[u/mrichter/AliRoot.git] / ITS / AliITStrackMI.h

#ifndef ALIITSTRACKMI_H
#define ALIITSTRACKMI_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

//-------------------------------------------------------------------------
//                       ITS Track Class
//
//        Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch 
//     dEdx analysis by: Boris Batyunya, JINR, Boris.Batiounia@cern.ch
//-------------------------------------------------------------------------


/*****************************************************************************
 *                          December 18, 2000                                *
 *  Internal view of the ITS track parametrisation as well as the order of   *
 *           track parameters are subject for possible changes !             *
 *  Use GetExternalParameters() and GetExternalCovariance() to access ITS    *
 *      track information regardless of its internal representation.         *
 * This formation is now fixed in the following way:                         *
 *      external param0:   local Y-coordinate of a track (cm)                *
 *      external param1:   local Z-coordinate of a track (cm)                *
 *      external param2:   local sine of the track momentum azimuthal angle  *
 *      external param3:   tangent of the track momentum dip angle           *
 *      external param4:   1/pt (1/(GeV/c))                                  *
 *****************************************************************************/

#include <AliKalmanTrack.h>

#include "AliITSrecoV2.h"
#include "AliITStrackV2.h"

class AliESDtrack;

//_____________________________________________________________________________
class AliITStrackMI : public AliITStrackV2 {
  friend class AliITStrackerV2;
  friend class AliITStrackerMI;
public:
  AliITStrackMI();
  AliITStrackMI(AliESDtrack& t,Bool_t c=kFALSE) throw (const Char_t *);
  AliITStrackMI(const AliITStrackMI& t);
  Int_t GetProlongationFast(Double_t alpha, Double_t xr,Double_t &y, Double_t &z);
  Bool_t UpdateMI(Double_t cy, Double_t cz, Double_t cerry, Double_t cerrz, Double_t chi2, Int_t i);  
  Int_t CorrectForMaterial(Double_t d, Double_t x0=21.82);

  void UpdateESDtrack(ULong_t flags);

  void SetReconstructed(Bool_t sr=kTRUE){fReconstructed = sr;}  
  Bool_t GetReconstructed() const {return fReconstructed;}
  void SetChi2MIP(Int_t i,Float_t val){fChi2MIP[i]=val;}
  Float_t GetChi2MIP(Int_t i) const {return fChi2MIP[i];}  
  void IncrementNSkipped(){fNSkipped++;} // increment by 1 the # of skipped cls
  Float_t GetNSkipped() const {return fNSkipped;}
  void IncrementNUsed(){fNUsed++;} // increment by 1 the # of shared clusters
  Float_t GetNUsed() const {return fNUsed;}

  Int_t Compare(const TObject *o) const;
  Double_t GetCov33() const {return GetCovariance()[9];} // cov. matrix el. 3,3
  //Double_t GetCov44() const {return GetCovariance()[15];}// cov. matrix el. 4,4
  Float_t GetDy(Int_t i) const {return fDy[i];}
  Float_t GetDz(Int_t i) const {return fDz[i];}
  Float_t GetSigmaY(Int_t i) const {return fSigmaY[i];}
  Float_t GetSigmaZ(Int_t i) const {return fSigmaZ[i];}

  Double_t GetPredictedChi2MI(Double_t cy, Double_t cz, Double_t cerry, Double_t cerrz) const;
  Bool_t IsGoldPrimary();
protected:

  Float_t fNUsed;                          // number of shared clusters
  Float_t fNSkipped;                       // number of skipped clusters
  Float_t fNDeadZone;                     // number of clusters in dead zone
  Float_t fDeadZoneProbability;          // probability to cross dead zone
  Bool_t  fReconstructed;                 // reconstructed - accepted flag
  Float_t fChi2MIP[12];                   // MIP chi squres 

  Float_t fDy[12];           //dy in layer
  Float_t fDz[12];           //dz in layer
  Float_t fSigmaY[12];       //sigma y 
  Float_t fSigmaZ[12];       //sigma z
  Float_t fNy[6];              //expected size of cluster
  Float_t fNz[6];              //expected size of cluster
  Float_t fD[2];            //distance to the vertex
  Float_t fDnorm[2];        // normalized distance to the vertex
  Float_t fNormQ[6];        // normalized Q
  Float_t fExpQ;            // expected Q
  Float_t fNormChi2[6];     // normalized chi2 
  Float_t fChi22;           // chi22
  Float_t fdEdxMismatch;    
  Bool_t fConstrain;        //indication of the vertex constrain
  Int_t  fClIndex[6];       //cluster Index
  Bool_t fGoldV0;           //corresponding gold V0 found
  ClassDef(AliITStrackMI,1)   //ITS reconstructed track
};

#endif
Commit	Line	Data
15dd636f	1	#ifndef ALIITSTRACKMI_H
	2	#define ALIITSTRACKMI_H
	3	/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	4	* See cxx source for full Copyright notice */
	5
	6	//-------------------------------------------------------------------------
	7	// ITS Track Class
	8	//
	9	// Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch
	10	// dEdx analysis by: Boris Batyunya, JINR, Boris.Batiounia@cern.ch
	11	//-------------------------------------------------------------------------
	12
	13
	14	/*****************************************************************************
	15	* December 18, 2000 *
	16	* Internal view of the ITS track parametrisation as well as the order of *
	17	* track parameters are subject for possible changes ! *
	18	* Use GetExternalParameters() and GetExternalCovariance() to access ITS *
	19	* track information regardless of its internal representation. *
	20	* This formation is now fixed in the following way: *
	21	* external param0: local Y-coordinate of a track (cm) *
	22	* external param1: local Z-coordinate of a track (cm) *
	23	* external param2: local sine of the track momentum azimuthal angle *
	24	* external param3: tangent of the track momentum dip angle *
	25	* external param4: 1/pt (1/(GeV/c)) *
	26	*****************************************************************************/
	27
	28	#include <AliKalmanTrack.h>
	29
	30	#include "AliITSrecoV2.h"
	31	#include "AliITStrackV2.h"
	32
	33	class AliESDtrack;
	34
	35	//_____________________________________________________________________________
	36	class AliITStrackMI : public AliITStrackV2 {
	37	friend class AliITStrackerV2;
	38	friend class AliITStrackerMI;
	39	public:
	40	AliITStrackMI();
	41	AliITStrackMI(AliESDtrack& t,Bool_t c=kFALSE) throw (const Char_t *);
	42	AliITStrackMI(const AliITStrackMI& t);
	43	Int_t GetProlongationFast(Double_t alpha, Double_t xr,Double_t &y, Double_t &z);
6c94f330	44	Bool_t UpdateMI(Double_t cy, Double_t cz, Double_t cerry, Double_t cerrz, Double_t chi2, Int_t i);
15dd636f	45	Int_t CorrectForMaterial(Double_t d, Double_t x0=21.82);
	46
	47	void UpdateESDtrack(ULong_t flags);
	48
	49	void SetReconstructed(Bool_t sr=kTRUE){fReconstructed = sr;}
	50	Bool_t GetReconstructed() const {return fReconstructed;}
	51	void SetChi2MIP(Int_t i,Float_t val){fChi2MIP[i]=val;}
	52	Float_t GetChi2MIP(Int_t i) const {return fChi2MIP[i];}
	53	void IncrementNSkipped(){fNSkipped++;} // increment by 1 the # of skipped cls
	54	Float_t GetNSkipped() const {return fNSkipped;}
	55	void IncrementNUsed(){fNUsed++;} // increment by 1 the # of shared clusters
	56	Float_t GetNUsed() const {return fNUsed;}
	57
	58	Int_t Compare(const TObject *o) const;
6c94f330	59	Double_t GetCov33() const {return GetCovariance()[9];} // cov. matrix el. 3,3
6c94f330	60	//Double_t GetCov44() const {return GetCovariance()[15];}// cov. matrix el. 4,4
15dd636f	61	Float_t GetDy(Int_t i) const {return fDy[i];}
	62	Float_t GetDz(Int_t i) const {return fDz[i];}
	63	Float_t GetSigmaY(Int_t i) const {return fSigmaY[i];}
	64	Float_t GetSigmaZ(Int_t i) const {return fSigmaZ[i];}
	65
	66	Double_t GetPredictedChi2MI(Double_t cy, Double_t cz, Double_t cerry, Double_t cerrz) const;
628e7bb0	67	Bool_t IsGoldPrimary();
15dd636f	68	protected:
	69
	70	Float_t fNUsed; // number of shared clusters
	71	Float_t fNSkipped; // number of skipped clusters
	72	Float_t fNDeadZone; // number of clusters in dead zone
	73	Float_t fDeadZoneProbability; // probability to cross dead zone
628e7bb0	74	Bool_t fReconstructed; // reconstructed - accepted flag
15dd636f	75	Float_t fChi2MIP[12]; // MIP chi squres
	76
	77	Float_t fDy[12]; //dy in layer
	78	Float_t fDz[12]; //dz in layer
	79	Float_t fSigmaY[12]; //sigma y
	80	Float_t fSigmaZ[12]; //sigma z
	81	Float_t fNy[6]; //expected size of cluster
	82	Float_t fNz[6]; //expected size of cluster
	83	Float_t fD[2]; //distance to the vertex
628e7bb0	84	Float_t fDnorm[2]; // normalized distance to the vertex
15dd636f	85	Float_t fNormQ[6]; // normalized Q
	86	Float_t fExpQ; // expected Q
	87	Float_t fNormChi2[6]; // normalized chi2
	88	Float_t fChi22; // chi22
	89	Float_t fdEdxMismatch;
	90	Bool_t fConstrain; //indication of the vertex constrain
	91	Int_t fClIndex[6]; //cluster Index
628e7bb0	92	Bool_t fGoldV0; //corresponding gold V0 found
15dd636f	93	ClassDef(AliITStrackMI,1) //ITS reconstructed track
	94	};
	95
	96	#endif
	97
	98