[u/mrichter/AliRoot.git] / STEER / AliAODRecoDecay.h

#ifndef ALIAODRECODECAY_H
#define ALIAODRECODECAY_H
/* Copyright(c) 1998-2006, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

//***********************************************************
// Class AliAODRecoDecay
// base class for AOD reconstructed decays
// Author: A.Dainese, andrea.dainese@lnl.infn.it
//***********************************************************

#include <TMath.h>
#include "AliAODVertex.h"
#include "AliVirtualParticle.h"

class AliAODRecoDecay : public AliVirtualParticle {

 public:

  AliAODRecoDecay();
  AliAODRecoDecay(AliAODVertex *vtx2,Int_t nprongs,Short_t charge,
		  Double_t *px,Double_t *py,Double_t *pz,
		  Double_t *d0);
  AliAODRecoDecay(AliAODVertex *vtx2,Int_t nprongs,Short_t charge,
		  Double_t *d0);
  virtual ~AliAODRecoDecay();

  AliAODRecoDecay(const AliAODRecoDecay& source);
  AliAODRecoDecay& operator=(const AliAODRecoDecay& source); 
   

  // decay vertex
  Double_t GetSecVtxX() const {return fSecondaryVtx->GetX();}
  Double_t GetSecVtxY() const {return fSecondaryVtx->GetY();}
  Double_t GetSecVtxZ() const {return fSecondaryVtx->GetZ();}
  Double_t RadiusSecVtx() const;
  void     SetSecondaryVtx(AliAODVertex *vtx2) {fSecondaryVtx=vtx2;}
  AliAODVertex* GetSecondaryVtx() const {return fSecondaryVtx;}
  void     GetSecondaryVtx(Double_t vtx[3]) const;
  Double_t GetReducedChi2() const {return fSecondaryVtx->GetChi2perNDF();}
  Short_t  Charge() const {return fCharge;}
  Short_t  GetCharge() const {return fCharge;}
  void     SetCharge(Short_t charge=0) {fCharge=charge;}

  // PID
  void      SetPID(Int_t nprongs,Double_t *pid);
  Double_t *GetPID() const { return fPID; }
  void      GetPIDProng(Int_t ip,Double_t *pid) const;
  virtual const Double_t *PID() const { return fPID; }

  // prong-to-prong DCAs
  void    SetDCAs(Int_t nDCA,Float_t *dca);
  void    SetDCA(Float_t dca); // 2 prong
  Float_t GetDCA(Int_t i=0) const {return fDCA[i];}

  //event and run number
  void SetEventRunNumbers(Int_t en,Int_t rn) 
    { fEventNumber=en; fRunNumber=rn; return; }
  Int_t GetEventNumber() const { return fEventNumber; }
  Int_t GetRunNumber() const { return fRunNumber; }

  // kinematics & topology
  Double_t Px() const; 
  Double_t Py() const;
  Double_t Pz() const;
  Double_t P() const {return TMath::Sqrt(Px()*Px()+Py()*Py()+Pz()*Pz());}
  Double_t Pt() const {return TMath::Sqrt(Px()*Px()+Py()*Py());}
  Double_t OneOverPt() const {return (Pt() ? 1./Pt() : 0.);}
  Double_t Phi() const {return TMath::ATan2(Py(),Px());}
  Double_t Theta() const {return 0.5*TMath::Pi()-TMath::ATan(Pz()/(Pt()+1.e-13));}
  Double_t Eta() const {return 0.5*TMath::Log((P()+Pz())/(P()-Pz()+1.e-13));}
  Double_t E(UInt_t pdg) const;
  Double_t Y(UInt_t pdg) const {return 0.5*TMath::Log((E(pdg)+Pz())/(E(pdg)-Pz()+1.e-13));}
  Double_t DecayLength(Double_t point[3]) const;
  Double_t DecayLength(AliAODVertex *vtx1) const
    {return fSecondaryVtx->DistanceToVertex(vtx1);}
  Double_t DecayLengthError(AliAODVertex *vtx1) const
    {return fSecondaryVtx->ErrorDistanceToVertex(vtx1);}
  Double_t NormalizedDecayLength(AliAODVertex *vtx1) const 
    {return DecayLength(vtx1)/DecayLengthError(vtx1);}
  Double_t DecayLengthXY(Double_t point[3]) const;
  Double_t DecayLengthXY(AliAODVertex *vtx1) const
    {return fSecondaryVtx->DistanceXYToVertex(vtx1);}
  Double_t DecayLengthXYError(AliAODVertex *vtx1) const
    {return fSecondaryVtx->ErrorDistanceXYToVertex(vtx1);}
  Double_t NormalizedDecayLengthXY(AliAODVertex *vtx1) const 
    {return DecayLengthXY(vtx1)/DecayLengthXYError(vtx1);}
  Double_t Ct(UInt_t pdg,Double_t point[3]) const;
  Double_t Ct(UInt_t pdg,AliAODVertex *vtx1) const;
  Double_t CosPointingAngle(Double_t point[3]) const;
  Double_t CosPointingAngle(AliAODVertex *vtx1) const;
  Double_t CosPointingAngleXY(Double_t point[3]) const;
  Double_t CosPointingAngleXY(AliAODVertex *vtx1) const;
  Double_t CosThetaStar(Int_t ip,UInt_t pdgvtx,UInt_t pdgprong0,UInt_t pdgprong1) const;
  Double_t InvMass(Int_t npdg,UInt_t *pdg) const;
  Double_t ImpParXY(Double_t point[3]) const;
  Double_t ImpParXY(AliAODVertex *vtx1) const;

  // prongs
  //Int_t   GetNProngs() const {return fSecondaryVtx->GetNDaughters();}
  Int_t   GetNProngs() const {return fNProngs;}

  Short_t ChargeProng(Int_t ip) const;
  Double_t Getd0Prong(Int_t ip) const {return fd0[ip];}
  Double_t Prodd0d0(Int_t ip1=0,Int_t ip2=0) const {return fd0[ip1]*fd0[ip2];} 
  Double_t PxProng(Int_t ip) const {return fPx[ip];}
  Double_t PyProng(Int_t ip) const {return fPy[ip];}
  Double_t PzProng(Int_t ip) const {return fPz[ip];}
  Double_t PtProng(Int_t ip) const; 
  Double_t PProng(Int_t ip) const;
  Double_t PhiProng(Int_t ip) const 
    {return TMath::ATan2(PyProng(ip),PxProng(ip));}
    Double_t ThetaProng(Int_t ip) const 
      {return 0.5*TMath::Pi()-TMath::ATan(PzProng(ip)/(PtProng(ip)+1.e-13));}
  Double_t EtaProng(Int_t ip) const 
    {return -TMath::Log(TMath::Tan(0.5*ThetaProng(ip)));}
  Double_t EProng(Int_t ip,UInt_t pdg) const;
  Double_t YProng(Int_t ip,UInt_t pdg) const 
    {return 0.5*TMath::Log((EProng(ip,pdg)+PzProng(ip))/(EProng(ip,pdg)-PzProng(ip)+1.e-13));}
  Double_t Alpha() const;             // for Armenteros-Podolanski plot (V0's)
  Double_t QlProng(Int_t ip) const;
  Double_t QtProng(Int_t ip=0) const; // for Armenteros-Podolanski plot (V0's)
  Double_t QlProngFlightLine(Int_t ip,Double_t point[3]) const;
  Double_t QlProngFlightLine(Int_t ip,AliAODVertex *vtx1) const;
  Double_t QtProngFlightLine(Int_t ip,Double_t point[3]) const;
  Double_t QtProngFlightLine(Int_t ip,AliAODVertex *vtx1) const;
  Double_t InvMass2Prongs(Int_t ip1,Int_t ip2,UInt_t pdg1,UInt_t pdg2) const;
  Double_t ProngsRelAngle(Int_t ip1=0,Int_t ip2=1) const;

  // relate to other objects
  //Double_t DistanceToVertex(AliAODVertex *vtx) // distance to a AliAODVertex
  //Double_t DistanceToTrack(AliAODTrack *trk)   // distance to a AliAODTrack


  // print
  void    Print(Option_t* option = "") const;
  //void    PrintIndices() const {fSecondaryVtx->PrintIndices();}

  // dummy functions for inheritance from AliVirtualParticle
  Double_t E() const 
    {printf("Dummy function; use AliAODRecoDecay::E(UInt_t pdg) instead"); return (Double_t)-999.;}
  Double_t Y() const 
    {printf("Dummy function; use AliAODRecoDecay::Y(UInt_t pdg) instead"); return (Double_t)-999.;}
  Double_t M() const 
    {printf("Dummy function"); return (Double_t)-999.;}

 protected:

  AliAODVertex *fSecondaryVtx;  // decay vertex
  Short_t  fCharge; // charge, use this convention for prongs charges:
                    // if(charge== 0) even-index prongs are +
                    //                odd-index prongs are -
                    // if(charge==+1) even-index prongs are +
                    //                odd-index prongs are -
                    // if(charge==-1) even-index prongs are -
                    //                odd-index prongs are +

  // TEMPORARY, to be removed when we do analysis on AliAODEvent
  Int_t fNProngs;  // number of prongs
  Int_t fNDCA;     // number of dca's
  Int_t fNPID;     // number of PID probabilities
  Double_t *fPx;   //[fNProngs] px of tracks at the vertex [GeV/c]
  Double_t *fPy;   //[fNProngs] py of tracks at the vertex [GeV/c]
  Double_t *fPz;   //[fNProngs] pz of tracks at the vertex [GeV/c]
  Double_t *fd0;   //[fNProngs] rphi impact params w.r.t. Primary Vtx [cm]
  Float_t *fDCA;   //[fNDCA] prong-to-prong DCA [cm]
                   // convention:fDCA[0]=p0p1,fDCA[1]=p0p2,fDCA[2]=p1p2,...
  Double_t *fPID;  //[fNPID] combined pid
                   //  (combined detector response probabilities)
                            
  // TEMPORARY, to be removed when we do analysis on AliAODEvent
  Int_t fEventNumber;
  Int_t fRunNumber;
  // TO BE PUT IN SPECIAL MC CLASS
  //Bool_t   fSignal; // TRUE if signal, FALSE if background (for simulation)
  //Int_t    fEvent;  // number of the event this candidate comes from
  //Int_t  fTrkNum[2]; // numbers of the two decay tracks  
  //Int_t fPdg[2];  // PDG codes of the two tracks (for sim.)
  //Int_t fMum[2];  // PDG codes of the mothers    (for sim.)

  //

  ClassDef(AliAODRecoDecay,1)  // base class for AOD reconstructed decays
};


inline Short_t AliAODRecoDecay::ChargeProng(Int_t ip) const
{
  if(fCharge==0 || fCharge==+1) {
    if(ip%2==0) {
      return (Short_t)1;
    } else {
      return (Short_t)-1;
    }
  } else { // fCharge==-1
    if(ip%2==0) {
      return (Short_t)-1;
    } else {
      return (Short_t)1;
    }
  }
}

inline Double_t AliAODRecoDecay::RadiusSecVtx() const 
{ 
  return TMath::Sqrt(GetSecVtxX()*GetSecVtxX()+GetSecVtxY()*GetSecVtxY());
}

inline void AliAODRecoDecay::GetSecondaryVtx(Double_t vtx[3]) const 
{
  fSecondaryVtx->GetPosition(vtx);
  return;
}

inline Double_t AliAODRecoDecay::Px() const 
{
  Double_t px=0.; 
  for(Int_t i=0;i<GetNProngs();i++) px+=PxProng(i); 
  return px;
}

inline Double_t AliAODRecoDecay::Py() const 
{
  Double_t py=0.; 
  for(Int_t i=0;i<GetNProngs();i++) py+=PyProng(i); 
  return py;
}

inline Double_t AliAODRecoDecay::Pz() const 
{
  Double_t pz=0.; 
  for(Int_t i=0;i<GetNProngs();i++) pz+=PzProng(i); 
  return pz;
}

inline Double_t AliAODRecoDecay::Ct(UInt_t pdg,AliAODVertex *vtx1) const
{
  Double_t v[3];
  vtx1->GetPosition(v);
  return Ct(pdg,v);
}

inline Double_t AliAODRecoDecay::CosPointingAngle(AliAODVertex *vtx1) const
{
  Double_t v[3];
  vtx1->GetPosition(v);
  return CosPointingAngle(v);
}

inline Double_t AliAODRecoDecay::CosPointingAngleXY(AliAODVertex *vtx1) const
{
  Double_t v[3];
  vtx1->GetPosition(v);
  return CosPointingAngleXY(v);
}

inline Double_t AliAODRecoDecay::ImpParXY(AliAODVertex *vtx1) const
{
  Double_t v[3];
  vtx1->GetPosition(v);
  return ImpParXY(v);
}

inline Double_t AliAODRecoDecay::PtProng(Int_t ip) const 
{
  return TMath::Sqrt(PxProng(ip)*PxProng(ip)+PyProng(ip)*PyProng(ip));
}

inline Double_t AliAODRecoDecay::PProng(Int_t ip) const 
{
  return TMath::Sqrt(PtProng(ip)*PtProng(ip)+PzProng(ip)*PzProng(ip));
}

inline Double_t AliAODRecoDecay::QlProngFlightLine(Int_t ip,AliAODVertex *vtx1) const
{
  Double_t v[3];
  vtx1->GetPosition(v);
  return QlProngFlightLine(ip,v);
}

inline Double_t AliAODRecoDecay::QtProngFlightLine(Int_t ip,AliAODVertex *vtx1) const
{
  Double_t v[3];
  vtx1->GetPosition(v);
  return QtProngFlightLine(ip,v);
}

inline void AliAODRecoDecay::SetDCAs(Int_t nDCA,Float_t *dca) 
{
  if(nDCA!=(GetNProngs()*(GetNProngs()-1)/2)) { 
    printf("Wrong number of DCAs, must be nProngs*(nProngs-1)/2");
    return;
  }
  if(fDCA) delete [] fDCA;
  fDCA = new Float_t[nDCA];
  for(Int_t i=0;i<nDCA;i++) 
    fDCA[i] = dca[i]; 
  return;
}

inline void AliAODRecoDecay::SetDCA(Float_t dca) 
{
  Float_t ddca[1]; ddca[0]=dca;
  SetDCAs(1,ddca);
  return;
}

inline void AliAODRecoDecay::SetPID(Int_t nprongs,Double_t *pid) 
{
  if(nprongs!=GetNProngs()) {
    printf("Wrong number of prongs");
    return;
  }
  if(fPID) delete [] fPID;
  fPID = new Double_t[nprongs*5];
  for(Int_t i=0;i<nprongs;i++) 
    for(Int_t j=0;j<5;j++)
      fPID[i*5+j] = pid[i*5+j]; 
  return;
}

inline void AliAODRecoDecay::GetPIDProng(Int_t ip,Double_t *pid) const
{ 
  for(Int_t j=0;j<5;j++)
    pid[j] = fPID[ip*5+j];
  return;
}


#endif
Commit	Line	Data
7de7497b	1	#ifndef ALIAODRECODECAY_H
	2	#define ALIAODRECODECAY_H
	3	/* Copyright(c) 1998-2006, ALICE Experiment at CERN, All rights reserved. *
	4	* See cxx source for full Copyright notice */
	5
	6	//***********************************************************
	7	// Class AliAODRecoDecay
	8	// base class for AOD reconstructed decays
	9	// Author: A.Dainese, andrea.dainese@lnl.infn.it
	10	//***********************************************************
	11
	12	#include <TMath.h>
	13	#include "AliAODVertex.h"
	14	#include "AliVirtualParticle.h"
	15
	16	class AliAODRecoDecay : public AliVirtualParticle {
	17
	18	public:
	19
	20	AliAODRecoDecay();
	21	AliAODRecoDecay(AliAODVertex *vtx2,Int_t nprongs,Short_t charge,
	22	Double_t px,Double_t py,Double_t *pz,
	23	Double_t *d0);
	24	AliAODRecoDecay(AliAODVertex *vtx2,Int_t nprongs,Short_t charge,
	25	Double_t *d0);
	26	virtual ~AliAODRecoDecay();
	27
	28	AliAODRecoDecay(const AliAODRecoDecay& source);
	29	AliAODRecoDecay& operator=(const AliAODRecoDecay& source);
	30
	31
	32	// decay vertex
	33	Double_t GetSecVtxX() const {return fSecondaryVtx->GetX();}
	34	Double_t GetSecVtxY() const {return fSecondaryVtx->GetY();}
	35	Double_t GetSecVtxZ() const {return fSecondaryVtx->GetZ();}
	36	Double_t RadiusSecVtx() const;
	37	void SetSecondaryVtx(AliAODVertex *vtx2) {fSecondaryVtx=vtx2;}
	38	AliAODVertex* GetSecondaryVtx() const {return fSecondaryVtx;}
	39	void GetSecondaryVtx(Double_t vtx[3]) const;
	40	Double_t GetReducedChi2() const {return fSecondaryVtx->GetChi2perNDF();}
	41	Short_t Charge() const {return fCharge;}
	42	Short_t GetCharge() const {return fCharge;}
	43	void SetCharge(Short_t charge=0) {fCharge=charge;}
	44
	45	// PID
	46	void SetPID(Int_t nprongs,Double_t *pid);
	47	Double_t *GetPID() const { return fPID; }
	48	void GetPIDProng(Int_t ip,Double_t *pid) const;
	49	virtual const Double_t *PID() const { return fPID; }
	50
	51	// prong-to-prong DCAs
	52	void SetDCAs(Int_t nDCA,Float_t *dca);
	53	void SetDCA(Float_t dca); // 2 prong
	54	Float_t GetDCA(Int_t i=0) const {return fDCA[i];}
	55
	56	//event and run number
	57	void SetEventRunNumbers(Int_t en,Int_t rn)
	58	{ fEventNumber=en; fRunNumber=rn; return; }
	59	Int_t GetEventNumber() const { return fEventNumber; }
	60	Int_t GetRunNumber() const { return fRunNumber; }
	61
	62	// kinematics & topology
	63	Double_t Px() const;
	64	Double_t Py() const;
65	Double_t Pz() const;
66	Double_t P() const {return TMath::Sqrt(Px()Px()+Py()Py()+Pz()*Pz());}
67	Double_t Pt() const {return TMath::Sqrt(Px()Px()+Py()Py());}
68	Double_t OneOverPt() const {return (Pt() ? 1./Pt() : 0.);}
69	Double_t Phi() const {return TMath::ATan2(Py(),Px());}
70	Double_t Theta() const {return 0.5*TMath::Pi()-TMath::ATan(Pz()/(Pt()+1.e-13));}
71	Double_t Eta() const {return 0.5*TMath::Log((P()+Pz())/(P()-Pz()+1.e-13));}
72	Double_t E(UInt_t pdg) const;
73	Double_t Y(UInt_t pdg) const {return 0.5*TMath::Log((E(pdg)+Pz())/(E(pdg)-Pz()+1.e-13));}
74	Double_t DecayLength(Double_t point[3]) const;
75	Double_t DecayLength(AliAODVertex *vtx1) const
76	{return fSecondaryVtx->DistanceToVertex(vtx1);}
77	Double_t DecayLengthError(AliAODVertex *vtx1) const
78	{return fSecondaryVtx->ErrorDistanceToVertex(vtx1);}
79	Double_t NormalizedDecayLength(AliAODVertex *vtx1) const
80	{return DecayLength(vtx1)/DecayLengthError(vtx1);}
81	Double_t DecayLengthXY(Double_t point[3]) const;
82	Double_t DecayLengthXY(AliAODVertex *vtx1) const
83	{return fSecondaryVtx->DistanceXYToVertex(vtx1);}
84	Double_t DecayLengthXYError(AliAODVertex *vtx1) const
85	{return fSecondaryVtx->ErrorDistanceXYToVertex(vtx1);}
86	Double_t NormalizedDecayLengthXY(AliAODVertex *vtx1) const
87	{return DecayLengthXY(vtx1)/DecayLengthXYError(vtx1);}
88	Double_t Ct(UInt_t pdg,Double_t point[3]) const;
89	Double_t Ct(UInt_t pdg,AliAODVertex *vtx1) const;
90	Double_t CosPointingAngle(Double_t point[3]) const;
91	Double_t CosPointingAngle(AliAODVertex *vtx1) const;
92	Double_t CosPointingAngleXY(Double_t point[3]) const;
93	Double_t CosPointingAngleXY(AliAODVertex *vtx1) const;
94	Double_t CosThetaStar(Int_t ip,UInt_t pdgvtx,UInt_t pdgprong0,UInt_t pdgprong1) const;
95	Double_t InvMass(Int_t npdg,UInt_t *pdg) const;
96	Double_t ImpParXY(Double_t point[3]) const;
97	Double_t ImpParXY(AliAODVertex *vtx1) const;
98
99	// prongs
100	//Int_t GetNProngs() const {return fSecondaryVtx->GetNDaughters();}
101	Int_t GetNProngs() const {return fNProngs;}
102
103	Short_t ChargeProng(Int_t ip) const;
104	Double_t Getd0Prong(Int_t ip) const {return fd0[ip];}
105	Double_t Prodd0d0(Int_t ip1=0,Int_t ip2=0) const {return fd0[ip1]*fd0[ip2];}
106	Double_t PxProng(Int_t ip) const {return fPx[ip];}
107	Double_t PyProng(Int_t ip) const {return fPy[ip];}
108	Double_t PzProng(Int_t ip) const {return fPz[ip];}
109	Double_t PtProng(Int_t ip) const;
110	Double_t PProng(Int_t ip) const;
111	Double_t PhiProng(Int_t ip) const
112	{return TMath::ATan2(PyProng(ip),PxProng(ip));}
113	Double_t ThetaProng(Int_t ip) const
114	{return 0.5*TMath::Pi()-TMath::ATan(PzProng(ip)/(PtProng(ip)+1.e-13));}
115	Double_t EtaProng(Int_t ip) const
116	{return -TMath::Log(TMath::Tan(0.5*ThetaProng(ip)));}
117	Double_t EProng(Int_t ip,UInt_t pdg) const;
118	Double_t YProng(Int_t ip,UInt_t pdg) const
119	{return 0.5*TMath::Log((EProng(ip,pdg)+PzProng(ip))/(EProng(ip,pdg)-PzProng(ip)+1.e-13));}
120	Double_t Alpha() const; // for Armenteros-Podolanski plot (V0's)
121	Double_t QlProng(Int_t ip) const;
122	Double_t QtProng(Int_t ip=0) const; // for Armenteros-Podolanski plot (V0's)
123	Double_t QlProngFlightLine(Int_t ip,Double_t point[3]) const;
124	Double_t QlProngFlightLine(Int_t ip,AliAODVertex *vtx1) const;
125	Double_t QtProngFlightLine(Int_t ip,Double_t point[3]) const;
126	Double_t QtProngFlightLine(Int_t ip,AliAODVertex *vtx1) const;
127	Double_t InvMass2Prongs(Int_t ip1,Int_t ip2,UInt_t pdg1,UInt_t pdg2) const;
128	Double_t ProngsRelAngle(Int_t ip1=0,Int_t ip2=1) const;
129
130	// relate to other objects
131	//Double_t DistanceToVertex(AliAODVertex *vtx) // distance to a AliAODVertex
132	//Double_t DistanceToTrack(AliAODTrack *trk) // distance to a AliAODTrack
133
134
135	// print
136	void Print(Option_t* option = "") const;
137	//void PrintIndices() const {fSecondaryVtx->PrintIndices();}
138
139	// dummy functions for inheritance from AliVirtualParticle
140	Double_t E() const
141	{printf("Dummy function; use AliAODRecoDecay::E(UInt_t pdg) instead"); return (Double_t)-999.;}
142	Double_t Y() const
143	{printf("Dummy function; use AliAODRecoDecay::Y(UInt_t pdg) instead"); return (Double_t)-999.;}
144	Double_t M() const
145	{printf("Dummy function"); return (Double_t)-999.;}
146
147	protected:
148
149	AliAODVertex *fSecondaryVtx; // decay vertex
150	Short_t fCharge; // charge, use this convention for prongs charges:
151	// if(charge== 0) even-index prongs are +
152	// odd-index prongs are -
153	// if(charge==+1) even-index prongs are +
154	// odd-index prongs are -
155	// if(charge==-1) even-index prongs are -
156	// odd-index prongs are +
157
158	// TEMPORARY, to be removed when we do analysis on AliAODEvent
159	Int_t fNProngs; // number of prongs
160	Int_t fNDCA; // number of dca's
161	Int_t fNPID; // number of PID probabilities
162	Double_t *fPx; //[fNProngs] px of tracks at the vertex [GeV/c]
163	Double_t *fPy; //[fNProngs] py of tracks at the vertex [GeV/c]
164	Double_t *fPz; //[fNProngs] pz of tracks at the vertex [GeV/c]
165	Double_t *fd0; //[fNProngs] rphi impact params w.r.t. Primary Vtx [cm]
166	Float_t *fDCA; //[fNDCA] prong-to-prong DCA [cm]
167	// convention:fDCA[0]=p0p1,fDCA[1]=p0p2,fDCA[2]=p1p2,...
168	Double_t *fPID; //[fNPID] combined pid
169	// (combined detector response probabilities)
170
171	// TEMPORARY, to be removed when we do analysis on AliAODEvent
172	Int_t fEventNumber;
173	Int_t fRunNumber;
174	// TO BE PUT IN SPECIAL MC CLASS
175	//Bool_t fSignal; // TRUE if signal, FALSE if background (for simulation)
176	//Int_t fEvent; // number of the event this candidate comes from
177	//Int_t fTrkNum[2]; // numbers of the two decay tracks
178	//Int_t fPdg[2]; // PDG codes of the two tracks (for sim.)
179	//Int_t fMum[2]; // PDG codes of the mothers (for sim.)
180
181	//
182
183	ClassDef(AliAODRecoDecay,1) // base class for AOD reconstructed decays
184	};
185
186
187	inline Short_t AliAODRecoDecay::ChargeProng(Int_t ip) const
188	{
189	if(fCharge==0 \|\| fCharge==+1) {
190	if(ip%2==0) {
191	return (Short_t)1;
192	} else {
193	return (Short_t)-1;
194	}
195	} else { // fCharge==-1
196	if(ip%2==0) {
197	return (Short_t)-1;
198	} else {
199	return (Short_t)1;
200	}
201	}
202	}
203
204	inline Double_t AliAODRecoDecay::RadiusSecVtx() const
205	{
206	return TMath::Sqrt(GetSecVtxX()GetSecVtxX()+GetSecVtxY()GetSecVtxY());
207	}
208
209	inline void AliAODRecoDecay::GetSecondaryVtx(Double_t vtx[3]) const
210	{
211	fSecondaryVtx->GetPosition(vtx);
212	return;
213	}
214
215	inline Double_t AliAODRecoDecay::Px() const
216	{
217	Double_t px=0.;
218	for(Int_t i=0;i<GetNProngs();i++) px+=PxProng(i);
219	return px;
220	}
221
222	inline Double_t AliAODRecoDecay::Py() const
223	{
224	Double_t py=0.;
225	for(Int_t i=0;i<GetNProngs();i++) py+=PyProng(i);
226	return py;
227	}
228
229	inline Double_t AliAODRecoDecay::Pz() const
230	{
231	Double_t pz=0.;
232	for(Int_t i=0;i<GetNProngs();i++) pz+=PzProng(i);
233	return pz;
234	}
235
236	inline Double_t AliAODRecoDecay::Ct(UInt_t pdg,AliAODVertex *vtx1) const
237	{
238	Double_t v[3];
239	vtx1->GetPosition(v);
240	return Ct(pdg,v);
241	}
242
243	inline Double_t AliAODRecoDecay::CosPointingAngle(AliAODVertex *vtx1) const
244	{
245	Double_t v[3];
246	vtx1->GetPosition(v);
247	return CosPointingAngle(v);
248	}
249
250	inline Double_t AliAODRecoDecay::CosPointingAngleXY(AliAODVertex *vtx1) const
251	{
252	Double_t v[3];
253	vtx1->GetPosition(v);
254	return CosPointingAngleXY(v);
255	}
256
257	inline Double_t AliAODRecoDecay::ImpParXY(AliAODVertex *vtx1) const
258	{
259	Double_t v[3];
260	vtx1->GetPosition(v);
261	return ImpParXY(v);
262	}
263
264	inline Double_t AliAODRecoDecay::PtProng(Int_t ip) const
265	{
266	return TMath::Sqrt(PxProng(ip)PxProng(ip)+PyProng(ip)PyProng(ip));
267	}
268
269	inline Double_t AliAODRecoDecay::PProng(Int_t ip) const
270	{
271	return TMath::Sqrt(PtProng(ip)PtProng(ip)+PzProng(ip)PzProng(ip));
272	}
273
274	inline Double_t AliAODRecoDecay::QlProngFlightLine(Int_t ip,AliAODVertex *vtx1) const
275	{
276	Double_t v[3];
277	vtx1->GetPosition(v);
278	return QlProngFlightLine(ip,v);
279	}
280
281	inline Double_t AliAODRecoDecay::QtProngFlightLine(Int_t ip,AliAODVertex *vtx1) const
282	{
283	Double_t v[3];
284	vtx1->GetPosition(v);
285	return QtProngFlightLine(ip,v);
286	}
287
288	inline void AliAODRecoDecay::SetDCAs(Int_t nDCA,Float_t *dca)
289	{
290	if(nDCA!=(GetNProngs()*(GetNProngs()-1)/2)) {
291	printf("Wrong number of DCAs, must be nProngs*(nProngs-1)/2");
292	return;
293	}
294	if(fDCA) delete [] fDCA;
295	fDCA = new Float_t[nDCA];
296	for(Int_t i=0;i<nDCA;i++)
297	fDCA[i] = dca[i];
298	return;
299	}
300
301	inline void AliAODRecoDecay::SetDCA(Float_t dca)
302	{
303	Float_t ddca[1]; ddca[0]=dca;
304	SetDCAs(1,ddca);
305	return;
306	}
307
308	inline void AliAODRecoDecay::SetPID(Int_t nprongs,Double_t *pid)
309	{
310	if(nprongs!=GetNProngs()) {
311	printf("Wrong number of prongs");
312	return;
313	}
314	if(fPID) delete [] fPID;
315	fPID = new Double_t[nprongs*5];
316	for(Int_t i=0;i<nprongs;i++)
317	for(Int_t j=0;j<5;j++)
318	fPID[i5+j] = pid[i5+j];
319	return;
320	}
321
322	inline void AliAODRecoDecay::GetPIDProng(Int_t ip,Double_t *pid) const
323	{
324	for(Int_t j=0;j<5;j++)
325	pid[j] = fPID[ip*5+j];
326	return;
327	}
328
329
330
331	#endif