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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" |
7cd8ac3f | 28 | #include "AliTPCCalPad.h" |
29 | #include "AliTPCCalROC.h" | |
37540068 | 30 | #include "AliTPCcalibDB.h" |
7cd8ac3f | 31 | |
32 | ||
81e97e0d | 33 | |
34 | ClassImp(AliTPCseed) | |
35 | ||
36 | ||
37 | ||
32fab534 | 38 | AliTPCseed::AliTPCseed(): |
39 | AliTPCtrack(), | |
40 | fEsd(0x0), | |
2928bdf0 | 41 | fClusterOwner(kFALSE), |
32fab534 | 42 | fRow(0), |
43 | fSector(-1), | |
44 | fRelativeSector(-1), | |
45 | fCurrentSigmaY2(1e10), | |
46 | fCurrentSigmaZ2(1e10), | |
e0e13b88 | 47 | fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30% |
48 | fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30% | |
c07cb486 | 49 | fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2% |
50 | fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2% | |
e0e13b88 | 51 | // |
32fab534 | 52 | fErrorY2(1e10), |
53 | fErrorZ2(1e10), | |
54 | fCurrentCluster(0x0), | |
55 | fCurrentClusterIndex1(-1), | |
56 | fInDead(kFALSE), | |
57 | fIsSeeding(kFALSE), | |
58 | fNoCluster(0), | |
59 | fSort(0), | |
60 | fBSigned(kFALSE), | |
61 | fSeedType(0), | |
62 | fSeed1(-1), | |
63 | fSeed2(-1), | |
64 | fMAngular(0), | |
19b00333 | 65 | fCircular(0), |
66 | fClusterMap(159), | |
67 | fSharedMap(159) | |
32fab534 | 68 | { |
81e97e0d | 69 | // |
5c09947e | 70 | for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3); |
81e97e0d | 71 | for (Int_t i=0;i<160;i++) fClusterPointer[i]=0; |
72 | for (Int_t i=0;i<3;i++) fKinkIndexes[i]=0; | |
32fab534 | 73 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=0.2; |
74 | for (Int_t i=0;i<4;i++) { | |
75 | fDEDX[i] = 0.; | |
76 | fSDEDX[i] = 1e10; | |
77 | fNCDEDX[i] = 0; | |
78 | } | |
79 | for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1; | |
bfb57b6c | 80 | // for (Int_t i=0;i<160;i++) fClusterMap[i]=kFALSE; |
81 | //for (Int_t i=0;i<160;i++) fSharedMap[i]=kFALSE; | |
82 | fClusterMap.ResetAllBits(kFALSE); | |
83 | fSharedMap.ResetAllBits(kFALSE); | |
84 | ||
81e97e0d | 85 | } |
32fab534 | 86 | |
2928bdf0 | 87 | AliTPCseed::AliTPCseed(const AliTPCseed &s, Bool_t clusterOwner): |
32fab534 | 88 | AliTPCtrack(s), |
89 | fEsd(0x0), | |
2928bdf0 | 90 | fClusterOwner(clusterOwner), |
32fab534 | 91 | fRow(0), |
92 | fSector(-1), | |
93 | fRelativeSector(-1), | |
c07cb486 | 94 | fCurrentSigmaY2(-1), |
95 | fCurrentSigmaZ2(-1), | |
e0e13b88 | 96 | fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30% |
97 | fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30% | |
c07cb486 | 98 | fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2% |
99 | fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2% | |
32fab534 | 100 | fErrorY2(1e10), |
101 | fErrorZ2(1e10), | |
102 | fCurrentCluster(0x0), | |
103 | fCurrentClusterIndex1(-1), | |
104 | fInDead(kFALSE), | |
105 | fIsSeeding(kFALSE), | |
106 | fNoCluster(0), | |
107 | fSort(0), | |
108 | fBSigned(kFALSE), | |
109 | fSeedType(0), | |
110 | fSeed1(-1), | |
111 | fSeed2(-1), | |
112 | fMAngular(0), | |
19b00333 | 113 | fCircular(0), |
114 | fClusterMap(s.fClusterMap), | |
115 | fSharedMap(s.fSharedMap) | |
32fab534 | 116 | { |
81e97e0d | 117 | //--------------------- |
118 | // dummy copy constructor | |
119 | //------------------------- | |
2928bdf0 | 120 | for (Int_t i=0;i<160;i++) { |
121 | fClusterPointer[i]=0; | |
122 | if (fClusterOwner){ | |
123 | if (s.fClusterPointer[i]) | |
124 | fClusterPointer[i] = new AliTPCclusterMI(*(s.fClusterPointer[i])); | |
125 | }else{ | |
126 | fClusterPointer[i] = s.fClusterPointer[i]; | |
127 | } | |
128 | fTrackPoints[i] = s.fTrackPoints[i]; | |
129 | } | |
81e97e0d | 130 | for (Int_t i=0;i<160;i++) fIndex[i] = s.fIndex[i]; |
5c09947e | 131 | for (Int_t i=0;i<AliPID::kSPECIES;i++) fTPCr[i]=s.fTPCr[i]; |
132 | for (Int_t i=0;i<4;i++) { | |
133 | fDEDX[i] = s.fDEDX[i]; | |
134 | fSDEDX[i] = s.fSDEDX[i]; | |
135 | fNCDEDX[i] = s.fNCDEDX[i]; | |
136 | } | |
137 | for (Int_t i=0;i<12;i++) fOverlapLabels[i] = s.fOverlapLabels[i]; | |
19b00333 | 138 | |
81e97e0d | 139 | } |
5c09947e | 140 | |
141 | ||
32fab534 | 142 | AliTPCseed::AliTPCseed(const AliTPCtrack &t): |
143 | AliTPCtrack(t), | |
144 | fEsd(0x0), | |
2928bdf0 | 145 | fClusterOwner(kFALSE), |
32fab534 | 146 | fRow(0), |
147 | fSector(-1), | |
148 | fRelativeSector(-1), | |
c07cb486 | 149 | fCurrentSigmaY2(-1), |
150 | fCurrentSigmaZ2(-1), | |
e0e13b88 | 151 | fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30% |
152 | fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30% | |
c07cb486 | 153 | fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2% |
154 | fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2% | |
32fab534 | 155 | fErrorY2(1e10), |
156 | fErrorZ2(1e10), | |
157 | fCurrentCluster(0x0), | |
158 | fCurrentClusterIndex1(-1), | |
159 | fInDead(kFALSE), | |
160 | fIsSeeding(kFALSE), | |
161 | fNoCluster(0), | |
162 | fSort(0), | |
163 | fBSigned(kFALSE), | |
164 | fSeedType(0), | |
165 | fSeed1(-1), | |
166 | fSeed2(-1), | |
167 | fMAngular(0), | |
19b00333 | 168 | fCircular(0), |
169 | fClusterMap(159), | |
170 | fSharedMap(159) | |
32fab534 | 171 | { |
81e97e0d | 172 | // |
32fab534 | 173 | // Constructor from AliTPCtrack |
174 | // | |
175 | fFirstPoint =0; | |
105b1b81 | 176 | for (Int_t i=0;i<5;i++) fTPCr[i]=0.2; |
81e97e0d | 177 | for (Int_t i=0;i<160;i++) { |
178 | fClusterPointer[i] = 0; | |
179 | Int_t index = t.GetClusterIndex(i); | |
180 | if (index>=-1){ | |
181 | SetClusterIndex2(i,index); | |
182 | } | |
183 | else{ | |
184 | SetClusterIndex2(i,-3); | |
185 | } | |
186 | } | |
32fab534 | 187 | for (Int_t i=0;i<4;i++) { |
188 | fDEDX[i] = 0.; | |
189 | fSDEDX[i] = 1e10; | |
190 | fNCDEDX[i] = 0; | |
191 | } | |
192 | for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1; | |
bfb57b6c | 193 | |
194 | //for (Int_t i=0;i<160;i++) fClusterMap[i]=kFALSE; | |
195 | //for (Int_t i=0;i<160;i++) fSharedMap[i]=kFALSE; | |
196 | fClusterMap.ResetAllBits(kFALSE); | |
197 | fSharedMap.ResetAllBits(kFALSE); | |
198 | ||
81e97e0d | 199 | } |
200 | ||
6c94f330 | 201 | AliTPCseed::AliTPCseed(Double_t xr, Double_t alpha, const Double_t xx[5], |
202 | const Double_t cc[15], Int_t index): | |
203 | AliTPCtrack(xr, alpha, xx, cc, index), | |
32fab534 | 204 | fEsd(0x0), |
2928bdf0 | 205 | fClusterOwner(kFALSE), |
32fab534 | 206 | fRow(0), |
207 | fSector(-1), | |
208 | fRelativeSector(-1), | |
c07cb486 | 209 | fCurrentSigmaY2(-1), |
210 | fCurrentSigmaZ2(-1), | |
e0e13b88 | 211 | fCMeanSigmaY2p30(-1.), //! current mean sigma Y2 - mean30% |
212 | fCMeanSigmaZ2p30(-1.), //! current mean sigma Z2 - mean30% | |
c07cb486 | 213 | fCMeanSigmaY2p30R(-1.), //! current mean sigma Y2 - mean2% |
214 | fCMeanSigmaZ2p30R(-1.), //! current mean sigma Z2 - mean2% | |
32fab534 | 215 | fErrorY2(1e10), |
216 | fErrorZ2(1e10), | |
217 | fCurrentCluster(0x0), | |
218 | fCurrentClusterIndex1(-1), | |
219 | fInDead(kFALSE), | |
220 | fIsSeeding(kFALSE), | |
221 | fNoCluster(0), | |
222 | fSort(0), | |
223 | fBSigned(kFALSE), | |
224 | fSeedType(0), | |
225 | fSeed1(-1), | |
226 | fSeed2(-1), | |
227 | fMAngular(0), | |
19b00333 | 228 | fCircular(0), |
229 | fClusterMap(159), | |
230 | fSharedMap(159) | |
32fab534 | 231 | { |
232 | // | |
233 | // Constructor | |
81e97e0d | 234 | // |
32fab534 | 235 | fFirstPoint =0; |
5c09947e | 236 | for (Int_t i=0;i<160;i++) SetClusterIndex2(i,-3); |
81e97e0d | 237 | for (Int_t i=0;i<160;i++) fClusterPointer[i]=0; |
81e97e0d | 238 | for (Int_t i=0;i<5;i++) fTPCr[i]=0.2; |
32fab534 | 239 | for (Int_t i=0;i<4;i++) { |
240 | fDEDX[i] = 0.; | |
241 | fSDEDX[i] = 1e10; | |
242 | fNCDEDX[i] = 0; | |
243 | } | |
244 | for (Int_t i=0;i<12;i++) fOverlapLabels[i] = -1; | |
81e97e0d | 245 | } |
246 | ||
247 | AliTPCseed::~AliTPCseed(){ | |
248 | // | |
249 | // destructor | |
81e97e0d | 250 | fNoCluster =0; |
2928bdf0 | 251 | if (fClusterOwner){ |
252 | for (Int_t icluster=0; icluster<160; icluster++){ | |
253 | delete fClusterPointer[icluster]; | |
254 | } | |
255 | } | |
bfb57b6c | 256 | |
81e97e0d | 257 | } |
179c6296 | 258 | //_________________________________________________ |
316c6cd9 | 259 | AliTPCseed & AliTPCseed::operator=(const AliTPCseed ¶m) |
179c6296 | 260 | { |
261 | // | |
316c6cd9 | 262 | // assignment operator |
179c6296 | 263 | // |
316c6cd9 | 264 | if(this!=¶m){ |
265 | AliTPCtrack::operator=(param); | |
266 | fEsd =param.fEsd; | |
267 | for(Int_t i = 0;i<160;++i)fClusterPointer[i] = param.fClusterPointer[i]; // this is not allocated by AliTPCSeed | |
268 | fClusterOwner = param.fClusterOwner; | |
269 | // leave out fPoint, they are also not copied in the copy ctor... | |
270 | // but deleted in the dtor... strange... | |
316c6cd9 | 271 | fRow = param.fRow; |
272 | fSector = param.fSector; | |
273 | fRelativeSector = param.fRelativeSector; | |
274 | fCurrentSigmaY2 = param.fCurrentSigmaY2; | |
275 | fCurrentSigmaZ2 = param.fCurrentSigmaZ2; | |
276 | fErrorY2 = param.fErrorY2; | |
277 | fErrorZ2 = param.fErrorZ2; | |
278 | fCurrentCluster = param.fCurrentCluster; // this is not allocated by AliTPCSeed | |
279 | fCurrentClusterIndex1 = param.fCurrentClusterIndex1; | |
280 | fInDead = param.fInDead; | |
281 | fIsSeeding = param.fIsSeeding; | |
282 | fNoCluster = param.fNoCluster; | |
283 | fSort = param.fSort; | |
284 | fBSigned = param.fBSigned; | |
285 | for(Int_t i = 0;i<4;++i){ | |
286 | fDEDX[i] = param.fDEDX[i]; | |
287 | fSDEDX[i] = param.fSDEDX[i]; | |
288 | fNCDEDX[i] = param.fNCDEDX[i]; | |
289 | } | |
290 | for(Int_t i = 0;i<AliPID::kSPECIES;++i)fTPCr[i] = param.fTPCr[i]; | |
291 | ||
292 | fSeedType = param.fSeedType; | |
293 | fSeed1 = param.fSeed1; | |
294 | fSeed2 = param.fSeed2; | |
295 | for(Int_t i = 0;i<12;++i)fOverlapLabels[i] = param.fOverlapLabels[i]; | |
296 | fMAngular = param.fMAngular; | |
297 | fCircular = param.fCircular; | |
298 | for(int i = 0;i<160;++i)fTrackPoints[i] = param.fTrackPoints[i]; | |
299 | fClusterMap = param.fClusterMap; | |
300 | fSharedMap = param.fSharedMap; | |
301 | } | |
179c6296 | 302 | return (*this); |
303 | } | |
304 | //____________________________________________________ | |
81e97e0d | 305 | AliTPCTrackerPoint * AliTPCseed::GetTrackPoint(Int_t i) |
306 | { | |
307 | // | |
308 | // | |
309 | return &fTrackPoints[i]; | |
310 | } | |
311 | ||
81e97e0d | 312 | |
313 | ||
314 | Double_t AliTPCseed::GetDensityFirst(Int_t n) | |
315 | { | |
316 | // | |
317 | // | |
318 | // return cluster for n rows bellow first point | |
319 | Int_t nfoundable = 1; | |
320 | Int_t nfound = 1; | |
321 | for (Int_t i=fLastPoint-1;i>0&&nfoundable<n; i--){ | |
322 | Int_t index = GetClusterIndex2(i); | |
323 | if (index!=-1) nfoundable++; | |
324 | if (index>0) nfound++; | |
325 | } | |
326 | if (nfoundable<n) return 0; | |
327 | return Double_t(nfound)/Double_t(nfoundable); | |
328 | ||
329 | } | |
330 | ||
331 | ||
332 | void AliTPCseed::GetClusterStatistic(Int_t first, Int_t last, Int_t &found, Int_t &foundable, Int_t &shared, Bool_t plus2) | |
333 | { | |
334 | // get cluster stat. on given region | |
335 | // | |
336 | found = 0; | |
337 | foundable = 0; | |
338 | shared =0; | |
339 | for (Int_t i=first;i<last; i++){ | |
340 | Int_t index = GetClusterIndex2(i); | |
341 | if (index!=-1) foundable++; | |
6d493ea0 | 342 | if (index&0x8000) continue; |
81e97e0d | 343 | if (fClusterPointer[i]) { |
344 | found++; | |
345 | } | |
346 | else | |
347 | continue; | |
348 | ||
349 | if (fClusterPointer[i]->IsUsed(10)) { | |
350 | shared++; | |
351 | continue; | |
352 | } | |
353 | if (!plus2) continue; //take also neighborhoud | |
354 | // | |
355 | if ( (i>0) && fClusterPointer[i-1]){ | |
356 | if (fClusterPointer[i-1]->IsUsed(10)) { | |
357 | shared++; | |
358 | continue; | |
359 | } | |
360 | } | |
361 | if ( fClusterPointer[i+1]){ | |
362 | if (fClusterPointer[i+1]->IsUsed(10)) { | |
363 | shared++; | |
364 | continue; | |
365 | } | |
366 | } | |
367 | ||
368 | } | |
369 | //if (shared>found){ | |
370 | //Error("AliTPCseed::GetClusterStatistic","problem\n"); | |
371 | //} | |
372 | } | |
373 | ||
374 | ||
375 | ||
376 | ||
377 | ||
378 | void AliTPCseed::Reset(Bool_t all) | |
379 | { | |
380 | // | |
381 | // | |
382 | SetNumberOfClusters(0); | |
383 | fNFoundable = 0; | |
384 | SetChi2(0); | |
6c94f330 | 385 | ResetCovariance(10.); |
81e97e0d | 386 | /* |
387 | if (fTrackPoints){ | |
388 | for (Int_t i=0;i<8;i++){ | |
389 | delete [] fTrackPoints[i]; | |
390 | } | |
391 | delete fTrackPoints; | |
392 | fTrackPoints =0; | |
393 | } | |
394 | */ | |
395 | ||
396 | if (all){ | |
397 | for (Int_t i=0;i<200;i++) SetClusterIndex2(i,-3); | |
398 | for (Int_t i=0;i<160;i++) fClusterPointer[i]=0; | |
399 | } | |
400 | ||
401 | } | |
402 | ||
403 | ||
404 | void AliTPCseed::Modify(Double_t factor) | |
405 | { | |
406 | ||
407 | //------------------------------------------------------------------ | |
408 | //This function makes a track forget its history :) | |
409 | //------------------------------------------------------------------ | |
410 | if (factor<=0) { | |
6c94f330 | 411 | ResetCovariance(10.); |
81e97e0d | 412 | return; |
413 | } | |
6c94f330 | 414 | ResetCovariance(factor); |
415 | ||
81e97e0d | 416 | SetNumberOfClusters(0); |
417 | fNFoundable =0; | |
418 | SetChi2(0); | |
419 | fRemoval = 0; | |
420 | fCurrentSigmaY2 = 0.000005; | |
421 | fCurrentSigmaZ2 = 0.000005; | |
422 | fNoCluster = 0; | |
423 | //fFirstPoint = 160; | |
424 | //fLastPoint = 0; | |
425 | } | |
426 | ||
427 | ||
428 | ||
429 | ||
430 | Int_t AliTPCseed::GetProlongation(Double_t xk, Double_t &y, Double_t & z) const | |
431 | { | |
432 | //----------------------------------------------------------------- | |
433 | // This function find proloncation of a track to a reference plane x=xk. | |
434 | // doesn't change internal state of the track | |
435 | //----------------------------------------------------------------- | |
436 | ||
6c94f330 | 437 | Double_t x1=GetX(), x2=x1+(xk-x1), dx=x2-x1; |
81e97e0d | 438 | |
6c94f330 | 439 | if (TMath::Abs(GetSnp()+GetC()*dx) >= AliTPCReconstructor::GetMaxSnpTrack()) { |
81e97e0d | 440 | return 0; |
441 | } | |
442 | ||
443 | // Double_t y1=fP0, z1=fP1; | |
6c94f330 | 444 | Double_t c1=GetSnp(), r1=sqrt(1.- c1*c1); |
445 | Double_t c2=c1 + GetC()*dx, r2=sqrt(1.- c2*c2); | |
81e97e0d | 446 | |
6c94f330 | 447 | y = GetY(); |
448 | z = GetZ(); | |
81e97e0d | 449 | //y += dx*(c1+c2)/(r1+r2); |
450 | //z += dx*(c1+c2)/(c1*r2 + c2*r1)*fP3; | |
451 | ||
452 | Double_t dy = dx*(c1+c2)/(r1+r2); | |
453 | Double_t dz = 0; | |
454 | // | |
6c94f330 | 455 | Double_t delta = GetC()*dx*(c1+c2)/(c1*r2 + c2*r1); |
81e97e0d | 456 | /* |
457 | if (TMath::Abs(delta)>0.0001){ | |
458 | dz = fP3*TMath::ASin(delta)/fP4; | |
459 | }else{ | |
460 | dz = dx*fP3*(c1+c2)/(c1*r2 + c2*r1); | |
461 | } | |
462 | */ | |
463 | // dz = fP3*AliTPCFastMath::FastAsin(delta)/fP4; | |
6c94f330 | 464 | dz = GetTgl()*TMath::ASin(delta)/GetC(); |
81e97e0d | 465 | // |
466 | y+=dy; | |
467 | z+=dz; | |
468 | ||
469 | ||
470 | return 1; | |
471 | } | |
472 | ||
473 | ||
474 | //_____________________________________________________________________________ | |
af32720d | 475 | Double_t AliTPCseed::GetPredictedChi2(const AliCluster *c) const |
81e97e0d | 476 | { |
477 | //----------------------------------------------------------------- | |
478 | // This function calculates a predicted chi2 increment. | |
479 | //----------------------------------------------------------------- | |
6c94f330 | 480 | Double_t p[2]={c->GetY(), c->GetZ()}; |
481 | Double_t cov[3]={fErrorY2, 0., fErrorZ2}; | |
482 | return AliExternalTrackParam::GetPredictedChi2(p,cov); | |
81e97e0d | 483 | } |
484 | ||
81e97e0d | 485 | //_________________________________________________________________________________________ |
486 | ||
487 | ||
488 | Int_t AliTPCseed::Compare(const TObject *o) const { | |
489 | //----------------------------------------------------------------- | |
490 | // This function compares tracks according to the sector - for given sector according z | |
491 | //----------------------------------------------------------------- | |
492 | AliTPCseed *t=(AliTPCseed*)o; | |
6c94f330 | 493 | |
81e97e0d | 494 | if (fSort == 0){ |
495 | if (t->fRelativeSector>fRelativeSector) return -1; | |
496 | if (t->fRelativeSector<fRelativeSector) return 1; | |
497 | Double_t z2 = t->GetZ(); | |
498 | Double_t z1 = GetZ(); | |
499 | if (z2>z1) return 1; | |
500 | if (z2<z1) return -1; | |
501 | return 0; | |
502 | } | |
503 | else { | |
504 | Float_t f2 =1; | |
6c23ffed | 505 | f2 = 1-20*TMath::Sqrt(t->GetSigma1Pt2())/(t->OneOverPt()+0.0066); |
81e97e0d | 506 | if (t->fBConstrain) f2=1.2; |
507 | ||
508 | Float_t f1 =1; | |
6c23ffed | 509 | f1 = 1-20*TMath::Sqrt(GetSigma1Pt2())/(OneOverPt()+0.0066); |
81e97e0d | 510 | |
511 | if (fBConstrain) f1=1.2; | |
512 | ||
513 | if (t->GetNumberOfClusters()*f2 <GetNumberOfClusters()*f1) return -1; | |
514 | else return +1; | |
515 | } | |
516 | } | |
517 | ||
518 | ||
519 | ||
520 | ||
521 | //_____________________________________________________________________________ | |
70e20dcf | 522 | Bool_t AliTPCseed::Update(const AliCluster *c, Double_t chisq, Int_t index) |
6c94f330 | 523 | { |
81e97e0d | 524 | //----------------------------------------------------------------- |
525 | // This function associates a cluster with this track. | |
526 | //----------------------------------------------------------------- | |
81e97e0d | 527 | Int_t n=GetNumberOfClusters(); |
70e20dcf | 528 | Int_t idx=GetClusterIndex(n); // save the current cluster index |
529 | ||
530 | AliCluster cl(*c); cl.SetSigmaY2(fErrorY2); cl.SetSigmaZ2(fErrorZ2); | |
531 | if (!AliTPCtrack::Update(&cl,chisq,index)) return kFALSE; | |
e0e13b88 | 532 | |
533 | if (fCMeanSigmaY2p30<0){ | |
534 | fCMeanSigmaY2p30= c->GetSigmaY2(); //! current mean sigma Y2 - mean30% | |
c07cb486 | 535 | fCMeanSigmaZ2p30= c->GetSigmaZ2(); //! current mean sigma Z2 - mean30% |
536 | fCMeanSigmaY2p30R = 1; //! current mean sigma Y2 - mean5% | |
537 | fCMeanSigmaZ2p30R = 1; //! current mean sigma Z2 - mean5% | |
e0e13b88 | 538 | } |
539 | // | |
540 | fCMeanSigmaY2p30= 0.70*fCMeanSigmaY2p30 +0.30*c->GetSigmaY2(); | |
c07cb486 | 541 | fCMeanSigmaZ2p30= 0.70*fCMeanSigmaZ2p30 +0.30*c->GetSigmaZ2(); |
542 | if (fCurrentSigmaY2>0){ | |
543 | fCMeanSigmaY2p30R = 0.7*fCMeanSigmaY2p30R +0.3*c->GetSigmaY2()/fCurrentSigmaY2; | |
544 | fCMeanSigmaZ2p30R = 0.7*fCMeanSigmaZ2p30R +0.3*c->GetSigmaZ2()/fCurrentSigmaZ2; | |
545 | } | |
e0e13b88 | 546 | |
81e97e0d | 547 | |
70e20dcf | 548 | SetClusterIndex(n,idx); // restore the current cluster index |
6c94f330 | 549 | return kTRUE; |
81e97e0d | 550 | } |
551 | ||
552 | ||
553 | ||
554 | //_____________________________________________________________________________ | |
105b1b81 | 555 | Float_t AliTPCseed::CookdEdx(Double_t low, Double_t up,Int_t i1, Int_t i2, Bool_t onlyused) { |
81e97e0d | 556 | //----------------------------------------------------------------- |
557 | // This funtion calculates dE/dX within the "low" and "up" cuts. | |
558 | //----------------------------------------------------------------- | |
559 | ||
560 | Float_t amp[200]; | |
561 | Float_t angular[200]; | |
562 | Float_t weight[200]; | |
563 | Int_t index[200]; | |
564 | //Int_t nc = 0; | |
81e97e0d | 565 | Float_t meanlog = 100.; |
566 | ||
567 | Float_t mean[4] = {0,0,0,0}; | |
568 | Float_t sigma[4] = {1000,1000,1000,1000}; | |
569 | Int_t nc[4] = {0,0,0,0}; | |
570 | Float_t norm[4] = {1000,1000,1000,1000}; | |
571 | // | |
572 | // | |
573 | fNShared =0; | |
574 | ||
575 | for (Int_t of =0; of<4; of++){ | |
576 | for (Int_t i=of+i1;i<i2;i+=4) | |
577 | { | |
578 | Int_t index = fIndex[i]; | |
579 | if (index<0||index&0x8000) continue; | |
580 | ||
581 | //AliTPCTrackPoint * point = (AliTPCTrackPoint *) arr.At(i); | |
582 | AliTPCTrackerPoint * point = GetTrackPoint(i); | |
583 | //AliTPCTrackerPoint * pointm = GetTrackPoint(i-1); | |
584 | //AliTPCTrackerPoint * pointp = 0; | |
585 | //if (i<159) pointp = GetTrackPoint(i+1); | |
586 | ||
587 | if (point==0) continue; | |
588 | AliTPCclusterMI * cl = fClusterPointer[i]; | |
589 | if (cl==0) continue; | |
590 | if (onlyused && (!cl->IsUsed(10))) continue; | |
591 | if (cl->IsUsed(11)) { | |
592 | fNShared++; | |
593 | continue; | |
594 | } | |
595 | Int_t type = cl->GetType(); | |
596 | //if (point->fIsShared){ | |
597 | // fNShared++; | |
598 | // continue; | |
599 | //} | |
600 | //if (pointm) | |
601 | // if (pointm->fIsShared) continue; | |
602 | //if (pointp) | |
603 | // if (pointp->fIsShared) continue; | |
604 | ||
605 | if (type<0) continue; | |
606 | //if (type>10) continue; | |
607 | //if (point->GetErrY()==0) continue; | |
608 | //if (point->GetErrZ()==0) continue; | |
609 | ||
610 | //Float_t ddy = (point->GetY()-cl->GetY())/point->GetErrY(); | |
611 | //Float_t ddz = (point->GetZ()-cl->GetZ())/point->GetErrZ(); | |
612 | //if ((ddy*ddy+ddz*ddz)>10) continue; | |
613 | ||
614 | ||
615 | // if (point->GetCPoint().GetMax()<5) continue; | |
616 | if (cl->GetMax()<5) continue; | |
617 | Float_t angley = point->GetAngleY(); | |
618 | Float_t anglez = point->GetAngleZ(); | |
619 | ||
620 | Float_t rsigmay2 = point->GetSigmaY(); | |
621 | Float_t rsigmaz2 = point->GetSigmaZ(); | |
622 | /* | |
623 | Float_t ns = 1.; | |
624 | if (pointm){ | |
625 | rsigmay += pointm->GetTPoint().GetSigmaY(); | |
626 | rsigmaz += pointm->GetTPoint().GetSigmaZ(); | |
627 | ns+=1.; | |
628 | } | |
629 | if (pointp){ | |
630 | rsigmay += pointp->GetTPoint().GetSigmaY(); | |
631 | rsigmaz += pointp->GetTPoint().GetSigmaZ(); | |
632 | ns+=1.; | |
633 | } | |
634 | rsigmay/=ns; | |
635 | rsigmaz/=ns; | |
636 | */ | |
637 | ||
638 | Float_t rsigma = TMath::Sqrt(rsigmay2*rsigmaz2); | |
639 | ||
640 | Float_t ampc = 0; // normalization to the number of electrons | |
641 | if (i>64){ | |
642 | // ampc = 1.*point->GetCPoint().GetMax(); | |
643 | ampc = 1.*cl->GetMax(); | |
644 | //ampc = 1.*point->GetCPoint().GetQ(); | |
645 | // AliTPCClusterPoint & p = point->GetCPoint(); | |
646 | // Float_t dy = TMath::Abs(Int_t( TMath::Abs(p.GetY()/0.6)) - TMath::Abs(p.GetY()/0.6)+0.5); | |
647 | // Float_t iz = (250.0-TMath::Abs(p.GetZ())+0.11)/0.566; | |
648 | //Float_t dz = | |
649 | // TMath::Abs( Int_t(iz) - iz + 0.5); | |
650 | //ampc *= 1.15*(1-0.3*dy); | |
651 | //ampc *= 1.15*(1-0.3*dz); | |
652 | // Float_t zfactor = (AliTPCReconstructor::GetCtgRange()-0.0004*TMath::Abs(point->GetCPoint().GetZ())); | |
653 | //ampc *=zfactor; | |
654 | } | |
655 | else{ | |
656 | //ampc = 1.0*point->GetCPoint().GetMax(); | |
657 | ampc = 1.0*cl->GetMax(); | |
658 | //ampc = 1.0*point->GetCPoint().GetQ(); | |
659 | //AliTPCClusterPoint & p = point->GetCPoint(); | |
660 | // Float_t dy = TMath::Abs(Int_t( TMath::Abs(p.GetY()/0.4)) - TMath::Abs(p.GetY()/0.4)+0.5); | |
661 | //Float_t iz = (250.0-TMath::Abs(p.GetZ())+0.11)/0.566; | |
662 | //Float_t dz = | |
663 | // TMath::Abs( Int_t(iz) - iz + 0.5); | |
664 | ||
665 | //ampc *= 1.15*(1-0.3*dy); | |
666 | //ampc *= 1.15*(1-0.3*dz); | |
667 | // Float_t zfactor = (1.02-0.000*TMath::Abs(point->GetCPoint().GetZ())); | |
668 | //ampc *=zfactor; | |
669 | ||
670 | } | |
671 | ampc *= 2.0; // put mean value to channel 50 | |
672 | //ampc *= 0.58; // put mean value to channel 50 | |
673 | Float_t w = 1.; | |
674 | // if (type>0) w = 1./(type/2.-0.5); | |
675 | // Float_t z = TMath::Abs(cl->GetZ()); | |
676 | if (i<64) { | |
677 | ampc /= 0.6; | |
678 | //ampc /= (1+0.0008*z); | |
679 | } else | |
680 | if (i>128){ | |
681 | ampc /=1.5; | |
682 | //ampc /= (1+0.0008*z); | |
683 | }else{ | |
684 | //ampc /= (1+0.0008*z); | |
685 | } | |
686 | ||
687 | if (type<0) { //amp at the border - lower weight | |
688 | // w*= 2.; | |
689 | ||
690 | continue; | |
691 | } | |
692 | if (rsigma>1.5) ampc/=1.3; // if big backround | |
693 | amp[nc[of]] = ampc; | |
694 | angular[nc[of]] = TMath::Sqrt(1.+angley*angley+anglez*anglez); | |
695 | weight[nc[of]] = w; | |
696 | nc[of]++; | |
697 | } | |
698 | ||
699 | TMath::Sort(nc[of],amp,index,kFALSE); | |
700 | Float_t sumamp=0; | |
701 | Float_t sumamp2=0; | |
702 | Float_t sumw=0; | |
703 | //meanlog = amp[index[Int_t(nc[of]*0.33)]]; | |
704 | meanlog = 50; | |
705 | for (Int_t i=int(nc[of]*low+0.5);i<int(nc[of]*up+0.5);i++){ | |
706 | Float_t ampl = amp[index[i]]/angular[index[i]]; | |
707 | ampl = meanlog*TMath::Log(1.+ampl/meanlog); | |
708 | // | |
709 | sumw += weight[index[i]]; | |
710 | sumamp += weight[index[i]]*ampl; | |
711 | sumamp2 += weight[index[i]]*ampl*ampl; | |
712 | norm[of] += angular[index[i]]*weight[index[i]]; | |
713 | } | |
714 | if (sumw<1){ | |
715 | SetdEdx(0); | |
716 | } | |
717 | else { | |
718 | norm[of] /= sumw; | |
719 | mean[of] = sumamp/sumw; | |
720 | sigma[of] = sumamp2/sumw-mean[of]*mean[of]; | |
721 | if (sigma[of]>0.1) | |
722 | sigma[of] = TMath::Sqrt(sigma[of]); | |
723 | else | |
724 | sigma[of] = 1000; | |
725 | ||
726 | mean[of] = (TMath::Exp(mean[of]/meanlog)-1)*meanlog; | |
727 | //mean *=(1-0.02*(sigma/(mean*0.17)-1.)); | |
728 | //mean *=(1-0.1*(norm-1.)); | |
729 | } | |
730 | } | |
731 | ||
732 | Float_t dedx =0; | |
733 | fSdEdx =0; | |
734 | fMAngular =0; | |
735 | // mean[0]*= (1-0.05*(sigma[0]/(0.01+mean[1]*0.18)-1)); | |
736 | // mean[1]*= (1-0.05*(sigma[1]/(0.01+mean[0]*0.18)-1)); | |
737 | ||
738 | ||
739 | // dedx = (mean[0]* TMath::Sqrt((1.+nc[0]))+ mean[1]* TMath::Sqrt((1.+nc[1])) )/ | |
740 | // ( TMath::Sqrt((1.+nc[0]))+TMath::Sqrt((1.+nc[1]))); | |
741 | ||
742 | Int_t norm2 = 0; | |
743 | Int_t norm3 = 0; | |
744 | for (Int_t i =0;i<4;i++){ | |
745 | if (nc[i]>2&&nc[i]<1000){ | |
746 | dedx += mean[i] *nc[i]; | |
747 | fSdEdx += sigma[i]*(nc[i]-2); | |
748 | fMAngular += norm[i] *nc[i]; | |
749 | norm2 += nc[i]; | |
750 | norm3 += nc[i]-2; | |
751 | } | |
752 | fDEDX[i] = mean[i]; | |
753 | fSDEDX[i] = sigma[i]; | |
754 | fNCDEDX[i]= nc[i]; | |
755 | } | |
756 | ||
757 | if (norm3>0){ | |
758 | dedx /=norm2; | |
759 | fSdEdx /=norm3; | |
760 | fMAngular/=norm2; | |
761 | } | |
762 | else{ | |
763 | SetdEdx(0); | |
105b1b81 | 764 | return 0; |
81e97e0d | 765 | } |
766 | // Float_t dedx1 =dedx; | |
767 | /* | |
768 | dedx =0; | |
769 | for (Int_t i =0;i<4;i++){ | |
770 | if (nc[i]>2&&nc[i]<1000){ | |
771 | mean[i] = mean[i]*(1-0.12*(sigma[i]/(fSdEdx)-1.)); | |
772 | dedx += mean[i] *nc[i]; | |
773 | } | |
774 | fDEDX[i] = mean[i]; | |
775 | } | |
776 | dedx /= norm2; | |
777 | */ | |
778 | ||
779 | ||
780 | SetdEdx(dedx); | |
a2d457f2 | 781 | return dedx; |
81e97e0d | 782 | } |
783 | Double_t AliTPCseed::Bethe(Double_t bg){ | |
784 | // | |
785 | // This is the Bethe-Bloch function normalised to 1 at the minimum | |
786 | // | |
787 | Double_t bg2=bg*bg; | |
788 | Double_t bethe; | |
789 | if (bg<3.5e1) | |
790 | bethe=(1.+ bg2)/bg2*(log(5940*bg2) - bg2/(1.+ bg2)); | |
791 | else // Density effect ( approximately :) | |
792 | bethe=1.15*(1.+ bg2)/bg2*(log(3.5*5940*bg) - bg2/(1.+ bg2)); | |
793 | return bethe/11.091; | |
794 | } | |
795 | ||
796 | void AliTPCseed::CookPID() | |
797 | { | |
798 | // | |
799 | // cook PID information according dEdx | |
800 | // | |
801 | Double_t fRange = 10.; | |
802 | Double_t fRes = 0.1; | |
803 | Double_t fMIP = 47.; | |
804 | // | |
805 | Int_t ns=AliPID::kSPECIES; | |
806 | Double_t sumr =0; | |
807 | for (Int_t j=0; j<ns; j++) { | |
808 | Double_t mass=AliPID::ParticleMass(j); | |
6c94f330 | 809 | Double_t mom=GetP(); |
81e97e0d | 810 | Double_t dedx=fdEdx/fMIP; |
811 | Double_t bethe=Bethe(mom/mass); | |
812 | Double_t sigma=fRes*bethe; | |
813 | if (sigma>0.001){ | |
814 | if (TMath::Abs(dedx-bethe) > fRange*sigma) { | |
815 | fTPCr[j]=TMath::Exp(-0.5*fRange*fRange)/sigma; | |
816 | sumr+=fTPCr[j]; | |
817 | continue; | |
818 | } | |
819 | fTPCr[j]=TMath::Exp(-0.5*(dedx-bethe)*(dedx-bethe)/(sigma*sigma))/sigma; | |
820 | sumr+=fTPCr[j]; | |
821 | } | |
822 | else{ | |
823 | fTPCr[j]=1.; | |
824 | sumr+=fTPCr[j]; | |
825 | } | |
826 | } | |
827 | for (Int_t j=0; j<ns; j++) { | |
828 | fTPCr[j]/=sumr; //normalize | |
829 | } | |
830 | } | |
831 | ||
832 | /* | |
833 | void AliTPCseed::CookdEdx2(Double_t low, Double_t up) { | |
834 | //----------------------------------------------------------------- | |
835 | // This funtion calculates dE/dX within the "low" and "up" cuts. | |
836 | //----------------------------------------------------------------- | |
837 | ||
838 | Float_t amp[200]; | |
839 | Float_t angular[200]; | |
840 | Float_t weight[200]; | |
841 | Int_t index[200]; | |
842 | Bool_t inlimit[200]; | |
843 | for (Int_t i=0;i<200;i++) inlimit[i]=kFALSE; | |
844 | for (Int_t i=0;i<200;i++) amp[i]=10000; | |
845 | for (Int_t i=0;i<200;i++) angular[i]= 1;; | |
846 | ||
847 | ||
848 | // | |
849 | Float_t meanlog = 100.; | |
850 | Int_t indexde[4]={0,64,128,160}; | |
851 | ||
852 | Float_t amean =0; | |
853 | Float_t asigma =0; | |
854 | Float_t anc =0; | |
855 | Float_t anorm =0; | |
856 | ||
857 | Float_t mean[4] = {0,0,0,0}; | |
858 | Float_t sigma[4] = {1000,1000,1000,1000}; | |
859 | Int_t nc[4] = {0,0,0,0}; | |
860 | Float_t norm[4] = {1000,1000,1000,1000}; | |
861 | // | |
862 | // | |
863 | fNShared =0; | |
864 | ||
865 | // for (Int_t of =0; of<3; of++){ | |
866 | // for (Int_t i=indexde[of];i<indexde[of+1];i++) | |
867 | for (Int_t i =0; i<160;i++) | |
868 | { | |
869 | AliTPCTrackPoint * point = GetTrackPoint(i); | |
870 | if (point==0) continue; | |
871 | if (point->fIsShared){ | |
872 | fNShared++; | |
873 | continue; | |
874 | } | |
875 | Int_t type = point->GetCPoint().GetType(); | |
876 | if (type<0) continue; | |
877 | if (point->GetCPoint().GetMax()<5) continue; | |
878 | Float_t angley = point->GetTPoint().GetAngleY(); | |
879 | Float_t anglez = point->GetTPoint().GetAngleZ(); | |
880 | Float_t rsigmay = point->GetCPoint().GetSigmaY(); | |
881 | Float_t rsigmaz = point->GetCPoint().GetSigmaZ(); | |
882 | Float_t rsigma = TMath::Sqrt(rsigmay*rsigmaz); | |
883 | ||
884 | Float_t ampc = 0; // normalization to the number of electrons | |
885 | if (i>64){ | |
886 | ampc = point->GetCPoint().GetMax(); | |
887 | } | |
888 | else{ | |
889 | ampc = point->GetCPoint().GetMax(); | |
890 | } | |
891 | ampc *= 2.0; // put mean value to channel 50 | |
892 | // ampc *= 0.565; // put mean value to channel 50 | |
893 | ||
894 | Float_t w = 1.; | |
895 | Float_t z = TMath::Abs(point->GetCPoint().GetZ()); | |
896 | if (i<64) { | |
897 | ampc /= 0.63; | |
898 | } else | |
899 | if (i>128){ | |
900 | ampc /=1.51; | |
901 | } | |
902 | if (type<0) { //amp at the border - lower weight | |
903 | continue; | |
904 | } | |
905 | if (rsigma>1.5) ampc/=1.3; // if big backround | |
906 | angular[i] = TMath::Sqrt(1.+angley*angley+anglez*anglez); | |
907 | amp[i] = ampc/angular[i]; | |
908 | weight[i] = w; | |
909 | anc++; | |
910 | } | |
911 | ||
912 | TMath::Sort(159,amp,index,kFALSE); | |
913 | for (Int_t i=int(anc*low+0.5);i<int(anc*up+0.5);i++){ | |
914 | inlimit[index[i]] = kTRUE; // take all clusters | |
915 | } | |
916 | ||
917 | // meanlog = amp[index[Int_t(anc*0.3)]]; | |
918 | meanlog =10000.; | |
919 | for (Int_t of =0; of<3; of++){ | |
920 | Float_t sumamp=0; | |
921 | Float_t sumamp2=0; | |
922 | Float_t sumw=0; | |
923 | for (Int_t i=indexde[of];i<indexde[of+1];i++) | |
924 | { | |
925 | if (inlimit[i]==kFALSE) continue; | |
926 | Float_t ampl = amp[i]; | |
927 | ///angular[i]; | |
928 | ampl = meanlog*TMath::Log(1.+ampl/meanlog); | |
929 | // | |
930 | sumw += weight[i]; | |
931 | sumamp += weight[i]*ampl; | |
932 | sumamp2 += weight[i]*ampl*ampl; | |
933 | norm[of] += angular[i]*weight[i]; | |
934 | nc[of]++; | |
935 | } | |
936 | if (sumw<1){ | |
937 | SetdEdx(0); | |
938 | } | |
939 | else { | |
940 | norm[of] /= sumw; | |
941 | mean[of] = sumamp/sumw; | |
942 | sigma[of] = sumamp2/sumw-mean[of]*mean[of]; | |
943 | if (sigma[of]>0.1) | |
944 | sigma[of] = TMath::Sqrt(sigma[of]); | |
945 | else | |
946 | sigma[of] = 1000; | |
947 | mean[of] = (TMath::Exp(mean[of]/meanlog)-1)*meanlog; | |
948 | } | |
949 | } | |
950 | ||
951 | Float_t dedx =0; | |
952 | fSdEdx =0; | |
953 | fMAngular =0; | |
954 | // | |
955 | Int_t norm2 = 0; | |
956 | Int_t norm3 = 0; | |
957 | Float_t www[3] = {12.,14.,17.}; | |
958 | //Float_t www[3] = {1.,1.,1.}; | |
959 | ||
960 | for (Int_t i =0;i<3;i++){ | |
961 | if (nc[i]>2&&nc[i]<1000){ | |
962 | dedx += mean[i] *nc[i]*www[i]/sigma[i]; | |
963 | fSdEdx += sigma[i]*(nc[i]-2)*www[i]/sigma[i]; | |
964 | fMAngular += norm[i] *nc[i]; | |
965 | norm2 += nc[i]*www[i]/sigma[i]; | |
966 | norm3 += (nc[i]-2)*www[i]/sigma[i]; | |
967 | } | |
968 | fDEDX[i] = mean[i]; | |
969 | fSDEDX[i] = sigma[i]; | |
970 | fNCDEDX[i]= nc[i]; | |
971 | } | |
972 | ||
973 | if (norm3>0){ | |
974 | dedx /=norm2; | |
975 | fSdEdx /=norm3; | |
976 | fMAngular/=norm2; | |
977 | } | |
978 | else{ | |
979 | SetdEdx(0); | |
980 | return; | |
981 | } | |
982 | // Float_t dedx1 =dedx; | |
983 | ||
984 | dedx =0; | |
985 | Float_t norm4 = 0; | |
986 | for (Int_t i =0;i<3;i++){ | |
987 | if (nc[i]>2&&nc[i]<1000&&sigma[i]>3){ | |
988 | //mean[i] = mean[i]*(1+0.08*(sigma[i]/(fSdEdx)-1.)); | |
989 | dedx += mean[i] *(nc[i])/(sigma[i]); | |
990 | norm4 += (nc[i])/(sigma[i]); | |
991 | } | |
992 | fDEDX[i] = mean[i]; | |
993 | } | |
994 | if (norm4>0) dedx /= norm4; | |
995 | ||
996 | ||
997 | ||
998 | SetdEdx(dedx); | |
999 | ||
1000 | //mi deDX | |
1001 | ||
1002 | } | |
1003 | */ | |
6c94f330 | 1004 | Double_t AliTPCseed::GetYat(Double_t xk) const { |
1005 | //----------------------------------------------------------------- | |
1006 | // This function calculates the Y-coordinate of a track at the plane x=xk. | |
1007 | //----------------------------------------------------------------- | |
1008 | if (TMath::Abs(GetSnp())>AliTPCReconstructor::GetMaxSnpTrack()) return 0.; //patch 01 jan 06 | |
1009 | Double_t c1=GetSnp(), r1=TMath::Sqrt(1.- c1*c1); | |
1010 | Double_t c2=c1+GetC()*(xk-GetX()); | |
1011 | if (TMath::Abs(c2)>AliTPCReconstructor::GetMaxSnpTrack()) return 0; | |
1012 | Double_t r2=TMath::Sqrt(1.- c2*c2); | |
1013 | return GetY() + (xk-GetX())*(c1+c2)/(r1+r2); | |
1014 | } | |
1015 | ||
19b00333 | 1016 | void AliTPCseed::SetClusterMapBit(int ibit, Bool_t state) |
1017 | { | |
1018 | fClusterMap[ibit] = state; | |
1019 | } | |
1020 | Bool_t AliTPCseed::GetClusterMapBit(int ibit) | |
1021 | { | |
1022 | return fClusterMap[ibit]; | |
1023 | } | |
1024 | void AliTPCseed::SetSharedMapBit(int ibit, Bool_t state) | |
1025 | { | |
1026 | fSharedMap[ibit] = state; | |
1027 | } | |
1028 | Bool_t AliTPCseed::GetSharedMapBit(int ibit) | |
1029 | { | |
1030 | return fSharedMap[ibit]; | |
1031 | } | |
eb02f63a | 1032 | |
1033 | ||
0a65832b | 1034 | |
1035 | ||
1036 | ||
2fc9608f | 1037 | Float_t AliTPCseed::CookdEdxNorm(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, AliTPCCalPad * gainMap, Bool_t posNorm, Bool_t padNorm){ |
0a65832b | 1038 | |
1039 | // | |
1040 | // calculates dedx using the cluster | |
1041 | // low - up specify trunc mean range - default form 0-0.7 | |
8076baa0 | 1042 | // type - 1 - max charge or 0- total charge in cluster |
1043 | // //2- max no corr 3- total+ correction | |
0a65832b | 1044 | // i1-i2 - the pad-row range used for calculation |
1045 | // | |
1046 | // normalization parametrization taken from AliTPCClusterParam | |
1047 | // | |
1048 | AliTPCClusterParam * parcl = AliTPCClusterParam::Instance(); | |
8e1dcdda | 1049 | if (!parcl) parcl = AliTPCcalibDB::Instance()->GetClusterParam(); |
0a65832b | 1050 | if (!parcl) return 0; |
1051 | Float_t amp[160]; | |
1052 | Int_t indexes[160]; | |
1053 | Int_t ncl=0; | |
1054 | // | |
1055 | // | |
1056 | const Float_t ktany = TMath::Tan(TMath::DegToRad()*10); | |
1057 | const Float_t kedgey =4.; | |
1058 | // | |
7cd8ac3f | 1059 | // |
0a65832b | 1060 | for (Int_t irow=i1; irow<i2; irow++){ |
1061 | AliTPCclusterMI* cluster = GetClusterPointer(irow); | |
1062 | if (!cluster) continue; | |
1063 | if (TMath::Abs(cluster->GetY())>cluster->GetX()*ktany-kedgey) continue; // edge cluster | |
8076baa0 | 1064 | Float_t charge= (type%2)? cluster->GetMax():cluster->GetQ(); |
37540068 | 1065 | if (!gainMap) gainMap = AliTPCcalibDB::Instance()->GetDedxGainFactor(); |
d6920632 | 1066 | if (gainMap) { |
1067 | Float_t factor = 1; | |
1068 | AliTPCCalROC * roc = gainMap->GetCalROC(cluster->GetDetector()); | |
1069 | if (irow < 63) { // IROC | |
1070 | factor = roc->GetValue(irow, TMath::Nint(cluster->GetPad()))*1.55; | |
1071 | } else { // OROC | |
1072 | factor = roc->GetValue(irow - 63, TMath::Nint(cluster->GetPad())); | |
1073 | } | |
1074 | if (factor>0.5) charge/=factor; | |
7cd8ac3f | 1075 | } |
d6920632 | 1076 | |
0a65832b | 1077 | //do normalization |
1078 | Float_t corr=1; | |
8076baa0 | 1079 | Int_t ipad= 0; |
1080 | if (irow>62) ipad=1; | |
1081 | if (irow>127) ipad=2; | |
0a65832b | 1082 | if (type<=1){ |
0a65832b | 1083 | // |
1084 | AliTPCTrackerPoint * point = GetTrackPoint(irow); | |
1085 | Float_t ty = TMath::Abs(point->GetAngleY()); | |
1086 | Float_t tz = TMath::Abs(point->GetAngleZ()); | |
1087 | ||
1088 | Float_t dr = (250.-TMath::Abs(cluster->GetZ()))/250.; | |
1089 | corr = parcl->Qnorm(ipad,type,dr,ty,tz); | |
1090 | } | |
1091 | amp[ncl]=charge/corr; | |
8e1dcdda | 1092 | if (posNorm){ |
1093 | // | |
1094 | // | |
1095 | // | |
1096 | corr = parcl->QnormPos(ipad,type, cluster->GetPad(),cluster->GetTimeBin(), cluster->GetZ(), | |
1097 | cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax(),cluster->GetQ()); | |
1098 | amp[ncl]/=corr; | |
1099 | } | |
1100 | ||
1101 | ||
8076baa0 | 1102 | amp[ncl] *= 2.0; // put mean value to channel 50 |
2fc9608f | 1103 | if (padNorm){ |
1104 | corr=1; | |
1105 | if (type==0 && parcl->fQpadTnorm) corr = (*parcl->fQpadTnorm)[ipad]; | |
1106 | if (type==1 && parcl->fQpadTnorm) corr = (*parcl->fQpadMnorm)[ipad]; | |
1107 | amp[ncl]/=corr; | |
1108 | } | |
1109 | ||
1110 | // if (ipad==0) { | |
1111 | // amp[ncl] /= 0.65; // this we will take form OCDB | |
1112 | // } else | |
1113 | // if (ipad==2){ | |
1114 | // amp[ncl] /=1.57; | |
1115 | // }else{ | |
1116 | // } | |
0a65832b | 1117 | ncl++; |
1118 | } | |
8076baa0 | 1119 | |
0a65832b | 1120 | if (type>3) return ncl; |
1121 | TMath::Sort(ncl,amp, indexes, kFALSE); | |
1122 | ||
8076baa0 | 1123 | if (ncl<10) return 0; |
0a65832b | 1124 | |
1125 | Float_t suma=0; | |
1126 | Float_t sumn=0; | |
1127 | Int_t icl0=TMath::Nint(ncl*low); | |
1128 | Int_t icl1=TMath::Nint(ncl*up); | |
1129 | for (Int_t icl=icl0; icl<icl1;icl++){ | |
1130 | suma+=amp[indexes[icl]]; | |
1131 | sumn++; | |
1132 | } | |
1133 | return suma/sumn; | |
1134 | ||
1135 | } | |
1136 | ||
1137 | Double_t AliTPCseed::BetheMass(Double_t mass){ | |
1138 | // | |
1139 | // return bethe-bloch | |
1140 | // | |
1141 | Float_t bg= P()/mass; | |
1142 | const Double_t kp1=0.76176e-1; | |
1143 | const Double_t kp2=10.632; | |
1144 | const Double_t kp3=0.13279e-4; | |
1145 | const Double_t kp4=1.8631; | |
1146 | const Double_t kp5=1.9479; | |
1147 | ||
1148 | Double_t dbg = (Double_t) bg; | |
1149 | ||
1150 | Double_t beta = dbg/TMath::Sqrt(1.+dbg*dbg); | |
1151 | ||
1152 | Double_t aa = TMath::Power(beta,kp4); | |
1153 | Double_t bb = TMath::Power(1./dbg,kp5); | |
1154 | ||
1155 | bb=TMath::Log(kp3+bb); | |
1156 | ||
1157 | return ((Float_t)((kp2-aa-bb)*kp1/aa)); | |
1158 | } | |
1159 | ||
1160 | ||
eb02f63a | 1161 | Float_t AliTPCseed::CookShape(Int_t type){ |
1162 | // | |
1163 | // | |
1164 | // | |
1165 | //----------------------------------------------------------------- | |
1166 | // This funtion calculates dE/dX within the "low" and "up" cuts. | |
1167 | //----------------------------------------------------------------- | |
1168 | Float_t means=0; | |
1169 | Float_t meanc=0; | |
1170 | for (Int_t i =0; i<160;i++) { | |
1171 | AliTPCTrackerPoint * point = GetTrackPoint(i); | |
1172 | if (point==0) continue; | |
1173 | ||
1174 | AliTPCclusterMI * cl = fClusterPointer[i]; | |
1175 | if (cl==0) continue; | |
1176 | ||
1177 | Float_t rsigmay = TMath::Sqrt(point->GetSigmaY()); | |
1178 | Float_t rsigmaz = TMath::Sqrt(point->GetSigmaZ()); | |
1179 | Float_t rsigma = (rsigmay+rsigmaz)*0.5; | |
1180 | if (type==0) means+=rsigma; | |
1181 | if (type==1) means+=rsigmay; | |
1182 | if (type==2) means+=rsigmaz; | |
1183 | meanc++; | |
1184 | } | |
1185 | Float_t mean = (meanc>0)? means/meanc:0; | |
1186 | return mean; | |
1187 | } |