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Common track parametrization in the barrel detectors (Yu.Belikov)
[u/mrichter/AliRoot.git] / PWG0 / esdTrackCuts / AliESDtrackCuts.cxx
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0b75bef2 1#include "AliESDtrackCuts.h"
2
aa93c798 3
4#include <AliESDtrack.h>
5#include <AliESD.h>
6#include <AliLog.h>
7
0b75bef2 8//____________________________________________________________________
f58f1a93 9ClassImp(AliESDtrackCuts)
0b75bef2 10
ebd60d8e 11// Cut names
ab2c1f0d 12const Char_t* AliESDtrackCuts::fgkCutNames[kNCuts] = {
ebd60d8e 13 "require TPC refit",
14 "require ITS refit",
15 "n clusters TPC",
16 "n clusters ITS",
17 "#Chi^{2}/clusters TPC",
18 "#Chi^{2}/clusters ITS",
19 "cov 11",
20 "cov 22",
21 "cov 33",
22 "cov 44",
23 "cov 55",
24 "trk-to-vtx",
25 "trk-to-vtx failed",
26 "kink daughters",
ebd60d8e 27 "p",
28 "p_{T}",
29 "p_{x}",
30 "p_{y}",
31 "p_{z}",
32 "y",
33 "eta"
34};
35
0b75bef2 36//____________________________________________________________________
aa617804 37AliESDtrackCuts::AliESDtrackCuts() : TObject(),
38 fCutMinNClusterTPC(0),
39 fCutMinNClusterITS(0),
40 fCutMaxChi2PerClusterTPC(0),
41 fCutMaxChi2PerClusterITS(0),
42 fCutMaxC11(0),
43 fCutMaxC22(0),
44 fCutMaxC33(0),
45 fCutMaxC44(0),
46 fCutMaxC55(0),
47 fCutAcceptKinkDaughters(0),
48 fCutRequireTPCRefit(0),
49 fCutRequireITSRefit(0),
50 fCutNsigmaToVertex(0),
51 fCutSigmaToVertexRequired(0),
52 fPMin(0),
53 fPMax(0),
54 fPtMin(0),
55 fPtMax(0),
56 fPxMin(0),
57 fPxMax(0),
58 fPyMin(0),
59 fPyMax(0),
60 fPzMin(0),
61 fPzMax(0),
62 fEtaMin(0),
63 fEtaMax(0),
64 fRapMin(0),
65 fRapMax(0),
66 fHistogramsOn(0),
67 fhCutStatistics(0),
68 fhCutCorrelation(0)
ebd60d8e 69{
70 //
71 // constructor
72 //
73
74 Init();
0b75bef2 75
76 //##############################################################################
77 // setting default cuts
0b75bef2 78 SetMinNClustersTPC();
ebd60d8e 79 SetMinNClustersITS();
0b75bef2 80 SetMaxChi2PerClusterTPC();
81 SetMaxChi2PerClusterITS();
82 SetMaxCovDiagonalElements();
83 SetRequireTPCRefit();
84 SetRequireITSRefit();
85 SetAcceptKingDaughters();
86 SetMinNsigmaToVertex();
87 SetRequireSigmaToVertex();
88 SetPRange();
89 SetPtRange();
90 SetPxRange();
91 SetPyRange();
92 SetPzRange();
93 SetEtaRange();
94 SetRapRange();
95
96 SetHistogramsOn();
ebd60d8e 97}
98
99//_____________________________________________________________________________
aa617804 100AliESDtrackCuts::AliESDtrackCuts(const AliESDtrackCuts &c) : TObject(c),
101 fCutMinNClusterTPC(0),
102 fCutMinNClusterITS(0),
103 fCutMaxChi2PerClusterTPC(0),
104 fCutMaxChi2PerClusterITS(0),
105 fCutMaxC11(0),
106 fCutMaxC22(0),
107 fCutMaxC33(0),
108 fCutMaxC44(0),
109 fCutMaxC55(0),
110 fCutAcceptKinkDaughters(0),
111 fCutRequireTPCRefit(0),
112 fCutRequireITSRefit(0),
113 fCutNsigmaToVertex(0),
114 fCutSigmaToVertexRequired(0),
115 fPMin(0),
116 fPMax(0),
117 fPtMin(0),
118 fPtMax(0),
119 fPxMin(0),
120 fPxMax(0),
121 fPyMin(0),
122 fPyMax(0),
123 fPzMin(0),
124 fPzMax(0),
125 fEtaMin(0),
126 fEtaMax(0),
127 fRapMin(0),
128 fRapMax(0),
129 fHistogramsOn(0),
130 fhCutStatistics(0),
131 fhCutCorrelation(0)
ebd60d8e 132{
133 //
134 // copy constructor
135 //
136
137 ((AliESDtrackCuts &) c).Copy(*this);
138}
139
140AliESDtrackCuts::~AliESDtrackCuts()
141{
142 //
143 // destructor
144 //
145
146 // ## TODO to be implemented
147}
148
149void AliESDtrackCuts::Init()
150{
151 //
152 // sets everything to zero
153 //
154
ab2c1f0d 155 fCutMinNClusterTPC = 0;
156 fCutMinNClusterITS = 0;
ebd60d8e 157
ab2c1f0d 158 fCutMaxChi2PerClusterTPC = 0;
159 fCutMaxChi2PerClusterITS = 0;
ebd60d8e 160
ab2c1f0d 161 fCutMaxC11 = 0;
162 fCutMaxC22 = 0;
163 fCutMaxC33 = 0;
164 fCutMaxC44 = 0;
165 fCutMaxC55 = 0;
ebd60d8e 166
ab2c1f0d 167 fCutAcceptKinkDaughters = 0;
168 fCutRequireTPCRefit = 0;
169 fCutRequireITSRefit = 0;
ebd60d8e 170
ab2c1f0d 171 fCutNsigmaToVertex = 0;
172 fCutSigmaToVertexRequired = 0;
ebd60d8e 173
174 fPMin = 0;
175 fPMax = 0;
176 fPtMin = 0;
177 fPtMax = 0;
178 fPxMin = 0;
179 fPxMax = 0;
180 fPyMin = 0;
181 fPyMax = 0;
182 fPzMin = 0;
183 fPzMax = 0;
184 fEtaMin = 0;
185 fEtaMax = 0;
186 fRapMin = 0;
187 fRapMax = 0;
188
189 fHistogramsOn = kFALSE;
190
191 for (Int_t i=0; i<2; ++i)
192 {
193 fhNClustersITS[i] = 0;
194 fhNClustersTPC[i] = 0;
195
196 fhChi2PerClusterITS[i] = 0;
197 fhChi2PerClusterTPC[i] = 0;
198
199 fhC11[i] = 0;
200 fhC22[i] = 0;
201 fhC33[i] = 0;
202 fhC44[i] = 0;
203 fhC55[i] = 0;
204
205 fhDXY[i] = 0;
206 fhDZ[i] = 0;
207 fhDXYvsDZ[i] = 0;
208
209 fhDXYNormalized[i] = 0;
210 fhDZNormalized[i] = 0;
211 fhDXYvsDZNormalized[i] = 0;
212 }
213
214 fhCutStatistics = 0;
215 fhCutCorrelation = 0;
216}
217
218//_____________________________________________________________________________
219AliESDtrackCuts &AliESDtrackCuts::operator=(const AliESDtrackCuts &c)
220{
221 //
222 // Assignment operator
223 //
0b75bef2 224
ebd60d8e 225 if (this != &c) ((AliESDtrackCuts &) c).Copy(*this);
226 return *this;
227}
228
229//_____________________________________________________________________________
230void AliESDtrackCuts::Copy(TObject &c) const
231{
232 //
233 // Copy function
234 //
235
236 AliESDtrackCuts& target = (AliESDtrackCuts &) c;
237
238 target.Init();
239
ab2c1f0d 240 target.fCutMinNClusterTPC = fCutMinNClusterTPC;
241 target.fCutMinNClusterITS = fCutMinNClusterITS;
ebd60d8e 242
ab2c1f0d 243 target.fCutMaxChi2PerClusterTPC = fCutMaxChi2PerClusterTPC;
244 target.fCutMaxChi2PerClusterITS = fCutMaxChi2PerClusterITS;
ebd60d8e 245
ab2c1f0d 246 target.fCutMaxC11 = fCutMaxC11;
247 target.fCutMaxC22 = fCutMaxC22;
248 target.fCutMaxC33 = fCutMaxC33;
249 target.fCutMaxC44 = fCutMaxC44;
250 target.fCutMaxC55 = fCutMaxC55;
ebd60d8e 251
ab2c1f0d 252 target.fCutAcceptKinkDaughters = fCutAcceptKinkDaughters;
253 target.fCutRequireTPCRefit = fCutRequireTPCRefit;
254 target.fCutRequireITSRefit = fCutRequireITSRefit;
ebd60d8e 255
ab2c1f0d 256 target.fCutNsigmaToVertex = fCutNsigmaToVertex;
257 target.fCutSigmaToVertexRequired = fCutSigmaToVertexRequired;
ebd60d8e 258
259 target.fPMin = fPMin;
260 target.fPMax = fPMax;
261 target.fPtMin = fPtMin;
262 target.fPtMax = fPtMax;
263 target.fPxMin = fPxMin;
264 target.fPxMax = fPxMax;
265 target.fPyMin = fPyMin;
266 target.fPyMax = fPyMax;
267 target.fPzMin = fPzMin;
268 target.fPzMax = fPzMax;
269 target.fEtaMin = fEtaMin;
270 target.fEtaMax = fEtaMax;
271 target.fRapMin = fRapMin;
272 target.fRapMax = fRapMax;
273
274 target.fHistogramsOn = fHistogramsOn;
275
276 for (Int_t i=0; i<2; ++i)
277 {
278 if (fhNClustersITS[i]) target.fhNClustersITS[i] = (TH1F*) fhNClustersITS[i]->Clone();
279 if (fhNClustersTPC[i]) target.fhNClustersTPC[i] = (TH1F*) fhNClustersTPC[i]->Clone();
280
281 if (fhChi2PerClusterITS[i]) target.fhChi2PerClusterITS[i] = (TH1F*) fhChi2PerClusterITS[i]->Clone();
282 if (fhChi2PerClusterTPC[i]) target.fhChi2PerClusterTPC[i] = (TH1F*) fhChi2PerClusterTPC[i]->Clone();
283
284 if (fhC11[i]) target.fhC11[i] = (TH1F*) fhC11[i]->Clone();
285 if (fhC22[i]) target.fhC22[i] = (TH1F*) fhC22[i]->Clone();
286 if (fhC33[i]) target.fhC33[i] = (TH1F*) fhC33[i]->Clone();
287 if (fhC44[i]) target.fhC44[i] = (TH1F*) fhC44[i]->Clone();
288 if (fhC55[i]) target.fhC55[i] = (TH1F*) fhC55[i]->Clone();
289
290 if (fhDXY[i]) target.fhDXY[i] = (TH1F*) fhDXY[i]->Clone();
291 if (fhDZ[i]) target.fhDZ[i] = (TH1F*) fhDZ[i]->Clone();
292 if (fhDXYvsDZ[i]) target.fhDXYvsDZ[i] = (TH2F*) fhDXYvsDZ[i]->Clone();
293
294 if (fhDXYNormalized[i]) target.fhDXYNormalized[i] = (TH1F*) fhDXYNormalized[i]->Clone();
295 if (fhDZNormalized[i]) target.fhDZNormalized[i] = (TH1F*) fhDZNormalized[i]->Clone();
296 if (fhDXYvsDZNormalized[i]) target.fhDXYvsDZNormalized[i] = (TH2F*) fhDXYvsDZNormalized[i]->Clone();
297 }
298
299 if (fhCutStatistics) target.fhCutStatistics = (TH1F*) fhCutStatistics->Clone();
300 if (fhCutCorrelation) target.fhCutCorrelation = (TH2F*) fhCutCorrelation->Clone();
0b75bef2 301
ebd60d8e 302 TObject::Copy(c);
0b75bef2 303}
304
0b75bef2 305//____________________________________________________________________
2b9019e4 306Float_t AliESDtrackCuts::GetSigmaToVertex(AliESDtrack* esdTrack)
307{
308 //
309
310 Float_t b[2];
311 Float_t bRes[2];
312 Float_t bCov[3];
313 esdTrack->GetImpactParameters(b,bCov);
314 if (bCov[0]<=0 || bCov[2]<=0) {
315 AliDebug(1, "Estimated b resolution lower or equal zero!");
316 bCov[0]=0; bCov[2]=0;
317 }
318 bRes[0] = TMath::Sqrt(bCov[0]);
319 bRes[1] = TMath::Sqrt(bCov[2]);
320
321 // -----------------------------------
322 // How to get to a n-sigma cut?
323 //
324 // The accumulated statistics from 0 to d is
325 //
326 // -> Erf(d/Sqrt(2)) for a 1-dim gauss (d = n_sigma)
327 // -> 1 - Exp(-d**2) for a 2-dim gauss (d*d = dx*dx + dy*dy != n_sigma)
328 //
329 // It means that for a 2-dim gauss: n_sigma(d) = Sqrt(2)*ErfInv(1 - Exp((-x**2)/2)
330 // Can this be expressed in a different way?
331 //
332 //
333 // FIX: I don't think this is correct!!! Keeping d as n_sigma for now...
334
335 if (bRes[0] == 0 || bRes[1] ==0)
336 return -1;
337
338 Float_t d = TMath::Sqrt(TMath::Power(b[0]/bRes[0],2) + TMath::Power(b[1]/bRes[1],2));
339
340 // stupid rounding problem screws up everything:
341 // if d is too big, TMath::Exp(...) gets 0, and TMath::ErfInverse(1) that should be infinite, gets 0 :(
342 if (TMath::Exp(-d * d / 2) < 1e-10)
343 return 1000;
344
345 d = TMath::ErfInverse(1 - TMath::Exp(-d * d / 2)) * TMath::Sqrt(2);
346 return d;
347}
348
349//____________________________________________________________________
350Bool_t
0b75bef2 351AliESDtrackCuts::AcceptTrack(AliESDtrack* esdTrack) {
352 //
353 // figure out if the tracks survives all the track cuts defined
354 //
ab2c1f0d 355 // the different quality parameter and kinematic values are first
356 // retrieved from the track. then it is found out what cuts the
357 // track did not survive and finally the cuts are imposed.
0b75bef2 358
1ae6c515 359
360
0b75bef2 361 UInt_t status = esdTrack->GetStatus();
ebd60d8e 362
363 // dummy array
364 Int_t fIdxInt[200];
365
0b75bef2 366 // getting quality parameters from the ESD track
367 Int_t nClustersITS = esdTrack->GetITSclusters(fIdxInt);
368 Int_t nClustersTPC = esdTrack->GetTPCclusters(fIdxInt);
369
1ae6c515 370
371
0b75bef2 372 Float_t chi2PerClusterITS = -1;
373 Float_t chi2PerClusterTPC = -1;
374 if (nClustersITS!=0)
375 chi2PerClusterITS = esdTrack->GetITSchi2()/Float_t(nClustersITS);
376 if (nClustersTPC!=0)
377 chi2PerClusterTPC = esdTrack->GetTPCchi2()/Float_t(nClustersTPC);
378
379 Double_t extCov[15];
ebd60d8e 380 esdTrack->GetExternalCovariance(extCov);
0b75bef2 381
382 // getting the track to vertex parameters
2b9019e4 383 Float_t nSigmaToVertex = GetSigmaToVertex(esdTrack);
0b75bef2 384
2b9019e4 385 // getting the kinematic variables of the track
0b75bef2 386 // (assuming the mass is known)
387 Double_t p[3];
388 esdTrack->GetPxPyPz(p);
389 Float_t momentum = TMath::Sqrt(TMath::Power(p[0],2) + TMath::Power(p[1],2) + TMath::Power(p[2],2));
390 Float_t pt = TMath::Sqrt(TMath::Power(p[0],2) + TMath::Power(p[1],2));
391 Float_t energy = TMath::Sqrt(TMath::Power(esdTrack->GetMass(),2) + TMath::Power(momentum,2));
392
1ae6c515 393
0b75bef2 394 //y-eta related calculations
395 Float_t eta = -100.;
396 Float_t y = -100.;
397 if((momentum != TMath::Abs(p[2]))&&(momentum != 0))
398 eta = 0.5*TMath::Log((momentum + p[2])/(momentum - p[2]));
399 if((energy != TMath::Abs(p[2]))&&(momentum != 0))
400 y = 0.5*TMath::Log((energy + p[2])/(energy - p[2]));
401
402
403 //########################################################################
404 // cut the track?
405
ebd60d8e 406 Bool_t cuts[kNCuts];
407 for (Int_t i=0; i<kNCuts; i++) cuts[i]=kFALSE;
0b75bef2 408
409 // track quality cuts
ab2c1f0d 410 if (fCutRequireTPCRefit && (status&AliESDtrack::kTPCrefit)==0)
0b75bef2 411 cuts[0]=kTRUE;
ab2c1f0d 412 if (fCutRequireITSRefit && (status&AliESDtrack::kITSrefit)==0)
0b75bef2 413 cuts[1]=kTRUE;
2b9019e4 414 if (nClustersTPC<fCutMinNClusterTPC)
0b75bef2 415 cuts[2]=kTRUE;
ab2c1f0d 416 if (nClustersITS<fCutMinNClusterITS)
0b75bef2 417 cuts[3]=kTRUE;
ab2c1f0d 418 if (chi2PerClusterTPC>fCutMaxChi2PerClusterTPC)
0b75bef2 419 cuts[4]=kTRUE;
ab2c1f0d 420 if (chi2PerClusterITS>fCutMaxChi2PerClusterITS)
0b75bef2 421 cuts[5]=kTRUE;
ab2c1f0d 422 if (extCov[0] > fCutMaxC11)
0b75bef2 423 cuts[6]=kTRUE;
ab2c1f0d 424 if (extCov[2] > fCutMaxC22)
0b75bef2 425 cuts[7]=kTRUE;
ab2c1f0d 426 if (extCov[5] > fCutMaxC33)
0b75bef2 427 cuts[8]=kTRUE;
ab2c1f0d 428 if (extCov[9] > fCutMaxC44)
0b75bef2 429 cuts[9]=kTRUE;
ab2c1f0d 430 if (extCov[14] > fCutMaxC55)
0b75bef2 431 cuts[10]=kTRUE;
2b9019e4 432 if (nSigmaToVertex > fCutNsigmaToVertex)
0b75bef2 433 cuts[11] = kTRUE;
434 // if n sigma could not be calculated
10ebe68d 435 if (nSigmaToVertex<0 && fCutSigmaToVertexRequired)
0b75bef2 436 cuts[12]=kTRUE;
ab2c1f0d 437 if (!fCutAcceptKinkDaughters && esdTrack->GetKinkIndex(0)>0)
0b75bef2 438 cuts[13]=kTRUE;
439 // track kinematics cut
440 if((momentum < fPMin) || (momentum > fPMax))
441 cuts[14]=kTRUE;
442 if((pt < fPtMin) || (pt > fPtMax))
443 cuts[15] = kTRUE;
444 if((p[0] < fPxMin) || (p[0] > fPxMax))
445 cuts[16] = kTRUE;
446 if((p[1] < fPyMin) || (p[1] > fPyMax))
447 cuts[17] = kTRUE;
2b9019e4 448 if((p[2] < fPzMin) || (p[2] > fPzMax))
0b75bef2 449 cuts[18] = kTRUE;
450 if((eta < fEtaMin) || (eta > fEtaMax))
451 cuts[19] = kTRUE;
452 if((y < fRapMin) || (y > fRapMax))
453 cuts[20] = kTRUE;
454
455 Bool_t cut=kFALSE;
ebd60d8e 456 for (Int_t i=0; i<kNCuts; i++)
0b75bef2 457 if (cuts[i]) cut = kTRUE;
458
459 //########################################################################
460 // filling histograms
461 if (fHistogramsOn) {
f58f1a93 462 fhCutStatistics->Fill(fhCutStatistics->GetBinCenter(fhCutStatistics->GetXaxis()->FindBin("n tracks")));
0b75bef2 463
464 if (cut)
f58f1a93 465 fhCutStatistics->Fill(fhCutStatistics->GetBinCenter(fhCutStatistics->GetXaxis()->FindBin("n cut tracks")));
0b75bef2 466
ebd60d8e 467 for (Int_t i=0; i<kNCuts; i++) {
0b75bef2 468 if (cuts[i])
ab2c1f0d 469 fhCutStatistics->Fill(fhCutStatistics->GetBinCenter(fhCutStatistics->GetXaxis()->FindBin(fgkCutNames[i])));
0b75bef2 470
ebd60d8e 471 for (Int_t j=i; j<kNCuts; j++) {
0b75bef2 472 if (cuts[i] && cuts[j]) {
ab2c1f0d 473 Float_t x = fhCutCorrelation->GetXaxis()->GetBinCenter(fhCutCorrelation->GetXaxis()->FindBin(fgkCutNames[i]));
474 Float_t y = fhCutCorrelation->GetYaxis()->GetBinCenter(fhCutCorrelation->GetYaxis()->FindBin(fgkCutNames[j]));
f58f1a93 475 fhCutCorrelation->Fill(x,y);
0b75bef2 476 }
477 }
478 }
479
480
2b9019e4 481 fhNClustersITS[0]->Fill(nClustersITS);
482 fhNClustersTPC[0]->Fill(nClustersTPC);
f58f1a93 483 fhChi2PerClusterITS[0]->Fill(chi2PerClusterITS);
2b9019e4 484 fhChi2PerClusterTPC[0]->Fill(chi2PerClusterTPC);
485
486 fhC11[0]->Fill(extCov[0]);
487 fhC22[0]->Fill(extCov[2]);
488 fhC33[0]->Fill(extCov[5]);
489 fhC44[0]->Fill(extCov[9]);
490 fhC55[0]->Fill(extCov[14]);
491
492 Float_t b[2];
493 Float_t bRes[2];
494 Float_t bCov[3];
495 esdTrack->GetImpactParameters(b,bCov);
496 if (bCov[0]<=0 || bCov[2]<=0) {
497 AliDebug(1, "Estimated b resolution lower or equal zero!");
498 bCov[0]=0; bCov[2]=0;
499 }
500 bRes[0] = TMath::Sqrt(bCov[0]);
501 bRes[1] = TMath::Sqrt(bCov[2]);
502
503 fhDZ[0]->Fill(b[1]);
504 fhDXY[0]->Fill(b[0]);
f58f1a93 505 fhDXYvsDZ[0]->Fill(b[1],b[0]);
0b75bef2 506
507 if (bRes[0]!=0 && bRes[1]!=0) {
10ebe68d 508 fhDZNormalized[0]->Fill(b[1]/bRes[1]);
2b9019e4 509 fhDXYNormalized[0]->Fill(b[0]/bRes[0]);
f58f1a93 510 fhDXYvsDZNormalized[0]->Fill(b[1]/bRes[1], b[0]/bRes[0]);
0b75bef2 511 }
512 }
513
2b9019e4 514 //########################################################################
0b75bef2 515 // cut the track!
516 if (cut) return kFALSE;
517
2b9019e4 518 //########################################################################
0b75bef2 519 // filling histograms after cut
520 if (fHistogramsOn) {
2b9019e4 521 fhNClustersITS[1]->Fill(nClustersITS);
522 fhNClustersTPC[1]->Fill(nClustersTPC);
f58f1a93 523 fhChi2PerClusterITS[1]->Fill(chi2PerClusterITS);
2b9019e4 524 fhChi2PerClusterTPC[1]->Fill(chi2PerClusterTPC);
525
526 fhC11[1]->Fill(extCov[0]);
527 fhC22[1]->Fill(extCov[2]);
10ebe68d 528 fhC33[1]->Fill(extCov[5]);
2b9019e4 529 fhC44[1]->Fill(extCov[9]);
530 fhC55[1]->Fill(extCov[14]);
531
532 Float_t b[2];
533 Float_t bRes[2];
534 Float_t bCov[3];
535 esdTrack->GetImpactParameters(b,bCov);
536 if (bCov[0]<=0 || bCov[2]<=0) {
537 AliDebug(1, "Estimated b resolution lower or equal zero!");
538 bCov[0]=0; bCov[2]=0;
539 }
540 bRes[0] = TMath::Sqrt(bCov[0]);
541 bRes[1] = TMath::Sqrt(bCov[2]);
542
543 fhDZ[1]->Fill(b[1]);
544 fhDXY[1]->Fill(b[0]);
f58f1a93 545 fhDXYvsDZ[1]->Fill(b[1],b[0]);
0b75bef2 546
10ebe68d 547 if (bRes[0]!=0 && bRes[1]!=0)
548 {
549 fhDZNormalized[1]->Fill(b[1]/bRes[1]);
550 fhDXYNormalized[1]->Fill(b[0]/bRes[0]);
551 fhDXYvsDZNormalized[1]->Fill(b[1]/bRes[1], b[0]/bRes[0]);
552 }
0b75bef2 553 }
2b9019e4 554
0b75bef2 555 return kTRUE;
556}
557
558//____________________________________________________________________
559TObjArray*
ebd60d8e 560AliESDtrackCuts::GetAcceptedTracks(AliESD* esd)
561{
562 //
0b75bef2 563 // returns an array of all tracks that pass the cuts
ebd60d8e 564 //
565
566 TObjArray* acceptedTracks = new TObjArray();
c5858666 567
0b75bef2 568 // loop over esd tracks
569 for (Int_t iTrack = 0; iTrack < esd->GetNumberOfTracks(); iTrack++) {
570 AliESDtrack* track = esd->GetTrack(iTrack);
c5858666 571
ebd60d8e 572 if (AcceptTrack(track))
573 acceptedTracks->Add(track);
0b75bef2 574 }
575
ebd60d8e 576 return acceptedTracks;
0b75bef2 577}
578
c5858666 579//____________________________________________________________________
580Int_t
581AliESDtrackCuts::CountAcceptedTracks(AliESD* esd)
582{
583 //
584 // returns an the number of tracks that pass the cuts
585 //
586
587 Int_t count = 0;
588
589 // loop over esd tracks
590 for (Int_t iTrack = 0; iTrack < esd->GetNumberOfTracks(); iTrack++) {
591 AliESDtrack* track = esd->GetTrack(iTrack);
592
593 if (AcceptTrack(track))
594 count++;
595 }
596
597 return count;
598}
599
0b75bef2 600//____________________________________________________________________
f58f1a93 601 void AliESDtrackCuts::DefineHistograms(Int_t color) {
ab2c1f0d 602 //
603 // diagnostics histograms are defined
604 //
0b75bef2 605
f58f1a93 606 fHistogramsOn=kTRUE;
0b75bef2 607
ab2c1f0d 608 //###################################################################################
f58f1a93 609 // defining histograms
0b75bef2 610
ebd60d8e 611 fhCutStatistics = new TH1F("cut_statistics","cut statistics",kNCuts+4,-0.5,kNCuts+3.5);
0b75bef2 612
f58f1a93 613 fhCutStatistics->GetXaxis()->SetBinLabel(1,"n tracks");
614 fhCutStatistics->GetXaxis()->SetBinLabel(2,"n cut tracks");
0b75bef2 615
ebd60d8e 616 fhCutCorrelation = new TH2F("cut_correlation","cut correlation",kNCuts,-0.5,kNCuts-0.5,kNCuts,-0.5,kNCuts-0.5);;
0b75bef2 617
ebd60d8e 618 for (Int_t i=0; i<kNCuts; i++) {
ab2c1f0d 619 fhCutStatistics->GetXaxis()->SetBinLabel(i+4,fgkCutNames[i]);
620 fhCutCorrelation->GetXaxis()->SetBinLabel(i+1,fgkCutNames[i]);
621 fhCutCorrelation->GetYaxis()->SetBinLabel(i+1,fgkCutNames[i]);
f58f1a93 622 }
623
624 fhCutStatistics ->SetLineColor(color);
625 fhCutCorrelation ->SetLineColor(color);
626 fhCutStatistics ->SetLineWidth(2);
627 fhCutCorrelation ->SetLineWidth(2);
628
0b75bef2 629 Char_t str[256];
630 for (Int_t i=0; i<2; i++) {
631 if (i==0) sprintf(str," ");
632 else sprintf(str,"_cut");
633
ebd60d8e 634 fhNClustersITS[i] = new TH1F(Form("nClustersITS%s",str),"",8,-0.5,7.5);
635 fhNClustersTPC[i] = new TH1F(Form("nClustersTPC%s",str),"",165,-0.5,164.5);
636 fhChi2PerClusterITS[i] = new TH1F(Form("chi2PerClusterITS%s",str),"",500,0,10);
637 fhChi2PerClusterTPC[i] = new TH1F(Form("chi2PerClusterTPC%s",str),"",500,0,10);
638
639 fhC11[i] = new TH1F(Form("covMatrixDiagonal11%s",str),"",1000,0,5);
640 fhC22[i] = new TH1F(Form("covMatrixDiagonal22%s",str),"",1000,0,5);
641 fhC33[i] = new TH1F(Form("covMatrixDiagonal33%s",str),"",1000,0,0.5);
642 fhC44[i] = new TH1F(Form("covMatrixDiagonal44%s",str),"",1000,0,5);
643 fhC55[i] = new TH1F(Form("covMatrixDiagonal55%s",str),"",1000,0,5);
644
645 fhDXY[i] = new TH1F(Form("dXY%s",str),"",500,-10,10);
646 fhDZ[i] = new TH1F(Form("dZ%s",str),"",500,-10,10);
647 fhDXYvsDZ[i] = new TH2F(Form("dXYvsDZ%s",str),"",200,-10,10,200,-10,10);
648
649 fhDXYNormalized[i] = new TH1F(Form("dXYNormalized%s",str),"",500,-10,10);
650 fhDZNormalized[i] = new TH1F(Form("dZNormalized%s",str),"",500,-10,10);
651 fhDXYvsDZNormalized[i] = new TH2F(Form("dXYvsDZNormalized%s",str),"",200,-10,10,200,-10,10);
652
653
654 fhNClustersITS[i]->SetXTitle("n ITS clusters");
655 fhNClustersTPC[i]->SetXTitle("n TPC clusters");
656 fhChi2PerClusterITS[i]->SetXTitle("#Chi^{2} per ITS cluster");
657 fhChi2PerClusterTPC[i]->SetXTitle("#Chi^{2} per TPC cluster");
658
659 fhC11[i]->SetXTitle("cov 11 : #sigma_{y}^{2} [cm^{2}]");
660 fhC22[i]->SetXTitle("cov 22 : #sigma_{z}^{2} [cm^{2}]");
661 fhC33[i]->SetXTitle("cov 33 : #sigma_{sin(#phi)}^{2}");
662 fhC44[i]->SetXTitle("cov 44 : #sigma_{tan(#theta_{dip})}^{2}");
663 fhC55[i]->SetXTitle("cov 55 : #sigma_{1/p_{T}}^{2} [(c/GeV)^2]");
664
665 fhDXY[i]->SetXTitle("transverse impact parameter");
666 fhDZ[i]->SetXTitle("longitudinal impact parameter");
667 fhDXYvsDZ[i]->SetXTitle("longitudinal impact parameter");
668 fhDXYvsDZ[i]->SetYTitle("transverse impact parameter");
669
670 fhDXYNormalized[i]->SetXTitle("normalized trans impact par");
671 fhDZNormalized[i]->SetXTitle("normalized long impact par");
672 fhDXYvsDZNormalized[i]->SetXTitle("normalized long impact par");
673 fhDXYvsDZNormalized[i]->SetYTitle("normalized trans impact par");
674
675 fhNClustersITS[i]->SetLineColor(color); fhNClustersITS[i]->SetLineWidth(2);
676 fhNClustersTPC[i]->SetLineColor(color); fhNClustersTPC[i]->SetLineWidth(2);
677 fhChi2PerClusterITS[i]->SetLineColor(color); fhChi2PerClusterITS[i]->SetLineWidth(2);
678 fhChi2PerClusterTPC[i]->SetLineColor(color); fhChi2PerClusterTPC[i]->SetLineWidth(2);
679
680 fhC11[i]->SetLineColor(color); fhC11[i]->SetLineWidth(2);
681 fhC22[i]->SetLineColor(color); fhC22[i]->SetLineWidth(2);
682 fhC33[i]->SetLineColor(color); fhC33[i]->SetLineWidth(2);
683 fhC44[i]->SetLineColor(color); fhC44[i]->SetLineWidth(2);
684 fhC55[i]->SetLineColor(color); fhC55[i]->SetLineWidth(2);
685
686 fhDXY[i]->SetLineColor(color); fhDXY[i]->SetLineWidth(2);
687 fhDZ[i]->SetLineColor(color); fhDZ[i]->SetLineWidth(2);
688
689 fhDXYNormalized[i]->SetLineColor(color); fhDXYNormalized[i]->SetLineWidth(2);
690 fhDZNormalized[i]->SetLineColor(color); fhDZNormalized[i]->SetLineWidth(2);
0b75bef2 691 }
692}
693
694//____________________________________________________________________
695void
49dc84d9 696AliESDtrackCuts::Print(const Option_t*) const {
ab2c1f0d 697 //
698 // print method - still to be implemented
699 //
0b75bef2 700
701 AliInfo("AliESDtrackCuts...");
702}
703
704
705//____________________________________________________________________
f58f1a93 706void AliESDtrackCuts::SaveHistograms(Char_t* dir) {
ab2c1f0d 707 //
708 // saves the histograms in a directory (dir)
709 //
710
0b75bef2 711
712 if (!fHistogramsOn) {
713 AliDebug(0, "Histograms not on - cannot save histograms!!!");
714 return;
715 }
716
717 gDirectory->mkdir(dir);
718 gDirectory->cd(dir);
719
720 gDirectory->mkdir("before_cuts");
721 gDirectory->mkdir("after_cuts");
722
f58f1a93 723 fhCutStatistics->Write();
724 fhCutCorrelation->Write();
0b75bef2 725
726 for (Int_t i=0; i<2; i++) {
727 if (i==0)
728 gDirectory->cd("before_cuts");
729 else
730 gDirectory->cd("after_cuts");
731
f58f1a93 732 fhNClustersITS[i] ->Write();
733 fhNClustersTPC[i] ->Write();
734 fhChi2PerClusterITS[i] ->Write();
735 fhChi2PerClusterTPC[i] ->Write();
0b75bef2 736
f58f1a93 737 fhC11[i] ->Write();
738 fhC22[i] ->Write();
739 fhC33[i] ->Write();
740 fhC44[i] ->Write();
741 fhC55[i] ->Write();
742
743 fhDXY[i] ->Write();
744 fhDZ[i] ->Write();
745 fhDXYvsDZ[i] ->Write();
0b75bef2 746
f58f1a93 747 fhDXYNormalized[i] ->Write();
748 fhDZNormalized[i] ->Write();
749 fhDXYvsDZNormalized[i] ->Write();
0b75bef2 750
751 gDirectory->cd("../");
752 }
753
754 gDirectory->cd("../");
755}
756
757
758