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Adding flexibility to submission macros
[u/mrichter/AliRoot.git] / PWG0 / dNdPt / AlidNdPtHelper.cxx
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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//____________________________________________________________________
49ClassImp(AlidNdPtHelper)
50
0aaa8b91 51//____________________________________________________________________
e9f7cb15 52const 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;
774986ef 73 if (analysisMode == kSPD || analysisMode == kTPCITS ||
74 analysisMode == kTPCSPDvtx || analysisMode == kTPCSPDvtxUpdate || analysisMode == kTPCITSHybrid)
0aaa8b91 75 {
76 vertex = aEsd->GetPrimaryVertexSPD();
77 if (debug)
78 Printf("AlidNdPtHelper::GetVertex: Returning SPD vertex");
79 }
695facdf 80 else if (analysisMode == kTPCTrackSPDvtx || analysisMode == kTPCTrackSPDvtxUpdate ||
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
118 Int_t count=0;
119 for (Int_t i=0;i <ntracks; i++) {
120 AliESDtrack *t = aEsd->GetTrack(i);
121 if (!t) continue;
122 if (t->Charge() == 0) continue;
123 if (!t->GetTPCInnerParam()) continue;
124 if (t->GetTPCNcls()<vertexer.GetMinClusters()) continue;
125 AliExternalTrackParam *tpcTrack = new AliExternalTrackParam(*(t->GetTPCInnerParam()));
126 if(tpcTrack) {
127 array.AddLast(tpcTrack);
128 id[count] = (UShort_t)t->GetID();
129 count++;
130 }
131 }
132 AliESDVertex *vTPC = vertexer.VertexForSelectedTracks(&array,id, kTRUE, kTRUE, bUseMeanVertex);
bad4ba69 133
134 // set recreated TPC vertex
0aaa8b91 135 aEsd->SetPrimaryVertexTPC(vTPC);
136
137 for (Int_t i=0; i<aEsd->GetNumberOfTracks(); i++) {
138 AliESDtrack *t = aEsd->GetTrack(i);
774986ef 139 if(!t) continue;
140
141 Double_t x[3]; t->GetXYZ(x);
142 Double_t b[3]; AliTracker::GetBxByBz(x,b);
143 t->RelateToVertexTPCBxByBz(vTPC, b, kVeryBig);
0aaa8b91 144 }
145
146 delete vTPC;
147 array.Delete();
148 delete [] id; id=NULL;
149
150 }
151 vertex = aEsd->GetPrimaryVertexTPC();
152 if (debug)
774986ef 153 Printf("AlidNdPtHelper::GetVertex: Returning vertex from tracks");
154 }
155 else
156 Printf("AlidNdPtHelper::GetVertex: ERROR: Invalid second argument %d", analysisMode);
0aaa8b91 157
158 if (!vertex) {
159 if (debug)
160 Printf("AlidNdPtHelper::GetVertex: No vertex found in ESD");
161 return 0;
162 }
163
164 if (debug)
165 {
166 Printf("AlidNdPtHelper::GetVertex: Returning valid vertex: %s", vertex->GetTitle());
167 vertex->Print();
168 }
169
170 if(initVertex) delete initVertex; initVertex=NULL;
171 return vertex;
172}
173
bad4ba69 174//____________________________________________________________________
791aaf54 175Bool_t AlidNdPtHelper::TestRecVertex(const AliESDVertex* vertex, const AliESDVertex* vertexSPD, AnalysisMode analysisMode, Bool_t debug)
bad4ba69 176{
177 // Checks if a vertex meets the needed quality criteria
178 if(!vertex) return kFALSE;
774986ef 179 if(!vertex->GetStatus()) return kFALSE;
bad4ba69 180
181 Float_t requiredZResolution = -1;
774986ef 182 if (analysisMode == kSPD || analysisMode == kTPCITS ||
791aaf54 183 analysisMode == kTPCSPDvtx || analysisMode == kTPCSPDvtxUpdate || analysisMode == kTPCITSHybrid ||
184 analysisMode == kTPCTrackSPDvtx || analysisMode == kTPCTrackSPDvtxUpdate || analysisMode == kTPCITSHybridTrackSPDvtx || analysisMode == kTPCITSHybridTrackSPDvtxDCArPt
695facdf 185 || analysisMode == kITSStandAloneTrackSPDvtx || analysisMode == kITSStandAloneTPCTrackSPDvtx)
bad4ba69 186 {
774986ef 187 requiredZResolution = 1000;
bad4ba69 188 }
847e74b2 189 else if (analysisMode == kTPC)
bad4ba69 190 requiredZResolution = 10.;
191
774986ef 192 // check resolution
193 Double_t zRes = vertex->GetZRes();
194
195 if (zRes > requiredZResolution) {
196 if (debug)
197 Printf("AlidNdPtHelper::TestVertex: Resolution too poor %f (required: %f", zRes, requiredZResolution);
198 return kFALSE;
199 }
791aaf54 200
201 // always check for SPD vertex
202 if(!vertexSPD) return kFALSE;
203 if(!vertexSPD->GetStatus()) return kFALSE;
204 if (vertexSPD->IsFromVertexerZ())
774986ef 205 {
791aaf54 206 if (vertexSPD->GetDispersion() > 0.02)
774986ef 207 {
208 if (debug)
209 Printf("AliPWG0Helper::TestVertex: Delta Phi too large in Vertexer Z: %f (required: %f", vertex->GetDispersion(), 0.02);
210 return kFALSE;
211 }
212 }
213
214 /*
bad4ba69 215 // check Ncontributors
216 if (vertex->GetNContributors() <= 0) {
217 if (debug){
218 Printf("AlidNdPtHelper::GetVertex: NContributors() <= 0: %d",vertex->GetNContributors());
219 Printf("AlidNdPtHelper::GetVertex: NIndices(): %d",vertex->GetNIndices());
220 vertex->Print();
221 }
222 return kFALSE;
223 }
774986ef 224 */
bad4ba69 225
226 return kTRUE;
227}
228
791aaf54 229//____________________________________________________________________
e9f7cb15 230Bool_t AlidNdPtHelper::IsGoodImpPar(const AliESDtrack *const track)
791aaf54 231{
232//
233// check whether particle has good DCAr(Pt) impact
234// parameter. Only for TPC+ITS tracks (7*sigma cut)
235// Origin: Andrea Dainese
236//
237
238Float_t d0z0[2],covd0z0[3];
239track->GetImpactParameters(d0z0,covd0z0);
240Float_t sigma= 0.0050+0.0060/TMath::Power(track->Pt(),0.9);
241Float_t d0max = 7.*sigma;
242if(TMath::Abs(d0z0[0]) < d0max) return kTRUE;
243
244return kFALSE;
245}
246
0aaa8b91 247//____________________________________________________________________
f2dec884 248Bool_t AlidNdPtHelper::IsPrimaryParticle(AliStack* const stack, Int_t idx, ParticleMode particleMode)
0aaa8b91 249{
774986ef 250//
0aaa8b91 251// check primary particles
847e74b2 252// depending on the particle mode
0aaa8b91 253//
254 if(!stack) return kFALSE;
255
256 TParticle* particle = stack->Particle(idx);
257 if (!particle) return kFALSE;
258
259 // only charged particles
260 Double_t charge = particle->GetPDG()->Charge()/3.;
f2dec884 261 if (TMath::Abs(charge) < 0.001) return kFALSE;
0aaa8b91 262
263 Int_t pdg = TMath::Abs(particle->GetPdgCode());
264
265 // physical primary
266 Bool_t prim = stack->IsPhysicalPrimary(idx);
267
847e74b2 268 if(particleMode==kMCPion) {
0aaa8b91 269 if(prim && pdg==kPiPlus) return kTRUE;
270 else return kFALSE;
271 }
272
847e74b2 273 if (particleMode==kMCKaon) {
0aaa8b91 274 if(prim && pdg==kKPlus) return kTRUE;
275 else return kFALSE;
276 }
277
847e74b2 278 if (particleMode==kMCProton) {
0aaa8b91 279 if(prim && pdg==kProton) return kTRUE;
280 else return kFALSE;
281 }
282
17e8c701 283 if(particleMode==kMCRest) {
284 if(prim && pdg!=kPiPlus && pdg!=kKPlus && pdg!=kProton) return kTRUE;
285 else return kFALSE;
286 }
287
0aaa8b91 288return prim;
289}
290
d269b0e6 291//____________________________________________________________________
f2dec884 292Bool_t AlidNdPtHelper::IsCosmicTrack(AliESDtrack *const track1, AliESDtrack *const track2)
d269b0e6 293{
294//
295// check cosmic tracks
296//
297 if(!track1) return kFALSE;
298 if(!track2) return kFALSE;
d269b0e6 299
774986ef 300 //
301 // cosmic tracks in TPC
302 //
303 //if( TMath::Abs( track1->Theta() - track2->Theta() ) < 0.004 &&
304 // ((TMath::Abs(track1->Phi()-track2->Phi()) - TMath::Pi() )<0.004) &&
305 //if( track1->Pt() > 4.0 && (TMath::Abs(track1->Phi()-track2->Phi())-TMath::Pi())<0.1
306 // && (TMath::Abs(track1->Eta()+track2->Eta())-0.1) < 0.0 && (track1->Charge()+track2->Charge()) == 0)
307
308 //Float_t scaleF= 6.0;
309 if ( track1->Pt() > 4 && track2->Pt() > 4 &&
310 //(TMath::Abs(track1->GetSnp()-track2->GetSnp())-2.) < scaleF * TMath::Sqrt(track1->GetSigmaSnp2()+track2->GetSigmaSnp2()) &&
311 //TMath::Abs(track1->GetTgl()-track2->GetTgl()) < scaleF * TMath::Sqrt(track1->GetSigmaTgl2()+track2->GetSigmaTgl2()) &&
312 //TMath::Abs(track1->OneOverPt()-track2->OneOverPt()) < scaleF * TMath::Sqrt(track1->GetSigma1Pt2()+track2->GetSigma1Pt2()) &&
313 (track1->Charge()+track2->Charge()) == 0 &&
314 track1->Eta()*track2->Eta()<0.0 && TMath::Abs(track1->Eta()+track2->Eta())<0.03 &&
315 TMath::Abs(TMath::Abs(track1->Phi()-track2->Phi())-TMath::Pi())<0.1
316 )
d269b0e6 317 {
774986ef 318 printf("COSMIC candidate \n");
d269b0e6 319
774986ef 320 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());
321 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());
322 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());
323 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()));
324 return kTRUE;
325 }
847e74b2 326
327return kFALSE;
328}
329
0aaa8b91 330//____________________________________________________________________
70fdd197 331void AlidNdPtHelper::PrintConf(AnalysisMode analysisMode, AliTriggerAnalysis::Trigger trigger)
0aaa8b91 332{
333 //
334 // Prints the given configuration
335 //
336
337 TString str(">>>> Running with ");
338
339 switch (analysisMode)
340 {
341 case kInvalid: str += "invalid setting"; break;
342 case kSPD : str += "SPD-only"; break;
343 case kTPC : str += "TPC-only"; break;
344 case kTPCITS : str += "Global tracking"; break;
345 case kTPCSPDvtx : str += "TPC tracking + SPD event vertex"; break;
847e74b2 346 case kTPCSPDvtxUpdate : str += "TPC tracks updated with SPD event vertex point"; break;
791aaf54 347 case kTPCTrackSPDvtx : str += "TPC tracking + Tracks event vertex or SPD event vertex"; break;
348 case kTPCTrackSPDvtxUpdate : str += "TPC tracks updated with Track or SPD event vertex point"; break;
774986ef 349 case kTPCITSHybrid : str += "TPC tracking + ITS refit + >1 SPD cluster"; break;
791aaf54 350 case kTPCITSHybridTrackSPDvtx : str += "TPC tracking + ITS refit + >1 SPD cluster + Tracks event vertex or SPD event vertex"; break;
351 case kTPCITSHybridTrackSPDvtxDCArPt : str += "TPC tracking + ITS refit + >1 SPD cluster + Tracks event vertex or SPD event vertex + DCAr(pt)"; break;
695facdf 352 case kITSStandAloneTrackSPDvtx : str += "ITS standalone + Tracks event vertex or SPD event vertex + DCAr(pt)"; break;
353 case kITSStandAloneTPCTrackSPDvtx : str += "kITSStandAloneTPCTrackSPDvtx + TPC stand alone track + Tracks event vertex or SPD event vertex + DCAr(pt)"; break;
0aaa8b91 354 case kMCRec : str += "TPC tracking + Replace rec. with MC values"; break;
0aaa8b91 355 }
356 str += " and trigger ";
357
70fdd197 358 str += AliTriggerAnalysis::GetTriggerName(trigger);
0aaa8b91 359
360 str += " <<<<";
361
362 Printf("%s", str.Data());
363}
364
365//____________________________________________________________________
e9f7cb15 366Int_t AlidNdPtHelper::ConvertPdgToPid(const TParticle *const particle) {
0aaa8b91 367//
368// Convert Abs(pdg) to pid
369// (0 - e, 1 - muons, 2 - pions, 3 - kaons, 4 - protons, 5 -all rest)
370//
371Int_t pid=-1;
372
373 if (TMath::Abs(particle->GetPdgCode()) == kElectron) { pid = 0; }
374 else if (TMath::Abs(particle->GetPdgCode()) == kMuonMinus) { pid = 1; }
375 else if (TMath::Abs(particle->GetPdgCode()) == kPiPlus) { pid = 2; }
376 else if (TMath::Abs(particle->GetPdgCode()) == kKPlus) { pid = 3; }
377 else if (TMath::Abs(particle->GetPdgCode()) == kProton) { pid = 4; }
378 else { pid = 5; }
379
380return pid;
381}
382
383//_____________________________________________________________________________
f2dec884 384TH1F* AlidNdPtHelper::CreateResHisto(TH2F* const hRes2, TH1F **phMean, Int_t integ, Bool_t drawBinFits, Int_t minHistEntries)
0aaa8b91 385{
bad4ba69 386//
387// Create mean and resolution
388// histograms
389//
0aaa8b91 390 TVirtualPad* currentPad = gPad;
391 TAxis* axis = hRes2->GetXaxis();
392 Int_t nBins = axis->GetNbins();
393 Bool_t overflowBinFits = kFALSE;
394 TH1F* hRes, *hMean;
395 if (axis->GetXbins()->GetSize()){
396 hRes = new TH1F("hRes", "", nBins, axis->GetXbins()->GetArray());
397 hMean = new TH1F("hMean", "", nBins, axis->GetXbins()->GetArray());
398 }
399 else{
400 hRes = new TH1F("hRes", "", nBins, axis->GetXmin(), axis->GetXmax());
401 hMean = new TH1F("hMean", "", nBins, axis->GetXmin(), axis->GetXmax());
402
403 }
404 hRes->SetStats(false);
405 hRes->SetOption("E");
406 hRes->SetMinimum(0.);
407 //
408 hMean->SetStats(false);
409 hMean->SetOption("E");
410
411 // create the fit function
412 TF1 * fitFunc = new TF1("G","[0]*exp(-(x-[1])*(x-[1])/(2.*[2]*[2]))",-3,3);
413
414 fitFunc->SetLineWidth(2);
415 fitFunc->SetFillStyle(0);
416 // create canvas for fits
417 TCanvas* canBinFits = NULL;
418 Int_t nPads = (overflowBinFits) ? nBins+2 : nBins;
419 Int_t nx = Int_t(sqrt(nPads-1.));// + 1;
420 Int_t ny = (nPads-1) / nx + 1;
421 if (drawBinFits) {
422 canBinFits = (TCanvas*)gROOT->FindObject("canBinFits");
423 if (canBinFits) delete canBinFits;
424 canBinFits = new TCanvas("canBinFits", "fits of bins", 200, 100, 500, 700);
425 canBinFits->Divide(nx, ny);
426 }
427
428 // loop over x bins and fit projection
429 Int_t dBin = ((overflowBinFits) ? 1 : 0);
430 for (Int_t bin = 1-dBin; bin <= nBins+dBin; bin++) {
431 if (drawBinFits) canBinFits->cd(bin + dBin);
432 Int_t bin0=TMath::Max(bin-integ,0);
433 Int_t bin1=TMath::Min(bin+integ,nBins);
434 TH1D* hBin = hRes2->ProjectionY("hBin", bin0, bin1);
435 //
436 if (hBin->GetEntries() > minHistEntries) {
437 fitFunc->SetParameters(hBin->GetMaximum(),hBin->GetMean(),hBin->GetRMS());
438 hBin->Fit(fitFunc,"s");
439 Double_t sigma = TMath::Abs(fitFunc->GetParameter(2));
440
441 if (sigma > 0.){
442 hRes->SetBinContent(bin, TMath::Abs(fitFunc->GetParameter(2)));
443 hMean->SetBinContent(bin, fitFunc->GetParameter(1));
444 }
445 else{
446 hRes->SetBinContent(bin, 0.);
447 hMean->SetBinContent(bin,0);
448 }
449 hRes->SetBinError(bin, fitFunc->GetParError(2));
450 hMean->SetBinError(bin, fitFunc->GetParError(1));
451
452 //
453 //
454
455 } else {
456 hRes->SetBinContent(bin, 0.);
457 hRes->SetBinError(bin, 0.);
458 hMean->SetBinContent(bin, 0.);
459 hMean->SetBinError(bin, 0.);
460 }
461
462
463 if (drawBinFits) {
464 char name[256];
465 if (bin == 0) {
466 sprintf(name, "%s < %.4g", axis->GetTitle(), axis->GetBinUpEdge(bin));
467 } else if (bin == nBins+1) {
468 sprintf(name, "%.4g < %s", axis->GetBinLowEdge(bin), axis->GetTitle());
469 } else {
470 sprintf(name, "%.4g < %s < %.4g", axis->GetBinLowEdge(bin),
471 axis->GetTitle(), axis->GetBinUpEdge(bin));
472 }
473 canBinFits->cd(bin + dBin);
474 hBin->SetTitle(name);
475 hBin->SetStats(kTRUE);
476 hBin->DrawCopy("E");
477 canBinFits->Update();
478 canBinFits->Modified();
479 canBinFits->Update();
480 }
481
482 delete hBin;
483 }
484
485 delete fitFunc;
486 currentPad->cd();
487 *phMean = hMean;
488 return hRes;
489}
490
491//_____________________________________________________________________________
492TH1F* AlidNdPtHelper::MakeResol(TH2F * his, Int_t integ, Bool_t type, Bool_t drawBins, Int_t minHistEntries){
493// Create resolution histograms
494
495 TH1F *hisr=0, *hism=0;
496 if (!gPad) new TCanvas;
0aaa8b91 497 hisr = CreateResHisto(his,&hism,integ,drawBins,minHistEntries);
498 if (type) return hism;
499 else return hisr;
500
501return hisr;
502}
503
504//_____________________________________________________________________________
bad4ba69 505TObjArray* AlidNdPtHelper::GetAllChargedTracks(AliESDEvent *esdEvent, AnalysisMode analysisMode)
0aaa8b91 506{
507 //
508 // all charged TPC particles
509 //
510 TObjArray *allTracks = new TObjArray();
511 if(!allTracks) return allTracks;
512
513 AliESDtrack *track=0;
514 for (Int_t iTrack = 0; iTrack < esdEvent->GetNumberOfTracks(); iTrack++)
515 {
847e74b2 516 if(analysisMode == AlidNdPtHelper::kTPC) {
774986ef 517 //
847e74b2 518 // track must be deleted by user
774986ef 519 // esd track parameters are replaced by TPCinner
520 //
bad4ba69 521 track = AliESDtrackCuts::GetTPCOnlyTrack(esdEvent,iTrack);
847e74b2 522 if(!track) continue;
523 }
774986ef 524 else if (analysisMode == AlidNdPtHelper::kTPCSPDvtx || analysisMode == AlidNdPtHelper::kTPCSPDvtxUpdate)
847e74b2 525 {
774986ef 526 //
847e74b2 527 // track must be deleted by the user
774986ef 528 // esd track parameters are replaced by TPCinner
529 //
847e74b2 530 track = AlidNdPtHelper::GetTPCOnlyTrackSPDvtx(esdEvent,iTrack,kFALSE);
531 if(!track) continue;
532 }
791aaf54 533 else if (analysisMode == AlidNdPtHelper::kTPCTrackSPDvtx || analysisMode == AlidNdPtHelper::kTPCTrackSPDvtxUpdate)
534 {
535 //
536 // track must be deleted by the user
537 // esd track parameters are replaced by TPCinner
538 //
539 track = AlidNdPtHelper::GetTPCOnlyTrackTrackSPDvtx(esdEvent,iTrack,kFALSE);
540 if(!track) continue;
541 }
695facdf 542 else if(analysisMode == AlidNdPtHelper::kTPCITSHybrid )
774986ef 543 {
544 track = AlidNdPtHelper::GetTrackSPDvtx(esdEvent,iTrack,kFALSE);
545 }
68f10917 546 else if(analysisMode == AlidNdPtHelper::kTPCITSHybridTrackSPDvtx || analysisMode == AlidNdPtHelper::kTPCITSHybridTrackSPDvtxDCArPt || analysisMode == AlidNdPtHelper::kITSStandAloneTrackSPDvtx || analysisMode ==AlidNdPtHelper::kITSStandAloneTPCTrackSPDvtx)
791aaf54 547 {
548 track = AlidNdPtHelper::GetTrackTrackSPDvtx(esdEvent,iTrack,kFALSE);
549 }
774986ef 550 else
551 {
552 track = esdEvent->GetTrack(iTrack);
0aaa8b91 553 }
774986ef 554
0aaa8b91 555 if(!track) continue;
556
557 if(track->Charge()==0) {
791aaf54 558 if(analysisMode == AlidNdPtHelper::kTPC ||
559 analysisMode == AlidNdPtHelper::kTPCSPDvtx || analysisMode == AlidNdPtHelper::kTPCTrackSPDvtx ||
560 analysisMode == AlidNdPtHelper::kTPCSPDvtxUpdate || analysisMode == AlidNdPtHelper::kTPCTrackSPDvtxUpdate)
847e74b2 561 {
0aaa8b91 562 delete track; continue;
563 } else {
564 continue;
565 }
566 }
567
568 allTracks->Add(track);
569 }
bad4ba69 570
791aaf54 571 if(analysisMode == AlidNdPtHelper::kTPC ||
572 analysisMode == AlidNdPtHelper::kTPCSPDvtx || analysisMode == AlidNdPtHelper::kTPCTrackSPDvtx ||
573 analysisMode == AlidNdPtHelper::kTPCSPDvtxUpdate || analysisMode == AlidNdPtHelper::kTPCTrackSPDvtxUpdate) {
bad4ba69 574
575 allTracks->SetOwner(kTRUE);
576 }
0aaa8b91 577
578return allTracks;
579}
580
847e74b2 581//_____________________________________________________________________________
e9f7cb15 582AliESDtrack *AlidNdPtHelper::GetTPCOnlyTrackSPDvtx(const AliESDEvent* esdEvent, Int_t iTrack, Bool_t bUpdate)
847e74b2 583{
584//
585// Create ESD tracks from TPCinner parameters.
586// Propagte to DCA to SPD vertex.
587// Update using SPD vertex point (parameter)
588//
589// It is user responsibility to delete these tracks
590//
591
592 if (!esdEvent) return NULL;
593 if (!esdEvent->GetPrimaryVertexSPD() ) { return NULL; }
594 if (!esdEvent->GetPrimaryVertexSPD()->GetStatus() ) { return NULL; }
595
596 //
597 AliESDtrack* track = esdEvent->GetTrack(iTrack);
598 if (!track)
599 return NULL;
600
774986ef 601 Bool_t isOK = kFALSE;
602 Double_t x[3]; track->GetXYZ(x);
603 Double_t b[3]; AliTracker::GetBxByBz(x,b);
604
847e74b2 605 // create new ESD track
606 AliESDtrack *tpcTrack = new AliESDtrack();
607
608 // relate TPC-only tracks (TPCinner) to SPD vertex
609 AliExternalTrackParam cParam;
610 if(bUpdate) {
774986ef 611 isOK = track->RelateToVertexTPCBxByBz(esdEvent->GetPrimaryVertexSPD(),b,kVeryBig,&cParam);
847e74b2 612 track->Set(cParam.GetX(),cParam.GetAlpha(),cParam.GetParameter(),cParam.GetCovariance());
613
614 // reject fake tracks
615 if(track->Pt() > 10000.) {
616 ::Error("Exclude no physical tracks","pt>10000. GeV");
617 delete tpcTrack;
618 return NULL;
619 }
620 }
621 else {
774986ef 622 isOK = track->RelateToVertexTPCBxByBz(esdEvent->GetPrimaryVertexSPD(), b, kVeryBig);
847e74b2 623 }
624
625 // only true if we have a tpc track
626 if (!track->FillTPCOnlyTrack(*tpcTrack))
627 {
628 delete tpcTrack;
629 return NULL;
630 }
774986ef 631
632 if(!isOK) return NULL;
847e74b2 633
634return tpcTrack;
635}
636
791aaf54 637//_____________________________________________________________________________
e9f7cb15 638AliESDtrack *AlidNdPtHelper::GetTPCOnlyTrackTrackSPDvtx(const AliESDEvent* esdEvent, Int_t iTrack, Bool_t bUpdate)
791aaf54 639{
640//
641// Create ESD tracks from TPCinner parameters.
642// Propagte to DCA to Track or SPD vertex.
643// Update using SPD vertex point (parameter)
644//
645// It is user responsibility to delete these tracks
646//
647 if (!esdEvent) return NULL;
648 const AliESDVertex *vertex = esdEvent->GetPrimaryVertexTracks();
649 if(vertex->GetNContributors()<1) {
650 // SPD vertex
651 vertex = esdEvent->GetPrimaryVertexSPD();
652 }
653 if(!vertex) return NULL;
654
655 //
656 AliESDtrack* track = esdEvent->GetTrack(iTrack);
657 if (!track)
658 return NULL;
659
660 Bool_t isOK = kFALSE;
661 Double_t x[3]; track->GetXYZ(x);
662 Double_t b[3]; AliTracker::GetBxByBz(x,b);
663
664 // create new ESD track
665 AliESDtrack *tpcTrack = new AliESDtrack();
666
667 // relate TPC-only tracks (TPCinner) to SPD vertex
668 AliExternalTrackParam cParam;
669 if(bUpdate) {
670 isOK = track->RelateToVertexTPCBxByBz(vertex,b,kVeryBig,&cParam);
671 track->Set(cParam.GetX(),cParam.GetAlpha(),cParam.GetParameter(),cParam.GetCovariance());
672
673 // reject fake tracks
674 if(track->Pt() > 10000.) {
675 ::Error("Exclude no physical tracks","pt>10000. GeV");
676 delete tpcTrack;
677 return NULL;
678 }
679 }
680 else {
681 isOK = track->RelateToVertexTPCBxByBz(vertex, b, kVeryBig);
682 }
683
684 // only true if we have a tpc track
685 if (!track->FillTPCOnlyTrack(*tpcTrack))
686 {
687 delete tpcTrack;
688 return NULL;
689 }
690
691 if(!isOK) return NULL;
692
693return tpcTrack;
694}
695
774986ef 696//_____________________________________________________________________________
e9f7cb15 697AliESDtrack *AlidNdPtHelper::GetTrackSPDvtx(const AliESDEvent* esdEvent, Int_t iTrack, Bool_t bUpdate)
774986ef 698{
699//
700// Propagte track to DCA to SPD vertex.
701// Update using SPD vertex point (parameter)
702//
703 if (!esdEvent) return NULL;
704 if (!esdEvent->GetPrimaryVertexSPD() ) { return NULL; }
705 if (!esdEvent->GetPrimaryVertexSPD()->GetStatus() ) { return NULL; }
706
707 //
708 AliESDtrack* track = esdEvent->GetTrack(iTrack);
709 if (!track)
710 return NULL;
711
712 Bool_t isOK = kFALSE;
713 Double_t x[3]; track->GetXYZ(x);
714 Double_t b[3]; AliTracker::GetBxByBz(x,b);
715
716 // relate tracks to SPD vertex
717 AliExternalTrackParam cParam;
718 if(bUpdate) {
719 isOK = track->RelateToVertexBxByBz(esdEvent->GetPrimaryVertexSPD(),b,kVeryBig,&cParam);
720 track->Set(cParam.GetX(),cParam.GetAlpha(),cParam.GetParameter(),cParam.GetCovariance());
721
722 // reject fake tracks
723 if(track->Pt() > 10000.) {
724 ::Error("Exclude no physical tracks","pt>10000. GeV");
725 return NULL;
726 }
727 }
728 else {
729 isOK = track->RelateToVertexBxByBz(esdEvent->GetPrimaryVertexSPD(), b, kVeryBig);
730 }
731
732 if(!isOK) return NULL;
733
734return track;
735}
736
791aaf54 737//_____________________________________________________________________________
e9f7cb15 738AliESDtrack *AlidNdPtHelper::GetTrackTrackSPDvtx(const AliESDEvent* esdEvent, Int_t iTrack, Bool_t bUpdate)
791aaf54 739{
740//
741// Propagte track to DCA to Track or SPD vertex.
742// Update using SPD vertex point (parameter)
743//
744 if (!esdEvent) return NULL;
745
746 const AliESDVertex *vertex = esdEvent->GetPrimaryVertexTracks();
747 if(vertex->GetNContributors()<1) {
748 // SPD vertex
749 vertex = esdEvent->GetPrimaryVertexSPD();
750 }
751 if(!vertex) return NULL;
752
753 //
754 AliESDtrack* track = esdEvent->GetTrack(iTrack);
755 if (!track)
756 return NULL;
757
758 Bool_t isOK = kFALSE;
759 Double_t x[3]; track->GetXYZ(x);
760 Double_t b[3]; AliTracker::GetBxByBz(x,b);
761
762 // relate tracks to SPD vertex
763 AliExternalTrackParam cParam;
764 if(bUpdate) {
765 isOK = track->RelateToVertexBxByBz(vertex,b,kVeryBig,&cParam);
766 track->Set(cParam.GetX(),cParam.GetAlpha(),cParam.GetParameter(),cParam.GetCovariance());
767
768 // reject fake tracks
769 if(track->Pt() > 10000.) {
770 ::Error("Exclude no physical tracks","pt>10000. GeV");
771 return NULL;
772 }
773 }
774 else {
775 isOK = track->RelateToVertexBxByBz(vertex, b, kVeryBig);
776 }
777
778 if(!isOK) return NULL;
779
780return track;
781}
782
55468faf 783//_____________________________________________________________________________
784Bool_t AlidNdPtHelper::SelectEvent(const AliESDEvent* const esdEvent, AliESDtrackCuts* const esdTrackCuts) {
785// select events with at least
786// one reconstructed primary track in acceptance
787// pT>0.5 GeV/c, |eta|<0.8 for cross section studies
788
789if(!esdEvent) return kFALSE;
790if(!esdTrackCuts) return kFALSE;
791
792 AliESDtrack *track=0;
793 Int_t count = 0;
794 for (Int_t iTrack = 0; iTrack < esdEvent->GetNumberOfTracks(); iTrack++)
795 {
796 track = esdEvent->GetTrack(iTrack);
797 if(!track) continue;
798 if(track->Charge()==0) continue;
799 if(!esdTrackCuts->AcceptTrack(track)) continue;
800 if(track->Pt() < 0.5) continue;
801 if(TMath::Abs(track->Eta()) > 0.8) continue;
802
803 count++;
804 }
805
806 if(count > 0) return kTRUE;
807 else return kFALSE;
808
809return kFALSE;
810}
811
812//_____________________________________________________________________________
813Bool_t AlidNdPtHelper::SelectMCEvent(AliMCEvent* const mcEvent) {
814//
815// select events with at least
816// one prompt (MC primary) track in acceptance
817// pT>0.5 GeV/c, |eta|<0.8 for cross section studies
818//
819
820if(!mcEvent) return kFALSE;
821AliStack* stack = mcEvent->Stack();
822if(!stack) return kFALSE;
823
824 Int_t count = 0;
825 for (Int_t iMc = 0; iMc < stack->GetNtrack(); ++iMc)
826 {
827 TParticle* particle = stack->Particle(iMc);
828 if (!particle) continue;
829
830 // only charged particles
831 if(!particle->GetPDG()) continue;
832 Double_t charge = particle->GetPDG()->Charge()/3.;
833 if(charge == 0) continue;
834
835 // physical primary
836 Bool_t prim = stack->IsPhysicalPrimary(iMc);
837 if(!prim) continue;
838
839 if(particle->Pt() < 0.5) continue;
840 if(TMath::Abs(particle->Eta()) > 0.8) continue;
841
842 count++;
843 }
844
845 if(count > 0) return kTRUE;
846 else return kFALSE;
847
848return kFALSE;
849}
850
0aaa8b91 851//_____________________________________________________________________________
e9f7cb15 852Int_t AlidNdPtHelper::GetTPCMBTrackMult(const AliESDEvent *const esdEvent,const AlidNdPtEventCuts *const evtCuts, const AlidNdPtAcceptanceCuts *const accCuts,const AliESDtrackCuts *const trackCuts)
0aaa8b91 853{
854 //
855 // get MB event track multiplicity
856 //
857 if(!esdEvent)
858 {
859 ::Error("AlidNdPtHelper::GetTPCMBTrackMult()","esd event is NULL");
860 return 0;
861 }
862
863 if(!evtCuts || !accCuts || !trackCuts)
864 {
865 ::Error("AlidNdPtHelper::GetTPCMBTrackMult()","cuts not available");
866 return 0;
867 }
868
869 //
870 Double_t pos[3]={evtCuts->GetMeanXv(),evtCuts->GetMeanYv(),evtCuts->GetMeanZv()};
871 Double_t err[3]={evtCuts->GetSigmaMeanXv(),evtCuts->GetSigmaMeanYv(),evtCuts->GetSigmaMeanZv()};
872 AliESDVertex vtx0(pos,err);
873
874 //
875 Float_t maxDCAr = accCuts->GetMaxDCAr();
876 Float_t maxDCAz = accCuts->GetMaxDCAz();
877 Float_t minTPCClust = trackCuts->GetMinNClusterTPC();
878 //
879 Int_t ntracks = esdEvent->GetNumberOfTracks();
880 Double_t dca[2],cov[3];
881 Int_t mult=0;
882 for (Int_t i=0;i <ntracks; i++){
883 AliESDtrack *t = esdEvent->GetTrack(i);
884 if (!t) continue;
885 if (t->Charge() == 0) continue;
886 if (!t->GetTPCInnerParam()) continue;
887 if (t->GetTPCNcls()<minTPCClust) continue;
888 //
774986ef 889 Double_t x[3]; t->GetXYZ(x);
890 Double_t b[3]; AliTracker::GetBxByBz(x,b);
891 const Double_t kMaxStep = 1; //max step over the material
892
0aaa8b91 893 AliExternalTrackParam *tpcTrack = new AliExternalTrackParam(*(t->GetTPCInnerParam()));
774986ef 894 if (!tpcTrack->PropagateToDCABxByBz(&vtx0,b,kMaxStep,dca,cov))
0aaa8b91 895 {
896 if(tpcTrack) delete tpcTrack;
897 continue;
898 }
899 //
900 if (TMath::Abs(dca[0])>maxDCAr || TMath::Abs(dca[1])>maxDCAz) {
901 if(tpcTrack) delete tpcTrack;
902 continue;
903 }
904
905 mult++;
906
907 if(tpcTrack) delete tpcTrack;
908 }
909
910return mult;
911}
912
913//_____________________________________________________________________________
e9f7cb15 914Int_t AlidNdPtHelper::GetTPCMBPrimTrackMult(const AliESDEvent *const esdEvent, AliStack *const stack, const AlidNdPtEventCuts *const evtCuts, const AlidNdPtAcceptanceCuts *const accCuts, const AliESDtrackCuts *const trackCuts)
0aaa8b91 915{
916 //
917 // get MB primary event track multiplicity
918 //
919 if(!esdEvent)
920 {
921 ::Error("AlidNdPtHelper::GetTPCMBPrimTrackMult()","esd event is NULL");
922 return 0;
923 }
924
925 if(!stack)
926 {
927 ::Error("AlidNdPtHelper::GetTPCMBPrimTrackMult()","esd event is NULL");
928 return 0;
929 }
930
931 if(!evtCuts || !accCuts || !trackCuts)
932 {
933 ::Error("AlidNdPtHelper::GetTPCMBPrimTrackMult()","cuts not available");
934 return 0;
935 }
936
937 //
938 Double_t pos[3]={evtCuts->GetMeanXv(),evtCuts->GetMeanYv(),evtCuts->GetMeanZv()};
939 Double_t err[3]={evtCuts->GetSigmaMeanXv(),evtCuts->GetSigmaMeanYv(),evtCuts->GetSigmaMeanZv()};
940 AliESDVertex vtx0(pos,err);
941
942 //
943 Float_t maxDCAr = accCuts->GetMaxDCAr();
944 Float_t maxDCAz = accCuts->GetMaxDCAz();
945 Float_t minTPCClust = trackCuts->GetMinNClusterTPC();
946
947 //
948 Int_t ntracks = esdEvent->GetNumberOfTracks();
949 Double_t dca[2],cov[3];
950 Int_t mult=0;
951 for (Int_t i=0;i <ntracks; i++){
952 AliESDtrack *t = esdEvent->GetTrack(i);
953 if (!t) continue;
954 if (t->Charge() == 0) continue;
955 if (!t->GetTPCInnerParam()) continue;
956 if (t->GetTPCNcls()<minTPCClust) continue;
957 //
774986ef 958 Double_t x[3]; t->GetXYZ(x);
959 Double_t b[3]; AliTracker::GetBxByBz(x,b);
960 const Double_t kMaxStep = 1; //max step over the material
961
0aaa8b91 962 AliExternalTrackParam *tpcTrack = new AliExternalTrackParam(*(t->GetTPCInnerParam()));
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
991return mult;
992}
993
994
791aaf54 995//_____________________________________________________________________________
996Double_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 1008if (pt <= 0.17) return 1.0;
1009if (pt <= 0.4) return GetLinearInterpolationValue(0.17,1.0,0.4,1.07, pt);
1010if (pt <= 0.6) return GetLinearInterpolationValue(0.4,1.07,0.6,1.25, pt);
1011if (pt <= 1.2) return GetLinearInterpolationValue(0.6,1.25,1.2,1.5, pt);
1012return 1.5;
1013
1014}
1015
d4640855 1016//_____________________________________________________________________________
1017Double_t AlidNdPtHelper::GetStrangenessCorrFactorPbPb(const Double_t pt)
1018{
1019// data driven correction factor for secondaries (PbPb)
1020
1021if (pt <= 0.25) return 1.0;
1022if (pt <= 0.5) return GetLinearInterpolationValue(0.25,1.0,0.5,1.4, pt);
1023if (pt <= 1.0) return GetLinearInterpolationValue(0.5,1.4,1.0,1.47, pt);
1024if (pt <= 2.0) return GetLinearInterpolationValue(1.0,1.47,2.0,1.56, pt);
1025if (pt <= 5.0) return GetLinearInterpolationValue(2.0,1.56,5.0,1.67, pt);
1026return 1.67;
1027
1028}
1029
791aaf54 1030//___________________________________________________________________________
e9f7cb15 1031Double_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 1040Int_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
1086return mult;
1087}
1088
1089//_______________________________________________________________________
f2dec884 1090void 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 1116TH1* 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 1134return hCont;
0aaa8b91 1135}
1136
1137
1138//_____________________________________________________________________________
f2dec884 1139TH1* 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 1149return hScale;
0aaa8b91 1150}
1151
1152//_____________________________________________________________________________
e9f7cb15 1153TH1* 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 1169return h1Clone;
0aaa8b91 1170}
1171
1172//_____________________________________________________________________________
e9f7cb15 1173TH1* 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 1189return h1Clone;
0aaa8b91 1190}
1191
1192//_____________________________________________________________________________
e9f7cb15 1193TH1* 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++) {
1207 sprintf(name,"mom_%d",i);
1208 TH1D *hist = (TH1D*)hist1->ProjectionY(name,i+1,i+1);
1209
1210 sprintf(name,"mom_norm");
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 1223return histNorm;
0aaa8b91 1224}
1225
1226//_____________________________________________________________________________
e9f7cb15 1227//THnSparse* AlidNdPtHelper::GenerateCorrMatrix(THnSparse *const hist1, const THnSparse *const hist2, char *const name) {
1228THnSparse* AlidNdPtHelper::GenerateCorrMatrix(THnSparse *const hist1, const THnSparse *const hist2, const char *name) {
0aaa8b91 1229// generate correction matrix
1230if(!hist1 || !hist2) return 0;
1231
1232THnSparse *h =(THnSparse*)hist1->Clone(name);;
1233h->Divide(hist1,hist2,1,1,"B");
1234
1235return h;
1236}
1237
1238//_____________________________________________________________________________
a9b12ce1 1239//TH2* AlidNdPtHelper::GenerateCorrMatrix(TH2 *const hist1, TH2 *const hist2, char *const name) {
1240TH2* AlidNdPtHelper::GenerateCorrMatrix(TH2 *const hist1, TH2 *const hist2, const char *name) {
0aaa8b91 1241// generate correction matrix
1242if(!hist1 || !hist2) return 0;
1243
1244TH2D *h =(TH2D*)hist1->Clone(name);;
1245h->Divide(hist1,hist2,1,1,"B");
1246
1247return h;
1248}
1249
1250//_____________________________________________________________________________
a9b12ce1 1251//TH1* AlidNdPtHelper::GenerateCorrMatrix(TH1 *const hist1, TH1 *const hist2, char *const name) {
1252TH1* AlidNdPtHelper::GenerateCorrMatrix(TH1 *const hist1, TH1 *const hist2, const char* name) {
0aaa8b91 1253// generate correction matrix
1254if(!hist1 || !hist2) return 0;
1255
1256TH1D *h =(TH1D*)hist1->Clone(name);;
1257h->Divide(hist1,hist2,1,1,"B");
1258
1259return h;
1260}
1261
1262//_____________________________________________________________________________
a9b12ce1 1263//THnSparse* AlidNdPtHelper::GenerateContCorrMatrix(THnSparse *const hist1, THnSparse *const hist2, char *const name) {
e9f7cb15 1264THnSparse* AlidNdPtHelper::GenerateContCorrMatrix(THnSparse *const hist1, const THnSparse *const hist2, const char* name) {
0aaa8b91 1265// generate contamination correction matrix
1266if(!hist1 || !hist2) return 0;
1267
1268THnSparse *hist = GenerateCorrMatrix(hist1, hist2, name);
1269if(!hist) return 0;
1270
1271// only for non ZERO bins!!!!
1272
1273Int_t* coord = new Int_t[hist->GetNdimensions()];
1274memset(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
1284delete [] coord;
1285
1286return hist;
1287}
1288
1289//_____________________________________________________________________________
a9b12ce1 1290//TH2* AlidNdPtHelper::GenerateContCorrMatrix(TH2 *const hist1, TH2 *const hist2, char *const name) {
1291TH2* AlidNdPtHelper::GenerateContCorrMatrix(TH2 *const hist1, TH2 *const hist2, const char* name) {
0aaa8b91 1292// generate contamination correction matrix
1293if(!hist1 || !hist2) return 0;
1294
1295TH2 *hist = GenerateCorrMatrix(hist1, hist2, name);
1296if(!hist) return 0;
1297
1298Int_t nBinsX = hist->GetNbinsX();
1299Int_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
1310return hist;
1311}
1312
1313//_____________________________________________________________________________
a9b12ce1 1314//TH1* AlidNdPtHelper::GenerateContCorrMatrix(TH1 *const hist1, TH1 *const hist2, char *const name) {
1315TH1* AlidNdPtHelper::GenerateContCorrMatrix(TH1 *const hist1, TH1 *const hist2, const char* name) {
0aaa8b91 1316// generate contamination correction matrix
1317if(!hist1 || !hist2) return 0;
1318
1319TH1 *hist = GenerateCorrMatrix(hist1, hist2, name);
1320if(!hist) return 0;
1321
1322Int_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
1331return hist;
1332}
1333
1334//_____________________________________________________________________________
e9f7cb15 1335const 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()));
774986ef 1376 if (!tpcTrack->PropagateToDCABxByBz(&vtx0,b,kMaxStep,dca,cov)) continue;
0aaa8b91 1377
1378 //
bad4ba69 1379 if (TMath::Abs(dca[0])>maxDCAr) continue;
1380 //if (TMath::Sqrt(cov[0])>sigmaXYcut) continue;
1381 if (TMath::Abs(tpcTrack->GetZ())>maxDCAz) continue;
0aaa8b91 1382
0aaa8b91 1383 ztrack[counter]=tpcTrack->GetZ();
1384 counter++;
1385
1386 if(tpcTrack) delete tpcTrack;
1387 }
bad4ba69 1388
0aaa8b91 1389 //
1390 // Find LTM z position
1391 //
1392 Double_t mean=0, sigma=0;
1393 if (counter<ntracksMin) return 0;
1394 //
1395 Int_t nused = TMath::Nint(counter*fraction);
1396 if (nused==counter) nused=counter-1;
1397 if (nused>1){
1398 AliMathBase::EvaluateUni(counter, ztrack.GetMatrixArray(), mean,sigma, TMath::Nint(counter*fraction));
1399 sigma/=TMath::Sqrt(nused);
1400 }else{
1401 mean = TMath::Mean(counter, ztrack.GetMatrixArray());
1402 sigma = TMath::RMS(counter, ztrack.GetMatrixArray());
1403 sigma/=TMath::Sqrt(counter-1);
1404 }
1405 vtxpos[2]=mean;
1406 vtxsigma[2]=sigma;
1407 const AliESDVertex* vertex = new AliESDVertex(vtxpos, vtxsigma);
1408 return vertex;
1409}
1410
1411//_____________________________________________________________________________
e9f7cb15 1412Int_t AlidNdPtHelper::GetSPDMBTrackMult(const AliESDEvent* const esdEvent, Float_t deltaThetaCut, Float_t deltaPhiCut)
0aaa8b91 1413{
1414 //
1415 // SPD track multiplicity
1416 //
1417
1418 // get tracklets
1419 const AliMultiplicity* mult = esdEvent->GetMultiplicity();
1420 if (!mult)
1421 return 0;
1422
1423 // get multiplicity from SPD tracklets
1424 Int_t inputCount = 0;
1425 for (Int_t i=0; i<mult->GetNumberOfTracklets(); ++i)
1426 {
1427 //printf("%d %f %f %f\n", i, mult->GetTheta(i), mult->GetPhi(i), mult->GetDeltaPhi(i));
1428
1429 Float_t phi = mult->GetPhi(i);
1430 if (phi < 0)
1431 phi += TMath::Pi() * 2;
1432 Float_t deltaPhi = mult->GetDeltaPhi(i);
1433 Float_t deltaTheta = mult->GetDeltaTheta(i);
1434
1435 if (TMath::Abs(deltaPhi) > 1)
1436 printf("WARNING: Very high Delta Phi: %d %f %f %f\n", i, mult->GetTheta(i), mult->GetPhi(i), deltaPhi);
1437
1438 if (deltaThetaCut > 0. && TMath::Abs(deltaTheta) > deltaThetaCut)
1439 continue;
1440
1441 if (deltaPhiCut > 0. && TMath::Abs(deltaPhi) > deltaPhiCut)
1442 continue;
1443
1444 ++inputCount;
1445 }
1446
1447return inputCount;
1448}
1449
1450//_____________________________________________________________________________
e9f7cb15 1451Int_t AlidNdPtHelper::GetSPDMBPrimTrackMult(const AliESDEvent* const esdEvent, AliStack* const stack, Float_t deltaThetaCut, Float_t deltaPhiCut)
0aaa8b91 1452{
1453 //
1454 // SPD track multiplicity
1455 //
1456
1457 // get tracklets
1458 const AliMultiplicity* mult = esdEvent->GetMultiplicity();
1459 if (!mult)
1460 return 0;
1461
1462 // get multiplicity from SPD tracklets
1463 Int_t inputCount = 0;
1464 for (Int_t i=0; i<mult->GetNumberOfTracklets(); ++i)
1465 {
1466 //printf("%d %f %f %f\n", i, mult->GetTheta(i), mult->GetPhi(i), mult->GetDeltaPhi(i));
1467
1468 Float_t phi = mult->GetPhi(i);
1469 if (phi < 0)
1470 phi += TMath::Pi() * 2;
1471 Float_t deltaPhi = mult->GetDeltaPhi(i);
1472 Float_t deltaTheta = mult->GetDeltaTheta(i);
1473
1474 if (TMath::Abs(deltaPhi) > 1)
1475 printf("WARNING: Very high Delta Phi: %d %f %f %f\n", i, mult->GetTheta(i), mult->GetPhi(i), deltaPhi);
1476
1477 if (deltaThetaCut > 0. && TMath::Abs(deltaTheta) > deltaThetaCut)
1478 continue;
1479
1480 if (deltaPhiCut > 0. && TMath::Abs(deltaPhi) > deltaPhiCut)
1481 continue;
1482
1483
1484 if (mult->GetLabel(i, 0) < 0 || mult->GetLabel(i, 0) != mult->GetLabel(i, 1) ||
1485 !stack->IsPhysicalPrimary(mult->GetLabel(i, 0)))
1486 continue;
1487
1488
1489 ++inputCount;
1490 }
1491
1492return inputCount;
1493}
1494
1495