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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> |
24 | #include <AliTPCParam.h> | |
bed069a4 | 25 | #include <AliTPCLoader.h> |
1b446896 | 26 | |
1b446896 | 27 | #include "AliHBTEvent.h" |
28 | #include "AliHBTParticle.h" | |
f5de2f09 | 29 | #include "AliHBTTrackPoints.h" |
66d1d1a4 | 30 | #include "AliHBTClusterMap.h" |
bfb09ece | 31 | |
32 | ||
1b446896 | 33 | ClassImp(AliHBTReaderTPC) |
3f745d47 | 34 | |
bed069a4 | 35 | AliHBTReaderTPC::AliHBTReaderTPC(): |
36 | fFileName("galice.root"), | |
37 | fRunLoader(0x0), | |
38 | fTPCLoader(0x0), | |
39 | fMagneticField(0.0), | |
3f745d47 | 40 | fUseMagFFromRun(kTRUE), |
f5de2f09 | 41 | fNTrackPoints(0), |
42 | fdR(0.0), | |
66d1d1a4 | 43 | fClusterMap(kFALSE), |
3f745d47 | 44 | fNClustMin(0), |
f5de2f09 | 45 | fNClustMax(150), |
3f745d47 | 46 | fNChi2PerClustMin(0.0), |
47 | fNChi2PerClustMax(10e5), | |
f5de2f09 | 48 | fC00Min(0.0), |
49 | fC00Max(10e5), | |
50 | fC11Min(0.0), | |
51 | fC11Max(10e5), | |
52 | fC22Min(0.0), | |
53 | fC22Max(10e5), | |
54 | fC33Min(0.0), | |
55 | fC33Max(10e5), | |
3f745d47 | 56 | fC44Min(0.0), |
57 | fC44Max(10e5) | |
88cb7938 | 58 | { |
f5de2f09 | 59 | //constructor |
88cb7938 | 60 | |
88cb7938 | 61 | } |
f5de2f09 | 62 | /********************************************************************/ |
98295f4b | 63 | |
bed069a4 | 64 | AliHBTReaderTPC::AliHBTReaderTPC(const Char_t* galicefilename): |
65 | fFileName(galicefilename), | |
66 | fRunLoader(0x0), | |
67 | fTPCLoader(0x0), | |
68 | fMagneticField(0.0), | |
3f745d47 | 69 | fUseMagFFromRun(kTRUE), |
f5de2f09 | 70 | fNTrackPoints(0), |
71 | fdR(0.0), | |
3f745d47 | 72 | fNClustMin(0), |
f5de2f09 | 73 | fNClustMax(150), |
3f745d47 | 74 | fNChi2PerClustMin(0.0), |
75 | fNChi2PerClustMax(10e5), | |
f5de2f09 | 76 | fC00Min(0.0), |
77 | fC00Max(10e5), | |
78 | fC11Min(0.0), | |
79 | fC11Max(10e5), | |
80 | fC22Min(0.0), | |
81 | fC22Max(10e5), | |
82 | fC33Min(0.0), | |
83 | fC33Max(10e5), | |
3f745d47 | 84 | fC44Min(0.0), |
85 | fC44Max(10e5) | |
1b446896 | 86 | { |
16701d1b | 87 | //constructor, |
1b446896 | 88 | //Defaults: |
16701d1b | 89 | } |
90 | /********************************************************************/ | |
f5de2f09 | 91 | |
88cb7938 | 92 | AliHBTReaderTPC::AliHBTReaderTPC(TObjArray* dirs, const Char_t* galicefilename): |
bed069a4 | 93 | AliHBTReader(dirs), |
94 | fFileName(galicefilename), | |
95 | fRunLoader(0x0), | |
96 | fTPCLoader(0x0), | |
97 | fMagneticField(0.0), | |
3f745d47 | 98 | fUseMagFFromRun(kTRUE), |
f5de2f09 | 99 | fNTrackPoints(0), |
100 | fdR(0.0), | |
66d1d1a4 | 101 | fClusterMap(kFALSE), |
3f745d47 | 102 | fNClustMin(0), |
f5de2f09 | 103 | fNClustMax(150), |
3f745d47 | 104 | fNChi2PerClustMin(0.0), |
105 | fNChi2PerClustMax(10e5), | |
f5de2f09 | 106 | fC00Min(0.0), |
107 | fC00Max(10e5), | |
108 | fC11Min(0.0), | |
109 | fC11Max(10e5), | |
110 | fC22Min(0.0), | |
111 | fC22Max(10e5), | |
112 | fC33Min(0.0), | |
113 | fC33Max(10e5), | |
3f745d47 | 114 | fC44Min(0.0), |
115 | fC44Max(10e5) | |
16701d1b | 116 | { |
117 | //constructor, | |
118 | //Defaults: | |
16701d1b | 119 | // galicefilename = "" - this means: Do not open gAlice file - |
120 | // just leave the global pointer untached | |
88cb7938 | 121 | |
1b446896 | 122 | } |
123 | /********************************************************************/ | |
c0cebee1 | 124 | AliHBTReaderTPC::AliHBTReaderTPC(const AliHBTReaderTPC& in): |
125 | AliHBTReader(in), | |
126 | fFileName(in.fFileName), | |
127 | fRunLoader(0x0), | |
128 | fTPCLoader(0x0), | |
129 | fMagneticField(in.fMagneticField), | |
130 | fUseMagFFromRun(in.fUseMagFFromRun), | |
131 | fNTrackPoints(in.fNTrackPoints), | |
132 | fdR(in.fdR), | |
133 | fNClustMin(in.fNClustMin), | |
134 | fNClustMax(in.fNClustMax), | |
135 | fNChi2PerClustMin(in.fNChi2PerClustMin), | |
136 | fNChi2PerClustMax(in.fNChi2PerClustMax), | |
137 | fC00Min(in.fC00Min), | |
138 | fC00Max(in.fC00Max), | |
139 | fC11Min(in.fC11Min), | |
140 | fC11Max(in.fC11Max), | |
141 | fC22Min(in.fC22Min), | |
142 | fC22Max(in.fC22Max), | |
143 | fC33Min(in.fC33Min), | |
144 | fC33Max(in.fC33Max), | |
145 | fC44Min(in.fC44Min), | |
146 | fC44Max(in.fC44Max) | |
147 | { | |
148 | //cpy constructor, | |
149 | } | |
150 | /********************************************************************/ | |
1b446896 | 151 | |
152 | AliHBTReaderTPC::~AliHBTReaderTPC() | |
bed069a4 | 153 | { |
1b446896 | 154 | //desctructor |
3f745d47 | 155 | if (AliHBTParticle::GetDebug()) |
156 | { | |
157 | Info("~AliHBTReaderTPC","deleting Run Loader"); | |
158 | AliLoader::SetDebug(AliHBTParticle::GetDebug()); | |
159 | } | |
160 | ||
bed069a4 | 161 | delete fRunLoader; |
3f745d47 | 162 | |
163 | if (AliHBTParticle::GetDebug()) | |
164 | { | |
165 | Info("~AliHBTReaderTPC","deleting Run Loader Done"); | |
166 | } | |
bed069a4 | 167 | } |
1b446896 | 168 | /********************************************************************/ |
c0cebee1 | 169 | |
170 | AliHBTReaderTPC& AliHBTReaderTPC::operator=(const AliHBTReaderTPC& in) | |
171 | { | |
172 | //Assigment operator | |
173 | ||
174 | delete fRunLoader; | |
175 | ||
176 | fFileName = in.fFileName; | |
177 | fRunLoader = 0x0; | |
178 | fTPCLoader = 0x0; | |
179 | fMagneticField = in.fMagneticField; | |
180 | fUseMagFFromRun = in.fUseMagFFromRun; | |
181 | fNTrackPoints = in.fNTrackPoints; | |
182 | fdR = in.fdR; | |
183 | fNClustMin = in.fNClustMin; | |
184 | fNClustMax = in.fNClustMax; | |
185 | fNChi2PerClustMin = in.fNChi2PerClustMin; | |
186 | fNChi2PerClustMax = in.fNChi2PerClustMax; | |
187 | fC00Min = in.fC00Min; | |
188 | fC00Max = in.fC00Max; | |
189 | fC11Min = in.fC11Min; | |
190 | fC11Max = in.fC11Max; | |
191 | fC22Min = in.fC22Min; | |
192 | fC22Max = in.fC22Max; | |
193 | fC33Min = in.fC33Min; | |
194 | fC33Max = in.fC33Max; | |
195 | fC44Min = in.fC44Min; | |
196 | fC44Max = in.fC44Max; | |
bed069a4 | 197 | |
c0cebee1 | 198 | } |
199 | /********************************************************************/ | |
200 | ||
bed069a4 | 201 | void AliHBTReaderTPC::Rewind() |
202 | { | |
c0cebee1 | 203 | //Rewind reading to the beginning |
bed069a4 | 204 | delete fRunLoader; |
205 | fRunLoader = 0x0; | |
206 | fCurrentDir = 0; | |
207 | fNEventsRead= 0; | |
bfb09ece | 208 | if (fTrackCounter) fTrackCounter->Reset(); |
bed069a4 | 209 | } |
1b446896 | 210 | /********************************************************************/ |
211 | ||
bed069a4 | 212 | Int_t AliHBTReaderTPC::ReadNext() |
1b446896 | 213 | { |
214 | //reads data and puts put to the particles and tracks objects | |
215 | //reurns 0 if everything is OK | |
216 | // | |
8fe7288a | 217 | Info("Read",""); |
bfb09ece | 218 | |
16701d1b | 219 | TObjArray *tarray = new TObjArray(5000); //cotainer for tpc tracks |
220 | tarray->SetOwner(); //set the ownership of the objects it contains | |
221 | //when array is is deleted or cleared all objects | |
222 | //that it contains are deleted | |
b71a5edb | 223 | |
bed069a4 | 224 | if (fParticlesEvent == 0x0) fParticlesEvent = new AliHBTEvent(); |
225 | if (fTracksEvent == 0x0) fTracksEvent = new AliHBTEvent(); | |
226 | ||
227 | fParticlesEvent->Reset(); | |
228 | fTracksEvent->Reset(); | |
b71a5edb | 229 | |
16701d1b | 230 | do //do{}while; is OK even if 0 dirs specified. In that case we try to read from "./" |
1b446896 | 231 | { |
bed069a4 | 232 | |
233 | if (fRunLoader == 0x0) | |
234 | if (OpenNextSession()) continue;//directory counter is increased inside in case of error | |
235 | ||
236 | if (fCurrentEvent == fRunLoader->GetNumberOfEvents()) | |
88cb7938 | 237 | { |
bed069a4 | 238 | //read next directory |
239 | delete fRunLoader;//close current session | |
240 | fRunLoader = 0x0;//assure pointer is null | |
241 | fCurrentDir++;//go to next dir | |
242 | continue;//directory counter is increased inside in case of error | |
16701d1b | 243 | } |
bed069a4 | 244 | |
245 | Info("ReadNext","Reading Event %d",fCurrentEvent); | |
1b446896 | 246 | |
bed069a4 | 247 | fRunLoader->GetEvent(fCurrentEvent); |
248 | TTree *tracktree = fTPCLoader->TreeT();//get the tree | |
249 | if (!tracktree) //check if we got the tree | |
250 | {//if not return with error | |
251 | Error("ReadNext","Can't get a tree with TPC tracks !\n"); | |
8041e7cf | 252 | fCurrentEvent++;//go to next dir |
bed069a4 | 253 | continue; |
254 | } | |
255 | ||
256 | TBranch *trackbranch=tracktree->GetBranch("tracks");//get the branch with tracks | |
257 | if (!trackbranch) ////check if we got the branch | |
258 | {//if not return with error | |
259 | Error("ReadNext","Can't get a branch with TPC tracks !\n"); | |
8041e7cf | 260 | fCurrentEvent++;//go to next dir |
bed069a4 | 261 | continue; |
262 | } | |
263 | Int_t ntpctracks=(Int_t)tracktree->GetEntries();//get number of TPC tracks | |
264 | Info("ReadNext","Found %d TPC tracks.",ntpctracks); | |
265 | //Copy tracks to array | |
266 | ||
267 | AliTPCtrack *iotrack=0; | |
268 | ||
269 | for (Int_t i=0; i<ntpctracks; i++) //loop over all tpc tracks | |
88cb7938 | 270 | { |
bed069a4 | 271 | iotrack=new AliTPCtrack; //create new tracks |
272 | trackbranch->SetAddress(&iotrack); //tell the branch ehere to put track data from tree(file) | |
273 | tracktree->GetEvent(i); //stream track i to the iotrack | |
274 | tarray->AddLast(iotrack); //put the track in the array | |
88cb7938 | 275 | } |
bed069a4 | 276 | |
277 | Double_t xk; | |
278 | Double_t par[5]; | |
279 | Float_t phi, lam, pt;//angles and transverse momentum | |
280 | Int_t label; //label of the current track | |
281 | ||
282 | AliStack* stack = fRunLoader->Stack(); | |
283 | if (stack == 0x0) | |
16701d1b | 284 | { |
bed069a4 | 285 | Error("ReadNext","Can not get stack for current event",fCurrentEvent); |
286 | fCurrentEvent++; | |
5ee8b891 | 287 | continue; |
16701d1b | 288 | } |
bed069a4 | 289 | stack->Particles(); |
290 | ||
291 | for (Int_t i=0; i<ntpctracks; i++) //loop over all good tracks | |
292 | { | |
293 | iotrack = (AliTPCtrack*)tarray->At(i); | |
294 | label = iotrack->GetLabel(); | |
295 | ||
296 | if (label < 0) continue; | |
3f745d47 | 297 | |
298 | if (CheckTrack(iotrack)) continue; | |
299 | ||
bed069a4 | 300 | TParticle *p = (TParticle*)stack->Particle(label); |
301 | ||
302 | if(p == 0x0) continue; //if returned pointer is NULL | |
303 | if(p->GetPDG() == 0x0) continue; //if particle has crezy PDG code (not known to our database) | |
304 | ||
305 | if(Pass(p->GetPdgCode())) continue; //check if we are intersted with particles of this type | |
306 | //if not take next partilce | |
307 | ||
308 | AliHBTParticle* part = new AliHBTParticle(*p,i); | |
309 | if(Pass(part)) { delete part; continue;}//check if meets all criteria of any of our cuts | |
310 | //if it does not delete it and take next good track | |
311 | ||
312 | // iotrack->PropagateTo(3.,0.0028,65.19); | |
313 | // iotrack->PropagateToVertex(36.66,1.2e-3);//orig | |
314 | iotrack->PropagateToVertex(50.,0.0353); | |
315 | ||
316 | iotrack->GetExternalParameters(xk,par); //get properties of the track | |
3f745d47 | 317 | |
bed069a4 | 318 | phi=TMath::ASin(par[2]) + iotrack->GetAlpha(); |
319 | if (phi<-TMath::Pi()) phi+=2*TMath::Pi(); | |
320 | if (phi>=TMath::Pi()) phi-=2*TMath::Pi(); | |
321 | lam=par[3]; | |
322 | pt=1.0/TMath::Abs(par[4]); | |
323 | ||
324 | Double_t tpx = pt * TMath::Cos(phi); //track x coordinate of momentum | |
325 | Double_t tpy = pt * TMath::Sin(phi); //track y coordinate of momentum | |
326 | Double_t tpz = pt * lam; //track z coordinate of momentum | |
327 | ||
328 | Double_t mass = p->GetMass(); | |
329 | Double_t tEtot = TMath::Sqrt( tpx*tpx + tpy*tpy + tpz*tpz + mass*mass);//total energy of the track | |
330 | ||
331 | AliHBTParticle* track = new AliHBTParticle(p->GetPdgCode(),i, tpx, tpy , tpz, tEtot, 0., 0., 0., 0.); | |
332 | if(Pass(track))//check if meets all criteria of any of our cuts | |
333 | //if it does not delete it and take next good track | |
334 | { | |
335 | delete track; | |
336 | delete part; | |
337 | continue; | |
338 | } | |
f5de2f09 | 339 | |
340 | if (fNTrackPoints > 0) | |
341 | { | |
342 | AliHBTTrackPoints* tpts = new AliHBTTrackPoints(fNTrackPoints,iotrack,fdR); | |
343 | track->SetTrackPoints(tpts); | |
344 | } | |
66d1d1a4 | 345 | if ( fClusterMap ) |
346 | { | |
347 | AliHBTClusterMap* cmap = new AliHBTClusterMap(iotrack); | |
348 | track->SetClusterMap(cmap); | |
349 | } | |
350 | ||
bed069a4 | 351 | fParticlesEvent->AddParticle(part); |
352 | fTracksEvent->AddParticle(track); | |
353 | } | |
354 | ||
355 | Info("ReadNext","Read %d tracks and %d particles from event %d (event %d in dir %d).", | |
356 | fParticlesEvent->GetNumberOfParticles(), fTracksEvent->GetNumberOfParticles(), | |
357 | fNEventsRead,fCurrentEvent,fCurrentDir); | |
bfb09ece | 358 | fTrackCounter->Fill(fTracksEvent->GetNumberOfParticles()); |
bed069a4 | 359 | fCurrentEvent++; |
360 | fNEventsRead++; | |
361 | delete tarray; | |
362 | return 0; | |
363 | }while(fCurrentDir < GetNumberOfDirs()); | |
364 | ||
365 | delete tarray; | |
366 | return 1; | |
367 | } | |
368 | /********************************************************************/ | |
369 | ||
370 | Int_t AliHBTReaderTPC::OpenNextSession() | |
371 | { | |
c0cebee1 | 372 | //Opens session thats from fCurrentDir |
bed069a4 | 373 | TString filename = GetDirName(fCurrentDir); |
374 | if (filename.IsNull()) | |
375 | { | |
376 | DoOpenError("Can not get directory name"); | |
377 | return 1; | |
378 | } | |
379 | filename = filename +"/"+ fFileName; | |
380 | fRunLoader = AliRunLoader::Open(filename,AliConfig::fgkDefaultEventFolderName); | |
381 | if( fRunLoader == 0x0) | |
382 | { | |
383 | DoOpenError("Can not open session."); | |
384 | return 1; | |
385 | } | |
386 | ||
387 | fRunLoader->LoadHeader(); | |
388 | if (fRunLoader->GetNumberOfEvents() <= 0) | |
389 | { | |
390 | DoOpenError("There is no events in this directory."); | |
391 | return 1; | |
392 | } | |
393 | ||
394 | if (fRunLoader->LoadKinematics()) | |
395 | { | |
396 | DoOpenError("Error occured while loading kinematics."); | |
397 | return 1; | |
398 | } | |
399 | fTPCLoader = (AliTPCLoader*)fRunLoader->GetLoader("TPCLoader"); | |
400 | if ( fTPCLoader == 0x0) | |
401 | { | |
402 | DoOpenError("Exiting due to problems with opening files."); | |
403 | return 1; | |
404 | } | |
405 | Info("OpenNextSession","________________________________________________________"); | |
406 | Info("OpenNextSession","Found %d event(s) in directory %s", | |
407 | fRunLoader->GetNumberOfEvents(),GetDirName(fCurrentDir).Data()); | |
408 | Float_t mf; | |
409 | if (fUseMagFFromRun) | |
410 | { | |
411 | fRunLoader->LoadgAlice(); | |
412 | mf = fRunLoader->GetAliRun()->Field()->SolenoidField(); | |
413 | Info("OpenNextSession","Setting Magnetic Field from run: B=%fT",mf/10.); | |
414 | fRunLoader->UnloadgAlice(); | |
415 | } | |
416 | else | |
417 | { | |
418 | Info("OpenNextSession","Setting Own Magnetic Field: B=%fT",fMagneticField); | |
419 | if (fMagneticField == 0x0) | |
420 | { | |
421 | Fatal("OpenNextSession","Magnetic field can not be 0."); | |
422 | return 1;//pro forma | |
16701d1b | 423 | } |
bed069a4 | 424 | mf = fMagneticField*10.; |
425 | } | |
426 | AliKalmanTrack::SetConvConst(1000/0.299792458/mf); | |
1b446896 | 427 | |
16701d1b | 428 | |
bed069a4 | 429 | fRunLoader->CdGAFile(); |
c0cebee1 | 430 | AliTPCParam *aTPCParam= (AliTPCParam*)gDirectory->Get("75x40_100x60"); |
431 | if (!aTPCParam) | |
bed069a4 | 432 | { |
c0cebee1 | 433 | aTPCParam=(AliTPCParam *)gDirectory->Get("75x40_100x60_150x60"); |
434 | if (!aTPCParam) | |
bed069a4 | 435 | { |
436 | DoOpenError("TPC parameters have not been found !\n"); | |
437 | return 1; | |
438 | } | |
439 | } | |
440 | ||
441 | if (fTPCLoader->LoadTracks()) | |
442 | { | |
443 | DoOpenError("Error occured while loading TPC tracks."); | |
444 | return 1; | |
445 | } | |
88cb7938 | 446 | |
bed069a4 | 447 | fCurrentEvent = 0; |
1b446896 | 448 | return 0; |
bed069a4 | 449 | } |
450 | /********************************************************************/ | |
1b446896 | 451 | |
bed069a4 | 452 | void AliHBTReaderTPC::DoOpenError( const char *va_(fmt), ...) |
453 | { | |
454 | // Does error display and clean-up in case error caught on Open Next Session | |
455 | ||
456 | va_list ap; | |
457 | va_start(ap,va_(fmt)); | |
458 | Error("OpenNextSession", va_(fmt), ap); | |
459 | va_end(ap); | |
460 | ||
461 | delete fRunLoader; | |
462 | fRunLoader = 0x0; | |
463 | fTPCLoader = 0x0; | |
464 | fCurrentDir++; | |
465 | } | |
1b446896 | 466 | |
3f745d47 | 467 | /********************************************************************/ |
c0cebee1 | 468 | Bool_t AliHBTReaderTPC::CheckTrack(AliTPCtrack* t) const |
3f745d47 | 469 | { |
470 | //Performs check of the track | |
471 | if ( (t->GetNumberOfClusters() > fNClustMax) || (t->GetNumberOfClusters() < fNClustMin) ) return kTRUE; | |
472 | ||
f5de2f09 | 473 | Float_t chisqpercl = t->GetChi2()/((Double_t)t->GetNumberOfClusters()); |
474 | if ( (chisqpercl < fNChi2PerClustMin) || (chisqpercl > fNChi2PerClustMax) ) return kTRUE; | |
475 | ||
3f745d47 | 476 | Double_t cc[15]; |
477 | t->GetCovariance(cc); | |
f5de2f09 | 478 | |
479 | if ( (cc[0] < fC00Min) || (cc[0] > fC00Max) ) return kTRUE; | |
480 | if ( (cc[2] < fC11Min) || (cc[2] > fC11Max) ) return kTRUE; | |
481 | if ( (cc[5] < fC22Min) || (cc[5] > fC22Max) ) return kTRUE; | |
482 | if ( (cc[9] < fC33Min) || (cc[9] > fC33Max) ) return kTRUE; | |
483 | if ( (cc[14] < fC44Min) || (cc[14] > fC44Max) ) return kTRUE; | |
3f745d47 | 484 | |
3f745d47 | 485 | |
486 | return kFALSE; | |
487 | ||
488 | } | |
489 | /********************************************************************/ | |
490 | ||
491 | void AliHBTReaderTPC::SetNClustersRange(Int_t min,Int_t max) | |
492 | { | |
493 | //sets range of Number Of Clusters that tracks have to have | |
494 | fNClustMin = min; | |
495 | fNClustMax = max; | |
496 | } | |
497 | /********************************************************************/ | |
498 | ||
499 | void AliHBTReaderTPC::SetChi2PerCluserRange(Float_t min, Float_t max) | |
500 | { | |
501 | //sets range of Chi2 per Cluster | |
502 | fNChi2PerClustMin = min; | |
503 | fNChi2PerClustMax = max; | |
504 | } | |
505 | /********************************************************************/ | |
506 | ||
f5de2f09 | 507 | void AliHBTReaderTPC::SetC00Range(Float_t min, Float_t max) |
508 | { | |
509 | //Sets range of C00 parameter of covariance matrix of the track | |
510 | //it defines uncertainty of the momentum | |
511 | fC00Min = min; | |
512 | fC00Max = max; | |
513 | } | |
514 | /********************************************************************/ | |
515 | ||
516 | void AliHBTReaderTPC::SetC11Range(Float_t min, Float_t max) | |
517 | { | |
518 | //Sets range of C11 parameter of covariance matrix of the track | |
519 | //it defines uncertainty of the momentum | |
520 | fC11Min = min; | |
521 | fC11Max = max; | |
522 | } | |
523 | /********************************************************************/ | |
524 | ||
525 | void AliHBTReaderTPC::SetC22Range(Float_t min, Float_t max) | |
526 | { | |
527 | //Sets range of C22 parameter of covariance matrix of the track | |
528 | //it defines uncertainty of the momentum | |
529 | fC22Min = min; | |
530 | fC22Max = max; | |
531 | } | |
532 | /********************************************************************/ | |
533 | ||
534 | void AliHBTReaderTPC::SetC33Range(Float_t min, Float_t max) | |
535 | { | |
536 | //Sets range of C33 parameter of covariance matrix of the track | |
537 | //it defines uncertainty of the momentum | |
538 | fC33Min = min; | |
539 | fC33Max = max; | |
540 | } | |
541 | /********************************************************************/ | |
542 | ||
3f745d47 | 543 | void AliHBTReaderTPC::SetC44Range(Float_t min, Float_t max) |
544 | { | |
545 | //Sets range of C44 parameter of covariance matrix of the track | |
546 | //it defines uncertainty of the momentum | |
547 | fC44Min = min; | |
548 | fC44Max = max; | |
549 | } | |
550 | ||
1b446896 | 551 | /********************************************************************/ |
552 | /********************************************************************/ | |
553 | /********************************************************************/ | |
554 | ||
3f745d47 | 555 | /* |
556 | void (AliTPCtrack* iotrack, Double_t curv) | |
557 | { | |
558 | Double_t x[5]; | |
559 | iotrack->GetExternalPara | |
560 | //xk is a | |
561 | Double_t fP4=iotrack->GetC(); | |
562 | Double_t fP2=iotrack->GetEta(); | |
563 | ||
564 | Double_t x1=fX, x2=x1+(xk-x1), dx=x2-x1, y1=fP0, z1=fP1; | |
565 | Double_t c1=fP4*x1 - fP2, r1=sqrt(1.- c1*c1); | |
566 | Double_t c2=fP4*x2 - fP2, r2=sqrt(1.- c2*c2); | |
567 | ||
568 | fP0 += dx*(c1+c2)/(r1+r2); | |
569 | fP1 += dx*(c1+c2)/(c1*r2 + c2*r1)*fP3; | |
570 | ||
571 | } | |
572 | */ | |
573 |