const Int_t kquark, const Int_t kdecayed, Int_t icut); // get decay electron kinematics distribution
0792aa82	71	void GetDecayedKine(AliAODMCParticle *mcpart, const Int_t kquark, Int_t kdecayed, Int_t icut); // get decay electron kinematics for AOD
70da6c5a	72	void EndOfEventAna(const Int_t kquark); // run analysis which should be done at the end of the event loop
9bcfd1ab	73	Int_t GetSource(TParticle * const mcpart); // return electron source id
9bcfd1ab	74	Int_t GetSource(AliAODMCParticle * const mcpart); // return electron source id for AOD
dbe3abbe	75
70da6c5a	76	protected:
	77	void IdentifyMother(Int_t motherlabel, Int_t &motherpdg, Int_t &grandmotherlabel); //
	78	void HardScattering(const Int_t kquark, Int_t &motherID, Int_t &mothertype, Int_t &motherlabel); // check if the quark is produced from hard scattering
	79	void ReportStrangeness(Int_t &motherID, Int_t &mothertype, Int_t &motherlabel); // report if the quark production process is unknown
	80	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
	81	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
	82
faee3b18	83	AliMCEvent* fMCEvent; // mcevent pointer
70da6c5a	84	AliGenEventHeader* fMCHeader; // mcheader pointer
	85	TClonesArray *fMCArray; // mc array pointer
	86
	87	static const Int_t fgkGluon; // gluon pdg code
	88	static const Int_t fgkMaxGener; // ancester level wanted to be checked
	89	static const Int_t fgkMaxIter; // number of iteration to find out matching particle
	90	static const Int_t fgkqType; // number of particle type to be checked
	91
	92	struct AliHists{
	93	TH1F *fPdgCode; // histogram to store particle pdg code
	94	TH1F *fPt; // histogram to store pt
	95	TH1F *fY; // histogram to store rapidity
	96	TH1F *fEta; // histogram to store eta
75d81601	97
	98	AliHists()
	99	: fPdgCode()
	100	, fPt()
	101	, fY()
	102	, fEta()
70da6c5a	103	{
75d81601	104	// default constructor
	105	};
	106	AliHists(const AliHists & p)
	107	: fPdgCode(p.fPdgCode)
	108	, fPt(p.fPt)
	109	, fY(p.fY)
	110	, fEta(p.fEta)
70da6c5a	111	{
75d81601	112	// copy constructor
	113	};
	114	AliHists &operator=(const AliHists &)
	115	{
	116	// assignment operator, not yet implemented
	117	return *this;
	118	}
70da6c5a	119	void FillList(TList *l) const;
	120	};
	121	struct AliHistsComm {
	122	TH1F *fNq; // histogram to store number of quark
	123	TH1F *fProcessID; // histogram to store process id
	124	TH2F *fePtRatio; // fraction of electron pT from D or B hadron
	125	TH2F *fDePtRatio; // fraction of D electron pT from B hadron
	126	TH2F *feDistance; // distance between electron production point to mother particle
	127	TH2F *fDeDistance; // distance between D electron production point to mother particle
75d81601	128
	129	AliHistsComm()
	130	: fNq()
	131	, fProcessID()
	132	, fePtRatio()
	133	, fDePtRatio()
	134	, feDistance()
	135	, fDeDistance()
70da6c5a	136	{
75d81601	137	// default constructor
	138	};
	139	AliHistsComm(const AliHistsComm & p)
	140	: fNq(p.fNq)
	141	, fProcessID(p.fProcessID)
	142	, fePtRatio(p.fePtRatio)
	143	, fDePtRatio(p.fDePtRatio)
	144	, feDistance(p.feDistance)
	145	, fDeDistance(p.fDeDistance)
70da6c5a	146	{
75d81601	147	// copy constructor
	148	};
	149	AliHistsComm &operator=(const AliHistsComm &)
	150	{
	151	// assignment operator, not yet implemented
	152	return *this;
	153	}
70da6c5a	154	void FillList(TList *l) const;
70da6c5a	155	};
259c3296	156
faee3b18	157	AliHists fHist[3][7][6]; // struct of histograms to store kinematics of given particles
faee3b18	158	AliHistsComm fHistComm[2][6]; // struct of additional histograms of given particles
259c3296	159
70da6c5a	160	TList *fQAhistos; // Container for QA histos
	161	TParticle *fHeavyQuark[50]; // store pointer of heavy flavour quark
	162	Int_t fIsHeavy[2]; // count of heavy flavour
	163	Int_t fNparents; // number of heavy hadrons to be considered
	164	Int_t fParentSelect[2][7]; // heavy hadron species
259c3296	165
259c3296	166
70da6c5a	167	ClassDef(AliHFEmcQA,1);
259c3296	168	};
	169
	170	#endif