1 //------------------------------------------------------------------------------
2 // Implementation of AliPerformanceDEdx class. It keeps information from
3 // comparison of reconstructed and MC particle tracks. In addtion,
4 // it keeps selection cuts used during comparison. The comparison
5 // information is stored in the ROOT histograms. Analysis of these
6 // histograms can be done by using Analyse() class function. The result of
7 // the analysis (histograms/graphs) are stored in the folder which is
8 // a data of AliPerformanceDEdx.
10 // Author: J.Otwinowski 04/02/2008
11 //------------------------------------------------------------------------------
15 // after running comparison task, read the file, and get component
16 gROOT->LoadMacro("$ALICE_ROOT/PWG1/Macros/LoadMyLibs.C");
18 TFile f("Output.root");
19 //AliPerformanceDEdx * compObj = (AliPerformanceDEdx*)f.Get("AliPerformanceDEdx");
20 AliPerformanceDEdx * compObj = (AliPerformanceDEdx*)coutput->FindObject("AliPerformanceDEdx");
22 // Analyse comparison data
25 // the output histograms/graphs will be stored in the folder "folderDEdx"
26 compObj->GetAnalysisFolder()->ls("*");
28 // user can save whole comparison object (or only folder with anlysed histograms)
29 // in the seperate output file (e.g.)
30 TFile fout("Analysed_DEdx.root","recreate");
31 //compObj->Write(); // compObj->GetAnalysisFolder()->Write();
32 compObj->GetAnalysisFolder()->Write();
37 #include <TDirectory.h>
44 #include "AliPerformanceDEdx.h"
45 #include "AliESDEvent.h"
46 #include "AliTracker.h"
47 #include "AliMCEvent.h"
48 #include "AliESDtrack.h"
51 #include "AliMCInfoCuts.h"
52 #include "AliMathBase.h"
53 #include "AliRecInfoCuts.h"
54 #include "AliTreeDraw.h"
55 #include "AliHeader.h"
56 #include "AliGenEventHeader.h"
60 ClassImp(AliPerformanceDEdx)
62 //_____________________________________________________________________________
63 AliPerformanceDEdx::AliPerformanceDEdx():
64 AliPerformanceObject("AliPerformanceDEdx"),
76 // default constructor
80 //_____________________________________________________________________________
81 AliPerformanceDEdx::AliPerformanceDEdx(Char_t* name="AliPerformanceDEdx", Char_t* title="AliPerformanceDEdx",Int_t analysisMode=0, Bool_t hptGenerator=kFALSE):
82 AliPerformanceObject(name,title),
96 SetAnalysisMode(analysisMode);
97 SetHptGenerator(hptGenerator);
102 //_____________________________________________________________________________
103 AliPerformanceDEdx::~AliPerformanceDEdx()
106 if(fDeDxHisto) delete fDeDxHisto; fDeDxHisto=0;
107 if(fAnalysisFolder) delete fAnalysisFolder; fAnalysisFolder=0;
110 //_____________________________________________________________________________
111 void AliPerformanceDEdx::Init()
118 Double_t pMin = 1.e-2, pMax = 10.;
121 if (IsHptGenerator()) {
122 nPBins = 100; pMax = 100.;
123 binsP = CreateLogAxis(nPBins,pMin,pMax);
125 binsP = CreateLogAxis(nPBins,pMin,pMax);
131 Double_t binsP[32] = {0.,0.05,0.1,0.15,0.2,0.25,0.3,0.35,0.4,0.45,0.5,0.55,0.6,0.7,0.8,0.9,1.0,1.2,1.4,1.6,1.8,2.0,2.25,2.5,2.75,3.,3.5,4.,5.,6.,8.,10.};
132 Double_t pMin = 0., pMax = 10.;
134 if(IsHptGenerator() == kTRUE) {
136 pMin = 0.; pMax = 100.;
140 //dedx:alpha:y:z:snp:tgl:ncls:p
141 //dedx:phi:y:z:snp:tgl:ncls:p
142 //Int_t binsQA[8] = {300, 50, 50, 50, 50, 50, 80, nPBins};
143 //Double_t xminQA[8] = {0, -4,-20,-250, -1, -2, 0, pMin};
144 //Double_t xmaxQA[8] = {300, 4, 20, 250, 1, 2, 160, pMax};
145 Int_t binsQA[8] = {300, 144, 50, 50, 50, 50, 80, nPBins};
146 Double_t xminQA[8] = {0, -TMath::Pi(),-20,-250, -1, -2, 0, pMin};
147 Double_t xmaxQA[8] = {300, TMath::Pi(), 20, 250, 1, 2, 160, pMax};
149 //fDeDxHisto = new THnSparseF("fDeDxHisto","dedx:alpha:y:z:snp:tgl:ncls:momentum",8,binsQA,xminQA,xmaxQA);
150 fDeDxHisto = new THnSparseF("fDeDxHisto","dedx:phi:y:z:snp:tgl:ncls:momentum",8,binsQA,xminQA,xmaxQA);
151 fDeDxHisto->SetBinEdges(7,binsP);
153 fDeDxHisto->GetAxis(0)->SetTitle("dedx (a.u.)");
154 fDeDxHisto->GetAxis(1)->SetTitle("#phi (rad)");
155 fDeDxHisto->GetAxis(2)->SetTitle("y (cm)");
156 fDeDxHisto->GetAxis(3)->SetTitle("z (cm)");
157 fDeDxHisto->GetAxis(4)->SetTitle("sin#phi");
158 fDeDxHisto->GetAxis(5)->SetTitle("tan#lambda");
159 fDeDxHisto->GetAxis(6)->SetTitle("ncls");
160 fDeDxHisto->GetAxis(7)->SetTitle("p (GeV/c)");
165 AliDebug(AliLog::kError, "ERROR: Cannot find AliMCInfoCuts object");
167 AliDebug(AliLog::kError, "ERROR: Cannot find AliRecInfoCuts object");
170 fAnalysisFolder = CreateFolder("folderDEdx","Analysis de/dx Folder");
173 //_____________________________________________________________________________
174 void AliPerformanceDEdx::ProcessTPC(AliStack* const /*stack*/, AliESDtrack *const /*esdTrack*/)
176 // Fill dE/dx comparison information
177 AliDebug(AliLog::kWarning, "Warning: Not implemented");
180 //_____________________________________________________________________________
181 void AliPerformanceDEdx::ProcessInnerTPC(AliStack* const stack, AliESDtrack *const esdTrack, AliESDEvent* const esdEvent)
184 // Fill TPC track information at inner TPC wall
186 if(!esdEvent) return;
187 if(!esdTrack) return;
189 if( IsUseTrackVertex() )
191 // Relate TPC inner params to prim. vertex
192 const AliESDVertex *vtxESD = esdEvent->GetPrimaryVertexTracks();
193 Double_t x[3]; esdTrack->GetXYZ(x);
194 Double_t b[3]; AliTracker::GetBxByBz(x,b);
195 Bool_t isOK = esdTrack->RelateToVertexTPCBxByBz(vtxESD, b, kVeryBig);
199 // JMT -- recaluclate DCA for HLT if not present
200 if ( dca[0] == 0. && dca[1] == 0. ) {
201 track->GetDZ( vtxESD->GetX(), vtxESD->GetY(), vtxESD->GetZ(), esdEvent->GetMagneticField(), dca );
206 // get external param. at inner TPC wall
207 const AliExternalTrackParam *innerParam = esdTrack->GetInnerParam();
208 if(!innerParam) return;
210 Float_t dca[2], cov[3]; // dca_xy, dca_z, sigma_xy, sigma_xy_z, sigma_z
211 esdTrack->GetImpactParametersTPC(dca,cov);
213 if((esdTrack->GetStatus()&AliESDtrack::kTPCrefit)==0) return; // TPC refit
218 Double_t dcaToVertex = -1;
219 if( fCutsRC->GetDCAToVertex2D() )
221 dcaToVertex = TMath::Sqrt(dca[0]*dca[0]/fCutsRC->GetMaxDCAToVertexXY()/fCutsRC->GetMaxDCAToVertexXY() + dca[1]*dca[1]/fCutsRC->GetMaxDCAToVertexZ()/fCutsRC->GetMaxDCAToVertexZ());
223 if(fCutsRC->GetDCAToVertex2D() && dcaToVertex > 1) return;
224 if(!fCutsRC->GetDCAToVertex2D() && TMath::Abs(dca[0]) > fCutsRC->GetMaxDCAToVertexXY()) return;
225 if(!fCutsRC->GetDCAToVertex2D() && TMath::Abs(dca[1]) > fCutsRC->GetMaxDCAToVertexZ()) return;
227 Float_t dedx = esdTrack->GetTPCsignal();
228 Int_t ncls = esdTrack->GetTPCNcls();
230 Double_t pt = innerParam->Pt();
231 Double_t lam = TMath::ATan2(innerParam->Pz(),innerParam->Pt());
232 Double_t p = pt/TMath::Cos(lam);
233 //Double_t alpha = innerParam->GetAlpha();
234 Double_t phi = TMath::ATan2(innerParam->Py(),innerParam->Px());
235 //if(phi<0.) phi += 2.*TMath::Phi();
236 Double_t y = innerParam->GetY();
237 Double_t z = innerParam->GetZ();
238 Double_t snp = innerParam->GetSnp();
239 Double_t tgl = innerParam->GetTgl();
241 //Double_t vDeDxHisto[8] = {dedx,alpha,y,z,snp,tgl,ncls,p};
242 Double_t vDeDxHisto[8] = {dedx,phi,y,z,snp,tgl,ncls,p};
243 fDeDxHisto->Fill(vDeDxHisto);
248 //_____________________________________________________________________________
249 void AliPerformanceDEdx::ProcessTPCITS(AliStack* const /*stack*/, AliESDtrack *const /*esdTrack*/)
251 // Fill dE/dx comparison information
253 AliDebug(AliLog::kWarning, "Warning: Not implemented");
256 //_____________________________________________________________________________
257 void AliPerformanceDEdx::ProcessConstrained(AliStack* const /*stack*/, AliESDtrack *const /*esdTrack*/)
259 // Fill dE/dx comparison information
261 AliDebug(AliLog::kWarning, "Warning: Not implemented");
264 //_____________________________________________________________________________
265 Long64_t AliPerformanceDEdx::Merge(TCollection* const list)
267 // Merge list of objects (needed by PROOF)
275 TIterator* iter = list->MakeIterator();
278 // collection of generated histograms
280 while((obj = iter->Next()) != 0)
282 AliPerformanceDEdx* entry = dynamic_cast<AliPerformanceDEdx*>(obj);
283 if (entry == 0) continue;
285 fDeDxHisto->Add(entry->fDeDxHisto);
292 //_____________________________________________________________________________
293 void AliPerformanceDEdx::Exec(AliMCEvent* const mcEvent, AliESDEvent *const esdEvent, AliESDfriend *const esdFriend, const Bool_t bUseMC, const Bool_t bUseESDfriend)
295 // Process comparison information
299 AliDebug(AliLog::kError, "esdEvent not available");
302 AliHeader* header = 0;
303 AliGenEventHeader* genHeader = 0;
310 AliDebug(AliLog::kError, "mcEvent not available");
314 // get MC event header
315 header = mcEvent->Header();
317 AliDebug(AliLog::kError, "Header not available");
321 stack = mcEvent->Stack();
323 AliDebug(AliLog::kError, "Stack not available");
328 genHeader = header->GenEventHeader();
330 AliDebug(AliLog::kError, "Could not retrieve genHeader from Header");
333 genHeader->PrimaryVertex(vtxMC);
340 AliDebug(AliLog::kError, "esdFriend not available");
346 if(!bUseMC && GetTriggerClass()) {
347 Bool_t isEventTriggered = esdEvent->IsTriggerClassFired(GetTriggerClass());
348 if(!isEventTriggered) return;
352 const AliESDVertex *vtxESD = NULL;
353 if( IsUseTrackVertex() )
356 vtxESD = esdEvent->GetPrimaryVertexTracks();
360 vtxESD = esdEvent->GetPrimaryVertexTPC();
362 if(vtxESD && (vtxESD->GetStatus()<=0)) return;
365 for (Int_t iTrack = 0; iTrack < esdEvent->GetNumberOfTracks(); iTrack++)
367 AliESDtrack *track = esdEvent->GetTrack(iTrack);
370 if(GetAnalysisMode() == 0) ProcessTPC(stack,track);
371 else if(GetAnalysisMode() == 1) ProcessTPCITS(stack,track);
372 else if(GetAnalysisMode() == 2) ProcessConstrained(stack,track);
373 else if(GetAnalysisMode() == 3) ProcessInnerTPC(stack,track,esdEvent);
375 printf("ERROR: AnalysisMode %d \n",fAnalysisMode);
381 //_____________________________________________________________________________
382 void AliPerformanceDEdx::Analyse()
384 // Analyze comparison information and store output histograms
385 // in the folder "folderDEdx"
387 TH1::AddDirectory(kFALSE);
390 TObjArray *aFolderObj = new TObjArray;
395 for(Int_t i=1; i<8; i++) {
397 h2D = (TH2F*)fDeDxHisto->Projection(0,i);
399 sprintf(name,"h_dedx_%d_vs_%d",0,i);
401 sprintf(title,"%s vs %s",fDeDxHisto->GetAxis(0)->GetTitle(),fDeDxHisto->GetAxis(i)->GetTitle());
402 h2D->SetTitle(title);
403 h2D->GetXaxis()->SetTitle(fDeDxHisto->GetAxis(i)->GetTitle());
404 h2D->GetYaxis()->SetTitle(fDeDxHisto->GetAxis(0)->GetTitle());
406 if(i==7) h2D->SetBit(TH1::kLogX);
407 aFolderObj->Add(h2D);
410 // resolution histograms for mips
411 //dedx:phi:y:z:snp:tgl:ncls:p
412 fDeDxHisto->GetAxis(2)->SetRangeUser(-15.,14.999);
413 fDeDxHisto->GetAxis(3)->SetRangeUser(-120.,119.999);
414 fDeDxHisto->GetAxis(4)->SetRangeUser(-0.4, 0.399);
415 fDeDxHisto->GetAxis(5)->SetRangeUser(-0.9,0.89);
416 fDeDxHisto->GetAxis(6)->SetRangeUser(60.,160.);
417 fDeDxHisto->GetAxis(7)->SetRangeUser(0.4,0.499);
419 h1D=(TH1F*)fDeDxHisto->Projection(0);
420 h1D->SetName("dedx_mips");
422 h1D->SetTitle("dedx_mips");
423 h1D->GetXaxis()->SetTitle(fDeDxHisto->GetAxis(0)->GetTitle());
424 aFolderObj->Add(h1D);
427 TObjArray *arr[7] = {0};
430 for(Int_t i=1; i<8; i++)
432 arr[i] = new TObjArray;
433 f1[i] = new TF1("gaus","gaus");
434 //printf("i %d \n",i);
436 h2D = (TH2F*)fDeDxHisto->Projection(0,i);
438 f1[i]->SetRange(40,60); // should be pion peak
439 h2D->FitSlicesY(f1[i],0,-1,10,"QNR",arr[i]); // gaus fit of pion peak
441 h1D = (TH1F*)arr[i]->At(1);
442 sprintf(name,"mean_dedx_mips_vs_%d",i);
444 sprintf(title,"%s vs %s","mean_dedx_mips (a.u.)",fDeDxHisto->GetAxis(i)->GetTitle());
445 h1D->SetTitle(title);
446 h1D->GetXaxis()->SetTitle(fDeDxHisto->GetAxis(i)->GetTitle());
447 h1D->GetYaxis()->SetTitle("mean_dedx_mips (a.u.)");
448 //h1D->SetMinimum(40);
449 //h1D->SetMaximum(60);
451 aFolderObj->Add(h1D);
453 h1D = (TH1F*)arr[i]->At(2);
454 sprintf(name,"res_dedx_mips_vs_%d",i);
456 sprintf(title,"%s vs %s","res_dedx_mips (a.u)",fDeDxHisto->GetAxis(i)->GetTitle());
457 h1D->SetTitle(title);
458 h1D->GetXaxis()->SetTitle(fDeDxHisto->GetAxis(i)->GetTitle());
459 h1D->GetYaxis()->SetTitle("res_dedx_mips (a.u.)");
460 //h1D->SetMinimum(0);
461 //h1D->SetMaximum(6);
463 aFolderObj->Add(h1D);
466 // export objects to analysis folder
467 fAnalysisFolder = ExportToFolder(aFolderObj);
469 // delete only TObjArray
470 if(aFolderObj) delete aFolderObj;
473 //_____________________________________________________________________________
474 TFolder* AliPerformanceDEdx::ExportToFolder(TObjArray * array)
476 // recreate folder avery time and export objects to new one
478 AliPerformanceDEdx * comp=this;
479 TFolder *folder = comp->GetAnalysisFolder();
482 TFolder *newFolder = 0;
484 Int_t size = array->GetSize();
487 // get name and title from old folder
488 name = folder->GetName();
489 title = folder->GetTitle();
495 newFolder = CreateFolder(name.Data(),title.Data());
496 newFolder->SetOwner();
498 // add objects to folder
500 newFolder->Add(array->At(i));
509 //_____________________________________________________________________________
510 TFolder* AliPerformanceDEdx::CreateFolder(TString name,TString title) {
511 // create folder for analysed histograms
513 folder = new TFolder(name.Data(),title.Data());