1 void AliVertexerTracksTest(TString outname="AliVertexerTracksTest.root",
3 Bool_t useMeanVtx=kFALSE,
9 Bool_t onlyfit=kFALSE) {
10 //------------------------------------------------------------------------
11 // Run vertex reconstruction and store results in histos and ntuple
12 //------------------------------------------------------------------------
13 // WITHOUT Kinematics.root
15 AliGeomManager::LoadGeometry("geometry.root");
18 delete AliRunLoader::Instance();
23 AliRunLoader *rl = AliRunLoader::Open("galice.root");
25 cerr<<"Can not open session"<<endl;
28 Int_t retval = rl->LoadgAlice();
30 cerr<<"LoadgAlice returned error"<<endl;
34 retval = rl->LoadHeader();
36 cerr<<"LoadHeader returned error"<<endl;
40 gAlice=rl->GetAliRun();
42 //rl->LoadKinematics();
44 // Get field from galice.root
45 AliMagF *fiel = (AliMagF*)gAlice->Field();
46 // Set the conversion constant between curvature and Pt
47 AliTracker::SetFieldMap(fiel,kTRUE);
49 //**** Switch on the PID class
52 Int_t nEvents = (Int_t)rl->GetNumberOfEvents();
57 Double_t diffX,diffY,diffZ;
58 Double_t diffXerr,diffYerr,diffZerr;
66 TH1F *hdiffX = new TH1F("hdiffX","x_{found} - x_{true} [#mum]",1000,-5000,5000);
67 TH1F *hdiffY = new TH1F("hdiffY","y_{found} - y_{true} [#mum]",1000,-5000,5000);
68 TH1F *hdiffZ = new TH1F("hdiffZ","z_{found} - z_{true} [#mum]",1000,-5000,5000);
70 TH1F *hdiffXerr = new TH1F("hdiffXerr","#Delta x/#sigma_{x}",100,-5,5);
71 TH1F *hdiffYerr = new TH1F("hdiffYerr","#Delta y/#sigma_{y}",100,-5,5);
72 TH1F *hdiffZerr = new TH1F("hdiffZerr","#Delta z/#sigma_{z}",100,-5,5);
75 TNtuple *ntVtxRes = new TNtuple("ntVtxRes","Vertex Resolution's Ntupla with multiplicity","triggered:ntracks:nitstracks:nitstracks5or6:diffX:diffY:diffZ:diffXerr:diffYerr:diffZerr:multiplicity:nc:zMC:chi2red");
79 // ----------- Create vertexer --------------------------
80 AliESDVertex *initVertex = 0;
82 // open the mean vertex
83 TFile *invtx = new TFile("AliESDVertexMean.root");
84 initVertex = (AliESDVertex*)invtx->Get("vtxmean");
88 Double_t pos[3]={0.5,0.5,0.};
89 Double_t err[3]={3.,3.,5.};
90 initVertex = new AliESDVertex(pos,err);
92 AliVertexerTracks *vertexer = new AliVertexerTracks(AliTracker::GetBz());
93 vertexer->SetDebug(1); // set to 1 to see what it does
94 vertexer->SetVtxStart(initVertex);
95 if(!useMeanVtx) vertexer->SetConstraintOff();
96 if(onlyfit) vertexer->SetOnlyFitter();
97 vertexer->SetNSigmad0(nSigma);
98 if(!itsrefit || tpconly) vertexer->SetITSrefitNotRequired();
99 vertexer->SetMinTracks(mintracks);
100 vertexer->SetMinITSClusters(minitscls);
101 vertexer->SetMaxd0z0(maxd0z0);
102 //cout<<" Nsigma: "<<vertexer->GetNSigmad0()<<endl;
103 //----------------------------------------------------------
106 if(gSystem->AccessPathName("AliESDs_itstpc.root",kFileExists)) {
107 printf("AliESDs_itstpc.root not found!\n");
110 TFile *fin = TFile::Open("AliESDs_itstpc.root");
111 AliESDEvent *esd = new AliESDEvent();
112 TTree *esdTree = (TTree*)fin->Get("esdTree");
114 esd->ReadFromTree(esdTree);
115 Int_t events = esdTree->GetEntries();
116 printf("Number of events in ESD tree: %d\n",events);
120 for(Int_t iev=0; iev<events; iev++) { //LOOP ON EVENTS
121 printf("-------------- EVENT %d --------------------\n",iev);
131 //=================================================
132 // LOOK IN THE SIMULATION
133 // true vertex position
134 Int_t npart = (Int_t)gAlice->GetEvent(iev);
135 printf("particles %d\n",npart);
136 AliHeader *header = (AliHeader*)rl->GetHeader();
137 AliGenPythiaEventHeader *pyheader = (AliGenPythiaEventHeader*)header->GenEventHeader();
138 pyheader->PrimaryVertex(o);
142 printf("True Vertex: (%f, %f, %f)\n",o[0],o[1],o[2]);
144 Double_t dNchdy = 0.;
146 Int_t nitstracks = 0;
147 Int_t nitstracks1 = 0;
148 Int_t nitstracks2 = 0;
149 Int_t nitstracks3 = 0;
150 Int_t nitstracks4 = 0;
151 Int_t nitstracks5 = 0;
152 Int_t nitstracks6 = 0;
153 Int_t nitstracks5or6 = 0;
156 esdTree->GetEvent(iev);
159 ULong64_t triggerMask = esd->GetTriggerMask();
160 if(triggerMask&32 && ((triggerMask&1) || (triggerMask&2))) triggered=1;
162 // get # of tracklets
163 AliMultiplicity *alimult = esd->GetMultiplicity();
165 ntracklets = alimult->GetNumberOfTracklets();
166 for(Int_t l=0;l<alimult->GetNumberOfTracklets();l++)
167 if(alimult->GetDeltaPhi(l)<-9998.) ntracklets--;
171 printf("Number of SPD tracklets in ESD %d : %d\n",iev,ntracklets);
172 multiplicity = (Float_t)ntracklets;
174 Int_t ntracks = esd->GetNumberOfTracks();
175 printf("Number of tracks in ESD %d : %d\n",iev,ntracks);
177 ntVtxRes->Fill(triggered,ntracks,nitstracks,nitstracks5or6,diffX,diffY,diffZ,diffXerr,diffYerr,diffZerr,multiplicity,nc,truevtx[2],chi2red);
182 AliESDVertex *vertex = 0;
184 vertex = (AliESDVertex*)vertexer->FindPrimaryVertex(esd);
186 TObjArray trkArrayOrig(ntracks);
187 UShort_t *idOrig = new UShort_t[ntracks];
188 const Double_t kRadius = 2.8; //something less than the beam pipe radius
189 const Double_t kMaxStep = 5; //max step over the material
192 for(Int_t i=0; i<ntracks; i++) {
193 AliESDtrack *esdt = esd->GetTrack(i);
194 AliExternalTrackParam *tpcTrack =
195 (AliExternalTrackParam *)esdt->GetTPCInnerParam();
199 PropagateTrackTo(tpcTrack,kRadius,esdt->GetMass(),kRadius,kTRUE);
201 trkArrayOrig.AddLast(tpcTrack);
202 idOrig[nTrksOrig]=(UShort_t)esdt->GetID();
207 vertex = (AliESDVertex*)vertexer->FindPrimaryVertex(&trkArrayOrig,idOrig);
212 nc = (Int_t)vertex->GetNContributors();
213 if(nc>=2) chi2red = vertex->GetChi2toNDF();
214 printf("nc = %d\n",nc);
218 for(Int_t itrk=0; itrk<ntracks; itrk++) {
219 AliESDtrack *esdtrack = (AliESDtrack*)esd->GetTrack(itrk);
220 UInt_t status = esdtrack->GetStatus();
221 // only tracks found also in ITS
222 if(! (status&AliESDtrack::kITSin) ) continue;
224 Int_t npts = (Int_t)esdtrack->GetNcls(0);
225 if(npts==6) {nitstracks6++;nitstracks5or6++;}
226 if(npts==5) {nitstracks5++;nitstracks5or6++;}
227 if(npts==4) nitstracks4++;
228 if(npts==3) nitstracks3++;
229 if(npts==2) nitstracks2++;
230 if(npts==1) nitstracks1++;
232 printf("Number of kITSin tracks in ESD %d : %d\n",iev,nitstracks);
233 printf(" 6 pts: %d\n",nitstracks6);
234 printf(" 5 pts: %d\n",nitstracks5);
235 printf(" 4 pts: %d\n",nitstracks4);
236 printf(" 3 pts: %d\n",nitstracks3);
237 printf(" 2 pts: %d\n",nitstracks2);
238 printf(" 1 pts: %d\n",nitstracks1);
243 vertex->GetSigmaXYZ(errvtx);
244 diffX = 10000.* (vtx[0] - truevtx[0]);
245 diffY = 10000.* (vtx[1] - truevtx[1]);
246 diffZ = 10000.* (vtx[2] - truevtx[2]);
250 diffXerr = diffX/errvtx[0]/10000.;
251 diffYerr = diffY/errvtx[1]/10000.;
252 diffZerr = diffZ/errvtx[2]/10000.;
253 hdiffXerr->Fill(diffXerr);
254 hdiffYerr->Fill(diffYerr);
255 hdiffZerr->Fill(diffZerr);
258 ntVtxRes->Fill(triggered,ntracks,nitstracks,nitstracks5or6,diffX,diffY,diffZ,diffXerr,diffYerr,diffZerr,multiplicity,(Float_t)nc,truevtx[2],chi2red);
260 } // END LOOP ON EVENTS
269 TFile *fout = new TFile(outname.Data(),"recreate");
281 //------------------------------------------------------------------------
282 void VertexForOneEvent(Int_t iev=0,
284 Bool_t useMeanVtx=kFALSE) {
285 //------------------------------------------------------------------------
286 // Run vertex reconstruction for event iev
287 //------------------------------------------------------------------------
290 delete AliRunLoader::Instance();
295 AliRunLoader *rl = AliRunLoader::Open("galice.root");
297 cerr<<"Can not open session"<<endl;
300 Int_t retval = rl->LoadgAlice();
302 cerr<<"LoadgAlice returned error"<<endl;
306 retval = rl->LoadHeader();
308 cerr<<"LoadHeader returned error"<<endl;
312 gAlice=rl->GetAliRun();
313 //rl->LoadKinematics();
314 // Get field from galice.root
315 AliMagF *fiel = (AliMagF*)gAlice->Field();
316 // Set the conversion constant between curvature and Pt
317 AliTracker::SetFieldMap(fiel,kTRUE);
322 Double_t diffX,diffY,diffZ;
323 Double_t diffXerr,diffYerr,diffZerr;
324 Double_t multiplicity;
327 // ----------- Create vertexer --------------------------
328 AliESDVertex *initVertex = 0;
330 // open the mean vertex
331 TFile *invtx = new TFile("AliESDVertexMean.root");
332 initVertex = (AliESDVertex*)invtx->Get("vtxmean");
336 Double_t pos[3]={0.,-0.,0.};
337 Double_t err[3]={3.,3.,5.};
338 initVertex = new AliESDVertex(pos,err);
340 AliVertexerTracks *vertexer = new AliVertexerTracks(AliTracker::GetBz());
341 //vertexer->SetITSrefitNotRequired();
342 vertexer->SetVtxStart(initVertex);
343 if(!useMeanVtx) vertexer->SetConstraintOff();
344 //vertexer->SetMinTracks(2);
345 //vertexer->SetNSigmad0(nSigma);
346 //cout<<" Nsigma: "<<vertexer->GetNSigmad0()<<endl;
347 //vertexer->SetFinderAlgorithm(2);
348 //vertexer->SetDCAcut(0.1); // 1 mm
349 vertexer->SetDebug(1); // set to 1 to see what it does
350 //----------------------------------------------------------
352 if(gSystem->AccessPathName("AliESDs.root",kFileExists)) {
353 printf("AliESDs.root not found!\n");
356 TFile *fin = TFile::Open("AliESDs.root");
357 AliESDEvent *esd = new AliESDEvent();
358 TTree *esdTree = (TTree*)fin->Get("esdTree");
360 esd->ReadFromTree(esdTree);
366 //=================================================
367 // LOOK IN THE SIMULATION
368 // true vertex position
369 Int_t npart = (Int_t)gAlice->GetEvent(iev);
370 printf("particles %d\n",npart);
371 AliHeader *header = (AliHeader*)rl->GetHeader();
372 AliGenPythiaEventHeader *pyheader = (AliGenPythiaEventHeader*)header->GenEventHeader();
373 pyheader->PrimaryVertex(o);
377 printf("True Vertex: (%f, %f, %f)\n",o[0],o[1],o[2]);
379 esdTree->GetEvent(iev);
380 Int_t ntracks = esd->GetNumberOfTracks();
381 printf("Number of tracks in ESD %d : %d\n",iev,ntracks);
384 AliESDVertex *vertex = (AliESDVertex*)vertexer->FindPrimaryVertex(esd);
385 nc = (Int_t)vertex->GetNContributors();
388 Int_t nitstracks = 0;
389 Int_t nitstracks1 = 0;
390 Int_t nitstracks2 = 0;
391 Int_t nitstracks3 = 0;
392 Int_t nitstracks4 = 0;
393 Int_t nitstracks5 = 0;
394 Int_t nitstracks6 = 0;
395 Int_t nitstracks5or6 = 0;
398 for(Int_t itrk=0; itrk<ntracks; itrk++) {
399 AliESDtrack *esdtrack = (AliESDtrack*)esd->GetTrack(itrk);
400 UInt_t status = esdtrack->GetStatus();
401 // only tracks found also in ITS
402 if(! (status&AliESDtrack::kITSrefit) ) continue;
404 Int_t npts = (Int_t)esdtrack->GetNcls(0);
405 if(npts==6) {nitstracks6++;nitstracks5or6++;}
406 if(npts==5) {nitstracks5++;nitstracks5or6++;}
407 if(npts==4) nitstracks4++;
408 if(npts==3) nitstracks3++;
409 if(npts==2) nitstracks2++;
410 if(npts==1) nitstracks1++;
412 printf("Number of kITSrefit tracks in ESD %d : %d\n",iev,nitstracks);
413 printf(" 6 pts: %d\n",nitstracks6);
414 printf(" 5 pts: %d\n",nitstracks5);
415 printf(" 4 pts: %d\n",nitstracks4);
416 printf(" 3 pts: %d\n",nitstracks3);
417 printf(" 2 pts: %d\n",nitstracks2);
418 printf(" 1 pts: %d\n",nitstracks1);
428 //----------------------------------------------------------------------------
429 Double_t FitFunc(Double_t *x,Double_t *par) {
430 return par[0]+par[1]/TMath::Sqrt(x[0]);
432 Int_t GetBin(Float_t mult) {
433 if(mult<5.) return 0;
434 if(mult<7.) return 1;
435 if(mult<12.) return 2;
436 if(mult<15.) return 3;
437 if(mult<22.) return 4;
440 Int_t GetBinTracklets(Float_t tracklets) {
441 if(tracklets<2.*5.) return 0;
442 if(tracklets<2.*7.) return 1;
443 if(tracklets<2.*12.) return 2;
444 if(tracklets<2.*15.) return 3;
445 if(tracklets<2.*22.) return 4;
448 Int_t GetBinZ(Float_t z) {
465 //----------------------------------------------------------------------------
466 void PlotVtxRes(TString inname="AliVertexerTracksTest.root",
467 Bool_t tpconly=kFALSE) {
468 //---------------------------------------------------------------------
469 // Plot efficiency, resolutions, pulls
470 // [at least 10k pp events are needed]
471 //---------------------------------------------------------------------
473 gStyle->SetOptStat(0);
474 gStyle->SetOptFit(10001);
478 Float_t ncminforzshift=1.;
479 Float_t maxdiffx = 1e3;
480 Float_t rangefactor=1.;
489 Float_t nESDTrks,nTrks,nTrks5or6,ntracklets;
490 Float_t diffX,diffY,diffZ,diffXerr,diffYerr,diffZerr,zMC,nc;
497 TH1F *hdx = new TH1F("hdx","",50,-600*rangefactor,600*rangefactor);
498 hdx->SetXTitle("#Delta x [#mu m]");
499 hdx->SetYTitle("events");
501 TH1F *hdy = new TH1F("hdy","",50,-600*rangefactor,600*rangefactor);
502 hdy->SetXTitle("#Delta y [#mu m]");
503 hdy->SetYTitle("events");
505 TH1F *hdz = new TH1F("hdz","",200,-600*rangefactor,600*rangefactor);
506 hdz->SetXTitle("#Delta z [#mu m]");
507 hdz->SetYTitle("events");
509 TH1F *hzMCVtx = new TH1F("hzMCVtx","events w/ vertex",30,-15,15);
510 hzMCVtx->SetXTitle("z_{true} [cm]");
511 hzMCVtx->SetYTitle("events");
514 TH1F *hzMCNoVtx = new TH1F("hzMCNoVtx","events w/o vertex",30,-15,15);
515 hzMCNoVtx->SetXTitle("z_{true} [cm]");
516 hzMCNoVtx->SetYTitle("events");
519 TH1F *hTrackletsVtx = new TH1F("hTrackletsVtx","events w/ vertex",51,-0.5,50.5);
520 hTrackletsVtx->SetXTitle("SPD tracklets");
521 hTrackletsVtx->SetYTitle("events");
523 TH1F *hTrackletsNoVtx = new TH1F("hTrackletsNoVtx","events w/o vertex",51,-0.5,50.5);
524 hTrackletsNoVtx->SetXTitle("SPD tracklets");
525 hTrackletsNoVtx->SetYTitle("events");
527 TH1F *hTracksVtx = new TH1F("hTracksVtx","events w/ vertex",51,-0.5,50.5);
528 hTracksVtx->SetXTitle("Number of reco tracks in TPC&ITS");
529 hTracksVtx->SetYTitle("events");
531 TH1F *hTracksNoVtx = new TH1F("hTracksNoVtx","events w/o vertex",51,-0.5,50.5);
532 hTracksNoVtx->SetXTitle("Number of reco tracks in TPC&ITS");
533 hTracksNoVtx->SetYTitle("events");
535 TH1F *hTracksVtx5or6 = new TH1F("hTracksVtx5or6","events w/ vertex",51,-0.5,50.5);
536 hTracksVtx5or6->SetXTitle("Number of reco tracks in TPC&ITS(cls>=5)");
537 hTracksVtx5or6->SetYTitle("events");
539 TH1F *hTracksNoVtx5or6 = new TH1F("hTracksNoVtx5or6","events w/o vertex",51,-0.5,50.5);
540 hTracksNoVtx5or6->SetXTitle("Number of reco tracks in TPC&ITS(cls>=5)");
541 hTracksNoVtx5or6->SetYTitle("events");
543 TH1F *hPullsx = new TH1F("hPullsx","",50,-7.,7.);
544 hPullsx->SetXTitle("#Delta x/#sqrt{<x,x>}");
545 hPullsx->SetYTitle("events");
547 TH1F *hPullsy = new TH1F("hPullsy","",50,-7.,7.);
548 hPullsy->SetXTitle("#Delta y/#sqrt{<y,y>}");
549 hPullsy->SetYTitle("events");
551 TH1F *hPullsz = new TH1F("hPullsz","",50,-7.,7.);
552 hPullsz->SetXTitle("#Delta z/#sqrt{<z,z>}");
553 hPullsz->SetYTitle("events");
555 TProfile *hntrackletsVSzMC = new TProfile("hntrackletsVSzMC","",30,-15,15,0,30);
556 hntrackletsVSzMC->SetXTitle("z_{true} [cm]");
557 hntrackletsVSzMC->SetYTitle("<SPD tracklets>");
559 TProfile *hnitstracksVSzMC = new TProfile("hnitstracksVSzMC","",30,-15,15,0,30);
560 hnitstracksVSzMC->SetXTitle("z_{true} [cm]");
561 hnitstracksVSzMC->SetYTitle("<tracks TPC&ITS>");
563 TProfile *hnitstracks5or6VSzMC = new TProfile("hnitstracks5or6VSzMC","",30,-15,15,0,30);
564 hnitstracks5or6VSzMC->SetXTitle("z_{true} [cm]");
565 hnitstracks5or6VSzMC->SetYTitle("<tracks TPC&ITS(cls>=5)>");
567 Double_t mult[6]={0,0,0,0,0,0};
568 Double_t mult2[6]={0,0,0,0,0,0};
569 Double_t sigmamult[6]={0,0,0,0,0,0};
570 Double_t sigmamult2[6]={0,0,0,0,0,0};
571 Double_t tottracks[6]={0,0,0,0,0,0};
572 Double_t fittrks[6]={0,0,0,0,0,0};
573 Double_t tracks[6]={0,0,0,0,0,0};
574 Double_t etracks[6]={0,0,0,0,0,0};
575 Double_t xres[6]={0,0,0,0,0,0};
576 Double_t exres[6]={0,0,0,0,0,0};
577 Double_t yres[6]={0,0,0,0,0,0};
578 Double_t eyres[6]={0,0,0,0,0,0};
579 Double_t zres[6]={0,0,0,0,0,0};
580 Double_t ezres[6]={0,0,0,0,0,0};
581 Double_t xpull[6]={0,0,0,0,0,0};
582 Double_t expull[6]={0,0,0,0,0,0};
583 Double_t ypull[6]={0,0,0,0,0,0};
584 Double_t eypull[6]={0,0,0,0,0,0};
585 Double_t zpull[6]={0,0,0,0,0,0};
586 Double_t ezpull[6]={0,0,0,0,0,0};
587 Int_t evts[6]={0,0,0,0,0,0};
588 Int_t totevts[6]={0,0,0,0,0,0};
589 Int_t vtx[6]={0,0,0,0,0,0};
590 Int_t all[6]={0,0,0,0,0,0};
591 Double_t probVtx[6]={0,0,0,0,0,0};
592 Double_t eprobVtx[6]={0,0,0,0,0,0};
597 TH1F *hdx0 = new TH1F("hdx0","x resolution - bin 0",50,-500*rangefactor,500*rangefactor);
598 TH1F *hdx1 = new TH1F("hdx1","x resolution - bin 1",50,-500*rangefactor,500*rangefactor);
599 TH1F *hdx2 = new TH1F("hdx2","x resolution - bin 2",50,-500*rangefactor,500*rangefactor);
600 TH1F *hdx3 = new TH1F("hdx3","x resolution - bin 3",50,-400*rangefactor,400*rangefactor);
601 TH1F *hdx4 = new TH1F("hdx4","x resolution - bin 4",50,-300*rangefactor,300*rangefactor);
602 TH1F *hdx5 = new TH1F("hdx5","x resolution - bin 5",50,-300*rangefactor,300*rangefactor);
603 TH1F *hdy0 = new TH1F("hdy0","y resolution - bin 0",50,-500*rangefactor,500*rangefactor);
604 TH1F *hdy1 = new TH1F("hdy1","y resolution - bin 1",50,-500*rangefactor,500*rangefactor);
605 TH1F *hdy2 = new TH1F("hdy2","y resolution - bin 2",50,-500*rangefactor,500*rangefactor);
606 TH1F *hdy3 = new TH1F("hdy3","y resolution - bin 3",50,-400*rangefactor,400*rangefactor);
607 TH1F *hdy4 = new TH1F("hdy4","y resolution - bin 4",50,-300*rangefactor,300*rangefactor);
608 TH1F *hdy5 = new TH1F("hdy5","y resolution - bin 5",50,-300*rangefactor,300*rangefactor);
609 TH1F *hdz0 = new TH1F("hdz0","z resolution - bin 0",50,-1000*rangefactor,1000*rangefactor);
610 TH1F *hdz1 = new TH1F("hdz1","z resolution - bin 1",50,-800*rangefactor,800*rangefactor);
611 TH1F *hdz2 = new TH1F("hdz2","z resolution - bin 2",50,-800*rangefactor,800*rangefactor);
612 TH1F *hdz3 = new TH1F("hdz3","z resolution - bin 3",50,-600*rangefactor,600*rangefactor);
613 TH1F *hdz4 = new TH1F("hdz4","z resolution - bin 4",50,-500*rangefactor,500*rangefactor);
614 TH1F *hdz5 = new TH1F("hdz5","z resolution - bin 5",50,-500*rangefactor,500*rangefactor);
616 TH1F *hdz_z = NULL; hdz_z = new TH1F[15];
617 for(Int_t l=0;l<15;l++) hdz_z[l] = *hdz;
620 TH1F *hpx0 = new TH1F("hpx0","x pull - bin 0",50,-7,7);
621 TH1F *hpx1 = new TH1F("hpx1","x pull - bin 1",50,-7,7);
622 TH1F *hpx2 = new TH1F("hpx2","x pull - bin 2",50,-7,7);
623 TH1F *hpx3 = new TH1F("hpx3","x pull - bin 3",50,-7,7);
624 TH1F *hpx4 = new TH1F("hpx4","x pull - bin 4",50,-7,7);
625 TH1F *hpx5 = new TH1F("hpx5","x pull - bin 5",50,-7,7);
626 TH1F *hpy0 = new TH1F("hpy0","y pull - bin 0",50,-7,7);
627 TH1F *hpy1 = new TH1F("hpy1","y pull - bin 1",50,-7,7);
628 TH1F *hpy2 = new TH1F("hpy2","y pull - bin 2",50,-7,7);
629 TH1F *hpy3 = new TH1F("hpy3","y pull - bin 3",50,-7,7);
630 TH1F *hpy4 = new TH1F("hpy4","y pull - bin 4",50,-7,7);
631 TH1F *hpy5 = new TH1F("hpy5","y pull - bin 5",50,-7,7);
632 TH1F *hpz0 = new TH1F("hpz0","z pull - bin 0",50,-7,7);
633 TH1F *hpz1 = new TH1F("hpz1","z pull - bin 1",50,-7,7);
634 TH1F *hpz2 = new TH1F("hpz2","z pull - bin 2",50,-7,7);
635 TH1F *hpz3 = new TH1F("hpz3","z pull - bin 3",50,-7,7);
636 TH1F *hpz4 = new TH1F("hpz4","z pull - bin 4",50,-7,7);
637 TH1F *hpz5 = new TH1F("hpz5","z pull - bin 5",50,-7,7);
640 TH1F *hmult = new TH1F("hmult","hmult",50,-0.5,49.5);
642 TFile *in = new TFile(inname.Data());
643 TNtuple *nt = (TNtuple*)in->Get("ntVtxRes");
644 nt->SetBranchAddress("triggered",&triggered);
645 nt->SetBranchAddress("ntracks",&nESDTrks);
646 nt->SetBranchAddress("nitstracks",&nTrks);
647 nt->SetBranchAddress("nitstracks5or6",&nTrks5or6);
648 nt->SetBranchAddress("diffX",&diffX);
649 nt->SetBranchAddress("diffY",&diffY);
650 nt->SetBranchAddress("diffZ",&diffZ);
651 nt->SetBranchAddress("diffXerr",&diffXerr);
652 nt->SetBranchAddress("diffYerr",&diffYerr);
653 nt->SetBranchAddress("diffZerr",&diffZerr);
654 nt->SetBranchAddress("multiplicity",&ntracklets);
655 nt->SetBranchAddress("zMC",&zMC);
656 nt->SetBranchAddress("nc",&nc);
657 Int_t entries = (Int_t)nt->GetEntries();
660 for(Int_t i=0; i<entries; i++) {
661 nbytes += nt->GetEvent(i);
662 // only triggered events
663 // if(triggered<0.5) continue;
664 // consider only events with zMCmin<|zMC|<zMCmax
665 if(TMath::Abs(zMC)<zMCmin || TMath::Abs(zMC)>zMCmax) continue;
667 bin = GetBinTracklets(ntracklets);
669 mult[bin] += ntracklets;
670 hmult->Fill(ntracklets);
672 hntrackletsVSzMC->Fill(zMC,ntracklets);
673 hnitstracksVSzMC->Fill(zMC,nTrks);
674 hnitstracks5or6VSzMC->Fill(zMC,nTrks5or6);
675 if(TMath::Abs(diffX) < maxdiffx) { // vtx found - closer than maxdiffx micron
677 mult2[bin] += ntracklets;
679 tottracks[bin] += nTrks;
681 if(bin==0) hdx0->Fill(diffX);
682 if(bin==1) hdx1->Fill(diffX);
683 if(bin==2) hdx2->Fill(diffX);
684 if(bin==3) hdx3->Fill(diffX);
685 if(bin==4) hdx4->Fill(diffX);
686 if(bin==5) hdx5->Fill(diffX);
687 if(bin==0) hdy0->Fill(diffY);
688 if(bin==1) hdy1->Fill(diffY);
689 if(bin==2) hdy2->Fill(diffY);
690 if(bin==3) hdy3->Fill(diffY);
691 if(bin==4) hdy4->Fill(diffY);
692 if(bin==5) hdy5->Fill(diffY);
693 if(bin==0) hdz0->Fill(diffZ);
694 if(bin==1) hdz1->Fill(diffZ);
695 if(bin==2) hdz2->Fill(diffZ);
696 if(bin==3) hdz3->Fill(diffZ);
697 if(bin==4) hdz4->Fill(diffZ);
698 if(bin==5) hdz5->Fill(diffZ);
702 if(nc>=ncminforzshift) hdz_z[zbin].Fill(diffZ);
704 hTrackletsVtx->Fill(ntracklets);
705 hTracksVtx->Fill(nTrks);
706 hTracksVtx5or6->Fill(nTrks5or6);
707 hPullsx->Fill(diffXerr);
708 hPullsy->Fill(diffYerr);
709 hPullsz->Fill(diffZerr);
710 if(bin==0) hpx0->Fill(diffXerr);
711 if(bin==1) hpx1->Fill(diffXerr);
712 if(bin==2) hpx2->Fill(diffXerr);
713 if(bin==3) hpx3->Fill(diffXerr);
714 if(bin==4) hpx4->Fill(diffXerr);
715 if(bin==5) hpx5->Fill(diffXerr);
716 if(bin==0) hpy0->Fill(diffYerr);
717 if(bin==1) hpy1->Fill(diffYerr);
718 if(bin==2) hpy2->Fill(diffYerr);
719 if(bin==3) hpy3->Fill(diffYerr);
720 if(bin==4) hpy4->Fill(diffYerr);
721 if(bin==5) hpy5->Fill(diffYerr);
722 if(bin==0) hpz0->Fill(diffZerr);
723 if(bin==1) hpz1->Fill(diffZerr);
724 if(bin==2) hpz2->Fill(diffZerr);
725 if(bin==3) hpz3->Fill(diffZerr);
726 if(bin==4) hpz4->Fill(diffZerr);
727 if(bin==5) hpz5->Fill(diffZerr);
730 hzMCNoVtx->Fill(zMC);
731 hTrackletsNoVtx->Fill(ntracklets);
732 hTracksNoVtx->Fill(nTrks);
733 hTracksNoVtx5or6->Fill(nTrks5or6);
739 for(Int_t k=0;k<6;k++) {
741 mult[k] /= totevts[k];
742 tottracks[k] /= evts[k];
743 probVtx[k] = (Double_t)vtx[k]/all[k];
744 eprobVtx[k] = (Double_t)vtx[k]/all[k]/all[k]+(Double_t)vtx[k]*vtx[k]/all[k]/all[k]/all[k];
745 eprobVtx[k] = TMath::Sqrt(eprobVtx[k]);
748 // calculate spread in multiplicity
749 for(Int_t i=0; i<entries; i++) {
750 nbytes += nt->GetEvent(i);
751 bin = GetBinTracklets(ntracklets);
752 sigmamult[bin] += (ntracklets-mult[bin])*(ntracklets-mult[bin])/totevts[bin];
753 if(diffX < 90000.) sigmamult2[bin] += (ntracklets-mult2[bin])*(ntracklets-mult2[bin])/evts[bin];
756 for(Int_t k=0;k<6;k++) {
757 sigmamult[k] = TMath::Sqrt(sigmamult[k]);
758 sigmamult2[k] = TMath::Sqrt(sigmamult2[k]);
761 // fraction of found vertices
762 Float_t frac = (Float_t)nEvVtx/(nEvVtx+nEvNoVtx);
763 printf(" Fraction of events with vertex: %f\n",frac);
767 TF1 *g = new TF1("g","gaus");
769 TF1 *line = new TF1("line","pol1");
770 line->SetLineWidth(3);
771 TF1 *func = new TF1("func",FitFunc,2,80,2);
772 func->SetLineWidth(1);
774 Double_t x1,y1,sigmafit;
780 gStyle->SetOptFit(1111);
783 TCanvas *c0 = new TCanvas("c0","c0",0,0,1000,400);
786 hntrackletsVSzMC->SetMinimum(0);
787 hntrackletsVSzMC->SetMaximum(14);
788 hntrackletsVSzMC->Draw("profs");
790 hnitstracksVSzMC->SetMinimum(0);
791 hnitstracksVSzMC->SetMaximum(14);
792 hnitstracksVSzMC->Draw("profs");
794 hnitstracks5or6VSzMC->SetMinimum(0);
795 hnitstracks5or6VSzMC->SetMaximum(14);
796 hnitstracks5or6VSzMC->Draw("profs");
799 // Tracks in ITS for events w/ and w/o vertex
800 TCanvas *c1 = new TCanvas("c1","c1",0,0,1000,500);
805 hTracksNoVtx->Draw();
807 // probability vs ntracklets
808 TCanvas *c1a = new TCanvas("c1a","c1a",0,0,500,500);
809 TH1F *hTotTracklets = (TH1F*)hTrackletsVtx->Clone("hTotTracklets");
810 hTotTracklets->Add(hTrackletsNoVtx);
811 TH1F *hProbTracklets = (TH1F*)hTrackletsVtx->Clone("hProbTracklets");
812 hProbTracklets->Divide(hTotTracklets);
813 hProbTracklets->SetYTitle("Probability");
814 hProbTracklets->SetTitle("Probability to find the vertex");
815 hProbTracklets->Draw();
817 // probability vs ntracks
818 TCanvas *c1b = new TCanvas("c1b","c1b",0,0,500,500);
819 TH1F *hTotTracks = (TH1F*)hTracksVtx->Clone("hTotTracks");
820 hTotTracks->Add(hTracksNoVtx);
821 TH1F *hProbTracks = (TH1F*)hTracksVtx->Clone("hProbTracks");
822 hProbTracks->Divide(hTotTracks);
823 hProbTracks->SetYTitle("Probability");
824 hProbTracks->SetTitle("Probability to find the vertex");
827 TCanvas *c1c = new TCanvas("c1c","c1c",0,0,500,500);
828 TH1F *hTotTracks5or6 = (TH1F*)hTracksVtx5or6->Clone("hTotTracks5or6");
829 hTotTracks5or6->Add(hTracksNoVtx5or6);
830 TH1F *hProbTracks5or6 = (TH1F*)hTracksVtx5or6->Clone("hProbTracks5or6");
831 hProbTracks5or6->Divide(hTotTracks5or6);
832 hProbTracks5or6->SetYTitle("Probability");
833 hProbTracks5or6->SetTitle("Probability to find the vertex");
834 hProbTracks5or6->Draw();
837 // probability vs zMC
838 TCanvas *c1e = new TCanvas("c1e","c1e",0,0,500,500);
839 TH1F *hTotzMC = (TH1F*)hzMCVtx->Clone("hTotzMC");
840 hTotzMC->Add(hzMCNoVtx);
841 TH1F *hProbzMC = (TH1F*)hzMCVtx->Clone("hProbzMC");
842 hProbzMC->Divide(hTotzMC);
843 hProbzMC->SetYTitle("Probability");
844 hProbzMC->SetTitle("Probability to find the vertex");
847 // Global resolutions
848 TCanvas *c2 = new TCanvas("c2","c2",0,0,1000,400);
852 g->SetRange(-1.*hdx->GetRMS(),+1.*hdx->GetRMS());
856 g->SetRange(-1.*hdy->GetRMS(),+1.*hdy->GetRMS());
860 g->SetRange(-1.*hdz->GetRMS(),+1.*hdz->GetRMS());
864 TCanvas *c4 = new TCanvas("c4","c4",0,0,1000,400);
868 g->SetRange(-3.*hPullsx->GetRMS(),+3.*hPullsx->GetRMS());
869 hPullsx->Fit("g","R");
872 g->SetRange(-3.*hPullsy->GetRMS(),+3.*hPullsy->GetRMS());
873 hPullsy->Fit("g","R");
876 g->SetRange(-3.*hPullsz->GetRMS(),+3.*hPullsz->GetRMS());
877 hPullsz->Fit("g","R");
879 // probability VS multiplicity
880 TCanvas *c5 = new TCanvas("c5","c5",0,0,600,500);
881 TH2F *fr5 = new TH2F("fr5","",2,0,80,2,0,1.1);
882 fr5->SetXTitle("SPD tracklets");
883 fr5->SetYTitle("Probability");
885 TGraphErrors *gr5 = new TGraphErrors(6,mult,probVtx,sigmamult,eprobVtx);
887 gr5->SetMarkerStyle(21);
890 // resolutions VS multiplicity
893 TCanvas *ax = new TCanvas("ax","ax",0,0,900,700);
897 g->SetRange(-3.*hdx0->GetRMS(),+3.*hdx0->GetRMS());
899 xres[0]=g->GetParameter(2);
900 exres[0]=g->GetParError(2);
903 g->SetRange(-3.*hdx1->GetRMS(),+3.*hdx1->GetRMS());
905 xres[1]=g->GetParameter(2);
906 exres[1]=g->GetParError(2);
909 g->SetRange(-3.*hdx2->GetRMS(),+3.*hdx2->GetRMS());
911 xres[2]=g->GetParameter(2);
912 exres[2]=g->GetParError(2);
915 g->SetRange(-3.*hdx3->GetRMS(),+3.*hdx3->GetRMS());
917 xres[3]=g->GetParameter(2);
918 exres[3]=g->GetParError(2);
921 g->SetRange(-3.*hdx4->GetRMS(),+3.*hdx4->GetRMS());
923 xres[4]=g->GetParameter(2);
924 exres[4]=g->GetParError(2);
927 g->SetRange(-3.*hdx5->GetRMS(),+3.*hdx5->GetRMS());
929 xres[5]=g->GetParameter(2);
930 exres[5]=g->GetParError(2);
932 TCanvas *ay = new TCanvas("ay","ay",0,0,900,700);
936 g->SetRange(-3.*hdy0->GetRMS(),+3.*hdy0->GetRMS());
938 yres[0]=g->GetParameter(2);
939 eyres[0]=g->GetParError(2);
942 g->SetRange(-3.*hdy1->GetRMS(),+3.*hdy1->GetRMS());
944 yres[1]=g->GetParameter(2);
945 eyres[1]=g->GetParError(2);
948 g->SetRange(-3.*hdy2->GetRMS(),+3.*hdy2->GetRMS());
950 yres[2]=g->GetParameter(2);
951 eyres[2]=g->GetParError(2);
954 g->SetRange(-3.*hdy3->GetRMS(),+3.*hdy3->GetRMS());
956 yres[3]=g->GetParameter(2);
957 eyres[3]=g->GetParError(2);
960 g->SetRange(-3.*hdy4->GetRMS(),+3.*hdy4->GetRMS());
962 yres[4]=g->GetParameter(2);
963 eyres[4]=g->GetParError(2);
966 g->SetRange(-3.*hdy5->GetRMS(),+3.*hdy5->GetRMS());
968 yres[5]=g->GetParameter(2);
969 eyres[5]=g->GetParError(2);
971 TCanvas *az = new TCanvas("az","az",0,0,900,700);
975 g->SetRange(-3.*hdz0->GetRMS(),+3.*hdz0->GetRMS());
977 zres[0]=g->GetParameter(2);
978 ezres[0]=g->GetParError(2);
981 g->SetRange(-3.*hdz1->GetRMS(),+3.*hdz1->GetRMS());
983 zres[1]=g->GetParameter(2);
984 ezres[1]=g->GetParError(2);
987 g->SetRange(-3.*hdz2->GetRMS(),+3.*hdz2->GetRMS());
989 zres[2]=g->GetParameter(2);
990 ezres[2]=g->GetParError(2);
993 g->SetRange(-3.*hdz3->GetRMS(),+3.*hdz3->GetRMS());
995 zres[3]=g->GetParameter(2);
996 ezres[3]=g->GetParError(2);
999 g->SetRange(-3.*hdz4->GetRMS(),+3.*hdz4->GetRMS());
1001 zres[4]=g->GetParameter(2);
1002 ezres[4]=g->GetParError(2);
1005 g->SetRange(-3.*hdz5->GetRMS(),+3.*hdz5->GetRMS());
1007 zres[5]=g->GetParameter(2);
1008 ezres[5]=g->GetParError(2);
1012 // pulls VS multiplicity
1015 TCanvas *bx = new TCanvas("bx","bx",0,0,900,700);
1019 g->SetRange(-3.*hpx0->GetRMS(),+3.*hpx0->GetRMS());
1021 xpull[0]=g->GetParameter(2);
1022 expull[0]=g->GetParError(2);
1025 g->SetRange(-3.*hpx1->GetRMS(),+3.*hpx1->GetRMS());
1027 xpull[1]=g->GetParameter(2);
1028 expull[1]=g->GetParError(2);
1031 g->SetRange(-3.*hpx2->GetRMS(),+3.*hpx2->GetRMS());
1033 xpull[2]=g->GetParameter(2);
1034 expull[2]=g->GetParError(2);
1037 g->SetRange(-3.*hpx3->GetRMS(),+3.*hpx3->GetRMS());
1039 xpull[3]=g->GetParameter(2);
1040 expull[3]=g->GetParError(2);
1043 g->SetRange(-3.*hpx4->GetRMS(),+3.*hpx4->GetRMS());
1045 xpull[4]=g->GetParameter(2);
1046 expull[4]=g->GetParError(2);
1049 g->SetRange(-3.*hpx5->GetRMS(),+3.*hpx5->GetRMS());
1051 xpull[5]=g->GetParameter(2);
1052 expull[5]=g->GetParError(2);
1054 TCanvas *by = new TCanvas("by","by",0,0,900,700);
1058 g->SetRange(-3.*hpy0->GetRMS(),+3.*hpy0->GetRMS());
1060 ypull[0]=g->GetParameter(2);
1061 eypull[0]=g->GetParError(2);
1064 g->SetRange(-3.*hpy1->GetRMS(),+3.*hpy1->GetRMS());
1066 ypull[1]=g->GetParameter(2);
1067 eypull[1]=g->GetParError(2);
1070 g->SetRange(-3.*hpy2->GetRMS(),+3.*hpy2->GetRMS());
1072 ypull[2]=g->GetParameter(2);
1073 eypull[2]=g->GetParError(2);
1076 g->SetRange(-3.*hpy3->GetRMS(),+3.*hpy3->GetRMS());
1078 ypull[3]=g->GetParameter(2);
1079 eypull[3]=g->GetParError(2);
1082 g->SetRange(-3.*hpy4->GetRMS(),+3.*hpy4->GetRMS());
1084 ypull[4]=g->GetParameter(2);
1085 eypull[4]=g->GetParError(2);
1088 g->SetRange(-3.*hpy5->GetRMS(),+3.*hpy5->GetRMS());
1090 ypull[5]=g->GetParameter(2);
1091 eypull[5]=g->GetParError(2);
1093 TCanvas *bz = new TCanvas("bz","bz",0,0,900,700);
1097 g->SetRange(-3.*hpz0->GetRMS(),+3.*hpz0->GetRMS());
1099 zpull[0]=g->GetParameter(2);
1100 ezpull[0]=g->GetParError(2);
1103 g->SetRange(-3.*hpz1->GetRMS(),+3.*hpz1->GetRMS());
1105 zpull[1]=g->GetParameter(2);
1106 ezpull[1]=g->GetParError(2);
1109 g->SetRange(-3.*hpz2->GetRMS(),+3.*hpz2->GetRMS());
1111 zpull[2]=g->GetParameter(2);
1112 ezpull[2]=g->GetParError(2);
1115 g->SetRange(-3.*hpz3->GetRMS(),+3.*hpz3->GetRMS());
1117 zpull[3]=g->GetParameter(2);
1118 ezpull[3]=g->GetParError(2);
1121 g->SetRange(-3.*hpz4->GetRMS(),+3.*hpz4->GetRMS());
1123 zpull[4]=g->GetParameter(2);
1124 ezpull[4]=g->GetParError(2);
1127 g->SetRange(-3.*hpz5->GetRMS(),+3.*hpz5->GetRMS());
1129 zpull[5]=g->GetParameter(2);
1130 ezpull[5]=g->GetParError(2);
1132 gStyle->SetOptFit(0);
1134 // res VS ntracklets
1135 TCanvas *c6 = new TCanvas("c6","c6",0,0,600,500);
1136 TH2F *fr6 = new TH2F("fr6","",2,0,80,2,0,240*rangefactor);
1137 fr6->SetXTitle("SPD tracklets");
1138 fr6->SetYTitle("#sigma [#mu m]");
1140 sigmamult2[0]=sigmamult2[1]=sigmamult2[2]=sigmamult2[3]=sigmamult2[4]=sigmamult2[5]=0.;
1141 TGraphErrors *gr6x = new TGraphErrors(6,mult2,xres,sigmamult2,exres);
1143 gr6x->SetMarkerStyle(22);
1144 //gr6x->Fit("func","E,R");
1145 TGraphErrors *gr6z = new TGraphErrors(6,mult2,zres,sigmamult2,ezres);
1147 gr6z->SetMarkerStyle(26);
1148 //gr6z->Fit("func","E,R");
1149 TLegend *leg6 = new TLegend(0.6,0.75,0.9,0.9);
1150 leg6->AddEntry(gr6x,"x/y coordinate","p");
1151 leg6->AddEntry(gr6z,"z coordinate","p");
1152 leg6->SetFillStyle(0);
1153 leg6->SetBorderSize(0);
1156 // pull VS ntracklets
1157 TCanvas *c8 = new TCanvas("c8","c8",0,0,600,500);
1158 TH2F *fr8 = new TH2F("fr8","",2,0,80,2,0,2.);
1159 fr8->SetXTitle("SPD tracklets");
1160 fr8->SetYTitle("pull");
1162 TGraphErrors *gr8x = new TGraphErrors(6,mult2,xpull,sigmamult2,expull);
1164 gr8x->SetMarkerStyle(22);
1165 TGraphErrors *gr8z = new TGraphErrors(6,mult2,zpull,sigmamult2,ezpull);
1167 gr8z->SetMarkerStyle(26);
1168 TLegend *leg8 = new TLegend(0.6,0.75,0.9,0.9);
1169 leg8->AddEntry(gr6x,"x/y coordinate","p");
1170 leg8->AddEntry(gr6z,"z coordinate","p");
1171 leg8->SetFillStyle(0);
1172 leg8->SetBorderSize(0);
1174 TLine *l8 = new TLine(0,1,80,1);
1175 l8->SetLineStyle(2);
1179 // mean z res VS zMC
1180 Float_t zmc[15]={-14,-12,-10,-8,-6,-4,-2,0,2,4,6,8,10,12,14};
1182 Float_t dzmean[15],edzmean[15];
1184 TCanvas *zz = new TCanvas("zz","zz",0,0,1000,1000);
1189 g->SetRange(-3.*hdz_z[l].GetRMS(),+3.*hdz_z[l].GetRMS());
1190 hdz_z[l].Fit("g","Q");
1191 dzmean[l]=g->GetParameter(1);
1192 edzmean[l]=g->GetParError(1);
1195 TCanvas *zzz = new TCanvas("zzz","zzz",0,0,600,500);
1196 TH2F *fr9 = new TH2F("fr9","",2,-15,15,2,-50*rangefactor,50*rangefactor);
1197 fr9->SetXTitle("z_{true} [cm]");
1198 fr9->SetYTitle("<z_{rec} - z_{true}> [#mu m]");
1200 TGraphErrors *grz = new TGraphErrors(15,zmc,dzmean,ezmc,edzmean);
1202 grz->SetMarkerStyle(20);
1207 //----------------------------------------------------------------------------
1208 void SaveFigures(TString name="dummy") {
1212 namefull = name.Data();
1213 namefull.Prepend("plots/residualsx_");
1214 namefull.Append(".gif");
1215 ax->Print(namefull.Data());
1216 namefull = name.Data();
1217 namefull.Prepend("plots/residualsx_");
1218 namefull.Append(".ps");
1219 ax->Print(namefull.Data());
1220 namefull = name.Data();
1221 namefull.Prepend("plots/residualsx_");
1222 namefull.Append(".eps");
1223 ax->Print(namefull.Data());
1224 namefull = name.Data();
1225 namefull.Prepend("plots/residualsx_");
1226 namefull.Append(".root");
1227 ax->Print(namefull.Data());
1229 namefull = name.Data();
1230 namefull.Prepend("plots/pullsx_");
1231 namefull.Append(".gif");
1232 bx->Print(namefull.Data());
1233 namefull = name.Data();
1234 namefull.Prepend("plots/pullsx_");
1235 namefull.Append(".ps");
1236 bx->Print(namefull.Data());
1237 namefull = name.Data();
1238 namefull.Prepend("plots/pullsx_");
1239 namefull.Append(".eps");
1240 bx->Print(namefull.Data());
1241 namefull = name.Data();
1242 namefull.Prepend("plots/pullsx_");
1243 namefull.Append(".root");
1244 bx->Print(namefull.Data());
1246 namefull = name.Data();
1247 namefull.Prepend("plots/residualsz_");
1248 namefull.Append(".gif");
1249 az->Print(namefull.Data());
1250 namefull = name.Data();
1251 namefull.Prepend("plots/residualsz_");
1252 namefull.Append(".ps");
1253 az->Print(namefull.Data());
1254 namefull = name.Data();
1255 namefull.Prepend("plots/residualsz_");
1256 namefull.Append(".eps");
1257 az->Print(namefull.Data());
1258 namefull = name.Data();
1259 namefull.Prepend("plots/residualsz_");
1260 namefull.Append(".root");
1261 az->Print(namefull.Data());
1263 namefull = name.Data();
1264 namefull.Prepend("plots/pullsz_");
1265 namefull.Append(".gif");
1266 bz->Print(namefull.Data());
1267 namefull = name.Data();
1268 namefull.Prepend("plots/pullsz_");
1269 namefull.Append(".ps");
1270 bz->Print(namefull.Data());
1271 namefull = name.Data();
1272 namefull.Prepend("plots/pullsz_");
1273 namefull.Append(".eps");
1274 bz->Print(namefull.Data());
1275 namefull = name.Data();
1276 namefull.Prepend("plots/pullsz_");
1277 namefull.Append(".root");
1278 bz->Print(namefull.Data());
1280 namefull = name.Data();
1281 namefull.Prepend("plots/effVSntracklets_");
1282 namefull.Append(".gif");
1283 c1a->Print(namefull.Data());
1284 namefull = name.Data();
1285 namefull.Prepend("plots/effVSntracklets_");
1286 namefull.Append(".ps");
1287 c1a->Print(namefull.Data());
1288 namefull = name.Data();
1289 namefull.Prepend("plots/effVSntracklets_");
1290 namefull.Append(".eps");
1291 c1a->Print(namefull.Data());
1292 namefull = name.Data();
1293 namefull.Prepend("plots/effVSntracklets_");
1294 namefull.Append(".root");
1295 c1a->Print(namefull.Data());
1298 namefull = name.Data();
1299 namefull.Prepend("plots/effVSnitstracks_");
1300 namefull.Append(".gif");
1301 c1b->Print(namefull.Data());
1302 namefull = name.Data();
1303 namefull.Prepend("plots/effVSnitstracks_");
1304 namefull.Append(".ps");
1305 c1b->Print(namefull.Data());
1306 namefull = name.Data();
1307 namefull.Prepend("plots/effVSnitstracks_");
1308 namefull.Append(".eps");
1309 c1b->Print(namefull.Data());
1310 namefull = name.Data();
1311 namefull.Prepend("plots/effVSnitstracks_");
1312 namefull.Append(".root");
1313 c1b->Print(namefull.Data());
1316 namefull = name.Data();
1317 namefull.Prepend("plots/effVSnitstracks5or6_");
1318 namefull.Append(".gif");
1319 c1c->Print(namefull.Data());
1320 namefull = name.Data();
1321 namefull.Prepend("plots/effVSnitstracks5or6_");
1322 namefull.Append(".ps");
1323 c1c->Print(namefull.Data());
1324 namefull = name.Data();
1325 namefull.Prepend("plots/effVSnitstracks5or6_");
1326 namefull.Append(".eps");
1327 c1c->Print(namefull.Data());
1328 namefull = name.Data();
1329 namefull.Prepend("plots/effVSnitstracks5or6_");
1330 namefull.Append(".root");
1331 c1c->Print(namefull.Data());
1334 namefull = name.Data();
1335 namefull.Prepend("plots/effVSzMC_");
1336 namefull.Append(".gif");
1337 c1e->Print(namefull.Data());
1338 namefull = name.Data();
1339 namefull.Prepend("plots/effVSzMC_");
1340 namefull.Append(".ps");
1341 c1e->Print(namefull.Data());
1342 namefull = name.Data();
1343 namefull.Prepend("plots/effVSzMC_");
1344 namefull.Append(".eps");
1345 c1e->Print(namefull.Data());
1346 namefull = name.Data();
1347 namefull.Prepend("plots/effVSzMC_");
1348 namefull.Append(".root");
1349 c1e->Print(namefull.Data());
1353 namefull = name.Data();
1354 namefull.Prepend("plots/effVSntracklets2_");
1355 namefull.Append(".gif");
1356 c5->Print(namefull.Data());
1357 namefull = name.Data();
1358 namefull.Prepend("plots/effVSntracklets2_");
1359 namefull.Append(".ps");
1360 c5->Print(namefull.Data());
1361 namefull = name.Data();
1362 namefull.Prepend("plots/effVSntracklets2_");
1363 namefull.Append(".eps");
1364 c5->Print(namefull.Data());
1365 namefull = name.Data();
1366 namefull.Prepend("plots/effVSntracklets2_");
1367 namefull.Append(".root");
1368 c5->Print(namefull.Data());
1371 namefull = name.Data();
1372 namefull.Prepend("plots/sigmaVSntracklets_");
1373 namefull.Append(".gif");
1374 c6->Print(namefull.Data());
1375 namefull = name.Data();
1376 namefull.Prepend("plots/sigmaVSntracklets_");
1377 namefull.Append(".ps");
1378 c6->Print(namefull.Data());
1379 namefull = name.Data();
1380 namefull.Prepend("plots/sigmaVSntracklets_");
1381 namefull.Append(".eps");
1382 c6->Print(namefull.Data());
1383 namefull = name.Data();
1384 namefull.Prepend("plots/sigmaVSntracklets_");
1385 namefull.Append(".root");
1386 c6->Print(namefull.Data());
1389 namefull = name.Data();
1390 namefull.Prepend("plots/pullsVSntracklets_");
1391 namefull.Append(".gif");
1392 c8->Print(namefull.Data());
1393 namefull = name.Data();
1394 namefull.Prepend("plots/pullsVSntracklets_");
1395 namefull.Append(".ps");
1396 c8->Print(namefull.Data());
1397 namefull = name.Data();
1398 namefull.Prepend("plots/pullsVSntracklets_");
1399 namefull.Append(".eps");
1400 c8->Print(namefull.Data());
1401 namefull = name.Data();
1402 namefull.Prepend("plots/pullsVSntracklets_");
1403 namefull.Append(".root");
1404 c8->Print(namefull.Data());
1409 //----------------------------------------------------------------------------
1410 void TestRmTracks(Int_t iev=0) {
1413 delete AliRunLoader::Instance();
1418 AliRunLoader *rl = AliRunLoader::Open("galice.root");
1420 cerr<<"Can not open session"<<endl;
1423 Int_t retval = rl->LoadgAlice();
1425 cerr<<"LoadgAlice returned error"<<endl;
1429 retval = rl->LoadHeader();
1431 cerr<<"LoadHeader returned error"<<endl;
1435 gAlice=rl->GetAliRun();
1436 // Get field from galice.root
1437 AliMagF *fiel = (AliMagF*)gAlice->Field();
1438 // Set the conversion constant between curvature and Pt
1439 AliTracker::SetFieldMap(fiel,kTRUE);
1441 Double_t truevtx[3];
1444 Double_t diffX,diffY,diffZ;
1445 Double_t diffXerr,diffYerr,diffZerr;
1446 Double_t multiplicity;
1449 // ----------- Create vertexer --------------------------
1450 AliESDVertex *initVertex = 0;
1451 TFile *invtx = new TFile("AliESDVertexMean.root");
1452 initVertex = (AliESDVertex*)invtx->Get("vtxmean");
1456 AliVertexerTracks *vertexer = new AliVertexerTracks(AliTracker::GetBz());
1457 vertexer->SetVtxStart(initVertex);
1458 vertexer->SetOnlyFitter();
1459 vertexer->SetDebug(0); // set to 1 to see what it does
1461 Float_t diamondxy[2];
1462 diamondxy[0]=initVertex->GetXv();
1463 diamondxy[1]=initVertex->GetYv();
1464 //----------------------------------------------------------
1466 if(gSystem->AccessPathName("AliESDs.root",kFileExists)) {
1467 printf("AliESDs.root not found!\n");
1470 TFile *fin = TFile::Open("AliESDs.root");
1471 AliESDEvent *esd = new AliESDEvent();
1472 TTree *esdTree = (TTree*)fin->Get("esdTree");
1473 if(!esdTree) return;
1474 esd->ReadFromTree(esdTree);
1481 esdTree->GetEvent(iev);
1482 Int_t ntracks = esd->GetNumberOfTracks();
1483 printf("Number of tracks in ESD %d : %d\n",iev,ntracks);
1485 // example: do vertex without tracks 1 and 2 (AliESDtrack::GetID())
1487 // 1: tell vertexer to skip those two tracks
1493 vertexer->SetSkipTracks(nskip,skipped);
1494 AliESDVertex *vertex1 = (AliESDVertex*)vertexer->FindPrimaryVertex(esd);
1495 vertex1->PrintStatus();
1496 vertex1->PrintIndices();
1500 // 2: do vertex with all tracks
1504 vertexer->SetSkipTracks(nskip,skipped);
1505 AliESDVertex *vertex2 = (AliESDVertex*)vertexer->FindPrimaryVertex(esd);
1506 vertex2->PrintStatus();
1507 vertex2->PrintIndices();
1509 // 3: now remove those two tracks from vertex2
1511 TTree *trksTree = new TTree("trksTree","tree with tracks to be removed");
1512 AliESDtrack *esdTrack = 0;
1513 trksTree->Branch("tracks","AliESDtrack",&esdTrack);
1514 AliESDtrack *et = esd->GetTrack(1);
1515 esdTrack = new AliESDtrack(*et);
1518 AliESDtrack *et = esd->GetTrack(2);
1519 esdTrack = new AliESDtrack(*et);
1522 AliVertexerTracks vt(AliTracker::GetBz());
1523 AliESDVertex *vertex3 = vt.RemoveTracksFromVertex(vertex2,trksTree,diamondxy);
1524 vertex3->PrintStatus();
1525 vertex3->PrintIndices();
1540 //----------------------------------------------------------------------------
1541 void AliComputeVtxMeanFromESD(TString file="AliESDs.root",
1542 Int_t mincontr=20) {
1543 //-----------------------------------------------------------------------
1544 // Compute weighted mean and cov. matrix from a set of AliESD
1545 //-----------------------------------------------------------------------
1547 gStyle->SetOptStat(0);
1548 //gStyle->SetOptFit(0);
1551 Double_t vtx[3],covvtx[6];
1553 AliESDEvent *esd = new AliESDEvent();
1554 AliESDVertex *vertex = 0;
1556 Int_t nc,events,total=0;
1565 Double_t sumwgtx=0.;
1566 Double_t sumwgty=0.;
1567 Double_t sumwgtz=0.;
1577 Double_t eavx,eavy,eavz,ewgtavx,ewgtavy,ewgtavz;
1579 TH1F* hx = new TH1F("hx","",200,-1000,1000);
1580 hx->SetXTitle("vertex x [#mu m]");
1581 hx->SetYTitle("events");
1582 TH1F* hy = new TH1F("hy","",200,-1000,1000);
1583 hy->SetXTitle("vertex y [#mu m]");
1584 hy->SetYTitle("events");
1585 TH1F* hz = new TH1F("hz","",200,-10,10);
1586 hz->SetXTitle("vertex z [cm]");
1587 hz->SetYTitle("events");
1590 for(Int_t i=1; i<100; i++) {
1591 TString inname="event.";
1594 inname.Append(file.Data());
1595 if(gSystem->AccessPathName(inname.Data())) continue;
1596 TFile *fin = TFile::Open(inname.Data());
1597 esdTree = (TTree*)fin->Get("esdTree");
1598 if(!esdTree) continue;
1599 esd->ReadFromTree(esdTree);
1600 events = esdTree->GetEntries();
1601 printf("Number of events in ESD tree: %d\n",events);
1604 for(Int_t iev=0; iev<events; iev++) { //LOOP ON EVENTS
1605 esdTree->GetEvent(iev);
1606 vertex = (AliESDVertex*)esd->GetPrimaryVertex();
1607 if(!vertex) continue;
1608 nc = vertex->GetNContributors();
1609 if(nc<mincontr) continue;
1610 vertex->GetXYZ(vtx);
1611 vertex->GetSigmaXYZ(errvtx);
1612 //printf("%f %f %f %f %f %f\n",vtx[0],vtx[1],vtx[2],errvtx[0],errvtx[1],errvtx[2]);
1618 wgtavx += vtx[0]/errvtx[0]/errvtx[0];
1619 wgtavy += vtx[1]/errvtx[1]/errvtx[1];
1620 wgtavz += vtx[2]/errvtx[2]/errvtx[2];
1621 sumwgtx += 1./errvtx[0]/errvtx[0];
1622 sumwgty += 1./errvtx[1]/errvtx[1];
1623 sumwgtz += 1./errvtx[2]/errvtx[2];
1625 hx->Fill(1e4*vtx[0]);
1626 hy->Fill(1e4*vtx[1]);
1642 ewgtavx = 1./TMath::Sqrt(sumwgtx);
1643 ewgtavy = 1./TMath::Sqrt(sumwgty);
1644 ewgtavz = 1./TMath::Sqrt(sumwgtz);
1647 for(Int_t i=1; i<100; i++) {
1648 TString inname="event.";
1651 inname.Append(file.Data());
1652 if(gSystem->AccessPathName(inname.Data())) continue;
1653 TFile *fin = TFile::Open(inname.Data());
1654 esdTree = (TTree*)fin->Get("esdTree");
1655 if(!esdTree) continue;
1656 esd->ReadFromTree(esdTree);
1657 events = esdTree->GetEntries();
1658 for(Int_t iev=0; iev<events; iev++) { //LOOP ON EVENTS
1659 esdTree->GetEvent(iev);
1660 vertex = (AliESDVertex*)esd->GetPrimaryVertex();
1661 if(!vertex) continue;
1662 nc = vertex->GetNContributors();
1663 if(nc<mincontr) continue;
1664 vertex->GetXYZ(vtx);
1665 vertex->GetSigmaXYZ(errvtx);
1667 varx += (vtx[0]-avx)*(vtx[0]-avx);
1668 vary += (vtx[1]-avy)*(vtx[1]-avy);
1669 varz += (vtx[2]-avz)*(vtx[2]-avz);
1670 covxy += (vtx[0]-avx)*(vtx[1]-avy);
1671 covxz += (vtx[0]-avx)*(vtx[2]-avz);
1672 covyz += (vtx[1]-avy)*(vtx[2]-avz);
1684 rmsx = TMath::Sqrt(varx);
1685 rmsy = TMath::Sqrt(vary);
1686 rmsz = TMath::Sqrt(varz);
1687 eavx = rmsx/TMath::Sqrt(sum);
1688 eavy = rmsy/TMath::Sqrt(sum);
1689 eavz = rmsz/TMath::Sqrt(sum);
1692 printf("\n\nNumber of events: Total %d, Used %d\n",total,sum);
1693 printf("Average:\n x = (%f +- %f) mum\n y = (%f +- %f) mum\n z = (%f +- %f) mu\n",1e4*avx,1e4*eavx,1e4*avy,1e4*eavy,1e4*avz,1e4*eavz);
1694 printf("Weighted Average:\n x = (%f +- %f) mum\n y = (%f +- %f) mum\n z = (%f +- %f) mum\n",1e4*wgtavx,1e4*ewgtavx,1e4*wgtavy,1e4*ewgtavy,1e4*wgtavz,1e4*ewgtavz);
1695 printf("RMS:\n x = %f mum\n y = %f mum\n z = %f mum\n",1e4*rmsx,1e4*rmsy,1e4*rmsz);
1697 TCanvas *c = new TCanvas("c","c",0,0,1000,500);
1701 TF1 *gx = new TF1("gx","gaus",-1000,1000);
1702 gx->SetLineColor(2);
1704 TF1 *gxx = (TF1*)gx->Clone("gxx");
1705 gxx->FixParameter(2,50.);
1706 gxx->SetLineStyle(2);
1710 TF1 *gy = new TF1("gy","gaus",-1000,1000);
1711 gy->SetLineColor(2);
1713 TF1 *gyy = (TF1*)gy->Clone("gyy");
1714 gyy->FixParameter(2,50.);
1715 gyy->SetLineStyle(2);
1719 TF1 *gz = new TF1("gz","gaus",-10,10);
1720 gz->SetLineColor(2);
1722 TF1 *gzz = (TF1*)gz->Clone("gzz");
1723 gzz->FixParameter(2,5.3);
1724 gzz->SetLineStyle(2);
1736 AliESDVertex *vtxmean = new AliESDVertex(vtx,covvtx,0.,(Int_t)sum);
1737 vtxmean->SetTitle("Vertex from weighted average");
1738 TFile *out = new TFile("AliESDVertexMean.root","recreate");
1739 vtxmean->Write("vtxmean");
1744 //----------------------------------------------------------------------------
1745 void AliComputeVtxMeanFromTree(TString file="AliESDVertices.root",
1746 Int_t mincontr=20) {
1747 //-----------------------------------------------------------------------
1748 // Compute weighted mean and cov. matrix from a set of AliESDVertices
1749 //-----------------------------------------------------------------------
1750 gStyle->SetOptStat(0);
1751 //gStyle->SetOptFit(0);
1754 Double_t vtx[3],covvtx[6];
1765 Double_t sumwgtx=0.;
1766 Double_t sumwgty=0.;
1767 Double_t sumwgtz=0.;
1771 Double_t eavx,eavy,eavz,ewgtavx,ewgtavy,ewgtavz;
1773 TH1F* hx = new TH1F("hx","",200,-1000,1000);
1774 hx->SetXTitle("vertex x [#mu m]");
1775 hx->SetYTitle("events");
1776 TH1F* hy = new TH1F("hy","",200,-1000,1000);
1777 hy->SetXTitle("vertex y [#mu m]");
1778 hy->SetYTitle("events");
1779 TH1F* hz = new TH1F("hz","",200,-10,10);
1780 hz->SetXTitle("vertex z [cm]");
1781 hz->SetYTitle("events");
1784 if(gSystem->AccessPathName(file.Data())) continue;
1785 TFile *fin = TFile::Open(file.Data());
1786 TTree *tree = (TTree*)fin->Get("TreeV");
1787 AliESDVertex *vertex = 0;
1788 tree->SetBranchAddress("AliESDVertex",&vertex);
1789 Int_t entries = (Int_t)tree->GetEntries();
1791 for(Int_t i=0; i<entries; i++) {
1794 nc = vertex->GetNContributors();
1795 if(nc<mincontr) continue;
1796 vertex->GetXYZ(vtx);
1797 vertex->GetSigmaXYZ(errvtx);
1798 //printf("%f %f %f %f %f %f\n",vtx[0],vtx[1],vtx[2],errvtx[0],errvtx[1],errvtx[2]);
1804 wgtavx += vtx[0]/errvtx[0]/errvtx[0];
1805 wgtavy += vtx[1]/errvtx[1]/errvtx[1];
1806 wgtavz += vtx[2]/errvtx[2]/errvtx[2];
1807 sumwgtx += 1./errvtx[0]/errvtx[0];
1808 sumwgty += 1./errvtx[1]/errvtx[1];
1809 sumwgtz += 1./errvtx[2]/errvtx[2];
1811 hx->Fill(1e4*vtx[0]);
1812 hy->Fill(1e4*vtx[1]);
1824 ewgtavx = 1./TMath::Sqrt(sumwgtx);
1825 ewgtavy = 1./TMath::Sqrt(sumwgty);
1826 ewgtavz = 1./TMath::Sqrt(sumwgtz);
1829 for(Int_t i=0; i<entries; i++) {
1831 nc = vertex->GetNContributors();
1832 if(nc<mincontr) continue;
1833 vertex->GetXYZ(vtx);
1834 vertex->GetSigmaXYZ(errvtx);
1836 varx += (vtx[0]-avx)*(vtx[0]-avx);
1837 vary += (vtx[1]-avy)*(vtx[1]-avy);
1838 varz += (vtx[2]-avz)*(vtx[2]-avz);
1839 covxy += (vtx[0]-avx)*(vtx[1]-avy);
1840 covxz += (vtx[0]-avx)*(vtx[2]-avz);
1841 covyz += (vtx[1]-avy)*(vtx[2]-avz);
1852 rmsx = TMath::Sqrt(varx);
1853 rmsy = TMath::Sqrt(vary);
1854 rmsz = TMath::Sqrt(varz);
1855 eavx = rmsx/TMath::Sqrt(sum);
1856 eavy = rmsy/TMath::Sqrt(sum);
1857 eavz = rmsz/TMath::Sqrt(sum);
1860 printf("\n\nNumber of events: Total %d, Used %d\n",total,sum);
1861 printf("Average:\n x = (%f +- %f) mum\n y = (%f +- %f) mum\n z = (%f +- %f) mu\n",1e4*avx,1e4*eavx,1e4*avy,1e4*eavy,1e4*avz,1e4*eavz);
1862 printf("Weighted Average:\n x = (%f +- %f) mum\n y = (%f +- %f) mum\n z = (%f +- %f) mum\n",1e4*wgtavx,1e4*ewgtavx,1e4*wgtavy,1e4*ewgtavy,1e4*wgtavz,1e4*ewgtavz);
1863 printf("RMS:\n x = %f mum\n y = %f mum\n z = %f mum\n",1e4*rmsx,1e4*rmsy,1e4*rmsz);
1865 TCanvas *c = new TCanvas("c","c",0,0,1000,500);
1869 TF1 *gx = new TF1("gx","gaus",-1000,1000);
1870 gx->SetLineColor(2);
1872 TF1 *gxx = (TF1*)gx->Clone("gxx");
1873 gxx->FixParameter(2,50.);
1874 gxx->SetLineStyle(2);
1878 TF1 *gy = new TF1("gy","gaus",-1000,1000);
1879 gy->SetLineColor(2);
1881 TF1 *gyy = (TF1*)gy->Clone("gyy");
1882 gyy->FixParameter(2,50.);
1883 gyy->SetLineStyle(2);
1887 TF1 *gz = new TF1("gz","gaus",-10,10);
1888 gz->SetLineColor(2);
1890 TF1 *gzz = (TF1*)gz->Clone("gzz");
1891 gzz->FixParameter(2,5.3);
1892 gzz->SetLineStyle(2);
1904 AliESDVertex *vtxmean = new AliESDVertex(vtx,covvtx,0.,(Int_t)sum);
1905 vtxmean->SetTitle("Vertex from weighted average");
1906 TFile *out = new TFile("AliESDVertexMean.root","recreate");
1907 vtxmean->Write("vtxmean");
1912 //---------------------------------------------------------------------------