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0aaa8b91 | 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 | **************************************************************************/ | |
f2dec884 | 15 | // |
16 | // static dNdPt helper functions | |
17 | // | |
18 | // basic functionality to select events and tracks | |
19 | // for dNdPt analysis | |
20 | // | |
21 | // Origin: Jan Fiete Grosse-Oetringhaus | |
22 | // Modified and Extended: Jacek Otwinowski 19/11/2009 | |
23 | // | |
24 | // | |
0aaa8b91 | 25 | |
26 | #include <TROOT.h> | |
f2dec884 | 27 | #include <TCanvas.h> |
28 | #include <TF1.h> | |
0aaa8b91 | 29 | #include <TH1.h> |
30 | #include <TH2.h> | |
31 | #include <TH3.h> | |
0aaa8b91 | 32 | |
33 | #include <AliHeader.h> | |
34 | #include <AliStack.h> | |
35 | #include <AliLog.h> | |
0aaa8b91 | 36 | #include <AliESD.h> |
37 | #include <AliESDEvent.h> | |
38 | #include <AliMCEvent.h> | |
39 | #include <AliESDVertex.h> | |
40 | #include <AliVertexerTracks.h> | |
0aaa8b91 | 41 | #include <AliMathBase.h> |
42 | #include <AliESDtrackCuts.h> | |
774986ef | 43 | #include <AliTracker.h> |
0aaa8b91 | 44 | #include "dNdPt/AlidNdPtEventCuts.h" |
45 | #include "dNdPt/AlidNdPtAcceptanceCuts.h" | |
46 | #include "dNdPt/AlidNdPtHelper.h" | |
47 | ||
48 | //____________________________________________________________________ | |
49 | ClassImp(AlidNdPtHelper) | |
50 | ||
0aaa8b91 | 51 | //____________________________________________________________________ |
e9f7cb15 | 52 | const AliESDVertex* AlidNdPtHelper::GetVertex(AliESDEvent* const aEsd, const AlidNdPtEventCuts *const evtCuts, const AlidNdPtAcceptanceCuts *const accCuts, const AliESDtrackCuts *const trackCuts, AnalysisMode analysisMode, Bool_t debug, Bool_t bRedoTPC, Bool_t bUseMeanVertex) |
0aaa8b91 | 53 | { |
54 | // Get the vertex from the ESD and returns it if the vertex is valid | |
55 | // | |
56 | // Second argument decides which vertex is used (this selects | |
57 | // also the quality criteria that are applied) | |
58 | ||
59 | if(!aEsd) | |
60 | { | |
61 | ::Error("AlidNdPtHelper::GetVertex()","esd event is NULL"); | |
62 | return NULL; | |
63 | } | |
64 | ||
65 | if(!evtCuts || !accCuts || !trackCuts) | |
66 | { | |
67 | ::Error("AlidNdPtHelper::GetVertex()","cuts not available"); | |
68 | return NULL; | |
69 | } | |
70 | ||
71 | const AliESDVertex* vertex = 0; | |
72 | AliESDVertex *initVertex = 0; | |
24c88fc4 | 73 | if (analysisMode == kSPD || |
774986ef | 74 | analysisMode == kTPCSPDvtx || analysisMode == kTPCSPDvtxUpdate || analysisMode == kTPCITSHybrid) |
0aaa8b91 | 75 | { |
76 | vertex = aEsd->GetPrimaryVertexSPD(); | |
77 | if (debug) | |
78 | Printf("AlidNdPtHelper::GetVertex: Returning SPD vertex"); | |
24c88fc4 | 79 | } |
80 | else if (analysisMode == kTPCITS || analysisMode == kTPCTrackSPDvtx || analysisMode == kTPCTrackSPDvtxUpdate || | |
695facdf | 81 | analysisMode == kTPCITSHybridTrackSPDvtx || analysisMode == kTPCITSHybridTrackSPDvtxDCArPt || |
82 | analysisMode == kITSStandAloneTrackSPDvtx || analysisMode == kITSStandAloneTPCTrackSPDvtx) | |
791aaf54 | 83 | { |
84 | vertex = aEsd->GetPrimaryVertexTracks(); | |
85 | if(!vertex) return NULL; | |
86 | if(vertex->GetNContributors()<1) { | |
87 | // SPD vertex | |
88 | vertex = aEsd->GetPrimaryVertexSPD(); | |
89 | } | |
90 | } | |
847e74b2 | 91 | else if (analysisMode == kTPC) |
0aaa8b91 | 92 | { |
93 | if(bRedoTPC) { | |
94 | ||
95 | Double_t kBz = aEsd->GetMagneticField(); | |
96 | AliVertexerTracks vertexer(kBz); | |
97 | ||
98 | if(bUseMeanVertex) { | |
99 | Double_t pos[3]={evtCuts->GetMeanXv(),evtCuts->GetMeanYv(),evtCuts->GetMeanZv()}; | |
100 | Double_t err[3]={evtCuts->GetSigmaMeanXv(),evtCuts->GetSigmaMeanYv(),evtCuts->GetSigmaMeanZv()}; | |
0aaa8b91 | 101 | initVertex = new AliESDVertex(pos,err); |
102 | vertexer.SetVtxStart(initVertex); | |
103 | vertexer.SetConstraintOn(); | |
104 | } | |
105 | ||
0aaa8b91 | 106 | Double_t maxDCAr = accCuts->GetMaxDCAr(); |
107 | Double_t maxDCAz = accCuts->GetMaxDCAz(); | |
108 | Int_t minTPCClust = trackCuts->GetMinNClusterTPC(); | |
109 | ||
bad4ba69 | 110 | //vertexer.SetTPCMode(Double_t dcacut=0.1, Double_t dcacutIter0=1.0, Double_t maxd0z0=5.0, Int_t minCls=10, Int_t mintrks=1, Double_t nsigma=3., Double_t mindetfitter=0.1, Double_t maxtgl=1.5, Double_t fidR=3., Double_t fidZ=30., Int_t finderAlgo=1, Int_t finderAlgoIter0=4); |
0aaa8b91 | 111 | vertexer.SetTPCMode(0.1,1.0,5.0,minTPCClust,1,3.,0.1,2.0,maxDCAr,maxDCAz,1,4); |
112 | ||
113 | // TPC track preselection | |
114 | Int_t ntracks = aEsd->GetNumberOfTracks(); | |
115 | TObjArray array(ntracks); | |
116 | UShort_t *id = new UShort_t[ntracks]; | |
117 | ||
db7f25fe | 118 | |
0aaa8b91 | 119 | Int_t count=0; |
120 | for (Int_t i=0;i <ntracks; i++) { | |
121 | AliESDtrack *t = aEsd->GetTrack(i); | |
122 | if (!t) continue; | |
123 | if (t->Charge() == 0) continue; | |
124 | if (!t->GetTPCInnerParam()) continue; | |
125 | if (t->GetTPCNcls()<vertexer.GetMinClusters()) continue; | |
126 | AliExternalTrackParam *tpcTrack = new AliExternalTrackParam(*(t->GetTPCInnerParam())); | |
127 | if(tpcTrack) { | |
128 | array.AddLast(tpcTrack); | |
129 | id[count] = (UShort_t)t->GetID(); | |
130 | count++; | |
131 | } | |
132 | } | |
133 | AliESDVertex *vTPC = vertexer.VertexForSelectedTracks(&array,id, kTRUE, kTRUE, bUseMeanVertex); | |
db7f25fe | 134 | if(!vTPC) { |
135 | delete [] id; id=NULL; | |
136 | return 0; | |
137 | } | |
bad4ba69 | 138 | |
139 | // set recreated TPC vertex | |
0aaa8b91 | 140 | aEsd->SetPrimaryVertexTPC(vTPC); |
141 | ||
142 | for (Int_t i=0; i<aEsd->GetNumberOfTracks(); i++) { | |
143 | AliESDtrack *t = aEsd->GetTrack(i); | |
774986ef | 144 | if(!t) continue; |
145 | ||
146 | Double_t x[3]; t->GetXYZ(x); | |
147 | Double_t b[3]; AliTracker::GetBxByBz(x,b); | |
148 | t->RelateToVertexTPCBxByBz(vTPC, b, kVeryBig); | |
0aaa8b91 | 149 | } |
150 | ||
151 | delete vTPC; | |
152 | array.Delete(); | |
153 | delete [] id; id=NULL; | |
154 | ||
155 | } | |
156 | vertex = aEsd->GetPrimaryVertexTPC(); | |
157 | if (debug) | |
774986ef | 158 | Printf("AlidNdPtHelper::GetVertex: Returning vertex from tracks"); |
159 | } | |
160 | else | |
161 | Printf("AlidNdPtHelper::GetVertex: ERROR: Invalid second argument %d", analysisMode); | |
0aaa8b91 | 162 | |
163 | if (!vertex) { | |
164 | if (debug) | |
165 | Printf("AlidNdPtHelper::GetVertex: No vertex found in ESD"); | |
166 | return 0; | |
167 | } | |
168 | ||
169 | if (debug) | |
170 | { | |
171 | Printf("AlidNdPtHelper::GetVertex: Returning valid vertex: %s", vertex->GetTitle()); | |
172 | vertex->Print(); | |
173 | } | |
174 | ||
175 | if(initVertex) delete initVertex; initVertex=NULL; | |
176 | return vertex; | |
177 | } | |
178 | ||
bad4ba69 | 179 | //____________________________________________________________________ |
791aaf54 | 180 | Bool_t AlidNdPtHelper::TestRecVertex(const AliESDVertex* vertex, const AliESDVertex* vertexSPD, AnalysisMode analysisMode, Bool_t debug) |
bad4ba69 | 181 | { |
182 | // Checks if a vertex meets the needed quality criteria | |
183 | if(!vertex) return kFALSE; | |
774986ef | 184 | if(!vertex->GetStatus()) return kFALSE; |
bad4ba69 | 185 | |
186 | Float_t requiredZResolution = -1; | |
774986ef | 187 | if (analysisMode == kSPD || analysisMode == kTPCITS || |
791aaf54 | 188 | analysisMode == kTPCSPDvtx || analysisMode == kTPCSPDvtxUpdate || analysisMode == kTPCITSHybrid || |
189 | analysisMode == kTPCTrackSPDvtx || analysisMode == kTPCTrackSPDvtxUpdate || analysisMode == kTPCITSHybridTrackSPDvtx || analysisMode == kTPCITSHybridTrackSPDvtxDCArPt | |
695facdf | 190 | || analysisMode == kITSStandAloneTrackSPDvtx || analysisMode == kITSStandAloneTPCTrackSPDvtx) |
bad4ba69 | 191 | { |
774986ef | 192 | requiredZResolution = 1000; |
bad4ba69 | 193 | } |
847e74b2 | 194 | else if (analysisMode == kTPC) |
bad4ba69 | 195 | requiredZResolution = 10.; |
196 | ||
774986ef | 197 | // check resolution |
198 | Double_t zRes = vertex->GetZRes(); | |
199 | ||
200 | if (zRes > requiredZResolution) { | |
201 | if (debug) | |
202 | Printf("AlidNdPtHelper::TestVertex: Resolution too poor %f (required: %f", zRes, requiredZResolution); | |
203 | return kFALSE; | |
204 | } | |
791aaf54 | 205 | |
206 | // always check for SPD vertex | |
207 | if(!vertexSPD) return kFALSE; | |
208 | if(!vertexSPD->GetStatus()) return kFALSE; | |
209 | if (vertexSPD->IsFromVertexerZ()) | |
774986ef | 210 | { |
791aaf54 | 211 | if (vertexSPD->GetDispersion() > 0.02) |
774986ef | 212 | { |
213 | if (debug) | |
214 | Printf("AliPWG0Helper::TestVertex: Delta Phi too large in Vertexer Z: %f (required: %f", vertex->GetDispersion(), 0.02); | |
215 | return kFALSE; | |
216 | } | |
217 | } | |
218 | ||
bad4ba69 | 219 | |
220 | return kTRUE; | |
221 | } | |
222 | ||
791aaf54 | 223 | //____________________________________________________________________ |
e9f7cb15 | 224 | Bool_t AlidNdPtHelper::IsGoodImpPar(const AliESDtrack *const track) |
791aaf54 | 225 | { |
226 | // | |
227 | // check whether particle has good DCAr(Pt) impact | |
228 | // parameter. Only for TPC+ITS tracks (7*sigma cut) | |
229 | // Origin: Andrea Dainese | |
230 | // | |
231 | ||
232 | Float_t d0z0[2],covd0z0[3]; | |
233 | track->GetImpactParameters(d0z0,covd0z0); | |
234 | Float_t sigma= 0.0050+0.0060/TMath::Power(track->Pt(),0.9); | |
235 | Float_t d0max = 7.*sigma; | |
236 | if(TMath::Abs(d0z0[0]) < d0max) return kTRUE; | |
237 | ||
238 | return kFALSE; | |
239 | } | |
240 | ||
0aaa8b91 | 241 | //____________________________________________________________________ |
f2dec884 | 242 | Bool_t AlidNdPtHelper::IsPrimaryParticle(AliStack* const stack, Int_t idx, ParticleMode particleMode) |
0aaa8b91 | 243 | { |
774986ef | 244 | // |
0aaa8b91 | 245 | // check primary particles |
847e74b2 | 246 | // depending on the particle mode |
0aaa8b91 | 247 | // |
248 | if(!stack) return kFALSE; | |
249 | ||
250 | TParticle* particle = stack->Particle(idx); | |
251 | if (!particle) return kFALSE; | |
252 | ||
253 | // only charged particles | |
254 | Double_t charge = particle->GetPDG()->Charge()/3.; | |
f2dec884 | 255 | if (TMath::Abs(charge) < 0.001) return kFALSE; |
0aaa8b91 | 256 | |
257 | Int_t pdg = TMath::Abs(particle->GetPdgCode()); | |
258 | ||
259 | // physical primary | |
260 | Bool_t prim = stack->IsPhysicalPrimary(idx); | |
261 | ||
847e74b2 | 262 | if(particleMode==kMCPion) { |
0aaa8b91 | 263 | if(prim && pdg==kPiPlus) return kTRUE; |
264 | else return kFALSE; | |
265 | } | |
266 | ||
847e74b2 | 267 | if (particleMode==kMCKaon) { |
0aaa8b91 | 268 | if(prim && pdg==kKPlus) return kTRUE; |
269 | else return kFALSE; | |
270 | } | |
271 | ||
847e74b2 | 272 | if (particleMode==kMCProton) { |
0aaa8b91 | 273 | if(prim && pdg==kProton) return kTRUE; |
274 | else return kFALSE; | |
275 | } | |
276 | ||
17e8c701 | 277 | if(particleMode==kMCRest) { |
278 | if(prim && pdg!=kPiPlus && pdg!=kKPlus && pdg!=kProton) return kTRUE; | |
279 | else return kFALSE; | |
280 | } | |
281 | ||
0aaa8b91 | 282 | return prim; |
283 | } | |
284 | ||
d269b0e6 | 285 | //____________________________________________________________________ |
f2dec884 | 286 | Bool_t AlidNdPtHelper::IsCosmicTrack(AliESDtrack *const track1, AliESDtrack *const track2) |
d269b0e6 | 287 | { |
288 | // | |
289 | // check cosmic tracks | |
290 | // | |
291 | if(!track1) return kFALSE; | |
292 | if(!track2) return kFALSE; | |
d269b0e6 | 293 | |
774986ef | 294 | // |
295 | // cosmic tracks in TPC | |
296 | // | |
297 | //if( TMath::Abs( track1->Theta() - track2->Theta() ) < 0.004 && | |
298 | // ((TMath::Abs(track1->Phi()-track2->Phi()) - TMath::Pi() )<0.004) && | |
299 | //if( track1->Pt() > 4.0 && (TMath::Abs(track1->Phi()-track2->Phi())-TMath::Pi())<0.1 | |
300 | // && (TMath::Abs(track1->Eta()+track2->Eta())-0.1) < 0.0 && (track1->Charge()+track2->Charge()) == 0) | |
301 | ||
302 | //Float_t scaleF= 6.0; | |
303 | if ( track1->Pt() > 4 && track2->Pt() > 4 && | |
304 | //(TMath::Abs(track1->GetSnp()-track2->GetSnp())-2.) < scaleF * TMath::Sqrt(track1->GetSigmaSnp2()+track2->GetSigmaSnp2()) && | |
305 | //TMath::Abs(track1->GetTgl()-track2->GetTgl()) < scaleF * TMath::Sqrt(track1->GetSigmaTgl2()+track2->GetSigmaTgl2()) && | |
306 | //TMath::Abs(track1->OneOverPt()-track2->OneOverPt()) < scaleF * TMath::Sqrt(track1->GetSigma1Pt2()+track2->GetSigma1Pt2()) && | |
307 | (track1->Charge()+track2->Charge()) == 0 && | |
308 | track1->Eta()*track2->Eta()<0.0 && TMath::Abs(track1->Eta()+track2->Eta())<0.03 && | |
309 | TMath::Abs(TMath::Abs(track1->Phi()-track2->Phi())-TMath::Pi())<0.1 | |
310 | ) | |
d269b0e6 | 311 | { |
774986ef | 312 | printf("COSMIC candidate \n"); |
d269b0e6 | 313 | |
774986ef | 314 | printf("track1->Pt() %f, track1->Theta() %f, track1->Eta() %f, track1->Phi() %f, track1->Charge() %d \n", track1->Pt(), track1->Theta(), track1->Eta(), track1->Phi(), track1->Charge()); |
315 | printf("track2->Pt() %f, track2->Theta() %f, track2->Eta() %f, track2->Phi() %f, track2->Charge() %d \n", track2->Pt(), track2->Theta(), track2->Eta(), track2->Phi(), track2->Charge()); | |
316 | printf("dtheta %f, deta %f, dphi %f, dq %d \n", track1->Theta()-track2->Theta(), track1->Eta()-track2->Eta(), track1->Phi()-track2->Phi(), track1->Charge()+track2->Charge()); | |
317 | printf("dsphi %f, errsphi %f, dtanl %f, errtanl %f \n", TMath::Abs(track1->GetSnp()-track2->GetSnp()), TMath::Sqrt(track1->GetSigmaSnp2()+track2->GetSigmaSnp2()), TMath::Abs(track1->GetTgl()-track2->GetTgl()), TMath::Sqrt(track1->GetSigmaTgl2()+track2->GetSigmaTgl2())); | |
318 | return kTRUE; | |
319 | } | |
847e74b2 | 320 | |
321 | return kFALSE; | |
322 | } | |
323 | ||
0aaa8b91 | 324 | //____________________________________________________________________ |
70fdd197 | 325 | void AlidNdPtHelper::PrintConf(AnalysisMode analysisMode, AliTriggerAnalysis::Trigger trigger) |
0aaa8b91 | 326 | { |
327 | // | |
328 | // Prints the given configuration | |
329 | // | |
330 | ||
331 | TString str(">>>> Running with "); | |
332 | ||
333 | switch (analysisMode) | |
334 | { | |
335 | case kInvalid: str += "invalid setting"; break; | |
336 | case kSPD : str += "SPD-only"; break; | |
337 | case kTPC : str += "TPC-only"; break; | |
338 | case kTPCITS : str += "Global tracking"; break; | |
339 | case kTPCSPDvtx : str += "TPC tracking + SPD event vertex"; break; | |
847e74b2 | 340 | case kTPCSPDvtxUpdate : str += "TPC tracks updated with SPD event vertex point"; break; |
791aaf54 | 341 | case kTPCTrackSPDvtx : str += "TPC tracking + Tracks event vertex or SPD event vertex"; break; |
342 | case kTPCTrackSPDvtxUpdate : str += "TPC tracks updated with Track or SPD event vertex point"; break; | |
774986ef | 343 | case kTPCITSHybrid : str += "TPC tracking + ITS refit + >1 SPD cluster"; break; |
791aaf54 | 344 | case kTPCITSHybridTrackSPDvtx : str += "TPC tracking + ITS refit + >1 SPD cluster + Tracks event vertex or SPD event vertex"; break; |
345 | case kTPCITSHybridTrackSPDvtxDCArPt : str += "TPC tracking + ITS refit + >1 SPD cluster + Tracks event vertex or SPD event vertex + DCAr(pt)"; break; | |
695facdf | 346 | case kITSStandAloneTrackSPDvtx : str += "ITS standalone + Tracks event vertex or SPD event vertex + DCAr(pt)"; break; |
347 | case kITSStandAloneTPCTrackSPDvtx : str += "kITSStandAloneTPCTrackSPDvtx + TPC stand alone track + Tracks event vertex or SPD event vertex + DCAr(pt)"; break; | |
0aaa8b91 | 348 | case kMCRec : str += "TPC tracking + Replace rec. with MC values"; break; |
0aaa8b91 | 349 | } |
350 | str += " and trigger "; | |
351 | ||
70fdd197 | 352 | str += AliTriggerAnalysis::GetTriggerName(trigger); |
0aaa8b91 | 353 | |
354 | str += " <<<<"; | |
355 | ||
356 | Printf("%s", str.Data()); | |
357 | } | |
358 | ||
359 | //____________________________________________________________________ | |
e9f7cb15 | 360 | Int_t AlidNdPtHelper::ConvertPdgToPid(const TParticle *const particle) { |
0aaa8b91 | 361 | // |
362 | // Convert Abs(pdg) to pid | |
363 | // (0 - e, 1 - muons, 2 - pions, 3 - kaons, 4 - protons, 5 -all rest) | |
364 | // | |
365 | Int_t pid=-1; | |
366 | ||
367 | if (TMath::Abs(particle->GetPdgCode()) == kElectron) { pid = 0; } | |
368 | else if (TMath::Abs(particle->GetPdgCode()) == kMuonMinus) { pid = 1; } | |
369 | else if (TMath::Abs(particle->GetPdgCode()) == kPiPlus) { pid = 2; } | |
370 | else if (TMath::Abs(particle->GetPdgCode()) == kKPlus) { pid = 3; } | |
371 | else if (TMath::Abs(particle->GetPdgCode()) == kProton) { pid = 4; } | |
372 | else { pid = 5; } | |
373 | ||
374 | return pid; | |
375 | } | |
376 | ||
377 | //_____________________________________________________________________________ | |
f2dec884 | 378 | TH1F* AlidNdPtHelper::CreateResHisto(TH2F* const hRes2, TH1F **phMean, Int_t integ, Bool_t drawBinFits, Int_t minHistEntries) |
0aaa8b91 | 379 | { |
bad4ba69 | 380 | // |
381 | // Create mean and resolution | |
382 | // histograms | |
383 | // | |
0aaa8b91 | 384 | TVirtualPad* currentPad = gPad; |
385 | TAxis* axis = hRes2->GetXaxis(); | |
386 | Int_t nBins = axis->GetNbins(); | |
62e3b4b6 | 387 | //Bool_t overflowBinFits = kFALSE; |
0aaa8b91 | 388 | TH1F* hRes, *hMean; |
389 | if (axis->GetXbins()->GetSize()){ | |
390 | hRes = new TH1F("hRes", "", nBins, axis->GetXbins()->GetArray()); | |
391 | hMean = new TH1F("hMean", "", nBins, axis->GetXbins()->GetArray()); | |
392 | } | |
393 | else{ | |
394 | hRes = new TH1F("hRes", "", nBins, axis->GetXmin(), axis->GetXmax()); | |
395 | hMean = new TH1F("hMean", "", nBins, axis->GetXmin(), axis->GetXmax()); | |
396 | ||
397 | } | |
398 | hRes->SetStats(false); | |
399 | hRes->SetOption("E"); | |
400 | hRes->SetMinimum(0.); | |
401 | // | |
402 | hMean->SetStats(false); | |
403 | hMean->SetOption("E"); | |
404 | ||
405 | // create the fit function | |
406 | TF1 * fitFunc = new TF1("G","[0]*exp(-(x-[1])*(x-[1])/(2.*[2]*[2]))",-3,3); | |
407 | ||
408 | fitFunc->SetLineWidth(2); | |
409 | fitFunc->SetFillStyle(0); | |
410 | // create canvas for fits | |
411 | TCanvas* canBinFits = NULL; | |
62e3b4b6 | 412 | //Int_t nPads = (overflowBinFits) ? nBins+2 : nBins; |
413 | Int_t nPads = nBins; | |
0aaa8b91 | 414 | Int_t nx = Int_t(sqrt(nPads-1.));// + 1; |
415 | Int_t ny = (nPads-1) / nx + 1; | |
416 | if (drawBinFits) { | |
417 | canBinFits = (TCanvas*)gROOT->FindObject("canBinFits"); | |
418 | if (canBinFits) delete canBinFits; | |
419 | canBinFits = new TCanvas("canBinFits", "fits of bins", 200, 100, 500, 700); | |
420 | canBinFits->Divide(nx, ny); | |
421 | } | |
422 | ||
423 | // loop over x bins and fit projection | |
62e3b4b6 | 424 | //Int_t dBin = ((overflowBinFits) ? 1 : 0); |
425 | Int_t dBin = 0; | |
0aaa8b91 | 426 | for (Int_t bin = 1-dBin; bin <= nBins+dBin; bin++) { |
427 | if (drawBinFits) canBinFits->cd(bin + dBin); | |
428 | Int_t bin0=TMath::Max(bin-integ,0); | |
429 | Int_t bin1=TMath::Min(bin+integ,nBins); | |
430 | TH1D* hBin = hRes2->ProjectionY("hBin", bin0, bin1); | |
431 | // | |
432 | if (hBin->GetEntries() > minHistEntries) { | |
433 | fitFunc->SetParameters(hBin->GetMaximum(),hBin->GetMean(),hBin->GetRMS()); | |
434 | hBin->Fit(fitFunc,"s"); | |
435 | Double_t sigma = TMath::Abs(fitFunc->GetParameter(2)); | |
436 | ||
437 | if (sigma > 0.){ | |
438 | hRes->SetBinContent(bin, TMath::Abs(fitFunc->GetParameter(2))); | |
439 | hMean->SetBinContent(bin, fitFunc->GetParameter(1)); | |
440 | } | |
441 | else{ | |
442 | hRes->SetBinContent(bin, 0.); | |
443 | hMean->SetBinContent(bin,0); | |
444 | } | |
445 | hRes->SetBinError(bin, fitFunc->GetParError(2)); | |
446 | hMean->SetBinError(bin, fitFunc->GetParError(1)); | |
447 | ||
448 | // | |
449 | // | |
450 | ||
451 | } else { | |
452 | hRes->SetBinContent(bin, 0.); | |
453 | hRes->SetBinError(bin, 0.); | |
454 | hMean->SetBinContent(bin, 0.); | |
455 | hMean->SetBinError(bin, 0.); | |
456 | } | |
457 | ||
458 | ||
459 | if (drawBinFits) { | |
460 | char name[256]; | |
461 | if (bin == 0) { | |
b4cdc39d | 462 | snprintf(name,256, "%s < %.4g", axis->GetTitle(), axis->GetBinUpEdge(bin)); |
0aaa8b91 | 463 | } else if (bin == nBins+1) { |
b4cdc39d | 464 | snprintf(name,256, "%.4g < %s", axis->GetBinLowEdge(bin), axis->GetTitle()); |
0aaa8b91 | 465 | } else { |
b4cdc39d | 466 | snprintf(name,256, "%.4g < %s < %.4g", axis->GetBinLowEdge(bin), |
0aaa8b91 | 467 | axis->GetTitle(), axis->GetBinUpEdge(bin)); |
468 | } | |
469 | canBinFits->cd(bin + dBin); | |
470 | hBin->SetTitle(name); | |
471 | hBin->SetStats(kTRUE); | |
472 | hBin->DrawCopy("E"); | |
473 | canBinFits->Update(); | |
474 | canBinFits->Modified(); | |
475 | canBinFits->Update(); | |
476 | } | |
477 | ||
478 | delete hBin; | |
479 | } | |
480 | ||
481 | delete fitFunc; | |
482 | currentPad->cd(); | |
483 | *phMean = hMean; | |
484 | return hRes; | |
485 | } | |
486 | ||
487 | //_____________________________________________________________________________ | |
488 | TH1F* AlidNdPtHelper::MakeResol(TH2F * his, Int_t integ, Bool_t type, Bool_t drawBins, Int_t minHistEntries){ | |
489 | // Create resolution histograms | |
490 | ||
491 | TH1F *hisr=0, *hism=0; | |
492 | if (!gPad) new TCanvas; | |
0aaa8b91 | 493 | hisr = CreateResHisto(his,&hism,integ,drawBins,minHistEntries); |
494 | if (type) return hism; | |
495 | else return hisr; | |
496 | ||
497 | return hisr; | |
498 | } | |
499 | ||
500 | //_____________________________________________________________________________ | |
bad4ba69 | 501 | TObjArray* AlidNdPtHelper::GetAllChargedTracks(AliESDEvent *esdEvent, AnalysisMode analysisMode) |
0aaa8b91 | 502 | { |
503 | // | |
504 | // all charged TPC particles | |
505 | // | |
506 | TObjArray *allTracks = new TObjArray(); | |
507 | if(!allTracks) return allTracks; | |
508 | ||
509 | AliESDtrack *track=0; | |
510 | for (Int_t iTrack = 0; iTrack < esdEvent->GetNumberOfTracks(); iTrack++) | |
511 | { | |
847e74b2 | 512 | if(analysisMode == AlidNdPtHelper::kTPC) { |
774986ef | 513 | // |
847e74b2 | 514 | // track must be deleted by user |
774986ef | 515 | // esd track parameters are replaced by TPCinner |
516 | // | |
bad4ba69 | 517 | track = AliESDtrackCuts::GetTPCOnlyTrack(esdEvent,iTrack); |
847e74b2 | 518 | if(!track) continue; |
519 | } | |
774986ef | 520 | else if (analysisMode == AlidNdPtHelper::kTPCSPDvtx || analysisMode == AlidNdPtHelper::kTPCSPDvtxUpdate) |
847e74b2 | 521 | { |
774986ef | 522 | // |
847e74b2 | 523 | // track must be deleted by the user |
774986ef | 524 | // esd track parameters are replaced by TPCinner |
525 | // | |
847e74b2 | 526 | track = AlidNdPtHelper::GetTPCOnlyTrackSPDvtx(esdEvent,iTrack,kFALSE); |
527 | if(!track) continue; | |
528 | } | |
791aaf54 | 529 | else if (analysisMode == AlidNdPtHelper::kTPCTrackSPDvtx || analysisMode == AlidNdPtHelper::kTPCTrackSPDvtxUpdate) |
530 | { | |
531 | // | |
532 | // track must be deleted by the user | |
533 | // esd track parameters are replaced by TPCinner | |
534 | // | |
535 | track = AlidNdPtHelper::GetTPCOnlyTrackTrackSPDvtx(esdEvent,iTrack,kFALSE); | |
536 | if(!track) continue; | |
537 | } | |
695facdf | 538 | else if(analysisMode == AlidNdPtHelper::kTPCITSHybrid ) |
774986ef | 539 | { |
540 | track = AlidNdPtHelper::GetTrackSPDvtx(esdEvent,iTrack,kFALSE); | |
541 | } | |
68f10917 | 542 | else if(analysisMode == AlidNdPtHelper::kTPCITSHybridTrackSPDvtx || analysisMode == AlidNdPtHelper::kTPCITSHybridTrackSPDvtxDCArPt || analysisMode == AlidNdPtHelper::kITSStandAloneTrackSPDvtx || analysisMode ==AlidNdPtHelper::kITSStandAloneTPCTrackSPDvtx) |
791aaf54 | 543 | { |
544 | track = AlidNdPtHelper::GetTrackTrackSPDvtx(esdEvent,iTrack,kFALSE); | |
545 | } | |
774986ef | 546 | else |
547 | { | |
548 | track = esdEvent->GetTrack(iTrack); | |
0aaa8b91 | 549 | } |
774986ef | 550 | |
0aaa8b91 | 551 | if(!track) continue; |
552 | ||
553 | if(track->Charge()==0) { | |
791aaf54 | 554 | if(analysisMode == AlidNdPtHelper::kTPC || |
555 | analysisMode == AlidNdPtHelper::kTPCSPDvtx || analysisMode == AlidNdPtHelper::kTPCTrackSPDvtx || | |
556 | analysisMode == AlidNdPtHelper::kTPCSPDvtxUpdate || analysisMode == AlidNdPtHelper::kTPCTrackSPDvtxUpdate) | |
847e74b2 | 557 | { |
0aaa8b91 | 558 | delete track; continue; |
559 | } else { | |
560 | continue; | |
561 | } | |
562 | } | |
563 | ||
564 | allTracks->Add(track); | |
565 | } | |
bad4ba69 | 566 | |
791aaf54 | 567 | if(analysisMode == AlidNdPtHelper::kTPC || |
568 | analysisMode == AlidNdPtHelper::kTPCSPDvtx || analysisMode == AlidNdPtHelper::kTPCTrackSPDvtx || | |
569 | analysisMode == AlidNdPtHelper::kTPCSPDvtxUpdate || analysisMode == AlidNdPtHelper::kTPCTrackSPDvtxUpdate) { | |
bad4ba69 | 570 | |
571 | allTracks->SetOwner(kTRUE); | |
572 | } | |
0aaa8b91 | 573 | |
574 | return allTracks; | |
575 | } | |
576 | ||
847e74b2 | 577 | //_____________________________________________________________________________ |
e9f7cb15 | 578 | AliESDtrack *AlidNdPtHelper::GetTPCOnlyTrackSPDvtx(const AliESDEvent* esdEvent, Int_t iTrack, Bool_t bUpdate) |
847e74b2 | 579 | { |
580 | // | |
581 | // Create ESD tracks from TPCinner parameters. | |
582 | // Propagte to DCA to SPD vertex. | |
583 | // Update using SPD vertex point (parameter) | |
584 | // | |
585 | // It is user responsibility to delete these tracks | |
586 | // | |
587 | ||
588 | if (!esdEvent) return NULL; | |
589 | if (!esdEvent->GetPrimaryVertexSPD() ) { return NULL; } | |
590 | if (!esdEvent->GetPrimaryVertexSPD()->GetStatus() ) { return NULL; } | |
591 | ||
592 | // | |
593 | AliESDtrack* track = esdEvent->GetTrack(iTrack); | |
594 | if (!track) | |
595 | return NULL; | |
596 | ||
774986ef | 597 | Bool_t isOK = kFALSE; |
598 | Double_t x[3]; track->GetXYZ(x); | |
599 | Double_t b[3]; AliTracker::GetBxByBz(x,b); | |
600 | ||
847e74b2 | 601 | // create new ESD track |
602 | AliESDtrack *tpcTrack = new AliESDtrack(); | |
603 | ||
604 | // relate TPC-only tracks (TPCinner) to SPD vertex | |
605 | AliExternalTrackParam cParam; | |
606 | if(bUpdate) { | |
774986ef | 607 | isOK = track->RelateToVertexTPCBxByBz(esdEvent->GetPrimaryVertexSPD(),b,kVeryBig,&cParam); |
847e74b2 | 608 | track->Set(cParam.GetX(),cParam.GetAlpha(),cParam.GetParameter(),cParam.GetCovariance()); |
609 | ||
610 | // reject fake tracks | |
611 | if(track->Pt() > 10000.) { | |
612 | ::Error("Exclude no physical tracks","pt>10000. GeV"); | |
613 | delete tpcTrack; | |
614 | return NULL; | |
615 | } | |
616 | } | |
617 | else { | |
774986ef | 618 | isOK = track->RelateToVertexTPCBxByBz(esdEvent->GetPrimaryVertexSPD(), b, kVeryBig); |
847e74b2 | 619 | } |
620 | ||
621 | // only true if we have a tpc track | |
622 | if (!track->FillTPCOnlyTrack(*tpcTrack)) | |
623 | { | |
624 | delete tpcTrack; | |
625 | return NULL; | |
626 | } | |
774986ef | 627 | |
628 | if(!isOK) return NULL; | |
847e74b2 | 629 | |
630 | return tpcTrack; | |
631 | } | |
632 | ||
791aaf54 | 633 | //_____________________________________________________________________________ |
e9f7cb15 | 634 | AliESDtrack *AlidNdPtHelper::GetTPCOnlyTrackTrackSPDvtx(const AliESDEvent* esdEvent, Int_t iTrack, Bool_t bUpdate) |
791aaf54 | 635 | { |
636 | // | |
637 | // Create ESD tracks from TPCinner parameters. | |
638 | // Propagte to DCA to Track or SPD vertex. | |
639 | // Update using SPD vertex point (parameter) | |
640 | // | |
641 | // It is user responsibility to delete these tracks | |
642 | // | |
643 | if (!esdEvent) return NULL; | |
644 | const AliESDVertex *vertex = esdEvent->GetPrimaryVertexTracks(); | |
645 | if(vertex->GetNContributors()<1) { | |
646 | // SPD vertex | |
647 | vertex = esdEvent->GetPrimaryVertexSPD(); | |
648 | } | |
649 | if(!vertex) return NULL; | |
650 | ||
651 | // | |
652 | AliESDtrack* track = esdEvent->GetTrack(iTrack); | |
653 | if (!track) | |
654 | return NULL; | |
655 | ||
656 | Bool_t isOK = kFALSE; | |
657 | Double_t x[3]; track->GetXYZ(x); | |
658 | Double_t b[3]; AliTracker::GetBxByBz(x,b); | |
659 | ||
660 | // create new ESD track | |
661 | AliESDtrack *tpcTrack = new AliESDtrack(); | |
662 | ||
663 | // relate TPC-only tracks (TPCinner) to SPD vertex | |
664 | AliExternalTrackParam cParam; | |
665 | if(bUpdate) { | |
666 | isOK = track->RelateToVertexTPCBxByBz(vertex,b,kVeryBig,&cParam); | |
667 | track->Set(cParam.GetX(),cParam.GetAlpha(),cParam.GetParameter(),cParam.GetCovariance()); | |
668 | ||
669 | // reject fake tracks | |
670 | if(track->Pt() > 10000.) { | |
671 | ::Error("Exclude no physical tracks","pt>10000. GeV"); | |
672 | delete tpcTrack; | |
673 | return NULL; | |
674 | } | |
675 | } | |
676 | else { | |
677 | isOK = track->RelateToVertexTPCBxByBz(vertex, b, kVeryBig); | |
678 | } | |
679 | ||
680 | // only true if we have a tpc track | |
681 | if (!track->FillTPCOnlyTrack(*tpcTrack)) | |
682 | { | |
683 | delete tpcTrack; | |
684 | return NULL; | |
685 | } | |
686 | ||
687 | if(!isOK) return NULL; | |
688 | ||
689 | return tpcTrack; | |
690 | } | |
691 | ||
774986ef | 692 | //_____________________________________________________________________________ |
e9f7cb15 | 693 | AliESDtrack *AlidNdPtHelper::GetTrackSPDvtx(const AliESDEvent* esdEvent, Int_t iTrack, Bool_t bUpdate) |
774986ef | 694 | { |
695 | // | |
696 | // Propagte track to DCA to SPD vertex. | |
697 | // Update using SPD vertex point (parameter) | |
698 | // | |
699 | if (!esdEvent) return NULL; | |
700 | if (!esdEvent->GetPrimaryVertexSPD() ) { return NULL; } | |
701 | if (!esdEvent->GetPrimaryVertexSPD()->GetStatus() ) { return NULL; } | |
702 | ||
703 | // | |
704 | AliESDtrack* track = esdEvent->GetTrack(iTrack); | |
705 | if (!track) | |
706 | return NULL; | |
707 | ||
708 | Bool_t isOK = kFALSE; | |
709 | Double_t x[3]; track->GetXYZ(x); | |
710 | Double_t b[3]; AliTracker::GetBxByBz(x,b); | |
711 | ||
712 | // relate tracks to SPD vertex | |
713 | AliExternalTrackParam cParam; | |
714 | if(bUpdate) { | |
715 | isOK = track->RelateToVertexBxByBz(esdEvent->GetPrimaryVertexSPD(),b,kVeryBig,&cParam); | |
716 | track->Set(cParam.GetX(),cParam.GetAlpha(),cParam.GetParameter(),cParam.GetCovariance()); | |
717 | ||
718 | // reject fake tracks | |
719 | if(track->Pt() > 10000.) { | |
720 | ::Error("Exclude no physical tracks","pt>10000. GeV"); | |
721 | return NULL; | |
722 | } | |
723 | } | |
724 | else { | |
725 | isOK = track->RelateToVertexBxByBz(esdEvent->GetPrimaryVertexSPD(), b, kVeryBig); | |
726 | } | |
727 | ||
728 | if(!isOK) return NULL; | |
729 | ||
730 | return track; | |
731 | } | |
732 | ||
791aaf54 | 733 | //_____________________________________________________________________________ |
e9f7cb15 | 734 | AliESDtrack *AlidNdPtHelper::GetTrackTrackSPDvtx(const AliESDEvent* esdEvent, Int_t iTrack, Bool_t bUpdate) |
791aaf54 | 735 | { |
736 | // | |
737 | // Propagte track to DCA to Track or SPD vertex. | |
738 | // Update using SPD vertex point (parameter) | |
739 | // | |
740 | if (!esdEvent) return NULL; | |
741 | ||
742 | const AliESDVertex *vertex = esdEvent->GetPrimaryVertexTracks(); | |
743 | if(vertex->GetNContributors()<1) { | |
744 | // SPD vertex | |
745 | vertex = esdEvent->GetPrimaryVertexSPD(); | |
746 | } | |
747 | if(!vertex) return NULL; | |
748 | ||
749 | // | |
750 | AliESDtrack* track = esdEvent->GetTrack(iTrack); | |
751 | if (!track) | |
752 | return NULL; | |
753 | ||
754 | Bool_t isOK = kFALSE; | |
755 | Double_t x[3]; track->GetXYZ(x); | |
756 | Double_t b[3]; AliTracker::GetBxByBz(x,b); | |
757 | ||
758 | // relate tracks to SPD vertex | |
759 | AliExternalTrackParam cParam; | |
760 | if(bUpdate) { | |
761 | isOK = track->RelateToVertexBxByBz(vertex,b,kVeryBig,&cParam); | |
762 | track->Set(cParam.GetX(),cParam.GetAlpha(),cParam.GetParameter(),cParam.GetCovariance()); | |
763 | ||
764 | // reject fake tracks | |
765 | if(track->Pt() > 10000.) { | |
766 | ::Error("Exclude no physical tracks","pt>10000. GeV"); | |
767 | return NULL; | |
768 | } | |
769 | } | |
770 | else { | |
771 | isOK = track->RelateToVertexBxByBz(vertex, b, kVeryBig); | |
772 | } | |
773 | ||
774 | if(!isOK) return NULL; | |
775 | ||
776 | return track; | |
777 | } | |
778 | ||
55468faf | 779 | //_____________________________________________________________________________ |
780 | Bool_t AlidNdPtHelper::SelectEvent(const AliESDEvent* const esdEvent, AliESDtrackCuts* const esdTrackCuts) { | |
781 | // select events with at least | |
782 | // one reconstructed primary track in acceptance | |
783 | // pT>0.5 GeV/c, |eta|<0.8 for cross section studies | |
784 | ||
785 | if(!esdEvent) return kFALSE; | |
786 | if(!esdTrackCuts) return kFALSE; | |
787 | ||
788 | AliESDtrack *track=0; | |
789 | Int_t count = 0; | |
790 | for (Int_t iTrack = 0; iTrack < esdEvent->GetNumberOfTracks(); iTrack++) | |
791 | { | |
792 | track = esdEvent->GetTrack(iTrack); | |
793 | if(!track) continue; | |
794 | if(track->Charge()==0) continue; | |
795 | if(!esdTrackCuts->AcceptTrack(track)) continue; | |
796 | if(track->Pt() < 0.5) continue; | |
797 | if(TMath::Abs(track->Eta()) > 0.8) continue; | |
798 | ||
799 | count++; | |
800 | } | |
801 | ||
802 | if(count > 0) return kTRUE; | |
803 | else return kFALSE; | |
804 | ||
805 | return kFALSE; | |
806 | } | |
807 | ||
808 | //_____________________________________________________________________________ | |
809 | Bool_t AlidNdPtHelper::SelectMCEvent(AliMCEvent* const mcEvent) { | |
810 | // | |
811 | // select events with at least | |
812 | // one prompt (MC primary) track in acceptance | |
813 | // pT>0.5 GeV/c, |eta|<0.8 for cross section studies | |
814 | // | |
815 | ||
816 | if(!mcEvent) return kFALSE; | |
817 | AliStack* stack = mcEvent->Stack(); | |
818 | if(!stack) return kFALSE; | |
819 | ||
820 | Int_t count = 0; | |
821 | for (Int_t iMc = 0; iMc < stack->GetNtrack(); ++iMc) | |
822 | { | |
823 | TParticle* particle = stack->Particle(iMc); | |
824 | if (!particle) continue; | |
825 | ||
826 | // only charged particles | |
827 | if(!particle->GetPDG()) continue; | |
828 | Double_t charge = particle->GetPDG()->Charge()/3.; | |
829 | if(charge == 0) continue; | |
830 | ||
831 | // physical primary | |
832 | Bool_t prim = stack->IsPhysicalPrimary(iMc); | |
833 | if(!prim) continue; | |
834 | ||
835 | if(particle->Pt() < 0.5) continue; | |
836 | if(TMath::Abs(particle->Eta()) > 0.8) continue; | |
837 | ||
838 | count++; | |
839 | } | |
840 | ||
841 | if(count > 0) return kTRUE; | |
842 | else return kFALSE; | |
843 | ||
844 | return kFALSE; | |
845 | } | |
846 | ||
0aaa8b91 | 847 | //_____________________________________________________________________________ |
e9f7cb15 | 848 | Int_t AlidNdPtHelper::GetTPCMBTrackMult(const AliESDEvent *const esdEvent,const AlidNdPtEventCuts *const evtCuts, const AlidNdPtAcceptanceCuts *const accCuts,const AliESDtrackCuts *const trackCuts) |
0aaa8b91 | 849 | { |
850 | // | |
851 | // get MB event track multiplicity | |
852 | // | |
853 | if(!esdEvent) | |
854 | { | |
855 | ::Error("AlidNdPtHelper::GetTPCMBTrackMult()","esd event is NULL"); | |
856 | return 0; | |
857 | } | |
858 | ||
859 | if(!evtCuts || !accCuts || !trackCuts) | |
860 | { | |
861 | ::Error("AlidNdPtHelper::GetTPCMBTrackMult()","cuts not available"); | |
862 | return 0; | |
863 | } | |
864 | ||
865 | // | |
866 | Double_t pos[3]={evtCuts->GetMeanXv(),evtCuts->GetMeanYv(),evtCuts->GetMeanZv()}; | |
867 | Double_t err[3]={evtCuts->GetSigmaMeanXv(),evtCuts->GetSigmaMeanYv(),evtCuts->GetSigmaMeanZv()}; | |
868 | AliESDVertex vtx0(pos,err); | |
869 | ||
870 | // | |
871 | Float_t maxDCAr = accCuts->GetMaxDCAr(); | |
872 | Float_t maxDCAz = accCuts->GetMaxDCAz(); | |
873 | Float_t minTPCClust = trackCuts->GetMinNClusterTPC(); | |
874 | // | |
875 | Int_t ntracks = esdEvent->GetNumberOfTracks(); | |
876 | Double_t dca[2],cov[3]; | |
877 | Int_t mult=0; | |
878 | for (Int_t i=0;i <ntracks; i++){ | |
879 | AliESDtrack *t = esdEvent->GetTrack(i); | |
880 | if (!t) continue; | |
881 | if (t->Charge() == 0) continue; | |
882 | if (!t->GetTPCInnerParam()) continue; | |
883 | if (t->GetTPCNcls()<minTPCClust) continue; | |
884 | // | |
774986ef | 885 | Double_t x[3]; t->GetXYZ(x); |
886 | Double_t b[3]; AliTracker::GetBxByBz(x,b); | |
887 | const Double_t kMaxStep = 1; //max step over the material | |
888 | ||
0aaa8b91 | 889 | AliExternalTrackParam *tpcTrack = new AliExternalTrackParam(*(t->GetTPCInnerParam())); |
b4cdc39d | 890 | if(!tpcTrack) return 0; |
891 | ||
774986ef | 892 | if (!tpcTrack->PropagateToDCABxByBz(&vtx0,b,kMaxStep,dca,cov)) |
0aaa8b91 | 893 | { |
894 | if(tpcTrack) delete tpcTrack; | |
895 | continue; | |
896 | } | |
897 | // | |
898 | if (TMath::Abs(dca[0])>maxDCAr || TMath::Abs(dca[1])>maxDCAz) { | |
899 | if(tpcTrack) delete tpcTrack; | |
900 | continue; | |
901 | } | |
902 | ||
903 | mult++; | |
904 | ||
905 | if(tpcTrack) delete tpcTrack; | |
906 | } | |
907 | ||
908 | return mult; | |
909 | } | |
910 | ||
911 | //_____________________________________________________________________________ | |
e9f7cb15 | 912 | Int_t AlidNdPtHelper::GetTPCMBPrimTrackMult(const AliESDEvent *const esdEvent, AliStack *const stack, const AlidNdPtEventCuts *const evtCuts, const AlidNdPtAcceptanceCuts *const accCuts, const AliESDtrackCuts *const trackCuts) |
0aaa8b91 | 913 | { |
914 | // | |
915 | // get MB primary event track multiplicity | |
916 | // | |
917 | if(!esdEvent) | |
918 | { | |
919 | ::Error("AlidNdPtHelper::GetTPCMBPrimTrackMult()","esd event is NULL"); | |
920 | return 0; | |
921 | } | |
922 | ||
923 | if(!stack) | |
924 | { | |
925 | ::Error("AlidNdPtHelper::GetTPCMBPrimTrackMult()","esd event is NULL"); | |
926 | return 0; | |
927 | } | |
928 | ||
929 | if(!evtCuts || !accCuts || !trackCuts) | |
930 | { | |
931 | ::Error("AlidNdPtHelper::GetTPCMBPrimTrackMult()","cuts not available"); | |
932 | return 0; | |
933 | } | |
934 | ||
935 | // | |
936 | Double_t pos[3]={evtCuts->GetMeanXv(),evtCuts->GetMeanYv(),evtCuts->GetMeanZv()}; | |
937 | Double_t err[3]={evtCuts->GetSigmaMeanXv(),evtCuts->GetSigmaMeanYv(),evtCuts->GetSigmaMeanZv()}; | |
938 | AliESDVertex vtx0(pos,err); | |
939 | ||
940 | // | |
941 | Float_t maxDCAr = accCuts->GetMaxDCAr(); | |
942 | Float_t maxDCAz = accCuts->GetMaxDCAz(); | |
943 | Float_t minTPCClust = trackCuts->GetMinNClusterTPC(); | |
944 | ||
945 | // | |
946 | Int_t ntracks = esdEvent->GetNumberOfTracks(); | |
947 | Double_t dca[2],cov[3]; | |
948 | Int_t mult=0; | |
949 | for (Int_t i=0;i <ntracks; i++){ | |
950 | AliESDtrack *t = esdEvent->GetTrack(i); | |
951 | if (!t) continue; | |
952 | if (t->Charge() == 0) continue; | |
953 | if (!t->GetTPCInnerParam()) continue; | |
954 | if (t->GetTPCNcls()<minTPCClust) continue; | |
955 | // | |
774986ef | 956 | Double_t x[3]; t->GetXYZ(x); |
957 | Double_t b[3]; AliTracker::GetBxByBz(x,b); | |
958 | const Double_t kMaxStep = 1; //max step over the material | |
959 | ||
0aaa8b91 | 960 | AliExternalTrackParam *tpcTrack = new AliExternalTrackParam(*(t->GetTPCInnerParam())); |
b4cdc39d | 961 | if(!tpcTrack) return 0; |
962 | ||
774986ef | 963 | if (!tpcTrack->PropagateToDCABxByBz(&vtx0,b,kMaxStep,dca,cov)) |
0aaa8b91 | 964 | { |
965 | if(tpcTrack) delete tpcTrack; | |
966 | continue; | |
967 | } | |
968 | // | |
969 | if (TMath::Abs(dca[0])>maxDCAr || TMath::Abs(dca[1])>maxDCAz) { | |
970 | if(tpcTrack) delete tpcTrack; | |
971 | continue; | |
972 | } | |
973 | ||
974 | Int_t label = TMath::Abs(t->GetLabel()); | |
975 | TParticle *part = stack->Particle(label); | |
976 | if(!part) { | |
977 | if(tpcTrack) delete tpcTrack; | |
978 | continue; | |
979 | } | |
980 | if(!stack->IsPhysicalPrimary(label)) | |
981 | { | |
982 | if(tpcTrack) delete tpcTrack; | |
983 | continue; | |
984 | } | |
985 | ||
986 | mult++; | |
987 | ||
988 | if(tpcTrack) delete tpcTrack; | |
989 | } | |
990 | ||
991 | return mult; | |
992 | } | |
993 | ||
994 | ||
791aaf54 | 995 | //_____________________________________________________________________________ |
996 | Double_t AlidNdPtHelper::GetStrangenessCorrFactor(const Double_t pt) | |
997 | { | |
998 | // data driven correction factor for secondaries | |
999 | // underestimated secondaries with strangeness in Pythia (A. Dainese) | |
0aaa8b91 | 1000 | |
791aaf54 | 1001 | // |
1002 | // pt=0.17; fact=1 | |
1003 | // pt=0.4; fact=1.07 | |
1004 | // pt=0.6; fact=1.25 | |
1005 | // pt>=1.2; fact=1.5 | |
1006 | // | |
0aaa8b91 | 1007 | |
791aaf54 | 1008 | if (pt <= 0.17) return 1.0; |
1009 | if (pt <= 0.4) return GetLinearInterpolationValue(0.17,1.0,0.4,1.07, pt); | |
1010 | if (pt <= 0.6) return GetLinearInterpolationValue(0.4,1.07,0.6,1.25, pt); | |
1011 | if (pt <= 1.2) return GetLinearInterpolationValue(0.6,1.25,1.2,1.5, pt); | |
1012 | return 1.5; | |
1013 | ||
1014 | } | |
1015 | ||
d4640855 | 1016 | //_____________________________________________________________________________ |
1017 | Double_t AlidNdPtHelper::GetStrangenessCorrFactorPbPb(const Double_t pt) | |
1018 | { | |
1019 | // data driven correction factor for secondaries (PbPb) | |
1020 | ||
1021 | if (pt <= 0.25) return 1.0; | |
1022 | if (pt <= 0.5) return GetLinearInterpolationValue(0.25,1.0,0.5,1.4, pt); | |
1023 | if (pt <= 1.0) return GetLinearInterpolationValue(0.5,1.4,1.0,1.47, pt); | |
1024 | if (pt <= 2.0) return GetLinearInterpolationValue(1.0,1.47,2.0,1.56, pt); | |
1025 | if (pt <= 5.0) return GetLinearInterpolationValue(2.0,1.56,5.0,1.67, pt); | |
1026 | return 1.67; | |
1027 | ||
1028 | } | |
1029 | ||
791aaf54 | 1030 | //___________________________________________________________________________ |
e9f7cb15 | 1031 | Double_t AlidNdPtHelper::GetLinearInterpolationValue(const Double_t x1,const Double_t y1,const Double_t x2,const Double_t y2, const Double_t pt) |
791aaf54 | 1032 | { |
1033 | // | |
1034 | // linear interpolation | |
1035 | // | |
1036 | return ((y2-y1)/(x2-x1))*pt+(y2-(((y2-y1)/(x2-x1))*x2)); | |
1037 | } | |
0aaa8b91 | 1038 | |
1039 | //_____________________________________________________________________________ | |
f2dec884 | 1040 | Int_t AlidNdPtHelper::GetMCTrueTrackMult(AliMCEvent *const mcEvent, AlidNdPtEventCuts *const evtCuts, AlidNdPtAcceptanceCuts *const accCuts) |
0aaa8b91 | 1041 | { |
1042 | // | |
1043 | // calculate mc event true track multiplicity | |
1044 | // | |
1045 | if(!mcEvent) return 0; | |
1046 | ||
1047 | AliStack* stack = 0; | |
1048 | Int_t mult = 0; | |
1049 | ||
1050 | // MC particle stack | |
1051 | stack = mcEvent->Stack(); | |
1052 | if (!stack) return 0; | |
1053 | ||
695facdf | 1054 | // |
1055 | //printf("minZv %f, maxZv %f \n", evtCuts->GetMinZv(), evtCuts->GetMaxZv()); | |
1056 | // | |
1057 | ||
0aaa8b91 | 1058 | Bool_t isEventOK = evtCuts->AcceptMCEvent(mcEvent); |
1059 | if(!isEventOK) return 0; | |
1060 | ||
1061 | Int_t nPart = stack->GetNtrack(); | |
1062 | for (Int_t iMc = 0; iMc < nPart; ++iMc) | |
1063 | { | |
1064 | TParticle* particle = stack->Particle(iMc); | |
1065 | if (!particle) | |
1066 | continue; | |
1067 | ||
1068 | // only charged particles | |
09abaebb | 1069 | if(!particle->GetPDG()) continue; |
0aaa8b91 | 1070 | Double_t charge = particle->GetPDG()->Charge()/3.; |
f2dec884 | 1071 | if (TMath::Abs(charge) < 0.001) |
0aaa8b91 | 1072 | continue; |
1073 | ||
1074 | // physical primary | |
1075 | Bool_t prim = stack->IsPhysicalPrimary(iMc); | |
1076 | if(!prim) continue; | |
1077 | ||
774986ef | 1078 | // checked accepted without pt cut |
1079 | //if(accCuts->AcceptTrack(particle)) | |
1080 | if( particle->Eta() > accCuts->GetMinEta() && particle->Eta() < accCuts->GetMaxEta() ) | |
0aaa8b91 | 1081 | { |
1082 | mult++; | |
1083 | } | |
1084 | } | |
1085 | ||
1086 | return mult; | |
1087 | } | |
1088 | ||
1089 | //_______________________________________________________________________ | |
f2dec884 | 1090 | void AlidNdPtHelper::PrintMCInfo(AliStack *const pStack,Int_t label) |
0aaa8b91 | 1091 | { |
1092 | // print information about particles in the stack | |
1093 | ||
1094 | if(!pStack)return; | |
1095 | label = TMath::Abs(label); | |
1096 | TParticle *part = pStack->Particle(label); | |
1097 | Printf("########################"); | |
1098 | Printf("%s:%d %d UniqueID %d PDG %d P %3.3f",(char*)__FILE__,__LINE__,label,part->GetUniqueID(),part->GetPdgCode(),part->P()); | |
1099 | part->Print(); | |
1100 | TParticle* mother = part; | |
1101 | Int_t imo = part->GetFirstMother(); | |
1102 | Int_t nprim = pStack->GetNprimary(); | |
1103 | ||
1104 | while((imo >= nprim)) { | |
1105 | mother = pStack->Particle(imo); | |
1106 | Printf("Mother %s:%d Label %d UniqueID %d PDG %d P %3.3f",(char*)__FILE__,__LINE__,imo,mother->GetUniqueID(),mother->GetPdgCode(),mother->P()); | |
1107 | mother->Print(); | |
1108 | imo = mother->GetFirstMother(); | |
1109 | } | |
1110 | ||
1111 | Printf("########################"); | |
1112 | } | |
1113 | ||
1114 | ||
1115 | //_____________________________________________________________________________ | |
f2dec884 | 1116 | TH1* AlidNdPtHelper::GetContCorrHisto(TH1 *const hist) |
0aaa8b91 | 1117 | { |
1118 | // | |
1119 | // get contamination histogram | |
1120 | // | |
1121 | if(!hist) return 0; | |
1122 | ||
1123 | Int_t nbins = hist->GetNbinsX(); | |
f2dec884 | 1124 | TH1 *hCont = (TH1D *)hist->Clone(); |
0aaa8b91 | 1125 | |
1126 | for(Int_t i=0; i<=nbins+1; i++) { | |
1127 | Double_t binContent = hist->GetBinContent(i); | |
1128 | Double_t binError = hist->GetBinError(i); | |
1129 | ||
f2dec884 | 1130 | hCont->SetBinContent(i,1.-binContent); |
1131 | hCont->SetBinError(i,binError); | |
0aaa8b91 | 1132 | } |
1133 | ||
f2dec884 | 1134 | return hCont; |
0aaa8b91 | 1135 | } |
1136 | ||
1137 | ||
1138 | //_____________________________________________________________________________ | |
f2dec884 | 1139 | TH1* AlidNdPtHelper::ScaleByBinWidth(TH1 *const hist) |
0aaa8b91 | 1140 | { |
1141 | // | |
1142 | // scale by bin width | |
1143 | // | |
1144 | if(!hist) return 0; | |
1145 | ||
f2dec884 | 1146 | TH1 *hScale = (TH1D *)hist->Clone(); |
1147 | hScale->Scale(1.,"width"); | |
0aaa8b91 | 1148 | |
f2dec884 | 1149 | return hScale; |
0aaa8b91 | 1150 | } |
1151 | ||
1152 | //_____________________________________________________________________________ | |
e9f7cb15 | 1153 | TH1* AlidNdPtHelper::CalcRelativeDifference(const TH1 *const hist1, const TH1 *const hist2) |
0aaa8b91 | 1154 | { |
1155 | // | |
1156 | // calculate rel. difference | |
1157 | // | |
1158 | ||
1159 | if(!hist1) return 0; | |
1160 | if(!hist2) return 0; | |
1161 | ||
f2dec884 | 1162 | TH1 *h1Clone = (TH1D *)hist1->Clone(); |
1163 | h1Clone->Sumw2(); | |
0aaa8b91 | 1164 | |
1165 | // (rec-mc)/mc | |
f2dec884 | 1166 | h1Clone->Add(hist2,-1); |
1167 | h1Clone->Divide(hist2); | |
0aaa8b91 | 1168 | |
f2dec884 | 1169 | return h1Clone; |
0aaa8b91 | 1170 | } |
1171 | ||
1172 | //_____________________________________________________________________________ | |
e9f7cb15 | 1173 | TH1* AlidNdPtHelper::CalcRelativeDifferenceFun(const TH1 *const hist1, TF1 *const fun) |
0aaa8b91 | 1174 | { |
1175 | // | |
08a80bfe | 1176 | // calculate rel. difference |
0aaa8b91 | 1177 | // between histogram and function |
1178 | // | |
1179 | if(!hist1) return 0; | |
1180 | if(!fun) return 0; | |
1181 | ||
f2dec884 | 1182 | TH1 *h1Clone = (TH1D *)hist1->Clone(); |
1183 | h1Clone->Sumw2(); | |
0aaa8b91 | 1184 | |
1185 | // | |
f2dec884 | 1186 | h1Clone->Add(fun,-1); |
1187 | h1Clone->Divide(hist1); | |
0aaa8b91 | 1188 | |
f2dec884 | 1189 | return h1Clone; |
0aaa8b91 | 1190 | } |
1191 | ||
1192 | //_____________________________________________________________________________ | |
e9f7cb15 | 1193 | TH1* AlidNdPtHelper::NormalizeToEvent(const TH2 *const hist1, const TH1 *const hist2) |
0aaa8b91 | 1194 | { |
1195 | // normalise to event for a given multiplicity bin | |
1196 | // return pt histogram | |
1197 | ||
1198 | if(!hist1) return 0; | |
1199 | if(!hist2) return 0; | |
1200 | char name[256]; | |
1201 | ||
1202 | Int_t nbinsX = hist1->GetNbinsX(); | |
1203 | //Int_t nbinsY = hist1->GetNbinsY(); | |
1204 | ||
f2dec884 | 1205 | TH1D *histNorm = 0; |
0aaa8b91 | 1206 | for(Int_t i=0; i<=nbinsX+1; i++) { |
b4cdc39d | 1207 | snprintf(name,256,"mom_%d",i); |
0aaa8b91 | 1208 | TH1D *hist = (TH1D*)hist1->ProjectionY(name,i+1,i+1); |
1209 | ||
b4cdc39d | 1210 | snprintf(name,256,"mom_norm"); |
0aaa8b91 | 1211 | if(i==0) { |
f2dec884 | 1212 | histNorm = (TH1D *)hist->Clone(name); |
1213 | histNorm->Reset(); | |
0aaa8b91 | 1214 | } |
1215 | ||
1216 | Double_t nbEvents = hist2->GetBinContent(i); | |
1217 | if(!nbEvents) { nbEvents = 1.; }; | |
1218 | ||
1219 | hist->Scale(1./nbEvents); | |
f2dec884 | 1220 | histNorm->Add(hist); |
0aaa8b91 | 1221 | } |
1222 | ||
f2dec884 | 1223 | return histNorm; |
0aaa8b91 | 1224 | } |
1225 | ||
1226 | //_____________________________________________________________________________ | |
e9f7cb15 | 1227 | //THnSparse* AlidNdPtHelper::GenerateCorrMatrix(THnSparse *const hist1, const THnSparse *const hist2, char *const name) { |
1228 | THnSparse* AlidNdPtHelper::GenerateCorrMatrix(THnSparse *const hist1, const THnSparse *const hist2, const char *name) { | |
0aaa8b91 | 1229 | // generate correction matrix |
1230 | if(!hist1 || !hist2) return 0; | |
1231 | ||
1232 | THnSparse *h =(THnSparse*)hist1->Clone(name);; | |
1233 | h->Divide(hist1,hist2,1,1,"B"); | |
1234 | ||
1235 | return h; | |
1236 | } | |
1237 | ||
1238 | //_____________________________________________________________________________ | |
a9b12ce1 | 1239 | //TH2* AlidNdPtHelper::GenerateCorrMatrix(TH2 *const hist1, TH2 *const hist2, char *const name) { |
1240 | TH2* AlidNdPtHelper::GenerateCorrMatrix(TH2 *const hist1, TH2 *const hist2, const char *name) { | |
0aaa8b91 | 1241 | // generate correction matrix |
1242 | if(!hist1 || !hist2) return 0; | |
1243 | ||
1244 | TH2D *h =(TH2D*)hist1->Clone(name);; | |
1245 | h->Divide(hist1,hist2,1,1,"B"); | |
1246 | ||
1247 | return h; | |
1248 | } | |
1249 | ||
1250 | //_____________________________________________________________________________ | |
a9b12ce1 | 1251 | //TH1* AlidNdPtHelper::GenerateCorrMatrix(TH1 *const hist1, TH1 *const hist2, char *const name) { |
1252 | TH1* AlidNdPtHelper::GenerateCorrMatrix(TH1 *const hist1, TH1 *const hist2, const char* name) { | |
0aaa8b91 | 1253 | // generate correction matrix |
1254 | if(!hist1 || !hist2) return 0; | |
1255 | ||
1256 | TH1D *h =(TH1D*)hist1->Clone(name);; | |
1257 | h->Divide(hist1,hist2,1,1,"B"); | |
1258 | ||
1259 | return h; | |
1260 | } | |
1261 | ||
1262 | //_____________________________________________________________________________ | |
a9b12ce1 | 1263 | //THnSparse* AlidNdPtHelper::GenerateContCorrMatrix(THnSparse *const hist1, THnSparse *const hist2, char *const name) { |
e9f7cb15 | 1264 | THnSparse* AlidNdPtHelper::GenerateContCorrMatrix(THnSparse *const hist1, const THnSparse *const hist2, const char* name) { |
0aaa8b91 | 1265 | // generate contamination correction matrix |
1266 | if(!hist1 || !hist2) return 0; | |
1267 | ||
1268 | THnSparse *hist = GenerateCorrMatrix(hist1, hist2, name); | |
1269 | if(!hist) return 0; | |
1270 | ||
1271 | // only for non ZERO bins!!!! | |
1272 | ||
1273 | Int_t* coord = new Int_t[hist->GetNdimensions()]; | |
1274 | memset(coord, 0, sizeof(Int_t) * hist->GetNdimensions()); | |
1275 | ||
1276 | for (Long64_t i = 0; i < hist->GetNbins(); ++i) { | |
1277 | Double_t v = hist->GetBinContent(i, coord); | |
1278 | hist->SetBinContent(coord, 1.0-v); | |
1279 | //printf("v %f, hist->GetBinContent(i, coord) %f \n",v,hist->GetBinContent(i, coord)); | |
1280 | Double_t err = hist->GetBinError(coord); | |
1281 | hist->SetBinError(coord, err); | |
1282 | } | |
1283 | ||
1284 | delete [] coord; | |
1285 | ||
1286 | return hist; | |
1287 | } | |
1288 | ||
1289 | //_____________________________________________________________________________ | |
a9b12ce1 | 1290 | //TH2* AlidNdPtHelper::GenerateContCorrMatrix(TH2 *const hist1, TH2 *const hist2, char *const name) { |
1291 | TH2* AlidNdPtHelper::GenerateContCorrMatrix(TH2 *const hist1, TH2 *const hist2, const char* name) { | |
0aaa8b91 | 1292 | // generate contamination correction matrix |
1293 | if(!hist1 || !hist2) return 0; | |
1294 | ||
1295 | TH2 *hist = GenerateCorrMatrix(hist1, hist2, name); | |
1296 | if(!hist) return 0; | |
1297 | ||
1298 | Int_t nBinsX = hist->GetNbinsX(); | |
1299 | Int_t nBinsY = hist->GetNbinsY(); | |
1300 | ||
1301 | for (Int_t i = 0; i < nBinsX+1; i++) { | |
1302 | for (Int_t j = 0; j < nBinsY+1; j++) { | |
1303 | Double_t cont = hist->GetBinContent(i,j); | |
1304 | hist->SetBinContent(i,j,1.-cont); | |
1305 | Double_t err = hist->GetBinError(i,j); | |
1306 | hist->SetBinError(i,j,err); | |
1307 | } | |
1308 | } | |
1309 | ||
1310 | return hist; | |
1311 | } | |
1312 | ||
1313 | //_____________________________________________________________________________ | |
a9b12ce1 | 1314 | //TH1* AlidNdPtHelper::GenerateContCorrMatrix(TH1 *const hist1, TH1 *const hist2, char *const name) { |
1315 | TH1* AlidNdPtHelper::GenerateContCorrMatrix(TH1 *const hist1, TH1 *const hist2, const char* name) { | |
0aaa8b91 | 1316 | // generate contamination correction matrix |
1317 | if(!hist1 || !hist2) return 0; | |
1318 | ||
1319 | TH1 *hist = GenerateCorrMatrix(hist1, hist2, name); | |
1320 | if(!hist) return 0; | |
1321 | ||
1322 | Int_t nBinsX = hist->GetNbinsX(); | |
1323 | ||
1324 | for (Int_t i = 0; i < nBinsX+1; i++) { | |
1325 | Double_t cont = hist->GetBinContent(i); | |
1326 | hist->SetBinContent(i,1.-cont); | |
1327 | Double_t err = hist->GetBinError(i); | |
1328 | hist->SetBinError(i,err); | |
1329 | } | |
1330 | ||
1331 | return hist; | |
1332 | } | |
1333 | ||
1334 | //_____________________________________________________________________________ | |
e9f7cb15 | 1335 | const AliESDVertex* AlidNdPtHelper::GetTPCVertexZ(const AliESDEvent* const esdEvent, const AlidNdPtEventCuts *const evtCuts, const AlidNdPtAcceptanceCuts *const accCuts, const AliESDtrackCuts *const trackCuts, Float_t fraction, Int_t ntracksMin){ |
0aaa8b91 | 1336 | // |
1337 | // TPC Z vertexer | |
1338 | // | |
bad4ba69 | 1339 | if(!esdEvent) |
1340 | { | |
1341 | ::Error("AlidNdPtHelper::GetTPCVertexZ()","cuts not available"); | |
1342 | return NULL; | |
1343 | } | |
1344 | ||
1345 | if(!evtCuts || !accCuts || !trackCuts) | |
1346 | { | |
1347 | ::Error("AlidNdPtHelper::GetTPCVertexZ()","cuts not available"); | |
1348 | return NULL; | |
1349 | } | |
1350 | ||
1351 | Double_t vtxpos[3]={evtCuts->GetMeanXv(),evtCuts->GetMeanYv(),evtCuts->GetMeanZv()}; | |
1352 | Double_t vtxsigma[3]={evtCuts->GetSigmaMeanXv(),evtCuts->GetSigmaMeanYv(),evtCuts->GetSigmaMeanZv()}; | |
0aaa8b91 | 1353 | AliESDVertex vtx0(vtxpos,vtxsigma); |
bad4ba69 | 1354 | |
1355 | Double_t maxDCAr = accCuts->GetMaxDCAr(); | |
1356 | Double_t maxDCAz = accCuts->GetMaxDCAz(); | |
1357 | Int_t minTPCClust = trackCuts->GetMinNClusterTPC(); | |
1358 | ||
0aaa8b91 | 1359 | // |
1360 | Int_t ntracks = esdEvent->GetNumberOfTracks(); | |
1361 | TVectorD ztrack(ntracks); | |
0aaa8b91 | 1362 | Double_t dca[2],cov[3]; |
1363 | Int_t counter=0; | |
1364 | for (Int_t i=0;i <ntracks; i++){ | |
1365 | AliESDtrack *t = esdEvent->GetTrack(i); | |
1366 | if (!t) continue; | |
1367 | if (!t->GetTPCInnerParam()) continue; | |
bad4ba69 | 1368 | if (t->GetTPCNcls()<minTPCClust) continue; |
0aaa8b91 | 1369 | // |
774986ef | 1370 | |
1371 | Double_t x[3]; t->GetXYZ(x); | |
1372 | Double_t b[3]; AliTracker::GetBxByBz(x,b); | |
1373 | const Double_t kMaxStep = 1; //max step over the material | |
1374 | ||
0aaa8b91 | 1375 | AliExternalTrackParam *tpcTrack = new AliExternalTrackParam(*(t->GetTPCInnerParam())); |
b4cdc39d | 1376 | if(!tpcTrack) return 0; |
774986ef | 1377 | if (!tpcTrack->PropagateToDCABxByBz(&vtx0,b,kMaxStep,dca,cov)) continue; |
0aaa8b91 | 1378 | |
1379 | // | |
bad4ba69 | 1380 | if (TMath::Abs(dca[0])>maxDCAr) continue; |
1381 | //if (TMath::Sqrt(cov[0])>sigmaXYcut) continue; | |
1382 | if (TMath::Abs(tpcTrack->GetZ())>maxDCAz) continue; | |
0aaa8b91 | 1383 | |
0aaa8b91 | 1384 | ztrack[counter]=tpcTrack->GetZ(); |
1385 | counter++; | |
1386 | ||
1387 | if(tpcTrack) delete tpcTrack; | |
1388 | } | |
bad4ba69 | 1389 | |
0aaa8b91 | 1390 | // |
1391 | // Find LTM z position | |
1392 | // | |
1393 | Double_t mean=0, sigma=0; | |
1394 | if (counter<ntracksMin) return 0; | |
1395 | // | |
1396 | Int_t nused = TMath::Nint(counter*fraction); | |
1397 | if (nused==counter) nused=counter-1; | |
1398 | if (nused>1){ | |
1399 | AliMathBase::EvaluateUni(counter, ztrack.GetMatrixArray(), mean,sigma, TMath::Nint(counter*fraction)); | |
1400 | sigma/=TMath::Sqrt(nused); | |
1401 | }else{ | |
1402 | mean = TMath::Mean(counter, ztrack.GetMatrixArray()); | |
1403 | sigma = TMath::RMS(counter, ztrack.GetMatrixArray()); | |
1404 | sigma/=TMath::Sqrt(counter-1); | |
1405 | } | |
1406 | vtxpos[2]=mean; | |
1407 | vtxsigma[2]=sigma; | |
1408 | const AliESDVertex* vertex = new AliESDVertex(vtxpos, vtxsigma); | |
1409 | return vertex; | |
1410 | } | |
1411 | ||
1412 | //_____________________________________________________________________________ | |
e9f7cb15 | 1413 | Int_t AlidNdPtHelper::GetSPDMBTrackMult(const AliESDEvent* const esdEvent, Float_t deltaThetaCut, Float_t deltaPhiCut) |
0aaa8b91 | 1414 | { |
1415 | // | |
1416 | // SPD track multiplicity | |
1417 | // | |
1418 | ||
1419 | // get tracklets | |
1420 | const AliMultiplicity* mult = esdEvent->GetMultiplicity(); | |
1421 | if (!mult) | |
1422 | return 0; | |
1423 | ||
1424 | // get multiplicity from SPD tracklets | |
1425 | Int_t inputCount = 0; | |
1426 | for (Int_t i=0; i<mult->GetNumberOfTracklets(); ++i) | |
1427 | { | |
1428 | //printf("%d %f %f %f\n", i, mult->GetTheta(i), mult->GetPhi(i), mult->GetDeltaPhi(i)); | |
1429 | ||
1430 | Float_t phi = mult->GetPhi(i); | |
1431 | if (phi < 0) | |
1432 | phi += TMath::Pi() * 2; | |
1433 | Float_t deltaPhi = mult->GetDeltaPhi(i); | |
1434 | Float_t deltaTheta = mult->GetDeltaTheta(i); | |
1435 | ||
1436 | if (TMath::Abs(deltaPhi) > 1) | |
1437 | printf("WARNING: Very high Delta Phi: %d %f %f %f\n", i, mult->GetTheta(i), mult->GetPhi(i), deltaPhi); | |
1438 | ||
1439 | if (deltaThetaCut > 0. && TMath::Abs(deltaTheta) > deltaThetaCut) | |
1440 | continue; | |
1441 | ||
1442 | if (deltaPhiCut > 0. && TMath::Abs(deltaPhi) > deltaPhiCut) | |
1443 | continue; | |
1444 | ||
1445 | ++inputCount; | |
1446 | } | |
1447 | ||
1448 | return inputCount; | |
1449 | } | |
1450 | ||
1451 | //_____________________________________________________________________________ | |
e9f7cb15 | 1452 | Int_t AlidNdPtHelper::GetSPDMBPrimTrackMult(const AliESDEvent* const esdEvent, AliStack* const stack, Float_t deltaThetaCut, Float_t deltaPhiCut) |
0aaa8b91 | 1453 | { |
1454 | // | |
1455 | // SPD track multiplicity | |
1456 | // | |
1457 | ||
1458 | // get tracklets | |
1459 | const AliMultiplicity* mult = esdEvent->GetMultiplicity(); | |
1460 | if (!mult) | |
1461 | return 0; | |
1462 | ||
1463 | // get multiplicity from SPD tracklets | |
1464 | Int_t inputCount = 0; | |
1465 | for (Int_t i=0; i<mult->GetNumberOfTracklets(); ++i) | |
1466 | { | |
1467 | //printf("%d %f %f %f\n", i, mult->GetTheta(i), mult->GetPhi(i), mult->GetDeltaPhi(i)); | |
1468 | ||
1469 | Float_t phi = mult->GetPhi(i); | |
1470 | if (phi < 0) | |
1471 | phi += TMath::Pi() * 2; | |
1472 | Float_t deltaPhi = mult->GetDeltaPhi(i); | |
1473 | Float_t deltaTheta = mult->GetDeltaTheta(i); | |
1474 | ||
1475 | if (TMath::Abs(deltaPhi) > 1) | |
1476 | printf("WARNING: Very high Delta Phi: %d %f %f %f\n", i, mult->GetTheta(i), mult->GetPhi(i), deltaPhi); | |
1477 | ||
1478 | if (deltaThetaCut > 0. && TMath::Abs(deltaTheta) > deltaThetaCut) | |
1479 | continue; | |
1480 | ||
1481 | if (deltaPhiCut > 0. && TMath::Abs(deltaPhi) > deltaPhiCut) | |
1482 | continue; | |
1483 | ||
1484 | ||
1485 | if (mult->GetLabel(i, 0) < 0 || mult->GetLabel(i, 0) != mult->GetLabel(i, 1) || | |
1486 | !stack->IsPhysicalPrimary(mult->GetLabel(i, 0))) | |
1487 | continue; | |
1488 | ||
1489 | ||
1490 | ++inputCount; | |
1491 | } | |
1492 | ||
1493 | return inputCount; | |
1494 | } | |
fc98fbb5 | 1495 | //_____________________________________________________________________________ |
1496 | ||
1497 | THnSparse* AlidNdPtHelper::RebinTHnSparse(const THnSparse* hist1, THnSparse* hist2, const Char_t* newname, Option_t* option) | |
1498 | { | |
1499 | THnSparse* htemp = 0; | |
1500 | const THnSparse* hist = 0; | |
1501 | TString opt = option; | |
1502 | opt.ToLower(); | |
1503 | Bool_t calcErrors = kFALSE; | |
1504 | Bool_t useRange = kFALSE; | |
1505 | Bool_t overwrite = kFALSE; | |
1506 | if (opt.Contains("e")) { calcErrors = kTRUE; } // calcluate correct errors (not implemented) | |
1507 | if (opt.Contains("r")) { useRange = kTRUE; } // use the axis range given in hist1 | |
1508 | if (opt.Contains("o")) { overwrite = kTRUE; } // overwrite hist2 instead of creating a new one | |
1509 | Int_t ndim = hist1->GetNdimensions(); | |
1510 | if (ndim != hist2->GetNdimensions()) { | |
1511 | printf("AlidNdPtHelper::RebinTHnSparse: ERROR: Histograms have different dimensions \n"); | |
1512 | return 0; | |
1513 | } | |
1514 | Int_t* dims = new Int_t[ndim]; | |
1515 | for (Int_t i = 0; i < ndim; i++) { dims[i] = i; } | |
1516 | if (useRange) { | |
1517 | htemp = hist1->Projection(ndim,dims,"e"); | |
1518 | hist = htemp; | |
1519 | } else { hist = hist1; } | |
1520 | //THnSparse* hnew = hist2->Projection(ndim,dims,"o"); | |
1521 | //hnew->SetName(newname); | |
1522 | THnSparse* hnew = 0; | |
1523 | if (overwrite) { | |
1524 | hnew = hist2; | |
1525 | } else { | |
1526 | hnew = (THnSparse*) hist2->Clone(newname); | |
1527 | } | |
1528 | for (Int_t i = 0; i < ndim; i++) { hnew->GetAxis(i)->SetRange(); } | |
1529 | hnew->SetTitle(hist1->GetTitle()); | |
1530 | hnew->Reset(); | |
1531 | hnew->Sumw2(); | |
1532 | Double_t content; | |
1533 | Double_t error; | |
1534 | Int_t* c = new Int_t[ndim]; | |
1535 | Double_t* x = new Double_t[ndim]; | |
1536 | Long64_t n = hist->GetNbins(); | |
1537 | for (Long64_t j = 0; j < n; j++) { | |
1538 | content = hist->GetBinContent(j,c); | |
1539 | error = hist->GetBinError(j); | |
1540 | for (Int_t i = 0; i < ndim; i++) { | |
1541 | x[i] = hist->GetAxis(i)->GetBinCenter(c[i]); | |
1542 | } | |
1543 | /* function IsInRange is protected, shit! | |
1544 | if (useRange) { | |
1545 | if (! hist1->IsInRange(c)) continue; | |
1546 | } | |
1547 | */ | |
1548 | if (calcErrors) { | |
1549 | // implementation to be done | |
1550 | } else { | |
1551 | hnew->Fill(x,content); | |
1552 | } | |
1553 | } | |
1554 | delete[] c; c=0; | |
1555 | delete[] x; x=0; | |
1556 | delete[] dims; dims=0; | |
1557 | if (htemp) { delete htemp; htemp = 0;} | |
1558 | return hnew; | |
1559 | } | |
0aaa8b91 | 1560 | |
1561 |