AliTPCcalibLaser.h - Adding run number
[u/mrichter/AliRoot.git] / TPC / AliTPCseed.cxx
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81e97e0d 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
17
18
19//-----------------------------------------------------------------
20// Implementation of the TPC seed class
21// This class is used by the AliTPCtrackerMI class
22// Origin: Marian Ivanov, CERN, Marian.Ivanov@cern.ch
23//-----------------------------------------------------------------
24#include "TClonesArray.h"
25#include "AliTPCseed.h"
3f82c4f2 26#include "AliTPCReconstructor.h"
0a65832b 27#include "AliTPCClusterParam.h"
81e97e0d 28
29ClassImp(AliTPCseed)
30
31
32
32fab534 33AliTPCseed::AliTPCseed():
34 AliTPCtrack(),
35 fEsd(0x0),
2928bdf0 36 fClusterOwner(kFALSE),
32fab534 37 fRow(0),
38 fSector(-1),
39 fRelativeSector(-1),
40 fCurrentSigmaY2(1e10),
41 fCurrentSigmaZ2(1e10),
e0e13b88 42 fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30%
43 fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30%
c07cb486 44 fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2%
45 fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2%
e0e13b88 46 //
32fab534 47 fErrorY2(1e10),
48 fErrorZ2(1e10),
49 fCurrentCluster(0x0),
50 fCurrentClusterIndex1(-1),
51 fInDead(kFALSE),
52 fIsSeeding(kFALSE),
53 fNoCluster(0),
54 fSort(0),
55 fBSigned(kFALSE),
56 fSeedType(0),
57 fSeed1(-1),
58 fSeed2(-1),
59 fMAngular(0),
19b00333 60 fCircular(0),
61 fClusterMap(159),
62 fSharedMap(159)
32fab534 63{
81e97e0d 64 //
5c09947e 65 for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3);
81e97e0d 66 for (Int_t i=0;i<160;i++) fClusterPointer[i]=0;
67 for (Int_t i=0;i<3;i++) fKinkIndexes[i]=0;
32fab534 68 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=0.2;
69 for (Int_t i=0;i<4;i++) {
70 fDEDX[i] = 0.;
71 fSDEDX[i] = 1e10;
72 fNCDEDX[i] = 0;
73 }
74 for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1;
bfb57b6c 75 // for (Int_t i=0;i<160;i++) fClusterMap[i]=kFALSE;
76 //for (Int_t i=0;i<160;i++) fSharedMap[i]=kFALSE;
77 fClusterMap.ResetAllBits(kFALSE);
78 fSharedMap.ResetAllBits(kFALSE);
79
81e97e0d 80}
32fab534 81
2928bdf0 82AliTPCseed::AliTPCseed(const AliTPCseed &s, Bool_t clusterOwner):
32fab534 83 AliTPCtrack(s),
84 fEsd(0x0),
2928bdf0 85 fClusterOwner(clusterOwner),
32fab534 86 fRow(0),
87 fSector(-1),
88 fRelativeSector(-1),
c07cb486 89 fCurrentSigmaY2(-1),
90 fCurrentSigmaZ2(-1),
e0e13b88 91 fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30%
92 fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30%
c07cb486 93 fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2%
94 fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2%
32fab534 95 fErrorY2(1e10),
96 fErrorZ2(1e10),
97 fCurrentCluster(0x0),
98 fCurrentClusterIndex1(-1),
99 fInDead(kFALSE),
100 fIsSeeding(kFALSE),
101 fNoCluster(0),
102 fSort(0),
103 fBSigned(kFALSE),
104 fSeedType(0),
105 fSeed1(-1),
106 fSeed2(-1),
107 fMAngular(0),
19b00333 108 fCircular(0),
109 fClusterMap(s.fClusterMap),
110 fSharedMap(s.fSharedMap)
32fab534 111{
81e97e0d 112 //---------------------
113 // dummy copy constructor
114 //-------------------------
2928bdf0 115 for (Int_t i=0;i<160;i++) {
116 fClusterPointer[i]=0;
117 if (fClusterOwner){
118 if (s.fClusterPointer[i])
119 fClusterPointer[i] = new AliTPCclusterMI(*(s.fClusterPointer[i]));
120 }else{
121 fClusterPointer[i] = s.fClusterPointer[i];
122 }
123 fTrackPoints[i] = s.fTrackPoints[i];
124 }
81e97e0d 125 for (Int_t i=0;i<160;i++) fIndex[i] = s.fIndex[i];
5c09947e 126 for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=s.fTPCr[i];
127 for (Int_t i=0;i<4;i++) {
128 fDEDX[i] = s.fDEDX[i];
129 fSDEDX[i] = s.fSDEDX[i];
130 fNCDEDX[i] = s.fNCDEDX[i];
131 }
132 for (Int_t i=0;i<12;i++) fOverlapLabels[i] = s.fOverlapLabels[i];
19b00333 133
81e97e0d 134}
5c09947e 135
136
32fab534 137AliTPCseed::AliTPCseed(const AliTPCtrack &t):
138 AliTPCtrack(t),
139 fEsd(0x0),
2928bdf0 140 fClusterOwner(kFALSE),
32fab534 141 fRow(0),
142 fSector(-1),
143 fRelativeSector(-1),
c07cb486 144 fCurrentSigmaY2(-1),
145 fCurrentSigmaZ2(-1),
e0e13b88 146 fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30%
147 fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30%
c07cb486 148 fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2%
149 fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2%
32fab534 150 fErrorY2(1e10),
151 fErrorZ2(1e10),
152 fCurrentCluster(0x0),
153 fCurrentClusterIndex1(-1),
154 fInDead(kFALSE),
155 fIsSeeding(kFALSE),
156 fNoCluster(0),
157 fSort(0),
158 fBSigned(kFALSE),
159 fSeedType(0),
160 fSeed1(-1),
161 fSeed2(-1),
162 fMAngular(0),
19b00333 163 fCircular(0),
164 fClusterMap(159),
165 fSharedMap(159)
32fab534 166{
81e97e0d 167 //
32fab534 168 // Constructor from AliTPCtrack
169 //
170 fFirstPoint =0;
105b1b81 171 for (Int_t i=0;i<5;i++) fTPCr[i]=0.2;
81e97e0d 172 for (Int_t i=0;i<160;i++) {
173 fClusterPointer[i] = 0;
174 Int_t index = t.GetClusterIndex(i);
175 if (index>=-1){
176 SetClusterIndex2(i,index);
177 }
178 else{
179 SetClusterIndex2(i,-3);
180 }
181 }
32fab534 182 for (Int_t i=0;i<4;i++) {
183 fDEDX[i] = 0.;
184 fSDEDX[i] = 1e10;
185 fNCDEDX[i] = 0;
186 }
187 for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1;
bfb57b6c 188
189 //for (Int_t i=0;i<160;i++) fClusterMap[i]=kFALSE;
190 //for (Int_t i=0;i<160;i++) fSharedMap[i]=kFALSE;
191 fClusterMap.ResetAllBits(kFALSE);
192 fSharedMap.ResetAllBits(kFALSE);
193
81e97e0d 194}
195
6c94f330 196AliTPCseed::AliTPCseed(Double_t xr, Double_t alpha, const Double_t xx[5],
197 const Double_t cc[15], Int_t index):
198 AliTPCtrack(xr, alpha, xx, cc, index),
32fab534 199 fEsd(0x0),
2928bdf0 200 fClusterOwner(kFALSE),
32fab534 201 fRow(0),
202 fSector(-1),
203 fRelativeSector(-1),
c07cb486 204 fCurrentSigmaY2(-1),
205 fCurrentSigmaZ2(-1),
e0e13b88 206 fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30%
207 fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30%
c07cb486 208 fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2%
209 fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2%
32fab534 210 fErrorY2(1e10),
211 fErrorZ2(1e10),
212 fCurrentCluster(0x0),
213 fCurrentClusterIndex1(-1),
214 fInDead(kFALSE),
215 fIsSeeding(kFALSE),
216 fNoCluster(0),
217 fSort(0),
218 fBSigned(kFALSE),
219 fSeedType(0),
220 fSeed1(-1),
221 fSeed2(-1),
222 fMAngular(0),
19b00333 223 fCircular(0),
224 fClusterMap(159),
225 fSharedMap(159)
32fab534 226{
227 //
228 // Constructor
81e97e0d 229 //
32fab534 230 fFirstPoint =0;
5c09947e 231 for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3);
81e97e0d 232 for (Int_t i=0;i<160;i++) fClusterPointer[i]=0;
81e97e0d 233 for (Int_t i=0;i<5;i++) fTPCr[i]=0.2;
32fab534 234 for (Int_t i=0;i<4;i++) {
235 fDEDX[i] = 0.;
236 fSDEDX[i] = 1e10;
237 fNCDEDX[i] = 0;
238 }
239 for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1;
81e97e0d 240}
241
242AliTPCseed::~AliTPCseed(){
243 //
244 // destructor
81e97e0d 245 fNoCluster =0;
2928bdf0 246 if (fClusterOwner){
247 for (Int_t icluster=0; icluster<160; icluster++){
248 delete fClusterPointer[icluster];
249 }
250 }
bfb57b6c 251
81e97e0d 252}
179c6296 253//_________________________________________________
316c6cd9 254AliTPCseed & AliTPCseed::operator=(const AliTPCseed &param)
179c6296 255{
256 //
316c6cd9 257 // assignment operator
179c6296 258 //
316c6cd9 259 if(this!=&param){
260 AliTPCtrack::operator=(param);
261 fEsd =param.fEsd;
262 for(Int_t i = 0;i<160;++i)fClusterPointer[i] = param.fClusterPointer[i]; // this is not allocated by AliTPCSeed
263 fClusterOwner = param.fClusterOwner;
264 // leave out fPoint, they are also not copied in the copy ctor...
265 // but deleted in the dtor... strange...
316c6cd9 266 fRow = param.fRow;
267 fSector = param.fSector;
268 fRelativeSector = param.fRelativeSector;
269 fCurrentSigmaY2 = param.fCurrentSigmaY2;
270 fCurrentSigmaZ2 = param.fCurrentSigmaZ2;
271 fErrorY2 = param.fErrorY2;
272 fErrorZ2 = param.fErrorZ2;
273 fCurrentCluster = param.fCurrentCluster; // this is not allocated by AliTPCSeed
274 fCurrentClusterIndex1 = param.fCurrentClusterIndex1;
275 fInDead = param.fInDead;
276 fIsSeeding = param.fIsSeeding;
277 fNoCluster = param.fNoCluster;
278 fSort = param.fSort;
279 fBSigned = param.fBSigned;
280 for(Int_t i = 0;i<4;++i){
281 fDEDX[i] = param.fDEDX[i];
282 fSDEDX[i] = param.fSDEDX[i];
283 fNCDEDX[i] = param.fNCDEDX[i];
284 }
285 for(Int_t i = 0;i<AliPID::kSPECIES;++i)fTPCr[i] = param.fTPCr[i];
286
287 fSeedType = param.fSeedType;
288 fSeed1 = param.fSeed1;
289 fSeed2 = param.fSeed2;
290 for(Int_t i = 0;i<12;++i)fOverlapLabels[i] = param.fOverlapLabels[i];
291 fMAngular = param.fMAngular;
292 fCircular = param.fCircular;
293 for(int i = 0;i<160;++i)fTrackPoints[i] = param.fTrackPoints[i];
294 fClusterMap = param.fClusterMap;
295 fSharedMap = param.fSharedMap;
296 }
179c6296 297 return (*this);
298}
299//____________________________________________________
81e97e0d 300AliTPCTrackerPoint * AliTPCseed::GetTrackPoint(Int_t i)
301{
302 //
303 //
304 return &fTrackPoints[i];
305}
306
81e97e0d 307
308
309Double_t AliTPCseed::GetDensityFirst(Int_t n)
310{
311 //
312 //
313 // return cluster for n rows bellow first point
314 Int_t nfoundable = 1;
315 Int_t nfound = 1;
316 for (Int_t i=fLastPoint-1;i>0&&nfoundable<n; i--){
317 Int_t index = GetClusterIndex2(i);
318 if (index!=-1) nfoundable++;
319 if (index>0) nfound++;
320 }
321 if (nfoundable<n) return 0;
322 return Double_t(nfound)/Double_t(nfoundable);
323
324}
325
326
327void AliTPCseed::GetClusterStatistic(Int_t first, Int_t last, Int_t &found, Int_t &foundable, Int_t &shared, Bool_t plus2)
328{
329 // get cluster stat. on given region
330 //
331 found = 0;
332 foundable = 0;
333 shared =0;
334 for (Int_t i=first;i<last; i++){
335 Int_t index = GetClusterIndex2(i);
336 if (index!=-1) foundable++;
6d493ea0 337 if (index&0x8000) continue;
81e97e0d 338 if (fClusterPointer[i]) {
339 found++;
340 }
341 else
342 continue;
343
344 if (fClusterPointer[i]->IsUsed(10)) {
345 shared++;
346 continue;
347 }
348 if (!plus2) continue; //take also neighborhoud
349 //
350 if ( (i>0) && fClusterPointer[i-1]){
351 if (fClusterPointer[i-1]->IsUsed(10)) {
352 shared++;
353 continue;
354 }
355 }
356 if ( fClusterPointer[i+1]){
357 if (fClusterPointer[i+1]->IsUsed(10)) {
358 shared++;
359 continue;
360 }
361 }
362
363 }
364 //if (shared>found){
365 //Error("AliTPCseed::GetClusterStatistic","problem\n");
366 //}
367}
368
369
370
371
372
373void AliTPCseed::Reset(Bool_t all)
374{
375 //
376 //
377 SetNumberOfClusters(0);
378 fNFoundable = 0;
379 SetChi2(0);
6c94f330 380 ResetCovariance(10.);
81e97e0d 381 /*
382 if (fTrackPoints){
383 for (Int_t i=0;i<8;i++){
384 delete [] fTrackPoints[i];
385 }
386 delete fTrackPoints;
387 fTrackPoints =0;
388 }
389 */
390
391 if (all){
392 for (Int_t i=0;i<200;i++) SetClusterIndex2(i,-3);
393 for (Int_t i=0;i<160;i++) fClusterPointer[i]=0;
394 }
395
396}
397
398
399void AliTPCseed::Modify(Double_t factor)
400{
401
402 //------------------------------------------------------------------
403 //This function makes a track forget its history :)
404 //------------------------------------------------------------------
405 if (factor<=0) {
6c94f330 406 ResetCovariance(10.);
81e97e0d 407 return;
408 }
6c94f330 409 ResetCovariance(factor);
410
81e97e0d 411 SetNumberOfClusters(0);
412 fNFoundable =0;
413 SetChi2(0);
414 fRemoval = 0;
415 fCurrentSigmaY2 = 0.000005;
416 fCurrentSigmaZ2 = 0.000005;
417 fNoCluster = 0;
418 //fFirstPoint = 160;
419 //fLastPoint = 0;
420}
421
422
423
424
425Int_t AliTPCseed::GetProlongation(Double_t xk, Double_t &y, Double_t & z) const
426{
427 //-----------------------------------------------------------------
428 // This function find proloncation of a track to a reference plane x=xk.
429 // doesn't change internal state of the track
430 //-----------------------------------------------------------------
431
6c94f330 432 Double_t x1=GetX(), x2=x1+(xk-x1), dx=x2-x1;
81e97e0d 433
6c94f330 434 if (TMath::Abs(GetSnp()+GetC()*dx) >= AliTPCReconstructor::GetMaxSnpTrack()) {
81e97e0d 435 return 0;
436 }
437
438 // Double_t y1=fP0, z1=fP1;
6c94f330 439 Double_t c1=GetSnp(), r1=sqrt(1.- c1*c1);
440 Double_t c2=c1 + GetC()*dx, r2=sqrt(1.- c2*c2);
81e97e0d 441
6c94f330 442 y = GetY();
443 z = GetZ();
81e97e0d 444 //y += dx*(c1+c2)/(r1+r2);
445 //z += dx*(c1+c2)/(c1*r2 + c2*r1)*fP3;
446
447 Double_t dy = dx*(c1+c2)/(r1+r2);
448 Double_t dz = 0;
449 //
6c94f330 450 Double_t delta = GetC()*dx*(c1+c2)/(c1*r2 + c2*r1);
81e97e0d 451 /*
452 if (TMath::Abs(delta)>0.0001){
453 dz = fP3*TMath::ASin(delta)/fP4;
454 }else{
455 dz = dx*fP3*(c1+c2)/(c1*r2 + c2*r1);
456 }
457 */
458 // dz = fP3*AliTPCFastMath::FastAsin(delta)/fP4;
6c94f330 459 dz = GetTgl()*TMath::ASin(delta)/GetC();
81e97e0d 460 //
461 y+=dy;
462 z+=dz;
463
464
465 return 1;
466}
467
468
469//_____________________________________________________________________________
af32720d 470Double_t AliTPCseed::GetPredictedChi2(const AliCluster *c) const
81e97e0d 471{
472 //-----------------------------------------------------------------
473 // This function calculates a predicted chi2 increment.
474 //-----------------------------------------------------------------
6c94f330 475 Double_t p[2]={c->GetY(), c->GetZ()};
476 Double_t cov[3]={fErrorY2, 0., fErrorZ2};
477 return AliExternalTrackParam::GetPredictedChi2(p,cov);
81e97e0d 478}
479
81e97e0d 480//_________________________________________________________________________________________
481
482
483Int_t AliTPCseed::Compare(const TObject *o) const {
484 //-----------------------------------------------------------------
485 // This function compares tracks according to the sector - for given sector according z
486 //-----------------------------------------------------------------
487 AliTPCseed *t=(AliTPCseed*)o;
6c94f330 488
81e97e0d 489 if (fSort == 0){
490 if (t->fRelativeSector>fRelativeSector) return -1;
491 if (t->fRelativeSector<fRelativeSector) return 1;
492 Double_t z2 = t->GetZ();
493 Double_t z1 = GetZ();
494 if (z2>z1) return 1;
495 if (z2<z1) return -1;
496 return 0;
497 }
498 else {
499 Float_t f2 =1;
6c23ffed 500 f2 = 1-20*TMath::Sqrt(t->GetSigma1Pt2())/(t->OneOverPt()+0.0066);
81e97e0d 501 if (t->fBConstrain) f2=1.2;
502
503 Float_t f1 =1;
6c23ffed 504 f1 = 1-20*TMath::Sqrt(GetSigma1Pt2())/(OneOverPt()+0.0066);
81e97e0d 505
506 if (fBConstrain) f1=1.2;
507
508 if (t->GetNumberOfClusters()*f2 <GetNumberOfClusters()*f1) return -1;
509 else return +1;
510 }
511}
512
513
514
515
516//_____________________________________________________________________________
70e20dcf 517Bool_t AliTPCseed::Update(const AliCluster *c, Double_t chisq, Int_t index)
6c94f330 518{
81e97e0d 519 //-----------------------------------------------------------------
520 // This function associates a cluster with this track.
521 //-----------------------------------------------------------------
81e97e0d 522 Int_t n=GetNumberOfClusters();
70e20dcf 523 Int_t idx=GetClusterIndex(n); // save the current cluster index
524
525 AliCluster cl(*c); cl.SetSigmaY2(fErrorY2); cl.SetSigmaZ2(fErrorZ2);
526 if (!AliTPCtrack::Update(&cl,chisq,index)) return kFALSE;
e0e13b88 527
528 if (fCMeanSigmaY2p30<0){
529 fCMeanSigmaY2p30= c->GetSigmaY2(); //! current mean sigma Y2 - mean30%
c07cb486 530 fCMeanSigmaZ2p30= c->GetSigmaZ2(); //! current mean sigma Z2 - mean30%
531 fCMeanSigmaY2p30R = 1; //! current mean sigma Y2 - mean5%
532 fCMeanSigmaZ2p30R = 1; //! current mean sigma Z2 - mean5%
e0e13b88 533 }
534 //
535 fCMeanSigmaY2p30= 0.70*fCMeanSigmaY2p30 +0.30*c->GetSigmaY2();
c07cb486 536 fCMeanSigmaZ2p30= 0.70*fCMeanSigmaZ2p30 +0.30*c->GetSigmaZ2();
537 if (fCurrentSigmaY2>0){
538 fCMeanSigmaY2p30R = 0.7*fCMeanSigmaY2p30R +0.3*c->GetSigmaY2()/fCurrentSigmaY2;
539 fCMeanSigmaZ2p30R = 0.7*fCMeanSigmaZ2p30R +0.3*c->GetSigmaZ2()/fCurrentSigmaZ2;
540 }
e0e13b88 541
81e97e0d 542
70e20dcf 543 SetClusterIndex(n,idx); // restore the current cluster index
6c94f330 544 return kTRUE;
81e97e0d 545}
546
547
548
549//_____________________________________________________________________________
105b1b81 550Float_t AliTPCseed::CookdEdx(Double_t low, Double_t up,Int_t i1, Int_t i2, Bool_t onlyused) {
81e97e0d 551 //-----------------------------------------------------------------
552 // This funtion calculates dE/dX within the "low" and "up" cuts.
553 //-----------------------------------------------------------------
554
555 Float_t amp[200];
556 Float_t angular[200];
557 Float_t weight[200];
558 Int_t index[200];
559 //Int_t nc = 0;
81e97e0d 560 Float_t meanlog = 100.;
561
562 Float_t mean[4] = {0,0,0,0};
563 Float_t sigma[4] = {1000,1000,1000,1000};
564 Int_t nc[4] = {0,0,0,0};
565 Float_t norm[4] = {1000,1000,1000,1000};
566 //
567 //
568 fNShared =0;
569
570 for (Int_t of =0; of<4; of++){
571 for (Int_t i=of+i1;i<i2;i+=4)
572 {
573 Int_t index = fIndex[i];
574 if (index<0||index&0x8000) continue;
575
576 //AliTPCTrackPoint * point = (AliTPCTrackPoint *) arr.At(i);
577 AliTPCTrackerPoint * point = GetTrackPoint(i);
578 //AliTPCTrackerPoint * pointm = GetTrackPoint(i-1);
579 //AliTPCTrackerPoint * pointp = 0;
580 //if (i<159) pointp = GetTrackPoint(i+1);
581
582 if (point==0) continue;
583 AliTPCclusterMI * cl = fClusterPointer[i];
584 if (cl==0) continue;
585 if (onlyused && (!cl->IsUsed(10))) continue;
586 if (cl->IsUsed(11)) {
587 fNShared++;
588 continue;
589 }
590 Int_t type = cl->GetType();
591 //if (point->fIsShared){
592 // fNShared++;
593 // continue;
594 //}
595 //if (pointm)
596 // if (pointm->fIsShared) continue;
597 //if (pointp)
598 // if (pointp->fIsShared) continue;
599
600 if (type<0) continue;
601 //if (type>10) continue;
602 //if (point->GetErrY()==0) continue;
603 //if (point->GetErrZ()==0) continue;
604
605 //Float_t ddy = (point->GetY()-cl->GetY())/point->GetErrY();
606 //Float_t ddz = (point->GetZ()-cl->GetZ())/point->GetErrZ();
607 //if ((ddy*ddy+ddz*ddz)>10) continue;
608
609
610 // if (point->GetCPoint().GetMax()<5) continue;
611 if (cl->GetMax()<5) continue;
612 Float_t angley = point->GetAngleY();
613 Float_t anglez = point->GetAngleZ();
614
615 Float_t rsigmay2 = point->GetSigmaY();
616 Float_t rsigmaz2 = point->GetSigmaZ();
617 /*
618 Float_t ns = 1.;
619 if (pointm){
620 rsigmay += pointm->GetTPoint().GetSigmaY();
621 rsigmaz += pointm->GetTPoint().GetSigmaZ();
622 ns+=1.;
623 }
624 if (pointp){
625 rsigmay += pointp->GetTPoint().GetSigmaY();
626 rsigmaz += pointp->GetTPoint().GetSigmaZ();
627 ns+=1.;
628 }
629 rsigmay/=ns;
630 rsigmaz/=ns;
631 */
632
633 Float_t rsigma = TMath::Sqrt(rsigmay2*rsigmaz2);
634
635 Float_t ampc = 0; // normalization to the number of electrons
636 if (i>64){
637 // ampc = 1.*point->GetCPoint().GetMax();
638 ampc = 1.*cl->GetMax();
639 //ampc = 1.*point->GetCPoint().GetQ();
640 // AliTPCClusterPoint & p = point->GetCPoint();
641 // Float_t dy = TMath::Abs(Int_t( TMath::Abs(p.GetY()/0.6)) - TMath::Abs(p.GetY()/0.6)+0.5);
642 // Float_t iz = (250.0-TMath::Abs(p.GetZ())+0.11)/0.566;
643 //Float_t dz =
644 // TMath::Abs( Int_t(iz) - iz + 0.5);
645 //ampc *= 1.15*(1-0.3*dy);
646 //ampc *= 1.15*(1-0.3*dz);
647 // Float_t zfactor = (AliTPCReconstructor::GetCtgRange()-0.0004*TMath::Abs(point->GetCPoint().GetZ()));
648 //ampc *=zfactor;
649 }
650 else{
651 //ampc = 1.0*point->GetCPoint().GetMax();
652 ampc = 1.0*cl->GetMax();
653 //ampc = 1.0*point->GetCPoint().GetQ();
654 //AliTPCClusterPoint & p = point->GetCPoint();
655 // Float_t dy = TMath::Abs(Int_t( TMath::Abs(p.GetY()/0.4)) - TMath::Abs(p.GetY()/0.4)+0.5);
656 //Float_t iz = (250.0-TMath::Abs(p.GetZ())+0.11)/0.566;
657 //Float_t dz =
658 // TMath::Abs( Int_t(iz) - iz + 0.5);
659
660 //ampc *= 1.15*(1-0.3*dy);
661 //ampc *= 1.15*(1-0.3*dz);
662 // Float_t zfactor = (1.02-0.000*TMath::Abs(point->GetCPoint().GetZ()));
663 //ampc *=zfactor;
664
665 }
666 ampc *= 2.0; // put mean value to channel 50
667 //ampc *= 0.58; // put mean value to channel 50
668 Float_t w = 1.;
669 // if (type>0) w = 1./(type/2.-0.5);
670 // Float_t z = TMath::Abs(cl->GetZ());
671 if (i<64) {
672 ampc /= 0.6;
673 //ampc /= (1+0.0008*z);
674 } else
675 if (i>128){
676 ampc /=1.5;
677 //ampc /= (1+0.0008*z);
678 }else{
679 //ampc /= (1+0.0008*z);
680 }
681
682 if (type<0) { //amp at the border - lower weight
683 // w*= 2.;
684
685 continue;
686 }
687 if (rsigma>1.5) ampc/=1.3; // if big backround
688 amp[nc[of]] = ampc;
689 angular[nc[of]] = TMath::Sqrt(1.+angley*angley+anglez*anglez);
690 weight[nc[of]] = w;
691 nc[of]++;
692 }
693
694 TMath::Sort(nc[of],amp,index,kFALSE);
695 Float_t sumamp=0;
696 Float_t sumamp2=0;
697 Float_t sumw=0;
698 //meanlog = amp[index[Int_t(nc[of]*0.33)]];
699 meanlog = 50;
700 for (Int_t i=int(nc[of]*low+0.5);i<int(nc[of]*up+0.5);i++){
701 Float_t ampl = amp[index[i]]/angular[index[i]];
702 ampl = meanlog*TMath::Log(1.+ampl/meanlog);
703 //
704 sumw += weight[index[i]];
705 sumamp += weight[index[i]]*ampl;
706 sumamp2 += weight[index[i]]*ampl*ampl;
707 norm[of] += angular[index[i]]*weight[index[i]];
708 }
709 if (sumw<1){
710 SetdEdx(0);
711 }
712 else {
713 norm[of] /= sumw;
714 mean[of] = sumamp/sumw;
715 sigma[of] = sumamp2/sumw-mean[of]*mean[of];
716 if (sigma[of]>0.1)
717 sigma[of] = TMath::Sqrt(sigma[of]);
718 else
719 sigma[of] = 1000;
720
721 mean[of] = (TMath::Exp(mean[of]/meanlog)-1)*meanlog;
722 //mean *=(1-0.02*(sigma/(mean*0.17)-1.));
723 //mean *=(1-0.1*(norm-1.));
724 }
725 }
726
727 Float_t dedx =0;
728 fSdEdx =0;
729 fMAngular =0;
730 // mean[0]*= (1-0.05*(sigma[0]/(0.01+mean[1]*0.18)-1));
731 // mean[1]*= (1-0.05*(sigma[1]/(0.01+mean[0]*0.18)-1));
732
733
734 // dedx = (mean[0]* TMath::Sqrt((1.+nc[0]))+ mean[1]* TMath::Sqrt((1.+nc[1])) )/
735 // ( TMath::Sqrt((1.+nc[0]))+TMath::Sqrt((1.+nc[1])));
736
737 Int_t norm2 = 0;
738 Int_t norm3 = 0;
739 for (Int_t i =0;i<4;i++){
740 if (nc[i]>2&&nc[i]<1000){
741 dedx += mean[i] *nc[i];
742 fSdEdx += sigma[i]*(nc[i]-2);
743 fMAngular += norm[i] *nc[i];
744 norm2 += nc[i];
745 norm3 += nc[i]-2;
746 }
747 fDEDX[i] = mean[i];
748 fSDEDX[i] = sigma[i];
749 fNCDEDX[i]= nc[i];
750 }
751
752 if (norm3>0){
753 dedx /=norm2;
754 fSdEdx /=norm3;
755 fMAngular/=norm2;
756 }
757 else{
758 SetdEdx(0);
105b1b81 759 return 0;
81e97e0d 760 }
761 // Float_t dedx1 =dedx;
762 /*
763 dedx =0;
764 for (Int_t i =0;i<4;i++){
765 if (nc[i]>2&&nc[i]<1000){
766 mean[i] = mean[i]*(1-0.12*(sigma[i]/(fSdEdx)-1.));
767 dedx += mean[i] *nc[i];
768 }
769 fDEDX[i] = mean[i];
770 }
771 dedx /= norm2;
772 */
773
774
775 SetdEdx(dedx);
a2d457f2 776 return dedx;
81e97e0d 777}
778Double_t AliTPCseed::Bethe(Double_t bg){
779 //
780 // This is the Bethe-Bloch function normalised to 1 at the minimum
781 //
782 Double_t bg2=bg*bg;
783 Double_t bethe;
784 if (bg<3.5e1)
785 bethe=(1.+ bg2)/bg2*(log(5940*bg2) - bg2/(1.+ bg2));
786 else // Density effect ( approximately :)
787 bethe=1.15*(1.+ bg2)/bg2*(log(3.5*5940*bg) - bg2/(1.+ bg2));
788 return bethe/11.091;
789}
790
791void AliTPCseed::CookPID()
792{
793 //
794 // cook PID information according dEdx
795 //
796 Double_t fRange = 10.;
797 Double_t fRes = 0.1;
798 Double_t fMIP = 47.;
799 //
800 Int_t ns=AliPID::kSPECIES;
801 Double_t sumr =0;
802 for (Int_t j=0; j<ns; j++) {
803 Double_t mass=AliPID::ParticleMass(j);
6c94f330 804 Double_t mom=GetP();
81e97e0d 805 Double_t dedx=fdEdx/fMIP;
806 Double_t bethe=Bethe(mom/mass);
807 Double_t sigma=fRes*bethe;
808 if (sigma>0.001){
809 if (TMath::Abs(dedx-bethe) > fRange*sigma) {
810 fTPCr[j]=TMath::Exp(-0.5*fRange*fRange)/sigma;
811 sumr+=fTPCr[j];
812 continue;
813 }
814 fTPCr[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma;
815 sumr+=fTPCr[j];
816 }
817 else{
818 fTPCr[j]=1.;
819 sumr+=fTPCr[j];
820 }
821 }
822 for (Int_t j=0; j<ns; j++) {
823 fTPCr[j]/=sumr; //normalize
824 }
825}
826
827/*
828void AliTPCseed::CookdEdx2(Double_t low, Double_t up) {
829 //-----------------------------------------------------------------
830 // This funtion calculates dE/dX within the "low" and "up" cuts.
831 //-----------------------------------------------------------------
832
833 Float_t amp[200];
834 Float_t angular[200];
835 Float_t weight[200];
836 Int_t index[200];
837 Bool_t inlimit[200];
838 for (Int_t i=0;i<200;i++) inlimit[i]=kFALSE;
839 for (Int_t i=0;i<200;i++) amp[i]=10000;
840 for (Int_t i=0;i<200;i++) angular[i]= 1;;
841
842
843 //
844 Float_t meanlog = 100.;
845 Int_t indexde[4]={0,64,128,160};
846
847 Float_t amean =0;
848 Float_t asigma =0;
849 Float_t anc =0;
850 Float_t anorm =0;
851
852 Float_t mean[4] = {0,0,0,0};
853 Float_t sigma[4] = {1000,1000,1000,1000};
854 Int_t nc[4] = {0,0,0,0};
855 Float_t norm[4] = {1000,1000,1000,1000};
856 //
857 //
858 fNShared =0;
859
860 // for (Int_t of =0; of<3; of++){
861 // for (Int_t i=indexde[of];i<indexde[of+1];i++)
862 for (Int_t i =0; i<160;i++)
863 {
864 AliTPCTrackPoint * point = GetTrackPoint(i);
865 if (point==0) continue;
866 if (point->fIsShared){
867 fNShared++;
868 continue;
869 }
870 Int_t type = point->GetCPoint().GetType();
871 if (type<0) continue;
872 if (point->GetCPoint().GetMax()<5) continue;
873 Float_t angley = point->GetTPoint().GetAngleY();
874 Float_t anglez = point->GetTPoint().GetAngleZ();
875 Float_t rsigmay = point->GetCPoint().GetSigmaY();
876 Float_t rsigmaz = point->GetCPoint().GetSigmaZ();
877 Float_t rsigma = TMath::Sqrt(rsigmay*rsigmaz);
878
879 Float_t ampc = 0; // normalization to the number of electrons
880 if (i>64){
881 ampc = point->GetCPoint().GetMax();
882 }
883 else{
884 ampc = point->GetCPoint().GetMax();
885 }
886 ampc *= 2.0; // put mean value to channel 50
887 // ampc *= 0.565; // put mean value to channel 50
888
889 Float_t w = 1.;
890 Float_t z = TMath::Abs(point->GetCPoint().GetZ());
891 if (i<64) {
892 ampc /= 0.63;
893 } else
894 if (i>128){
895 ampc /=1.51;
896 }
897 if (type<0) { //amp at the border - lower weight
898 continue;
899 }
900 if (rsigma>1.5) ampc/=1.3; // if big backround
901 angular[i] = TMath::Sqrt(1.+angley*angley+anglez*anglez);
902 amp[i] = ampc/angular[i];
903 weight[i] = w;
904 anc++;
905 }
906
907 TMath::Sort(159,amp,index,kFALSE);
908 for (Int_t i=int(anc*low+0.5);i<int(anc*up+0.5);i++){
909 inlimit[index[i]] = kTRUE; // take all clusters
910 }
911
912 // meanlog = amp[index[Int_t(anc*0.3)]];
913 meanlog =10000.;
914 for (Int_t of =0; of<3; of++){
915 Float_t sumamp=0;
916 Float_t sumamp2=0;
917 Float_t sumw=0;
918 for (Int_t i=indexde[of];i<indexde[of+1];i++)
919 {
920 if (inlimit[i]==kFALSE) continue;
921 Float_t ampl = amp[i];
922 ///angular[i];
923 ampl = meanlog*TMath::Log(1.+ampl/meanlog);
924 //
925 sumw += weight[i];
926 sumamp += weight[i]*ampl;
927 sumamp2 += weight[i]*ampl*ampl;
928 norm[of] += angular[i]*weight[i];
929 nc[of]++;
930 }
931 if (sumw<1){
932 SetdEdx(0);
933 }
934 else {
935 norm[of] /= sumw;
936 mean[of] = sumamp/sumw;
937 sigma[of] = sumamp2/sumw-mean[of]*mean[of];
938 if (sigma[of]>0.1)
939 sigma[of] = TMath::Sqrt(sigma[of]);
940 else
941 sigma[of] = 1000;
942 mean[of] = (TMath::Exp(mean[of]/meanlog)-1)*meanlog;
943 }
944 }
945
946 Float_t dedx =0;
947 fSdEdx =0;
948 fMAngular =0;
949 //
950 Int_t norm2 = 0;
951 Int_t norm3 = 0;
952 Float_t www[3] = {12.,14.,17.};
953 //Float_t www[3] = {1.,1.,1.};
954
955 for (Int_t i =0;i<3;i++){
956 if (nc[i]>2&&nc[i]<1000){
957 dedx += mean[i] *nc[i]*www[i]/sigma[i];
958 fSdEdx += sigma[i]*(nc[i]-2)*www[i]/sigma[i];
959 fMAngular += norm[i] *nc[i];
960 norm2 += nc[i]*www[i]/sigma[i];
961 norm3 += (nc[i]-2)*www[i]/sigma[i];
962 }
963 fDEDX[i] = mean[i];
964 fSDEDX[i] = sigma[i];
965 fNCDEDX[i]= nc[i];
966 }
967
968 if (norm3>0){
969 dedx /=norm2;
970 fSdEdx /=norm3;
971 fMAngular/=norm2;
972 }
973 else{
974 SetdEdx(0);
975 return;
976 }
977 // Float_t dedx1 =dedx;
978
979 dedx =0;
980 Float_t norm4 = 0;
981 for (Int_t i =0;i<3;i++){
982 if (nc[i]>2&&nc[i]<1000&&sigma[i]>3){
983 //mean[i] = mean[i]*(1+0.08*(sigma[i]/(fSdEdx)-1.));
984 dedx += mean[i] *(nc[i])/(sigma[i]);
985 norm4 += (nc[i])/(sigma[i]);
986 }
987 fDEDX[i] = mean[i];
988 }
989 if (norm4>0) dedx /= norm4;
990
991
992
993 SetdEdx(dedx);
994
995 //mi deDX
996
997}
998*/
6c94f330 999Double_t AliTPCseed::GetYat(Double_t xk) const {
1000//-----------------------------------------------------------------
1001// This function calculates the Y-coordinate of a track at the plane x=xk.
1002//-----------------------------------------------------------------
1003 if (TMath::Abs(GetSnp())>AliTPCReconstructor::GetMaxSnpTrack()) return 0.; //patch 01 jan 06
1004 Double_t c1=GetSnp(), r1=TMath::Sqrt(1.- c1*c1);
1005 Double_t c2=c1+GetC()*(xk-GetX());
1006 if (TMath::Abs(c2)>AliTPCReconstructor::GetMaxSnpTrack()) return 0;
1007 Double_t r2=TMath::Sqrt(1.- c2*c2);
1008 return GetY() + (xk-GetX())*(c1+c2)/(r1+r2);
1009}
1010
19b00333 1011void AliTPCseed::SetClusterMapBit(int ibit, Bool_t state)
1012{
1013 fClusterMap[ibit] = state;
1014}
1015Bool_t AliTPCseed::GetClusterMapBit(int ibit)
1016{
1017 return fClusterMap[ibit];
1018}
1019void AliTPCseed::SetSharedMapBit(int ibit, Bool_t state)
1020{
1021 fSharedMap[ibit] = state;
1022}
1023Bool_t AliTPCseed::GetSharedMapBit(int ibit)
1024{
1025 return fSharedMap[ibit];
1026}
eb02f63a 1027
1028
0a65832b 1029
1030
1031
1032Float_t AliTPCseed::CookdEdxNorm(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2){
1033
1034 //
1035 // calculates dedx using the cluster
1036 // low - up specify trunc mean range - default form 0-0.7
8076baa0 1037 // type - 1 - max charge or 0- total charge in cluster
1038 // //2- max no corr 3- total+ correction
0a65832b 1039 // i1-i2 - the pad-row range used for calculation
1040 //
1041 // normalization parametrization taken from AliTPCClusterParam
1042 //
1043 AliTPCClusterParam * parcl = AliTPCClusterParam::Instance();
1044 if (!parcl) return 0;
1045 Float_t amp[160];
1046 Int_t indexes[160];
1047 Int_t ncl=0;
1048 //
1049 //
1050 const Float_t ktany = TMath::Tan(TMath::DegToRad()*10);
1051 const Float_t kedgey =4.;
1052 //
1053 for (Int_t irow=i1; irow<i2; irow++){
1054 AliTPCclusterMI* cluster = GetClusterPointer(irow);
1055 if (!cluster) continue;
1056 if (TMath::Abs(cluster->GetY())>cluster->GetX()*ktany-kedgey) continue; // edge cluster
8076baa0 1057 Float_t charge= (type%2)? cluster->GetMax():cluster->GetQ();
0a65832b 1058 //do normalization
1059 Float_t corr=1;
8076baa0 1060 Int_t ipad= 0;
1061 if (irow>62) ipad=1;
1062 if (irow>127) ipad=2;
0a65832b 1063 if (type<=1){
0a65832b 1064 //
1065 AliTPCTrackerPoint * point = GetTrackPoint(irow);
1066 Float_t ty = TMath::Abs(point->GetAngleY());
1067 Float_t tz = TMath::Abs(point->GetAngleZ());
1068
1069 Float_t dr = (250.-TMath::Abs(cluster->GetZ()))/250.;
1070 corr = parcl->Qnorm(ipad,type,dr,ty,tz);
1071 }
1072 amp[ncl]=charge/corr;
8076baa0 1073
1074 amp[ncl] *= 2.0; // put mean value to channel 50
1075 if (ipad==0) {
1076 amp[ncl] /= 0.65; // this we will take form OCDB
1077 } else
1078 if (ipad==2){
1079 amp[ncl] /=1.57;
1080 }else{
1081 }
0a65832b 1082 ncl++;
1083 }
8076baa0 1084
0a65832b 1085 if (type>3) return ncl;
1086 TMath::Sort(ncl,amp, indexes, kFALSE);
1087
8076baa0 1088 if (ncl<10) return 0;
0a65832b 1089
1090 Float_t suma=0;
1091 Float_t sumn=0;
1092 Int_t icl0=TMath::Nint(ncl*low);
1093 Int_t icl1=TMath::Nint(ncl*up);
1094 for (Int_t icl=icl0; icl<icl1;icl++){
1095 suma+=amp[indexes[icl]];
1096 sumn++;
1097 }
1098 return suma/sumn;
1099
1100}
1101
1102Double_t AliTPCseed::BetheMass(Double_t mass){
1103 //
1104 // return bethe-bloch
1105 //
1106 Float_t bg= P()/mass;
1107 const Double_t kp1=0.76176e-1;
1108 const Double_t kp2=10.632;
1109 const Double_t kp3=0.13279e-4;
1110 const Double_t kp4=1.8631;
1111 const Double_t kp5=1.9479;
1112
1113 Double_t dbg = (Double_t) bg;
1114
1115 Double_t beta = dbg/TMath::Sqrt(1.+dbg*dbg);
1116
1117 Double_t aa = TMath::Power(beta,kp4);
1118 Double_t bb = TMath::Power(1./dbg,kp5);
1119
1120 bb=TMath::Log(kp3+bb);
1121
1122 return ((Float_t)((kp2-aa-bb)*kp1/aa));
1123}
1124
1125
eb02f63a 1126Float_t AliTPCseed::CookShape(Int_t type){
1127 //
1128 //
1129 //
1130 //-----------------------------------------------------------------
1131 // This funtion calculates dE/dX within the "low" and "up" cuts.
1132 //-----------------------------------------------------------------
1133 Float_t means=0;
1134 Float_t meanc=0;
1135 for (Int_t i =0; i<160;i++) {
1136 AliTPCTrackerPoint * point = GetTrackPoint(i);
1137 if (point==0) continue;
1138
1139 AliTPCclusterMI * cl = fClusterPointer[i];
1140 if (cl==0) continue;
1141
1142 Float_t rsigmay = TMath::Sqrt(point->GetSigmaY());
1143 Float_t rsigmaz = TMath::Sqrt(point->GetSigmaZ());
1144 Float_t rsigma = (rsigmay+rsigmaz)*0.5;
1145 if (type==0) means+=rsigma;
1146 if (type==1) means+=rsigmay;
1147 if (type==2) means+=rsigmaz;
1148 meanc++;
1149 }
1150 Float_t mean = (meanc>0)? means/meanc:0;
1151 return mean;
1152}