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1b446896 | 1 | #include "AliHBTReaderTPC.h" |
3f745d47 | 2 | //______________________________________________ |
3 | // | |
4 | // class AliHBTReaderTPC | |
5 | // | |
c0cebee1 | 6 | // reader for TPC tracks |
7 | // needs galice.root | |
8 | // just to shut up coding conventions checker | |
9 | // | |
3f745d47 | 10 | // more info: http://aliweb.cern.ch/people/skowron/analyzer/index.html |
11 | // Piotr.Skowronski@cern.ch | |
12 | // | |
13 | /////////////////////////////////////////////////////////////////////////// | |
1b446896 | 14 | #include <TTree.h> |
16701d1b | 15 | #include <TParticle.h> |
bfb09ece | 16 | #include <TH1.h> |
1b446896 | 17 | |
bed069a4 | 18 | |
16701d1b | 19 | #include <AliRun.h> |
88cb7938 | 20 | #include <AliLoader.h> |
21 | #include <AliStack.h> | |
16701d1b | 22 | #include <AliMagF.h> |
1b446896 | 23 | #include <AliTPCtrack.h> |
bed069a4 | 24 | #include <AliTPCLoader.h> |
1b446896 | 25 | |
1b446896 | 26 | #include "AliHBTEvent.h" |
27 | #include "AliHBTParticle.h" | |
f5de2f09 | 28 | #include "AliHBTTrackPoints.h" |
66d1d1a4 | 29 | #include "AliHBTClusterMap.h" |
bfb09ece | 30 | |
31 | ||
1b446896 | 32 | ClassImp(AliHBTReaderTPC) |
3f745d47 | 33 | |
bed069a4 | 34 | AliHBTReaderTPC::AliHBTReaderTPC(): |
35 | fFileName("galice.root"), | |
36 | fRunLoader(0x0), | |
37 | fTPCLoader(0x0), | |
38 | fMagneticField(0.0), | |
3f745d47 | 39 | fUseMagFFromRun(kTRUE), |
f5de2f09 | 40 | fNTrackPoints(0), |
41 | fdR(0.0), | |
66d1d1a4 | 42 | fClusterMap(kFALSE), |
3f745d47 | 43 | fNClustMin(0), |
f5de2f09 | 44 | fNClustMax(150), |
3f745d47 | 45 | fNChi2PerClustMin(0.0), |
46 | fNChi2PerClustMax(10e5), | |
f5de2f09 | 47 | fC00Min(0.0), |
48 | fC00Max(10e5), | |
49 | fC11Min(0.0), | |
50 | fC11Max(10e5), | |
51 | fC22Min(0.0), | |
52 | fC22Max(10e5), | |
53 | fC33Min(0.0), | |
54 | fC33Max(10e5), | |
3f745d47 | 55 | fC44Min(0.0), |
56 | fC44Max(10e5) | |
88cb7938 | 57 | { |
f5de2f09 | 58 | //constructor |
88cb7938 | 59 | |
88cb7938 | 60 | } |
f5de2f09 | 61 | /********************************************************************/ |
98295f4b | 62 | |
bed069a4 | 63 | AliHBTReaderTPC::AliHBTReaderTPC(const Char_t* galicefilename): |
64 | fFileName(galicefilename), | |
65 | fRunLoader(0x0), | |
66 | fTPCLoader(0x0), | |
67 | fMagneticField(0.0), | |
3f745d47 | 68 | fUseMagFFromRun(kTRUE), |
f5de2f09 | 69 | fNTrackPoints(0), |
70 | fdR(0.0), | |
3f745d47 | 71 | fNClustMin(0), |
f5de2f09 | 72 | fNClustMax(150), |
3f745d47 | 73 | fNChi2PerClustMin(0.0), |
74 | fNChi2PerClustMax(10e5), | |
f5de2f09 | 75 | fC00Min(0.0), |
76 | fC00Max(10e5), | |
77 | fC11Min(0.0), | |
78 | fC11Max(10e5), | |
79 | fC22Min(0.0), | |
80 | fC22Max(10e5), | |
81 | fC33Min(0.0), | |
82 | fC33Max(10e5), | |
3f745d47 | 83 | fC44Min(0.0), |
84 | fC44Max(10e5) | |
1b446896 | 85 | { |
16701d1b | 86 | //constructor, |
1b446896 | 87 | //Defaults: |
16701d1b | 88 | } |
89 | /********************************************************************/ | |
f5de2f09 | 90 | |
88cb7938 | 91 | AliHBTReaderTPC::AliHBTReaderTPC(TObjArray* dirs, const Char_t* galicefilename): |
bed069a4 | 92 | AliHBTReader(dirs), |
93 | fFileName(galicefilename), | |
94 | fRunLoader(0x0), | |
95 | fTPCLoader(0x0), | |
96 | fMagneticField(0.0), | |
3f745d47 | 97 | fUseMagFFromRun(kTRUE), |
f5de2f09 | 98 | fNTrackPoints(0), |
99 | fdR(0.0), | |
66d1d1a4 | 100 | fClusterMap(kFALSE), |
3f745d47 | 101 | fNClustMin(0), |
f5de2f09 | 102 | fNClustMax(150), |
3f745d47 | 103 | fNChi2PerClustMin(0.0), |
104 | fNChi2PerClustMax(10e5), | |
f5de2f09 | 105 | fC00Min(0.0), |
106 | fC00Max(10e5), | |
107 | fC11Min(0.0), | |
108 | fC11Max(10e5), | |
109 | fC22Min(0.0), | |
110 | fC22Max(10e5), | |
111 | fC33Min(0.0), | |
112 | fC33Max(10e5), | |
3f745d47 | 113 | fC44Min(0.0), |
114 | fC44Max(10e5) | |
16701d1b | 115 | { |
116 | //constructor, | |
117 | //Defaults: | |
16701d1b | 118 | // galicefilename = "" - this means: Do not open gAlice file - |
119 | // just leave the global pointer untached | |
88cb7938 | 120 | |
1b446896 | 121 | } |
122 | /********************************************************************/ | |
c0cebee1 | 123 | AliHBTReaderTPC::AliHBTReaderTPC(const AliHBTReaderTPC& in): |
124 | AliHBTReader(in), | |
125 | fFileName(in.fFileName), | |
126 | fRunLoader(0x0), | |
127 | fTPCLoader(0x0), | |
128 | fMagneticField(in.fMagneticField), | |
129 | fUseMagFFromRun(in.fUseMagFFromRun), | |
130 | fNTrackPoints(in.fNTrackPoints), | |
131 | fdR(in.fdR), | |
132 | fNClustMin(in.fNClustMin), | |
133 | fNClustMax(in.fNClustMax), | |
134 | fNChi2PerClustMin(in.fNChi2PerClustMin), | |
135 | fNChi2PerClustMax(in.fNChi2PerClustMax), | |
136 | fC00Min(in.fC00Min), | |
137 | fC00Max(in.fC00Max), | |
138 | fC11Min(in.fC11Min), | |
139 | fC11Max(in.fC11Max), | |
140 | fC22Min(in.fC22Min), | |
141 | fC22Max(in.fC22Max), | |
142 | fC33Min(in.fC33Min), | |
143 | fC33Max(in.fC33Max), | |
144 | fC44Min(in.fC44Min), | |
145 | fC44Max(in.fC44Max) | |
146 | { | |
147 | //cpy constructor, | |
148 | } | |
149 | /********************************************************************/ | |
1b446896 | 150 | |
151 | AliHBTReaderTPC::~AliHBTReaderTPC() | |
bed069a4 | 152 | { |
1b446896 | 153 | //desctructor |
3f745d47 | 154 | if (AliHBTParticle::GetDebug()) |
155 | { | |
156 | Info("~AliHBTReaderTPC","deleting Run Loader"); | |
157 | AliLoader::SetDebug(AliHBTParticle::GetDebug()); | |
158 | } | |
159 | ||
bed069a4 | 160 | delete fRunLoader; |
3f745d47 | 161 | |
162 | if (AliHBTParticle::GetDebug()) | |
163 | { | |
164 | Info("~AliHBTReaderTPC","deleting Run Loader Done"); | |
165 | } | |
bed069a4 | 166 | } |
1b446896 | 167 | /********************************************************************/ |
c0cebee1 | 168 | |
169 | AliHBTReaderTPC& AliHBTReaderTPC::operator=(const AliHBTReaderTPC& in) | |
170 | { | |
171 | //Assigment operator | |
172 | ||
173 | delete fRunLoader; | |
174 | ||
175 | fFileName = in.fFileName; | |
176 | fRunLoader = 0x0; | |
177 | fTPCLoader = 0x0; | |
178 | fMagneticField = in.fMagneticField; | |
179 | fUseMagFFromRun = in.fUseMagFFromRun; | |
180 | fNTrackPoints = in.fNTrackPoints; | |
181 | fdR = in.fdR; | |
182 | fNClustMin = in.fNClustMin; | |
183 | fNClustMax = in.fNClustMax; | |
184 | fNChi2PerClustMin = in.fNChi2PerClustMin; | |
185 | fNChi2PerClustMax = in.fNChi2PerClustMax; | |
186 | fC00Min = in.fC00Min; | |
187 | fC00Max = in.fC00Max; | |
188 | fC11Min = in.fC11Min; | |
189 | fC11Max = in.fC11Max; | |
190 | fC22Min = in.fC22Min; | |
191 | fC22Max = in.fC22Max; | |
192 | fC33Min = in.fC33Min; | |
193 | fC33Max = in.fC33Max; | |
194 | fC44Min = in.fC44Min; | |
195 | fC44Max = in.fC44Max; | |
347e37fd | 196 | return *this; |
c0cebee1 | 197 | } |
198 | /********************************************************************/ | |
199 | ||
bed069a4 | 200 | void AliHBTReaderTPC::Rewind() |
201 | { | |
c0cebee1 | 202 | //Rewind reading to the beginning |
bed069a4 | 203 | delete fRunLoader; |
204 | fRunLoader = 0x0; | |
205 | fCurrentDir = 0; | |
206 | fNEventsRead= 0; | |
bfb09ece | 207 | if (fTrackCounter) fTrackCounter->Reset(); |
bed069a4 | 208 | } |
1b446896 | 209 | /********************************************************************/ |
210 | ||
bed069a4 | 211 | Int_t AliHBTReaderTPC::ReadNext() |
1b446896 | 212 | { |
213 | //reads data and puts put to the particles and tracks objects | |
214 | //reurns 0 if everything is OK | |
215 | // | |
8fe7288a | 216 | Info("Read",""); |
bfb09ece | 217 | |
16701d1b | 218 | TObjArray *tarray = new TObjArray(5000); //cotainer for tpc tracks |
219 | tarray->SetOwner(); //set the ownership of the objects it contains | |
220 | //when array is is deleted or cleared all objects | |
221 | //that it contains are deleted | |
b71a5edb | 222 | |
bed069a4 | 223 | if (fParticlesEvent == 0x0) fParticlesEvent = new AliHBTEvent(); |
224 | if (fTracksEvent == 0x0) fTracksEvent = new AliHBTEvent(); | |
225 | ||
226 | fParticlesEvent->Reset(); | |
227 | fTracksEvent->Reset(); | |
b71a5edb | 228 | |
16701d1b | 229 | do //do{}while; is OK even if 0 dirs specified. In that case we try to read from "./" |
1b446896 | 230 | { |
bed069a4 | 231 | |
232 | if (fRunLoader == 0x0) | |
233 | if (OpenNextSession()) continue;//directory counter is increased inside in case of error | |
234 | ||
235 | if (fCurrentEvent == fRunLoader->GetNumberOfEvents()) | |
88cb7938 | 236 | { |
bed069a4 | 237 | //read next directory |
238 | delete fRunLoader;//close current session | |
239 | fRunLoader = 0x0;//assure pointer is null | |
240 | fCurrentDir++;//go to next dir | |
241 | continue;//directory counter is increased inside in case of error | |
16701d1b | 242 | } |
bed069a4 | 243 | |
244 | Info("ReadNext","Reading Event %d",fCurrentEvent); | |
1b446896 | 245 | |
bed069a4 | 246 | fRunLoader->GetEvent(fCurrentEvent); |
247 | TTree *tracktree = fTPCLoader->TreeT();//get the tree | |
248 | if (!tracktree) //check if we got the tree | |
249 | {//if not return with error | |
250 | Error("ReadNext","Can't get a tree with TPC tracks !\n"); | |
8041e7cf | 251 | fCurrentEvent++;//go to next dir |
bed069a4 | 252 | continue; |
253 | } | |
254 | ||
255 | TBranch *trackbranch=tracktree->GetBranch("tracks");//get the branch with tracks | |
256 | if (!trackbranch) ////check if we got the branch | |
257 | {//if not return with error | |
258 | Error("ReadNext","Can't get a branch with TPC tracks !\n"); | |
8041e7cf | 259 | fCurrentEvent++;//go to next dir |
bed069a4 | 260 | continue; |
261 | } | |
262 | Int_t ntpctracks=(Int_t)tracktree->GetEntries();//get number of TPC tracks | |
263 | Info("ReadNext","Found %d TPC tracks.",ntpctracks); | |
264 | //Copy tracks to array | |
265 | ||
266 | AliTPCtrack *iotrack=0; | |
267 | ||
268 | for (Int_t i=0; i<ntpctracks; i++) //loop over all tpc tracks | |
88cb7938 | 269 | { |
bed069a4 | 270 | iotrack=new AliTPCtrack; //create new tracks |
271 | trackbranch->SetAddress(&iotrack); //tell the branch ehere to put track data from tree(file) | |
272 | tracktree->GetEvent(i); //stream track i to the iotrack | |
273 | tarray->AddLast(iotrack); //put the track in the array | |
88cb7938 | 274 | } |
bed069a4 | 275 | |
276 | Double_t xk; | |
277 | Double_t par[5]; | |
278 | Float_t phi, lam, pt;//angles and transverse momentum | |
279 | Int_t label; //label of the current track | |
280 | ||
281 | AliStack* stack = fRunLoader->Stack(); | |
282 | if (stack == 0x0) | |
16701d1b | 283 | { |
bed069a4 | 284 | Error("ReadNext","Can not get stack for current event",fCurrentEvent); |
285 | fCurrentEvent++; | |
5ee8b891 | 286 | continue; |
16701d1b | 287 | } |
bed069a4 | 288 | stack->Particles(); |
289 | ||
290 | for (Int_t i=0; i<ntpctracks; i++) //loop over all good tracks | |
291 | { | |
292 | iotrack = (AliTPCtrack*)tarray->At(i); | |
293 | label = iotrack->GetLabel(); | |
294 | ||
295 | if (label < 0) continue; | |
3f745d47 | 296 | |
18e18a87 | 297 | if (CheckTrack(iotrack)) continue;//Checks the cuts on track parameters cov. mtx etc |
3f745d47 | 298 | |
bed069a4 | 299 | TParticle *p = (TParticle*)stack->Particle(label); |
300 | ||
301 | if(p == 0x0) continue; //if returned pointer is NULL | |
302 | if(p->GetPDG() == 0x0) continue; //if particle has crezy PDG code (not known to our database) | |
303 | ||
cea0a066 | 304 | if(Rejected(p->GetPdgCode())) continue; //check if we are intersted with particles of this type |
bed069a4 | 305 | //if not take next partilce |
306 | ||
307 | AliHBTParticle* part = new AliHBTParticle(*p,i); | |
cea0a066 | 308 | if(Rejected(part)) { delete part; continue;}//check if meets all criteria of any of our cuts |
bed069a4 | 309 | //if it does not delete it and take next good track |
310 | ||
311 | // iotrack->PropagateTo(3.,0.0028,65.19); | |
312 | // iotrack->PropagateToVertex(36.66,1.2e-3);//orig | |
313 | iotrack->PropagateToVertex(50.,0.0353); | |
314 | ||
315 | iotrack->GetExternalParameters(xk,par); //get properties of the track | |
3f745d47 | 316 | |
bed069a4 | 317 | phi=TMath::ASin(par[2]) + iotrack->GetAlpha(); |
318 | if (phi<-TMath::Pi()) phi+=2*TMath::Pi(); | |
319 | if (phi>=TMath::Pi()) phi-=2*TMath::Pi(); | |
320 | lam=par[3]; | |
321 | pt=1.0/TMath::Abs(par[4]); | |
322 | ||
323 | Double_t tpx = pt * TMath::Cos(phi); //track x coordinate of momentum | |
324 | Double_t tpy = pt * TMath::Sin(phi); //track y coordinate of momentum | |
325 | Double_t tpz = pt * lam; //track z coordinate of momentum | |
326 | ||
327 | Double_t mass = p->GetMass(); | |
328 | Double_t tEtot = TMath::Sqrt( tpx*tpx + tpy*tpy + tpz*tpz + mass*mass);//total energy of the track | |
329 | ||
330 | AliHBTParticle* track = new AliHBTParticle(p->GetPdgCode(),i, tpx, tpy , tpz, tEtot, 0., 0., 0., 0.); | |
cea0a066 | 331 | if(Rejected(track))//check if meets all criteria of any of our cuts |
bed069a4 | 332 | //if it does not delete it and take next good track |
333 | { | |
334 | delete track; | |
335 | delete part; | |
336 | continue; | |
337 | } | |
f5de2f09 | 338 | |
339 | if (fNTrackPoints > 0) | |
340 | { | |
341 | AliHBTTrackPoints* tpts = new AliHBTTrackPoints(fNTrackPoints,iotrack,fdR); | |
342 | track->SetTrackPoints(tpts); | |
343 | } | |
66d1d1a4 | 344 | if ( fClusterMap ) |
345 | { | |
346 | AliHBTClusterMap* cmap = new AliHBTClusterMap(iotrack); | |
347 | track->SetClusterMap(cmap); | |
348 | } | |
349 | ||
bed069a4 | 350 | fParticlesEvent->AddParticle(part); |
351 | fTracksEvent->AddParticle(track); | |
352 | } | |
353 | ||
354 | Info("ReadNext","Read %d tracks and %d particles from event %d (event %d in dir %d).", | |
355 | fParticlesEvent->GetNumberOfParticles(), fTracksEvent->GetNumberOfParticles(), | |
356 | fNEventsRead,fCurrentEvent,fCurrentDir); | |
bfb09ece | 357 | fTrackCounter->Fill(fTracksEvent->GetNumberOfParticles()); |
bed069a4 | 358 | fCurrentEvent++; |
359 | fNEventsRead++; | |
360 | delete tarray; | |
361 | return 0; | |
362 | }while(fCurrentDir < GetNumberOfDirs()); | |
363 | ||
364 | delete tarray; | |
365 | return 1; | |
366 | } | |
367 | /********************************************************************/ | |
368 | ||
369 | Int_t AliHBTReaderTPC::OpenNextSession() | |
370 | { | |
c0cebee1 | 371 | //Opens session thats from fCurrentDir |
bed069a4 | 372 | TString filename = GetDirName(fCurrentDir); |
373 | if (filename.IsNull()) | |
374 | { | |
375 | DoOpenError("Can not get directory name"); | |
376 | return 1; | |
377 | } | |
378 | filename = filename +"/"+ fFileName; | |
e191bb57 | 379 | fRunLoader = AliRunLoader::Open(filename,AliConfig::GetDefaultEventFolderName()); |
bed069a4 | 380 | if( fRunLoader == 0x0) |
381 | { | |
382 | DoOpenError("Can not open session."); | |
383 | return 1; | |
384 | } | |
385 | ||
386 | fRunLoader->LoadHeader(); | |
387 | if (fRunLoader->GetNumberOfEvents() <= 0) | |
388 | { | |
389 | DoOpenError("There is no events in this directory."); | |
390 | return 1; | |
391 | } | |
392 | ||
393 | if (fRunLoader->LoadKinematics()) | |
394 | { | |
395 | DoOpenError("Error occured while loading kinematics."); | |
396 | return 1; | |
397 | } | |
398 | fTPCLoader = (AliTPCLoader*)fRunLoader->GetLoader("TPCLoader"); | |
399 | if ( fTPCLoader == 0x0) | |
400 | { | |
401 | DoOpenError("Exiting due to problems with opening files."); | |
402 | return 1; | |
403 | } | |
404 | Info("OpenNextSession","________________________________________________________"); | |
405 | Info("OpenNextSession","Found %d event(s) in directory %s", | |
406 | fRunLoader->GetNumberOfEvents(),GetDirName(fCurrentDir).Data()); | |
407 | Float_t mf; | |
408 | if (fUseMagFFromRun) | |
409 | { | |
410 | fRunLoader->LoadgAlice(); | |
411 | mf = fRunLoader->GetAliRun()->Field()->SolenoidField(); | |
412 | Info("OpenNextSession","Setting Magnetic Field from run: B=%fT",mf/10.); | |
413 | fRunLoader->UnloadgAlice(); | |
414 | } | |
415 | else | |
416 | { | |
417 | Info("OpenNextSession","Setting Own Magnetic Field: B=%fT",fMagneticField); | |
418 | if (fMagneticField == 0x0) | |
419 | { | |
420 | Fatal("OpenNextSession","Magnetic field can not be 0."); | |
421 | return 1;//pro forma | |
16701d1b | 422 | } |
bed069a4 | 423 | mf = fMagneticField*10.; |
424 | } | |
425 | AliKalmanTrack::SetConvConst(1000/0.299792458/mf); | |
1b446896 | 426 | |
16701d1b | 427 | |
bed069a4 | 428 | if (fTPCLoader->LoadTracks()) |
429 | { | |
430 | DoOpenError("Error occured while loading TPC tracks."); | |
431 | return 1; | |
432 | } | |
88cb7938 | 433 | |
bed069a4 | 434 | fCurrentEvent = 0; |
1b446896 | 435 | return 0; |
bed069a4 | 436 | } |
437 | /********************************************************************/ | |
1b446896 | 438 | |
bed069a4 | 439 | void AliHBTReaderTPC::DoOpenError( const char *va_(fmt), ...) |
440 | { | |
441 | // Does error display and clean-up in case error caught on Open Next Session | |
442 | ||
443 | va_list ap; | |
444 | va_start(ap,va_(fmt)); | |
445 | Error("OpenNextSession", va_(fmt), ap); | |
446 | va_end(ap); | |
447 | ||
448 | delete fRunLoader; | |
449 | fRunLoader = 0x0; | |
450 | fTPCLoader = 0x0; | |
451 | fCurrentDir++; | |
452 | } | |
1b446896 | 453 | |
3f745d47 | 454 | /********************************************************************/ |
c0cebee1 | 455 | Bool_t AliHBTReaderTPC::CheckTrack(AliTPCtrack* t) const |
3f745d47 | 456 | { |
457 | //Performs check of the track | |
458 | if ( (t->GetNumberOfClusters() > fNClustMax) || (t->GetNumberOfClusters() < fNClustMin) ) return kTRUE; | |
459 | ||
f5de2f09 | 460 | Float_t chisqpercl = t->GetChi2()/((Double_t)t->GetNumberOfClusters()); |
461 | if ( (chisqpercl < fNChi2PerClustMin) || (chisqpercl > fNChi2PerClustMax) ) return kTRUE; | |
462 | ||
3f745d47 | 463 | Double_t cc[15]; |
7ff493ea | 464 | t->GetExternalCovariance(cc); |
f5de2f09 | 465 | |
466 | if ( (cc[0] < fC00Min) || (cc[0] > fC00Max) ) return kTRUE; | |
467 | if ( (cc[2] < fC11Min) || (cc[2] > fC11Max) ) return kTRUE; | |
468 | if ( (cc[5] < fC22Min) || (cc[5] > fC22Max) ) return kTRUE; | |
469 | if ( (cc[9] < fC33Min) || (cc[9] > fC33Max) ) return kTRUE; | |
470 | if ( (cc[14] < fC44Min) || (cc[14] > fC44Max) ) return kTRUE; | |
3f745d47 | 471 | |
3f745d47 | 472 | |
473 | return kFALSE; | |
474 | ||
475 | } | |
476 | /********************************************************************/ | |
477 | ||
478 | void AliHBTReaderTPC::SetNClustersRange(Int_t min,Int_t max) | |
479 | { | |
480 | //sets range of Number Of Clusters that tracks have to have | |
481 | fNClustMin = min; | |
482 | fNClustMax = max; | |
483 | } | |
484 | /********************************************************************/ | |
485 | ||
486 | void AliHBTReaderTPC::SetChi2PerCluserRange(Float_t min, Float_t max) | |
487 | { | |
488 | //sets range of Chi2 per Cluster | |
489 | fNChi2PerClustMin = min; | |
490 | fNChi2PerClustMax = max; | |
491 | } | |
492 | /********************************************************************/ | |
493 | ||
f5de2f09 | 494 | void AliHBTReaderTPC::SetC00Range(Float_t min, Float_t max) |
495 | { | |
496 | //Sets range of C00 parameter of covariance matrix of the track | |
497 | //it defines uncertainty of the momentum | |
498 | fC00Min = min; | |
499 | fC00Max = max; | |
500 | } | |
501 | /********************************************************************/ | |
502 | ||
503 | void AliHBTReaderTPC::SetC11Range(Float_t min, Float_t max) | |
504 | { | |
505 | //Sets range of C11 parameter of covariance matrix of the track | |
506 | //it defines uncertainty of the momentum | |
507 | fC11Min = min; | |
508 | fC11Max = max; | |
509 | } | |
510 | /********************************************************************/ | |
511 | ||
512 | void AliHBTReaderTPC::SetC22Range(Float_t min, Float_t max) | |
513 | { | |
514 | //Sets range of C22 parameter of covariance matrix of the track | |
515 | //it defines uncertainty of the momentum | |
516 | fC22Min = min; | |
517 | fC22Max = max; | |
518 | } | |
519 | /********************************************************************/ | |
520 | ||
521 | void AliHBTReaderTPC::SetC33Range(Float_t min, Float_t max) | |
522 | { | |
523 | //Sets range of C33 parameter of covariance matrix of the track | |
524 | //it defines uncertainty of the momentum | |
525 | fC33Min = min; | |
526 | fC33Max = max; | |
527 | } | |
528 | /********************************************************************/ | |
529 | ||
3f745d47 | 530 | void AliHBTReaderTPC::SetC44Range(Float_t min, Float_t max) |
531 | { | |
532 | //Sets range of C44 parameter of covariance matrix of the track | |
533 | //it defines uncertainty of the momentum | |
534 | fC44Min = min; | |
535 | fC44Max = max; | |
536 | } | |
537 | ||
1b446896 | 538 | /********************************************************************/ |
539 | /********************************************************************/ | |
540 | /********************************************************************/ | |
541 | ||
3f745d47 | 542 | /* |
543 | void (AliTPCtrack* iotrack, Double_t curv) | |
544 | { | |
545 | Double_t x[5]; | |
546 | iotrack->GetExternalPara | |
547 | //xk is a | |
548 | Double_t fP4=iotrack->GetC(); | |
549 | Double_t fP2=iotrack->GetEta(); | |
550 | ||
551 | Double_t x1=fX, x2=x1+(xk-x1), dx=x2-x1, y1=fP0, z1=fP1; | |
552 | Double_t c1=fP4*x1 - fP2, r1=sqrt(1.- c1*c1); | |
553 | Double_t c2=fP4*x2 - fP2, r2=sqrt(1.- c2*c2); | |
554 | ||
555 | fP0 += dx*(c1+c2)/(r1+r2); | |
556 | fP1 += dx*(c1+c2)/(c1*r2 + c2*r1)*fP3; | |
557 | ||
558 | } | |
559 | */ | |
560 |