1 /**************************************************************************
2 * Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
16 //-------------------------------------------------------------------------
17 // Analysis Oriented Data (AOD) V0 vertex class
18 // Authors: B.Hippolyte, IReS, hippolyt@in2p3.fr
19 // G.Van Buren, BNL, gene@bnl.gov (original STAR MuDsts)
20 //-------------------------------------------------------------------------
23 #include "AliAODTrack.h"
27 AliAODv0::AliAODv0() :
29 fDcaV0ToPrimVertex(999),
32 //--------------------------------------------------------------------
33 // Default constructor
34 //--------------------------------------------------------------------
38 fNPID = 0; // used to be 2!
40 fDCA = new Double_t[fNDCA];
43 fPx = new Double_t[GetNProngs()];
44 fPy = new Double_t[GetNProngs()];
45 fPz = new Double_t[GetNProngs()];
54 fd0 = new Double_t[GetNProngs()];
59 AliAODv0::AliAODv0(AliAODVertex* rAODVertex, Double_t rDcaV0Daughters, Double_t rDcaV0ToPrimVertex,
60 const Double_t *rMomPos, const Double_t *rMomNeg, Double_t *rDcaDaughterToPrimVertex) :
61 AliAODRecoDecay(rAODVertex,2,0,rDcaDaughterToPrimVertex),
62 fDcaV0ToPrimVertex(rDcaV0ToPrimVertex),
65 //--------------------------------------------------------------------
66 // Constructor via setting each data member
67 //--------------------------------------------------------------------
71 fNPID = 0; // used to be 2!
73 fDCA = new Double_t[fNDCA];
75 fDCA[0] = rDcaV0Daughters;
76 fDcaV0ToPrimVertex = rDcaV0ToPrimVertex;
78 fPx = new Double_t[GetNProngs()];
79 fPy = new Double_t[GetNProngs()];
80 fPz = new Double_t[GetNProngs()];
91 AliAODv0::AliAODv0(const AliAODv0& rAliAODv0) :
92 AliAODRecoDecay(rAliAODv0),
93 fDcaV0ToPrimVertex(rAliAODv0.fDcaV0ToPrimVertex),
94 fOnFlyStatus(rAliAODv0.fOnFlyStatus)
96 //--------------------------------------------------------------------
98 //--------------------------------------------------------------------
101 AliAODv0& AliAODv0::operator=(const AliAODv0& rAliAODv0){
102 //--------------------------------------------------------------------
103 // Assignment overload
104 //--------------------------------------------------------------------
105 if(this!=&rAliAODv0) {
106 AliAODRecoDecay::operator=(rAliAODv0);
107 this->fDcaV0ToPrimVertex = rAliAODv0.fDcaV0ToPrimVertex ;
108 this->fOnFlyStatus = rAliAODv0.fOnFlyStatus;
113 AliAODv0::~AliAODv0(){
114 //--------------------------------------------------------------------
116 //--------------------------------------------------------------------
119 void AliAODv0::Fill(AliAODVertex *rAODVertex, Double_t rDcaV0Daughters, Double_t rDcaV0ToPrimVertex,
120 const Double_t *rMomPos, const Double_t *rMomNeg, const Double_t *rDcaDaughterToPrimVertex){
121 //--------------------------------------------------------------------
122 // Filling with all needed info
123 //--------------------------------------------------------------------
124 this->SetSecondaryVtx(rAODVertex);
126 fDCA[0] = rDcaV0Daughters;
127 fDcaV0ToPrimVertex = rDcaV0ToPrimVertex;
129 fPx[0] = rMomPos[0] ;
137 fd0[0] = rDcaDaughterToPrimVertex[0];
138 fd0[1] = rDcaDaughterToPrimVertex[1];
141 void AliAODv0::ResetV0(){
142 //--------------------------------------------------------------------
143 // Resetting all the info
144 //--------------------------------------------------------------------
145 GetSecondaryVtx()->SetChi2perNDF(999);
146 GetSecondaryVtx()->RemoveCovMatrix();
147 GetSecondaryVtx()->RemoveDaughters();
148 GetSecondaryVtx()->SetParent((TObject*) 0x0);
149 GetSecondaryVtx()->SetID(-1);
150 GetSecondaryVtx()->SetPosition(999,999,999);
151 GetSecondaryVtx()->SetType(AliAODVertex::kUndef);
154 fDcaV0ToPrimVertex = 999;
168 Short_t AliAODv0::GetPosID() const {
169 AliAODTrack *posTrack = (AliAODTrack *) (this->GetSecondaryVtx()->GetDaughter(0));
170 Short_t posID = posTrack->GetID();
174 Short_t AliAODv0::GetNegID() const {
175 AliAODTrack *negTrack = (AliAODTrack *) (this->GetSecondaryVtx()->GetDaughter(1));
176 Short_t negID = negTrack->GetID();
180 void AliAODv0::Print(Option_t* /*option*/) const {
182 // Print some information
184 AliAODRecoDecay::Print();
185 printf("AliAODv0: invariant mass (k0s %.6f, lambda %.6f, anti-lambda %.6f) \n",MassK0Short(),MassLambda(),MassAntiLambda());
186 printf("AliAODv0: dca (v0d %.6f, v0tpv %.6f, postpv %.6f, negtpv %.6f ) \n",DcaV0Daughters(),DcaV0ToPrimVertex(),DcaPosToPrimVertex(),DcaNegToPrimVertex());
187 printf("AliAODv0: mom (ptot2 %.6f, pt2 %.6f, rapk0 %.6f, rapla %.6f ) \n",Ptot2V0(),Pt2V0(),RapK0Short(),RapLambda());
188 printf("AliAODv0: cin (mpav0 %.6f, mnav0 %.6f, alpha %.6f, ptarm %.6f ) \n",MomPosAlongV0(),MomNegAlongV0(),AlphaV0(),PtArmV0());
189 printf("AliAODv0: nrg (eppro %.6f, enpro %.6f, eppio %.6f, enpio %.6f ) \n",EPosProton(),ENegProton(),EPosPion(),ENegPion());