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ae982df3 | 1 | //******************************************************************** |
2 | // Example of the reconstruction that generates the ESD | |
3 | // Input files: | |
c630aafd | 4 | // a) file containing the ITS clusters |
ae982df3 | 5 | // (the AliITSFindClustersV2.C macro can be used to generate it) |
c630aafd | 6 | // b) file containing the TPC clusters |
7 | // (the AliTPCFindClusters.C macro can be used to generate it) | |
8 | // c) file containing the TRD clusters | |
9 | // (the AliTRDdigits2cluster.C macro can be used to generate it) | |
10 | // d) file containing the TOF digits | |
11 | // (the AliTOFSDigits2Digits.C macro can be used to generate it) | |
ae982df3 | 12 | // Ouput file: |
13 | // AliESDs.root containing the ESD events | |
14 | // | |
15 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch | |
16 | //******************************************************************** | |
17 | ||
c630aafd | 18 | #if !defined(__CINT__) || defined(__MAKECINT__) |
ae982df3 | 19 | #include <Riostream.h> |
20 | #include "TFile.h" | |
c630aafd | 21 | #include "TSystem.h" |
ae982df3 | 22 | #include "TStopwatch.h" |
873f1f73 | 23 | #include "TArrayF.h" |
c630aafd | 24 | |
25 | #include "AliMagF.h" | |
26 | #include "AliRun.h" | |
27 | #include "AliRunLoader.h" | |
28 | #include "AliLoader.h" | |
873f1f73 | 29 | #include "AliHeader.h" |
30 | #include "AliGenEventHeader.h" | |
ae982df3 | 31 | |
32 | #include "AliESD.h" | |
8c6a71ab | 33 | #include "AliESDpid.h" |
c630aafd | 34 | |
35 | #include "AliITS.h" | |
ae982df3 | 36 | #include "AliITSgeom.h" |
37 | #include "AliITStrackerV2.h" | |
e23730c7 | 38 | #include "AliV0vertexer.h" |
39 | #include "AliCascadeVertexer.h" | |
c630aafd | 40 | #include "AliITSpidESD.h" |
41 | #include "AliITSLoader.h" | |
42 | ||
43 | #include "AliTPCParam.h" | |
44 | #include "AliTPCtracker.h" | |
45 | #include "AliTPCpidESD.h" | |
46 | #include "AliTPCLoader.h" | |
47 | ||
79e94bf8 | 48 | #include "AliTRDtracker.h" |
49 | #include "AliTRDPartID.h" | |
c630aafd | 50 | |
51 | #include "AliTOFpidESD.h" | |
8c29135e | 52 | #include "AliTOF.h" |
53 | #include "AliTOFGeometry.h" | |
ae982df3 | 54 | #endif |
55 | ||
c630aafd | 56 | extern AliRun *gAlice; |
57 | extern TFile *gFile; | |
58 | ||
a6efa2c6 | 59 | Int_t AliESDtest(Int_t nev=1,Int_t run=0) { |
c630aafd | 60 | |
61 | /**** Initialization of the NewIO *******/ | |
79e94bf8 | 62 | |
c630aafd | 63 | if (gAlice) { |
64 | delete gAlice->GetRunLoader(); | |
65 | delete gAlice; | |
66 | gAlice=0; | |
67 | } | |
68 | ||
c630aafd | 69 | AliRunLoader *rl = AliRunLoader::Open("galice.root"); |
70 | if (rl == 0x0) { | |
71 | cerr<<"Can not open session"<<endl; | |
72 | return 1; | |
73 | } | |
74 | Int_t retval = rl->LoadgAlice(); | |
75 | if (retval) { | |
76 | cerr<<"AliESDtest.C : LoadgAlice returned error"<<endl; | |
77 | delete rl; | |
78 | return 1; | |
79 | } | |
80 | retval = rl->LoadHeader(); | |
81 | if (retval) { | |
82 | cerr<<"AliESDtest.C : LoadHeader returned error"<<endl; | |
83 | delete rl; | |
ae982df3 | 84 | return 2; |
85 | } | |
c630aafd | 86 | gAlice=rl->GetAliRun(); |
87 | ||
ae982df3 | 88 | |
c630aafd | 89 | AliKalmanTrack::SetConvConst( |
90 | 1000/0.299792458/gAlice->Field()->SolenoidField() | |
91 | ); | |
ae982df3 | 92 | |
93 | ||
c630aafd | 94 | /**** The ITS corner ********************/ |
95 | ||
96 | AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader"); | |
97 | if (itsl == 0x0) { | |
98 | cerr<<"AliESDtest.C : Can not get the ITS loader"<<endl; | |
99 | return 3; | |
100 | } | |
101 | itsl->LoadRecPoints("read"); | |
102 | ||
103 | AliITS *dITS = (AliITS*)gAlice->GetDetector("ITS"); | |
104 | if (!dITS) { | |
105 | cerr<<"AliESDtest.C : Can not find the ITS detector !"<<endl; | |
ae982df3 | 106 | return 4; |
107 | } | |
c630aafd | 108 | AliITSgeom *geom = dITS->GetITSgeom(); |
ae982df3 | 109 | |
110 | //An instance of the ITS tracker | |
111 | AliITStrackerV2 itsTracker(geom); | |
8c6a71ab | 112 | |
113 | //An instance of the ITS PID maker | |
431be10d | 114 | Double_t parITS[]={35.5,0.11,10.}; |
8c6a71ab | 115 | AliITSpidESD itsPID(parITS); |
79e94bf8 | 116 | |
e23730c7 | 117 | //An instance of the V0 finder |
118 | Double_t cuts[]={33, // max. allowed chi2 | |
119 | 0.16,// min. allowed negative daughter's impact parameter | |
120 | 0.05,// min. allowed positive daughter's impact parameter | |
121 | 0.080,// max. allowed DCA between the daughter tracks | |
122 | 0.998,// max. allowed cosine of V0's pointing angle | |
123 | 0.9, // min. radius of the fiducial volume | |
124 | 2.9 // max. radius of the fiducial volume | |
125 | }; | |
126 | AliV0vertexer vtxer(cuts); | |
127 | ||
128 | Double_t cts[]={33., // max. allowed chi2 | |
129 | 0.05, // min. allowed V0 impact parameter | |
130 | 0.008, // window around the Lambda mass | |
131 | 0.035, // min. allowed bachelor's impact parameter | |
132 | 0.10, // max. allowed DCA between a V0 and a track | |
133 | 0.9985, //max. allowed cosine of the cascade pointing angle | |
134 | 0.9, // min. radius of the fiducial volume | |
135 | 2.9 // max. radius of the fiducial volume | |
136 | }; | |
137 | AliCascadeVertexer cvtxer=AliCascadeVertexer(cts); | |
c630aafd | 138 | |
139 | /**** The TPC corner ********************/ | |
140 | ||
141 | AliTPCLoader* tpcl = (AliTPCLoader*)rl->GetLoader("TPCLoader"); | |
142 | if (tpcl == 0x0) { | |
143 | cerr<<"AliESDtest.C : can not get the TPC loader"<<endl; | |
144 | return 5; | |
145 | } | |
146 | tpcl->LoadRecPoints("read"); | |
147 | ||
148 | rl->CdGAFile(); | |
149 | AliTPCParam *par=(AliTPCParam *)gDirectory->Get("75x40_100x60_150x60"); | |
150 | if (!par) { | |
151 | cerr<<"TPC parameters have not been found !\n"; | |
79e94bf8 | 152 | return 6; |
153 | } | |
c630aafd | 154 | |
155 | //An instance of the TPC tracker | |
156 | AliTPCtracker tpcTracker(par); | |
157 | ||
158 | //An instance of the TPC PID maker | |
431be10d | 159 | Double_t parTPC[]={45.0,0.08,10.}; |
c630aafd | 160 | AliTPCpidESD tpcPID(parTPC); |
161 | ||
162 | ||
163 | /**** The TRD corner ********************/ | |
164 | ||
165 | AliLoader* trdl = rl->GetLoader("TRDLoader"); | |
166 | if (trdl == 0x0) { | |
167 | cerr<<"AliESDtest.C : can not get the TRD loader"<<endl; | |
168 | return 5; | |
169 | } | |
170 | trdl->LoadRecPoints("read"); | |
79e94bf8 | 171 | |
172 | //An instance of the TRD tracker | |
c630aafd | 173 | rl->CdGAFile(); |
174 | AliTRDtracker trdTracker(gFile); //galice.root file | |
79e94bf8 | 175 | |
c630aafd | 176 | /* |
79e94bf8 | 177 | //An instance of the TRD PID maker |
c630aafd | 178 | TFile* pidFile = TFile::Open("pid.root"); |
179 | if (!pidFile->IsOpen()) { | |
180 | cerr << "Can't get pid.root !\n"; | |
181 | return 7; | |
182 | } | |
183 | AliTRDPartID* trdPID = (AliTRDPartID*) pidFile->Get("AliTRDPartID"); | |
184 | if (!trdPID) { | |
185 | cerr << "Can't get PID object !\n"; | |
186 | return 8; | |
187 | } | |
188 | */ | |
189 | ||
190 | ||
191 | /**** The TOF corner ********************/ | |
8c29135e | 192 | AliTOF *dTOF = (AliTOF*)gAlice->GetDetector("TOF"); |
193 | if (!dTOF) { | |
194 | cerr<<"AliESDtest.C : Can not find the TOF detector !"<<endl; | |
195 | return 4; | |
196 | } | |
197 | AliTOFGeometry *tofGeo = dTOF->GetGeometry(); | |
198 | if (!tofGeo) { | |
199 | cerr<<"AliESDtest.C : Can not find the TOF geometry !"<<endl; | |
200 | return 4; | |
201 | } | |
c630aafd | 202 | |
203 | AliLoader* tofl = rl->GetLoader("TOFLoader"); | |
204 | if (tofl == 0x0) { | |
205 | cerr<<"AliESDtest.C : can not get the TOF loader"<<endl; | |
206 | return 5; | |
207 | } | |
208 | tofl->LoadDigits("read"); | |
209 | ||
c630aafd | 210 | //Instance of the TOF PID maker |
211 | Double_t parTOF[]={130.,5.}; | |
212 | AliTOFpidESD tofPID(parTOF); | |
213 | ||
214 | ||
215 | //rl->UnloadgAlice(); | |
216 | ||
79e94bf8 | 217 | |
218 | TFile *ef=TFile::Open("AliESDs.root","RECREATE"); | |
ae982df3 | 219 | if (!ef->IsOpen()) {cerr<<"Can't AliESDs.root !\n"; return 1;} |
220 | ||
221 | TStopwatch timer; | |
222 | Int_t rc=0; | |
c630aafd | 223 | if (nev>rl->GetNumberOfEvents()) nev=rl->GetNumberOfEvents(); |
ae982df3 | 224 | //The loop over events |
225 | for (Int_t i=0; i<nev; i++) { | |
226 | cerr<<"\n\nProcessing event number : "<<i<<endl; | |
227 | AliESD *event=new AliESD(); | |
a6efa2c6 | 228 | event->SetRunNumber(run); |
229 | event->SetEventNumber(i); | |
a866ac60 | 230 | event->SetMagneticField(gAlice->Field()->SolenoidField()); |
231 | ||
c630aafd | 232 | rl->GetEvent(i); |
233 | ||
873f1f73 | 234 | //***** Primary vertex reconstruction (MC vertex position, for the moment) |
235 | TArrayF v(3); | |
236 | rl->GetHeader()->GenEventHeader()->PrimaryVertex(v); | |
237 | Double_t vtx[3]={v[0],v[1],v[2]}; | |
238 | Double_t cvtx[6]={ | |
239 | 0.005, | |
240 | 0.000, 0.005, | |
241 | 0.000, 0.000, 0.010 | |
242 | }; | |
243 | event->SetVertex(vtx,cvtx); | |
244 | cvtx[1]=cvtx[0]; cvtx[2]=cvtx[5]; //trackers use only the diag.elements | |
bb2ceb1f | 245 | |
246 | //***** Initial path towards the primary vertex | |
873f1f73 | 247 | tpcTracker.SetVertex(vtx,cvtx); |
c630aafd | 248 | TTree *tpcTree=tpcl->TreeR(); |
249 | if (!tpcTree) { | |
250 | cerr<<"Can't get the TPC cluster tree !\n"; | |
251 | return 4; | |
252 | } | |
253 | tpcTracker.LoadClusters(tpcTree); | |
ae982df3 | 254 | rc+=tpcTracker.Clusters2Tracks(event); |
f0ab2c5f | 255 | tpcPID.MakePID(event); // preliminary PID |
256 | AliESDpid::MakePID(event); // for the ITS tracker | |
ae982df3 | 257 | |
873f1f73 | 258 | itsTracker.SetVertex(vtx,cvtx); |
c630aafd | 259 | TTree *itsTree=itsl->TreeR(); |
260 | if (!itsTree) { | |
bb2ceb1f | 261 | cerr<<"Can't get the ITS cluster tree !\n"; |
c630aafd | 262 | return 4; |
263 | } | |
264 | itsTracker.LoadClusters(itsTree); | |
ae982df3 | 265 | rc+=itsTracker.Clusters2Tracks(event); |
266 | ||
e23730c7 | 267 | |
bb2ceb1f | 268 | //***** Back propagation towards the outer barrel detectors |
ae982df3 | 269 | rc+=itsTracker.PropagateBack(event); |
ae982df3 | 270 | |
271 | rc+=tpcTracker.PropagateBack(event); | |
8c6a71ab | 272 | |
c630aafd | 273 | TTree *trdTree=trdl->TreeR(); |
274 | if (!trdTree) { | |
bb2ceb1f | 275 | cerr<<"Can't get the TRD cluster tree !\n"; |
c630aafd | 276 | return 4; |
277 | } | |
278 | trdTracker.LoadClusters(trdTree); | |
79e94bf8 | 279 | rc+=trdTracker.PropagateBack(event); |
431be10d | 280 | |
c630aafd | 281 | /* |
79e94bf8 | 282 | for (Int_t iTrack = 0; iTrack < event->GetNumberOfTracks(); iTrack++) { |
283 | AliESDtrack* track = event->GetTrack(iTrack); | |
284 | trdPID->MakePID(track); | |
285 | } | |
c630aafd | 286 | */ |
431be10d | 287 | |
c630aafd | 288 | TTree *tofTree=tofl->TreeD(); |
289 | if (!tofTree) { | |
290 | cerr<<"Can't get the TOF cluster tree !\n"; | |
291 | return 4; | |
292 | } | |
8c29135e | 293 | tofPID.LoadClusters(tofTree,tofGeo); |
c630aafd | 294 | tofPID.MakePID(event); |
295 | tofPID.UnloadClusters(); | |
296 | ||
79e94bf8 | 297 | |
bb2ceb1f | 298 | //***** Now the final refit at the primary vertex... |
299 | rc+=trdTracker.RefitInward(event); | |
300 | trdTracker.UnloadClusters(); | |
301 | ||
302 | rc+=tpcTracker.RefitInward(event); | |
303 | tpcTracker.UnloadClusters(); | |
431be10d | 304 | tpcPID.MakePID(event); |
bb2ceb1f | 305 | |
306 | rc+=itsTracker.RefitInward(event); | |
307 | itsTracker.UnloadClusters(); | |
431be10d | 308 | itsPID.MakePID(event); |
bb2ceb1f | 309 | |
310 | ||
431be10d | 311 | //***** Here is the combined PID |
312 | AliESDpid::MakePID(event); | |
313 | ||
bb2ceb1f | 314 | |
315 | //***** Hyperon reconstruction | |
873f1f73 | 316 | vtxer.SetVertex(vtx); |
bb2ceb1f | 317 | rc+=vtxer.Tracks2V0vertices(event); // V0 finding |
318 | rc+=cvtxer.V0sTracks2CascadeVertices(event); // cascade finding | |
319 | ||
320 | ||
321 | ||
322 | //***** Some final manipulations with this event | |
ae982df3 | 323 | if (rc==0) { |
324 | Char_t ename[100]; | |
325 | sprintf(ename,"%d",i); | |
79e94bf8 | 326 | ef->cd(); |
ae982df3 | 327 | if (!event->Write(ename)) rc++; |
328 | } | |
329 | if (rc) { | |
330 | cerr<<"Something bad happened...\n"; | |
331 | } | |
332 | delete event; | |
333 | } | |
334 | timer.Stop(); timer.Print(); | |
335 | ||
c630aafd | 336 | //pidFile->Close(); |
337 | ||
ae982df3 | 338 | delete par; |
c630aafd | 339 | |
ae982df3 | 340 | ef->Close(); |
341 | ||
c630aafd | 342 | delete rl; |
343 | ||
ae982df3 | 344 | return rc; |
345 | } |