]>
Commit | Line | Data |
---|---|---|
7986e54e | 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 | **************************************************************************/ | |
15 | // | |
16 | // Class AliHFEV0taginfo | |
17 | // Creates list of tracks with V0 information | |
18 | // | |
19 | // Author: | |
20 | // Jan Wagner <J.Wagner@gsi.de> | |
21 | // | |
22 | ||
23 | ||
24 | ||
25 | ||
26 | #include <iostream> | |
27 | #include <TClass.h> | |
28 | #include <TList.h> | |
29 | #include <TMath.h> | |
30 | ||
31 | ||
32 | #include "AliLog.h" | |
33 | #include "AliESDEvent.h" | |
34 | #include "AliESDv0.h" | |
35 | ||
36 | #include "AliHFEV0taginfo.h" | |
37 | ||
38 | ||
39 | ClassImp(AliHFEV0taginfo) | |
40 | ClassImp(AliHFEV0taginfo::AliHFEV0tag) | |
41 | ||
42 | //___________________________________________________________________ | |
43 | AliHFEV0taginfo::AliHFEV0taginfo(): | |
44 | TNamed(), | |
45 | fTaggedTracks(NULL), | |
46 | fV0finder(NULL) | |
47 | { | |
48 | // | |
49 | // default constructor | |
50 | // | |
51 | } | |
52 | //___________________________________________________________________ | |
53 | AliHFEV0taginfo::AliHFEV0taginfo(const char* name): | |
54 | TNamed(name, ""), | |
55 | fTaggedTracks(NULL), | |
56 | fV0finder(NULL) | |
57 | { | |
58 | // | |
59 | // constructor | |
60 | // | |
61 | ||
62 | fTaggedTracks = new TList(); | |
63 | if(fTaggedTracks){ | |
64 | fTaggedTracks->SetOwner(); | |
65 | } | |
66 | fV0finder = new AliESDv0KineCuts(); | |
67 | } | |
68 | //___________________________________________________________________ | |
69 | AliHFEV0taginfo::~AliHFEV0taginfo(){ | |
70 | ||
71 | // | |
72 | // Destructor | |
73 | // | |
74 | delete fTaggedTracks; | |
75 | delete fV0finder; | |
76 | AliDebug(6, "DESTRUCTOR"); | |
77 | } | |
78 | ||
79 | //________________________________________________________________________________ | |
80 | // loops over V0s in event and fills fTaggedTracks with V0 tracks | |
81 | void AliHFEV0taginfo::TagV0Tracks(AliESDEvent *fEvent){ | |
82 | ||
83 | if (!fEvent) return; | |
84 | ||
85 | const Int_t nTracks = fEvent->GetNumberOfTracks(); | |
86 | if(nTracks < 2) return; | |
87 | ||
88 | const Int_t nV0s = fEvent->GetNumberOfV0s(); | |
89 | if(nV0s < 1) return; | |
90 | AliDebug(3,Form("%d V0s found!",nV0s)); | |
91 | ||
92 | fV0finder->SetEvent(fEvent); | |
93 | ||
94 | for(Int_t i=0; i<nV0s; ++i){ | |
95 | Int_t pdgP = 0; | |
96 | Int_t pdgN = 0; | |
97 | AliESDv0 *fV0 = fEvent->GetV0(i); | |
98 | if(!fV0) continue; | |
99 | if(fV0finder->ProcessV0(fV0,pdgP,pdgN)){ | |
100 | AliDebug(5,Form("V0 has: pos pdg: %d, neg pdg: %d",pdgP,pdgN)); | |
101 | AddTrack(fV0->GetPindex(),pdgP); | |
102 | AddTrack(fV0->GetNindex(),pdgN); | |
103 | } | |
104 | } | |
105 | } | |
106 | ||
107 | //________________________________________________________________________________ | |
108 | //Translates the pdg code to AliPID enum and adds track to tagged list | |
109 | void AliHFEV0taginfo::AddTrack(Int_t TrackID, Int_t pdgCode){ | |
110 | ||
111 | if(TrackID<0) return; | |
112 | AliPID::EParticleType Pinfo; | |
113 | switch (TMath::Abs(pdgCode)){ | |
114 | case 11: | |
115 | Pinfo = AliPID::kElectron; | |
116 | break; | |
117 | case 211: | |
118 | Pinfo = AliPID::kPion; | |
119 | break; | |
120 | case 2212: | |
121 | Pinfo = AliPID::kProton; | |
122 | break; | |
123 | default: | |
124 | return; | |
125 | } | |
126 | fTaggedTracks->Add(new AliHFEV0tag(TrackID, Pinfo)); | |
127 | AliDebug(4,Form("Added new Track ID: %d with PID: %d, #entry: %d",TrackID, Pinfo, fTaggedTracks->GetEntries())); | |
128 | } | |
129 | ||
130 | ||
131 | //________________________________________________________________________________ | |
132 | //check for V0 information from track ID | |
133 | //returns AliPID::kUnknown if track ID not found | |
134 | AliPID::EParticleType AliHFEV0taginfo::GetV0Info(Int_t trackID){ | |
135 | ||
136 | AliHFEV0tag test(trackID, AliPID::kUnknown); | |
137 | AliHFEV0tag *result = dynamic_cast<AliHFEV0tag *>(fTaggedTracks->FindObject(&test)); | |
138 | if(!result){ | |
139 | AliDebug(6, Form("Could not find track ID %d", trackID)); | |
140 | return AliPID::kUnknown; | |
141 | } | |
142 | return result->GetPinfo(); | |
143 | } | |
144 | ||
145 | //________________________________________________________________________________ | |
146 | //resets the fTaggedTracks TList | |
147 | void AliHFEV0taginfo::Reset(){ | |
148 | fTaggedTracks->Delete(); | |
149 | } | |
150 | ||
151 | ||
152 | //___________________________________________________________________ | |
153 | AliHFEV0taginfo::AliHFEV0tag::AliHFEV0tag(): | |
154 | TObject(), | |
155 | fTrackID(0), | |
156 | fPinfo(AliPID::kUnknown) | |
157 | { | |
158 | // default constructor | |
159 | } | |
160 | //___________________________________________________________________ | |
161 | AliHFEV0taginfo::AliHFEV0tag::AliHFEV0tag(Int_t TrackID, AliPID::EParticleType Pinfo): | |
162 | TObject(), | |
163 | fTrackID(TrackID), | |
164 | fPinfo(Pinfo) | |
165 | { | |
166 | } | |
167 | ||
168 | //____________________________________________________________ | |
169 | AliHFEV0taginfo::AliHFEV0tag::AliHFEV0tag(const AliHFEV0tag &ref): | |
170 | TObject(ref), | |
171 | fTrackID(ref.fTrackID), | |
172 | fPinfo(ref.fPinfo) | |
173 | { | |
174 | // Copy constructor | |
175 | } | |
176 | ||
177 | //____________________________________________________________ | |
178 | AliHFEV0taginfo::AliHFEV0tag &AliHFEV0taginfo::AliHFEV0tag::operator=(const AliHFEV0tag &ref){ | |
179 | // Assignment operator | |
180 | if(this != &ref){ | |
181 | TObject::operator=(ref); | |
182 | ||
183 | fTrackID = ref.fTrackID; | |
184 | fPinfo = ref.fPinfo; | |
185 | } | |
186 | return *this; | |
187 | } | |
188 | ||
189 | //___________________________________________________________________ | |
190 | AliHFEV0taginfo::AliHFEV0tag::~AliHFEV0tag(){ | |
191 | // | |
192 | // Destructor | |
193 | // | |
194 | AliDebug(6, "DESTRUCTOR"); | |
195 | } | |
196 | ||
197 | //Set track ID and particle info | |
198 | //___________________________________________________________________ | |
199 | void AliHFEV0taginfo::AliHFEV0tag::SetTrack(const Int_t trackID, const AliPID::EParticleType Pinfo){ | |
200 | fTrackID = trackID; | |
201 | fPinfo = Pinfo; | |
202 | } | |
203 | //____________________________________________________________ | |
204 | Bool_t AliHFEV0taginfo::AliHFEV0tag::IsEqual(const TObject *ref) const { | |
205 | // | |
206 | // Check for equality of track ID | |
207 | // | |
208 | const AliHFEV0tag *refObj = dynamic_cast<const AliHFEV0tag *>(ref); | |
209 | if(!refObj) return kFALSE; | |
210 | return (fTrackID == refObj->GetTrackID()); | |
211 | } | |
212 | //____________________________________________________________ | |
213 | Int_t AliHFEV0taginfo::AliHFEV0tag::Compare(const TObject *ref) const{ | |
214 | // | |
215 | // Compares two objects | |
216 | // Order: | |
217 | // First compare track ID then particle info | |
218 | // | |
219 | const AliHFEV0tag *refObj = dynamic_cast<const AliHFEV0tag *>(ref); | |
220 | if(fTrackID < refObj->GetTrackID()) return -1; | |
221 | else if(fTrackID > refObj->GetTrackID()) return 1; | |
222 | else{ | |
223 | if(fPinfo < refObj->GetPinfo()) return -1; | |
224 | else if(fPinfo > refObj->GetPinfo()) return 1; | |
225 | else return 0; | |
226 | } | |
227 | } | |
228 | ||
229 |