[u/mrichter/AliRoot.git] / ANALYSIS / AliESDv0KineCuts.h

/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */
/*
 * plesae see source file for more details
 */
#ifndef ALIESDV0KINECUTS_H
#define ALIESDV0KINECUTS_H

#include <TObject.h>

class AliESDv0;
class AliESDEvent;
class AliVEvent;
class AliESDtrack;
class AliVTrack;
class AliKFParticle;
class AliKFVertex;

class AliESDv0KineCuts : public TObject{
 public:
  enum{ // Reconstructed V0
    kUndef = -1,
      kGamma = 0,
      kK0 = 1,
      kLambda = 2,
      kALambda = 3
      };
  enum{ // data types
    kPP = 0,
      kPbPb = 1,  // not yet implemented
      };
  enum{ // operation modes
    kPurity = 0, // purely kinematical selection
      kEffGamma = 1  // !!! involves TPC dEdx or nSimga cuts !!!
      };
  
  AliESDv0KineCuts();
  virtual ~AliESDv0KineCuts();

  AliESDv0KineCuts(const AliESDv0KineCuts &ref);
  AliESDv0KineCuts &operator=(const AliESDv0KineCuts &ref);

  // main selection function - called once per V0 candidate
  Bool_t ProcessV0(AliESDv0* const v0, Int_t &pdgV0, Int_t &pdgP, Int_t &pdgN) const;
  Bool_t ProcessV0(AliESDv0* const v0, Int_t &pdgP, Int_t &pdgN) const;

  // must be called by the user
  void SetEvent(AliESDEvent* const event);
  void SetEvent(AliVEvent* const event);
  void SetPrimaryVertex(AliKFVertex* const v);

  // user can select an operation modes [see .cxx for details]
  void   SetMode(Int_t mode, Int_t type);
  void   SetMode(Int_t mode, const char* type);
  void	 UseExternalVertex(Bool_t use_external=kTRUE);
  AliKFParticle *CreateMotherParticle(const AliVTrack* const pdaughter, const AliVTrack* const ndaughter, Int_t pspec, Int_t nspec) const;
  void      SetCuts();                          // setup cuts for selected fMode and fType, see source file for details
  //
  // setter functions for V0 cut values
  // for default values see the constructor
  // see the default contructor for comments
  //

  // single track cuts
  void   SetNTPCclusters(Int_t n) { fTPCNcls = n; };
  void   SetTPCrefit(Bool_t r = kTRUE) { fTPCrefit = r; };
  void   SetTPCchi2perCls(Float_t chi2) { fTPCchi2perCls = chi2; };
  void   SetTPCclusterratio(Float_t r) { fTPCclsRatio = r; };
  void   SetNoKinks(Bool_t k = kTRUE) { fNoKinks = k; };

  // gamma cuts
  void   SetGammaCutChi2NDF(Float_t val)  { fGcutChi2NDF = val; };
  void   SetGammaCutCosPoint(Float_t * const val) { 
    fGcutCosPoint[0] = val[0];
    fGcutCosPoint[1] = val[1];
  };
  void   SetGammaCutDCA(Float_t * const val){
    fGcutDCA[0] = val[0];
    fGcutDCA[1] = val[1];
  };
  void   SetGammaCutVertexR(Float_t * const val){
    fGcutVertexR[0] = val[0];
    fGcutVertexR[1] = val[1];
  };
  void   SetGammaCutPsiPair(Float_t * const val){
    fGcutPsiPair[0] = val[0];
    fGcutPsiPair[1] = val[1];
  };
  void   SetGammaCutInvMass(Float_t val){
    fGcutInvMass = val;
  };
  // K0 cuts
  void   SetK0CutChi2NDF(Float_t val)  { fK0cutChi2NDF = val; };
  void   SetK0CutCosPoint(Float_t * const val) { 
    fK0cutCosPoint[0] = val[0];
    fK0cutCosPoint[1] = val[1];
  };
  void   SetK0CutDCA(Float_t * const val){
    fK0cutDCA[0] = val[0];
    fK0cutDCA[1] = val[1];
  };
  void   SetK0CutVertexR(Float_t * const val){
    fK0cutVertexR[0] = val[0];
    fK0cutVertexR[1] = val[1];
  };
  void   SetK0CutInvMass(Float_t * const val){
    fK0cutInvMass[0] = val[0];
    fK0cutInvMass[1] = val[1];
  };
  // lambda & anti-lambda cuts
  void   SetLambdaCutChi2NDF(Float_t val)  { fLcutChi2NDF = val; };
  void   SetLambdaCutCosPoint(Float_t * const val) { 
    fLcutCosPoint[0] = val[0];
    fLcutCosPoint[1] = val[1];
  };
  void   SetLambdaCutDCA(Float_t * const val){
    fLcutDCA[0] = val[0];
    fLcutDCA[1] = val[1];
  };
  void   SetLambdaCutVertexR(Float_t * const val){
    fLcutVertexR[0] = val[0];
    fLcutVertexR[1] = val[1];
  };
  void   SetLambdaCutInvMass(Float_t * const val){
    fLcutInvMass[0] = val[0];
    fLcutInvMass[1] = val[1];
  };
  

  Int_t  PreselectV0(AliESDv0* const v0) const;

  Bool_t CaseGamma(AliESDv0* const v0, Int_t &pdgV0, Int_t &pdgP, Int_t &pdgN) const;
  Bool_t CaseK0(AliESDv0* const v0, Int_t &pdgV0, Int_t &pdgP, Int_t &pdgN) const;
  Bool_t CaseLambda(AliESDv0* const v0, Int_t &pdgV0, Int_t &pdgP, Int_t &pdgN, Int_t id) const;

  Bool_t V0CutsCommon(const AliESDv0 * const v0) const;
  Bool_t SingleTrackCuts(AliESDv0 * const v0) const;
  void   Armenteros(AliESDv0* const v0, Float_t val[2]) const;
  Bool_t CheckSigns(AliESDv0* const v0) const;

  Double_t PsiPair(AliESDv0* const v0) const;
  Bool_t   GetConvPosXY(AliESDtrack * const ptrack, AliESDtrack * const ntrack, Double_t convpos[2]) const;
  Bool_t   GetHelixCenter(AliESDtrack * const track, Double_t b, Int_t charge, Double_t center[2]) const;

 protected:
  void Copy(TObject &ref) const;

 private:
  Bool_t    GammaEffCuts(AliESDv0 * const v0);  // set of cuts optimized for high gamma efficiency

 private:
  AliESDEvent           *fEvent;          // current event
  AliKFVertex           *fPrimaryVertex;  // primary vertex

  Int_t                 fType;            // data type: p-p or Pb-Pb
  Int_t                 fMode;            // current operation mode

  // single track cuts
  Int_t                 fTPCNcls;          // number of TPC clusters
  Bool_t                fTPCrefit;         // TPC refit - yes [kTRUE] or do not care [kFALSE]
  Float_t               fTPCchi2perCls;    // max. chi2 per TPC cluster
  Float_t               fTPCclsRatio;      // min. TPC cluster ratio
  Bool_t                fNoKinks;          // kinks - no [kTRUE] or do not care [kFalse]

  // gamma cut values
  Float_t               fGcutChi2NDF;      // Chi2NF cut value for the AliKFparticle gamma
  Float_t               fGcutCosPoint[2];  // cos of the pointing angle [min, max]
  Float_t               fGcutDCA[2];       // DCA between the daughter tracks [min, max]
  Float_t               fGcutVertexR[2];   // radius of the conversion point [min, max]
  Float_t               fGcutPsiPair[2];   // value of the psi pair cut [min, max]
  Float_t               fGcutInvMass;      // upper value on the gamma invariant mass
  // K0 cut values
  Float_t               fK0cutChi2NDF;     // Chi2NF cut value for the AliKFparticle K0
  Float_t               fK0cutCosPoint[2]; // cos of the pointing angle [min, max]
  Float_t               fK0cutDCA[2];      // DCA between the daughter tracks [min, max]
  Float_t               fK0cutVertexR[2];  // radius of the decay point [min, max]
  Float_t               fK0cutInvMass[2];  // invariant mass window
  // Lambda & anti-Lambda cut values
  Float_t               fLcutChi2NDF;      // Chi2NF cut value for the AliKFparticle K0
  Float_t               fLcutCosPoint[2];  // cos of the pointing angle [min, max]
  Float_t               fLcutDCA[2];       // DCA between the daughter tracks [min, max]
  Float_t               fLcutVertexR[2];   // radius of the decay point [min, max]
  Float_t               fLcutInvMass[2];   // invariant mass window
  Bool_t		fUseExternalVertex; // Is kTRUE if Vertex is set via SetPrimaryVertex()
  Bool_t		fDeleteVertex;	    // Is kTRUE if Vertex has been created in SetEvent() function
  
  ClassDef(AliESDv0KineCuts, 0);

};

#endif
Commit	Line	Data
a65a7e70	1	/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	2	* See cxx source for full Copyright notice */
	3	/*
	4	* plesae see source file for more details
	5	*/
	6	#ifndef ALIESDV0KINECUTS_H
	7	#define ALIESDV0KINECUTS_H
	8
	9	#include <TObject.h>
	10
	11	class AliESDv0;
	12	class AliESDEvent;
	13	class AliVEvent;
	14	class AliESDtrack;
	15	class AliVTrack;
	16	class AliKFParticle;
	17	class AliKFVertex;
	18
	19	class AliESDv0KineCuts : public TObject{
	20	public:
	21	enum{ // Reconstructed V0
	22	kUndef = -1,
	23	kGamma = 0,
	24	kK0 = 1,
	25	kLambda = 2,
	26	kALambda = 3
	27	};
	28	enum{ // data types
	29	kPP = 0,
	30	kPbPb = 1, // not yet implemented
	31	};
	32	enum{ // operation modes
	33	kPurity = 0, // purely kinematical selection
	34	kEffGamma = 1 // !!! involves TPC dEdx or nSimga cuts !!!
	35	};
	36
	37	AliESDv0KineCuts();
	38	virtual ~AliESDv0KineCuts();
	39
	40	AliESDv0KineCuts(const AliESDv0KineCuts &ref);
	41	AliESDv0KineCuts &operator=(const AliESDv0KineCuts &ref);
	42
	43	// main selection function - called once per V0 candidate
	44	Bool_t ProcessV0(AliESDv0* const v0, Int_t &pdgV0, Int_t &pdgP, Int_t &pdgN) const;
	45	Bool_t ProcessV0(AliESDv0* const v0, Int_t &pdgP, Int_t &pdgN) const;
	46
	47	// must be called by the user
	48	void SetEvent(AliESDEvent* const event);
	49	void SetEvent(AliVEvent* const event);
	50	void SetPrimaryVertex(AliKFVertex* const v);
	51
	52	// user can select an operation modes [see .cxx for details]
	53	void SetMode(Int_t mode, Int_t type);
	54	void SetMode(Int_t mode, const char* type);
	55	void UseExternalVertex(Bool_t use_external=kTRUE);
	56	AliKFParticle CreateMotherParticle(const AliVTrack const pdaughter, const AliVTrack* const ndaughter, Int_t pspec, Int_t nspec) const;
	57	void SetCuts(); // setup cuts for selected fMode and fType, see source file for details
	58	//
	59	// setter functions for V0 cut values
	60	// for default values see the constructor
	61	// see the default contructor for comments
	62	//
	63
	64	// single track cuts
65	void SetNTPCclusters(Int_t n) { fTPCNcls = n; };
66	void SetTPCrefit(Bool_t r = kTRUE) { fTPCrefit = r; };
67	void SetTPCchi2perCls(Float_t chi2) { fTPCchi2perCls = chi2; };
68	void SetTPCclusterratio(Float_t r) { fTPCclsRatio = r; };
69	void SetNoKinks(Bool_t k = kTRUE) { fNoKinks = k; };
70
71	// gamma cuts
72	void SetGammaCutChi2NDF(Float_t val) { fGcutChi2NDF = val; };
73	void SetGammaCutCosPoint(Float_t * const val) {
74	fGcutCosPoint[0] = val[0];
75	fGcutCosPoint[1] = val[1];
76	};
77	void SetGammaCutDCA(Float_t * const val){
78	fGcutDCA[0] = val[0];
79	fGcutDCA[1] = val[1];
80	};
81	void SetGammaCutVertexR(Float_t * const val){
82	fGcutVertexR[0] = val[0];
83	fGcutVertexR[1] = val[1];
84	};
85	void SetGammaCutPsiPair(Float_t * const val){
86	fGcutPsiPair[0] = val[0];
87	fGcutPsiPair[1] = val[1];
88	};
89	void SetGammaCutInvMass(Float_t val){
90	fGcutInvMass = val;
91	};
92	// K0 cuts
93	void SetK0CutChi2NDF(Float_t val) { fK0cutChi2NDF = val; };
94	void SetK0CutCosPoint(Float_t * const val) {
95	fK0cutCosPoint[0] = val[0];
96	fK0cutCosPoint[1] = val[1];
97	};
98	void SetK0CutDCA(Float_t * const val){
99	fK0cutDCA[0] = val[0];
100	fK0cutDCA[1] = val[1];
101	};
102	void SetK0CutVertexR(Float_t * const val){
103	fK0cutVertexR[0] = val[0];
104	fK0cutVertexR[1] = val[1];
105	};
106	void SetK0CutInvMass(Float_t * const val){
107	fK0cutInvMass[0] = val[0];
108	fK0cutInvMass[1] = val[1];
109	};
110	// lambda & anti-lambda cuts
111	void SetLambdaCutChi2NDF(Float_t val) { fLcutChi2NDF = val; };
112	void SetLambdaCutCosPoint(Float_t * const val) {
113	fLcutCosPoint[0] = val[0];
114	fLcutCosPoint[1] = val[1];
115	};
116	void SetLambdaCutDCA(Float_t * const val){
117	fLcutDCA[0] = val[0];
118	fLcutDCA[1] = val[1];
119	};
120	void SetLambdaCutVertexR(Float_t * const val){
121	fLcutVertexR[0] = val[0];
122	fLcutVertexR[1] = val[1];
123	};
124	void SetLambdaCutInvMass(Float_t * const val){
125	fLcutInvMass[0] = val[0];
126	fLcutInvMass[1] = val[1];
127	};
128
129
130	Int_t PreselectV0(AliESDv0* const v0) const;
131
132	Bool_t CaseGamma(AliESDv0* const v0, Int_t &pdgV0, Int_t &pdgP, Int_t &pdgN) const;
133	Bool_t CaseK0(AliESDv0* const v0, Int_t &pdgV0, Int_t &pdgP, Int_t &pdgN) const;
134	Bool_t CaseLambda(AliESDv0* const v0, Int_t &pdgV0, Int_t &pdgP, Int_t &pdgN, Int_t id) const;
135
136	Bool_t V0CutsCommon(const AliESDv0 * const v0) const;
137	Bool_t SingleTrackCuts(AliESDv0 * const v0) const;
138	void Armenteros(AliESDv0* const v0, Float_t val[2]) const;
139	Bool_t CheckSigns(AliESDv0* const v0) const;
140
141	Double_t PsiPair(AliESDv0* const v0) const;
142	Bool_t GetConvPosXY(AliESDtrack * const ptrack, AliESDtrack * const ntrack, Double_t convpos[2]) const;
143	Bool_t GetHelixCenter(AliESDtrack * const track, Double_t b, Int_t charge, Double_t center[2]) const;
144
145	protected:
146	void Copy(TObject &ref) const;
147
148	private:
149	Bool_t GammaEffCuts(AliESDv0 * const v0); // set of cuts optimized for high gamma efficiency
150
151	private:
152	AliESDEvent *fEvent; // current event
153	AliKFVertex *fPrimaryVertex; // primary vertex
154
155	Int_t fType; // data type: p-p or Pb-Pb
156	Int_t fMode; // current operation mode
157
158	// single track cuts
159	Int_t fTPCNcls; // number of TPC clusters
160	Bool_t fTPCrefit; // TPC refit - yes [kTRUE] or do not care [kFALSE]
161	Float_t fTPCchi2perCls; // max. chi2 per TPC cluster
162	Float_t fTPCclsRatio; // min. TPC cluster ratio
163	Bool_t fNoKinks; // kinks - no [kTRUE] or do not care [kFalse]
164
165	// gamma cut values
166	Float_t fGcutChi2NDF; // Chi2NF cut value for the AliKFparticle gamma
167	Float_t fGcutCosPoint[2]; // cos of the pointing angle [min, max]
168	Float_t fGcutDCA[2]; // DCA between the daughter tracks [min, max]
169	Float_t fGcutVertexR[2]; // radius of the conversion point [min, max]
170	Float_t fGcutPsiPair[2]; // value of the psi pair cut [min, max]
171	Float_t fGcutInvMass; // upper value on the gamma invariant mass
172	// K0 cut values
173	Float_t fK0cutChi2NDF; // Chi2NF cut value for the AliKFparticle K0
174	Float_t fK0cutCosPoint[2]; // cos of the pointing angle [min, max]
175	Float_t fK0cutDCA[2]; // DCA between the daughter tracks [min, max]
176	Float_t fK0cutVertexR[2]; // radius of the decay point [min, max]
177	Float_t fK0cutInvMass[2]; // invariant mass window
178	// Lambda & anti-Lambda cut values
179	Float_t fLcutChi2NDF; // Chi2NF cut value for the AliKFparticle K0
180	Float_t fLcutCosPoint[2]; // cos of the pointing angle [min, max]
181	Float_t fLcutDCA[2]; // DCA between the daughter tracks [min, max]
182	Float_t fLcutVertexR[2]; // radius of the decay point [min, max]
183	Float_t fLcutInvMass[2]; // invariant mass window
184	Bool_t fUseExternalVertex; // Is kTRUE if Vertex is set via SetPrimaryVertex()
185	Bool_t fDeleteVertex; // Is kTRUE if Vertex has been created in SetEvent() function
186
187	ClassDef(AliESDv0KineCuts, 0);
188
189	};
190
191	#endif