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Fix (Francesco) + updates in check origin (Sandro)
[u/mrichter/AliRoot.git] / PWGHF / correlationHF / AliAnalysisTaskDStarCorrelations.cxx
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815e6bab 1/**************************************************************************
2 * Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15//
16//
17// Base class for DStar - Hadron Correlations Analysis
18//
19//-----------------------------------------------------------------------
20//
21//
22// Author S.Bjelogrlic
23// Utrecht University
24// sandro.bjelogrlic@cern.ch
25//
26//-----------------------------------------------------------------------
27
28/* $Id$ */
29
30#include <TDatabasePDG.h>
31#include <TParticle.h>
32#include <TVector3.h>
33#include <TChain.h>
34#include "TROOT.h"
35
36#include "AliAnalysisTaskDStarCorrelations.h"
37#include "AliRDHFCutsDStartoKpipi.h"
38#include "AliHFAssociatedTrackCuts.h"
39#include "AliAODRecoDecay.h"
40#include "AliAODRecoCascadeHF.h"
41#include "AliAODRecoDecayHF2Prong.h"
42#include "AliAODPidHF.h"
43#include "AliEventPoolManager.h"
44#include "AliVParticle.h"
45#include "AliAnalysisManager.h"
46#include "AliAODInputHandler.h"
47#include "AliAODHandler.h"
48#include "AliESDtrack.h"
49#include "AliAODMCParticle.h"
50#include "AliNormalizationCounter.h"
51#include "AliReducedParticle.h"
52
53
54
55ClassImp(AliAnalysisTaskDStarCorrelations)
56
57
58//__________________________________________________________________________
59AliAnalysisTaskDStarCorrelations::AliAnalysisTaskDStarCorrelations() :
60AliAnalysisTaskSE(),
61fhandler(0x0),
62fPoolMgr(0x0),
63fmcArray(0x0),
64fCounter(0x0),
65fselect(0),
66fmontecarlo(kFALSE),
67fmixing(kFALSE),
68fEvents(0),
69fDebug(0),
70
71fOutput(0x0),
72fCuts(0),
73fCuts2(0)
74{
75// default constructor
76}
77
78//__________________________________________________________________________
79AliAnalysisTaskDStarCorrelations::AliAnalysisTaskDStarCorrelations(const Char_t* name,AliRDHFCutsDStartoKpipi* cuts, AliHFAssociatedTrackCuts *AsscCuts) :
80AliAnalysisTaskSE(name),
81
82fhandler(0x0),
83fPoolMgr(0x0),
84fmcArray(0x0),
85fCounter(0x0),
86fselect(0),
87fmontecarlo(kFALSE),
88fmixing(kFALSE),
89fEvents(0),
90fDebug(0),
91
92fOutput(0x0),
93fCuts(0),
94fCuts2(AsscCuts)
95{
96 fCuts=cuts;
97 Info("AliAnalysisTaskDStarCorrelations","Calling Constructor");
98 DefineInput(0, TChain::Class());
99 DefineOutput(1,TList::Class()); // histos from data
100 DefineOutput(2,AliRDHFCutsDStartoKpipi::Class()); // my cuts
101 DefineOutput(3,AliNormalizationCounter::Class()); // normalization
102 DefineOutput(4,AliHFAssociatedTrackCuts::Class()); // my cuts
103}
104
105//__________________________________________________________________________
106
107AliAnalysisTaskDStarCorrelations::~AliAnalysisTaskDStarCorrelations() {
108 //
109 // destructor
110 //
111
112 Info("AliAnalysisTaskDStarCorrelations","Calling Destructor");
113
114 if(fhandler) {delete fhandler; fhandler = 0;}
115 if(fPoolMgr) {delete fPoolMgr; fPoolMgr = 0;}
116 if(fmcArray) {delete fmcArray; fmcArray = 0;}
117 if(fCounter) {delete fCounter; fCounter = 0;}
118 if(fOutput) {delete fOutput; fOutput = 0;}
119 if(fCuts) {delete fCuts; fCuts = 0;}
120 if(fCuts2) {delete fCuts2; fCuts2=0;}
121
122}
123
124//___________________________________________________________
125void AliAnalysisTaskDStarCorrelations::Init(){
126 //
127 // Initialization
128 //
129 if(fDebug > 1) printf("AliAnalysisTaskDStarCorrelations::Init() \n");
130
131 AliRDHFCutsDStartoKpipi* copyfCuts=new AliRDHFCutsDStartoKpipi(*fCuts);
132 // Post the D* cuts
133 PostData(2,copyfCuts);
134
135 // Post the hadron cuts
136 PostData(4,fCuts2);
137
138 return;
139}
140
141
142//_________________________________________________
143void AliAnalysisTaskDStarCorrelations::UserCreateOutputObjects(){
144 Info("UserCreateOutputObjects","CreateOutputObjects of task %s\n", GetName());
145
146 //slot #1
147 //OpenFile(0);
148 fOutput = new TList();
149 fOutput->SetOwner();
150
151 // define histograms
152 DefineHistoForAnalysis();
153
154 fCounter = new AliNormalizationCounter(Form("%s",GetOutputSlot(3)->GetContainer()->GetName()));
155 fCounter->Init();
156
157
158 // definition of the Pool Manager for Event Mixing
159
160 Int_t MaxNofEvents = 200;
161 Int_t MinNofTracks = 1000;
162
163 Int_t NofMultiplicityBins = 5;
164 Double_t MBins[]={0,20,40,60,80,500};
165 Double_t * MultiplicityBins = MBins;
166
167 Int_t NofZVrtxBins = 5;
168 Double_t ZBins[]={-10,-5,-2.5,2.5,5,10};
169 Double_t *ZVrtxBins = ZBins;
170
171
172 fPoolMgr = new AliEventPoolManager(MaxNofEvents, MinNofTracks, NofMultiplicityBins, MultiplicityBins, NofZVrtxBins, ZVrtxBins);
173
174
175}
176//_________________________________________________
177void AliAnalysisTaskDStarCorrelations::UserExec(Option_t *){
178
179 cout << " " << endl;
180 cout << "=================================================================================" << endl;
181
182if(fselect==1) cout << "TASK::Correlation with hadrons "<< endl;
183if(fselect==2) cout << "TASK::Correlation with kaons "<< endl;
184if(fselect==3) cout << "TASK::Correlation with kzeros "<< endl;
185
186 if (!fInputEvent) {
187 Error("UserExec","NO EVENT FOUND!");
188 return;
189 }
190
191 AliAODEvent* aodEvent = dynamic_cast<AliAODEvent*>(fInputEvent);
192 Double_t pi = TMath::Pi();
193
194 fEvents++; // event counter
195 ((TH1D*)fOutput->FindObject("NofEvents"))->Fill(0);
196
197 fmcArray = dynamic_cast<TClonesArray*>(aodEvent->FindListObject(AliAODMCParticle::StdBranchName()));
198
199 // initialize the pool for event mixing
200 Int_t multiplicity = aodEvent->GetNTracks();
201 AliAODVertex *vtx = aodEvent->GetPrimaryVertex();
202 Double_t zvertex = vtx->GetZ();
203 Double_t multip = multiplicity;
204
205 if(TMath::Abs(zvertex)>=10 || multip>500 || multip == 0) {
206 AliInfo(Form("Event with Zvertex = %.2f cm and multiplicity = %.0f out of pool bounds, SKIPPING",zvertex,multip));
207 return;
208 }
209
210
211 AliEventPool* pool = fPoolMgr->GetEventPool(multip, zvertex);
212 if (!pool) AliFatal(Form("No pool found for multiplicity = %f, zVtx = %f cm", multip, zvertex));
213
214
215
216 // D* reconstruction
217
218 TClonesArray *arrayDStartoD0pi=0;
219
220
221 if(!aodEvent && AODEvent() && IsStandardAOD()) {
222 // In case there is an AOD handler writing a standard AOD, use the AOD
223 // event in memory rather than the input (ESD) event.
224 aodEvent = dynamic_cast<AliAODEvent*> (AODEvent());
225 // in this case the braches in the deltaAOD (AliAOD.VertexingHF.root)
226 // have to taken from the AOD event hold by the AliAODExtension
227 AliAODHandler* aodHandler = (AliAODHandler*)
228 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
229 if(aodHandler->GetExtensions()) {
230 AliAODExtension *ext = (AliAODExtension*)aodHandler->GetExtensions()->FindObject("AliAOD.VertexingHF.root");
231 AliAODEvent *aodFromExt = ext->GetAOD();
232 arrayDStartoD0pi=(TClonesArray*)aodFromExt->GetList()->FindObject("Dstar");
233 }
234 } else {
235 arrayDStartoD0pi=(TClonesArray*)aodEvent->GetList()->FindObject("Dstar");
236 }
237
238 if(!aodEvent->GetPrimaryVertex() || TMath::Abs(aodEvent->GetMagneticField())<0.001) return;
239
240 // initialize variables you will need for the D*
241
242 Double_t ptDStar;//
243 Double_t phiDStar;//
244 Double_t etaDStar;//
245 Bool_t isInPeak, isInSideBand, isDStarMCtag;
246 Double_t invMassDZero;
247 Double_t deltainvMDStar;
248
249
250 Double_t mPDGD0=TDatabasePDG::Instance()->GetParticle(421)->Mass();
251 Double_t mPDGDstar=TDatabasePDG::Instance()->GetParticle(413)->Mass();
252
253
254
255 if(fselect ==3){// check the K0 invariant mass
256 TObjArray * fillkzerospectra = AcceptAndReduceKZero(aodEvent, 0,0);
257 delete fillkzerospectra;
258 }
259
260 //MC tagging for DStar
261 //D* and D0 prongs needed to MatchToMC method
262 Int_t pdgDgDStartoD0pi[2]={421,211};
263 Int_t pdgDgD0toKpi[2]={321,211};
264
265 //loop on D* candidates
266 for (Int_t iDStartoD0pi = 0; iDStartoD0pi<arrayDStartoD0pi->GetEntriesFast(); iDStartoD0pi++) {
267 isInPeak = kFALSE;
268 isInSideBand = kFALSE;
269 isDStarMCtag = kFALSE;
270 ptDStar = -123.4;
271 phiDStar = -999;
272 etaDStar = -56.;
273 invMassDZero = - 999;
274 deltainvMDStar = -998;
275
276
277
278 AliAODRecoCascadeHF* dstarD0pi = (AliAODRecoCascadeHF*)arrayDStartoD0pi->At(iDStartoD0pi);
279 if(!dstarD0pi->GetSecondaryVtx()) continue;
280 AliAODRecoDecayHF2Prong* theD0particle = (AliAODRecoDecayHF2Prong*)dstarD0pi->Get2Prong();
281 if (!theD0particle) continue;
282
283 // track quality cuts
284 Int_t isTkSelected = fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kTracks); // quality cuts on tracks
285 // region of interest + topological cuts + PID
286 Int_t isSelected=fCuts->IsSelected(dstarD0pi,AliRDHFCuts::kCandidate); //selected
287
288 //apply selections
289 if(!isTkSelected) continue;
290 if(!isSelected) continue;
291 if(!fCuts->IsInFiducialAcceptance(dstarD0pi->Pt(),dstarD0pi->YDstar())) continue;
292
293 if(fmontecarlo){
294 // find associated MC particle for D* ->D0toKpi
295 Int_t mcLabelDStar = dstarD0pi->MatchToMC(413,421,pdgDgDStartoD0pi,pdgDgD0toKpi,fmcArray);
296 if(mcLabelDStar>=0) isDStarMCtag = kTRUE;
297 }
298
299 ptDStar = dstarD0pi->Pt();
300 phiDStar = dstarD0pi->Phi();
301 etaDStar = dstarD0pi->Eta();
302
303 Int_t ptbin=fCuts->PtBin(dstarD0pi->Pt());
304
305 Double_t dmDStarWindow =0.0019;// 0.0019 = 3 sigma
306 Double_t mD0Window=0.074;
307
308 if (ptbin==1) mD0Window = 0.026; //0.5-1
309 if (ptbin==2) mD0Window = 0.022; //1-2
310 if (ptbin==3) mD0Window = 0.024; //2-3
311 if (ptbin==4) mD0Window = 0.032;
312 if (ptbin==5) mD0Window = 0.032;
313 if (ptbin==6) mD0Window = 0.036;
314 if (ptbin==7) mD0Window = 0.036;
315 if (ptbin==8) mD0Window = 0.036;
316 if (ptbin==9) mD0Window = 0.058;
317 if (ptbin==10) mD0Window = 0.058;
318 if (ptbin>10) mD0Window = 0.074;
319
320
321 invMassDZero = dstarD0pi->InvMassD0();
322 ((TH2F*)fOutput->FindObject("D0InvMass"))->Fill(ptDStar,invMassDZero);
323
324 deltainvMDStar = dstarD0pi->DeltaInvMass();
325
326
327
328 //good candidates
329 if (TMath::Abs(invMassDZero-mPDGD0)<mD0Window){
330
331 ((TH2F*)fOutput->FindObject("DeltaInvMass"))->Fill(ptDStar,deltainvMDStar);
332 if(TMath::Abs(deltainvMDStar-(mPDGDstar-mPDGD0))<dmDStarWindow){ // is in DStar peak region?
333
334 ((TH1F*)fOutput->FindObject("RecoPtDStar"))->Fill(ptDStar);
335 isInPeak = kTRUE;
336 }
337 }// end if good candidates
338
339 //sidebands
340 if (TMath::Abs(invMassDZero-mPDGD0)>1.3*mD0Window && TMath::Abs(invMassDZero-mPDGD0)<4.*mD0Window ){
341 ((TH2F*)fOutput->FindObject("bkgDeltaInvMass"))->Fill(ptDStar,deltainvMDStar);
342 ((TH2F*)fOutput->FindObject("D0InvMassinSB"))->Fill(ptDStar,invMassDZero);
343
344 if(TMath::Abs(deltainvMDStar-(mPDGDstar-mPDGD0))<dmDStarWindow){ // is in DStar peak region?
345 ((TH1F*)fOutput->FindObject("RecoPtBkg"))->Fill(ptDStar);
346 isInSideBand = kTRUE;
347 }
348
349 }//end if sidebands
350
351
352
353 if(!isInPeak && !isInSideBand) continue; // skip if it is not side band or peak event - SAVE CPU TIME
354
355
356 Int_t trackiddaugh0 = ((AliAODTrack*)theD0particle->GetDaughter(0))->GetID();
357 Int_t trackiddaugh1 = ((AliAODTrack*)theD0particle->GetDaughter(1))->GetID();
358 Int_t trackidsoftPi = ((AliAODTrack*)dstarD0pi->GetBachelor())->GetID();
359
360 ptDStar = dstarD0pi->Pt();
361 phiDStar = dstarD0pi->Phi();
362 etaDStar = dstarD0pi->Eta();
363
364 if(!fmixing){ // analysis on Single Event
365
366 TObjArray* selectedtracks = new TObjArray();
367 if(fselect==1 || fselect ==2) selectedtracks = AcceptAndReduceTracks(aodEvent);
368 if(fselect==3) {cout << " 2 "<< endl; selectedtracks = AcceptAndReduceKZero(aodEvent,iDStartoD0pi,1);}
369 Int_t noftracks = selectedtracks->GetEntriesFast();
370 Int_t counterPeak =0;
371 Int_t counterSB = 0;
372
373 for(Int_t i =0; i<noftracks; i++){ // loop on tracks/k0 candidates in aod event
374
375 AliReducedParticle *redpart = (AliReducedParticle*)selectedtracks->At(i);
376 Double_t phiHad=redpart->Phi();
377
378 Double_t ptHad=redpart->Pt();
379 Double_t etaHad=redpart->Eta();
380
381 Int_t label = redpart->GetLabel();
382
383 Int_t trackid = redpart->GetID();
384
385
386 // check that the track is not a D* daughter
387 if(trackid == trackiddaugh0) continue;
388 if(trackid == trackiddaugh1) continue;
389 if(trackid == trackidsoftPi) continue;
390
391 if(fmontecarlo && isDStarMCtag){ // check correlations of MC tagged DStars in MonteCarlo
392
393 Int_t PartSource = fCuts2->IsMCpartFromHF(label,fmcArray); // check source of associated particle (hadron/kaon/K0)
394
395 FillMCTagCorrelations(ptDStar,phiDStar,etaDStar,ptHad,phiHad,etaHad,PartSource);
396 }
397 if(isInPeak) {
398 FillCorrelations(ptDStar,phiDStar,etaDStar,phiHad,etaHad);// function for correlations
399 counterPeak++;
400 if (phiDStar > 1.5*pi) phiDStar = phiDStar - 2*pi;
401 if (phiDStar < -0.5*pi) phiDStar = phiDStar + 2*pi;
402
403 ((TH1F*)fOutput->FindObject("PhiTrigger"))->Fill(phiDStar);
404
405
406
407 if (phiHad > 1.5*pi) phiHad = phiHad - 2*pi;
408 if (phiHad < -0.5*pi) phiHad = phiHad + 2*pi;
409 ((TH1F*)fOutput->FindObject("PhiPart"))->Fill(phiHad);
410
411 }
412 cout << "fill6" << endl;
413 if(isInSideBand) {
414
415 FillSideBandCorrelations(ptDStar,phiDStar,etaDStar,phiHad,etaHad); // function for sidebands
416 if (phiDStar > 1.5*pi) phiDStar = phiDStar - 2*pi;
417 if (phiDStar < -0.5*pi) phiDStar = phiDStar + 2*pi;
418 ((TH1F*)fOutput->FindObject("PhiSideBand"))->Fill(phiDStar);
419
420 counterSB++;
421 }
422 cout << "fill7" << endl;
423 } // end loop on tracks
424
425 if(counterPeak) ((TH1D*)fOutput->FindObject("NofTracksInPeak"))->Fill(counterPeak);
426 if(counterSB) ((TH1D*)fOutput->FindObject("NofTracksInSB"))->Fill(counterSB);
427
428
429
430
431 } // end if SE Analysis
432
433 if(fmixing) { // analysis on Mixed Events
434 if (pool->IsReady()|| pool->GetCurrentNEvents()>=5){ // check if the pool is ready
435
436 pool->PrintInfo();
437
438 Int_t multbinflag = pool->MultBinIndex();
439 Int_t zvtxflag = pool->ZvtxBinIndex();
440
441 if(isInPeak){ cout << "check 1" << endl;
442 ((TH2I*)fOutput->FindObject("EventMixingCheck"))->Fill(multbinflag,zvtxflag);
443 cout << "filling" << endl;}
444
445 TObjArray* mixedtracks = new TObjArray();
446
447 for (Int_t jMix=0; jMix<pool->GetCurrentNEvents(); jMix++) {//loop over the events in the pool
448 mixedtracks = pool->GetEvent(jMix);
449 if(!mixedtracks) cout << "No Mixed tracks " << endl;
450 Int_t jMax = mixedtracks->GetEntriesFast();
451
452 for(Int_t iMix =0; iMix<jMax; iMix++){ //loop on the tracks of the event
453 AliVParticle *redpart = (AliVParticle*)mixedtracks->At(iMix);
454 Double_t phiHad=redpart->Phi();
455 Double_t etaHad=redpart->Eta();
456 Double_t ptHad=redpart->Pt();
457 Int_t label = redpart->GetLabel();
458
459
460 if(fmontecarlo && isDStarMCtag){ // check correlations of MC tagged DStars in MonteCarlo
461
462 Int_t PartSource = fCuts2->IsMCpartFromHF(label,fmcArray); // check source of associated particle (hadron/kaon/K0)
463
464 FillMCTagCorrelations(ptDStar,phiDStar,etaDStar,ptHad,phiHad,etaHad,PartSource);
465 }
466
467 if(isInPeak) {
468 FillCorrelations(ptDStar,phiDStar,etaDStar,phiHad,etaHad);// function for correlations
469
470 if (phiDStar > 1.5*pi) phiDStar = phiDStar - 2*pi;
471 if (phiDStar < -0.5*pi) phiDStar = phiDStar + 2*pi;
472
473 ((TH1F*)fOutput->FindObject("PhiTrigger"))->Fill(phiDStar);
474 if (phiHad > 1.5*pi) phiHad = phiHad - 2*pi;
475 if (phiHad < -0.5*pi) phiHad = phiHad + 2*pi;
476 ((TH1F*)fOutput->FindObject("PhiPart"))->Fill(phiHad);
477
478
479
480 }
481
482 if(isInSideBand) FillSideBandCorrelations(ptDStar,phiDStar,etaDStar,phiHad,etaHad); // function for sidebands
483
484 } // end loop on tracks
485 }// end loop on events in pool
486 } // end if pool is ready
487
488 } // end ME analysis
489
490 }// end loop on D* candidates
491
492 if(fmixing) { // update the pool for Event Mixing
493 if(fselect==1 || fselect==2)pool->UpdatePool(AcceptAndReduceTracks(aodEvent)); // updating the pool for hadrons
494 if(fselect==3) pool->UpdatePool(AcceptAndReduceKZero(aodEvent,0,0)); // updating the pool for K0s
495 }
496 //cout << ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> END OF THE EVENT <<<<<<<<<<<<<<<<<<<<<<<<<<<<<" << endl;
497
498 PostData(1,fOutput); // set the outputs
499 PostData(3,fCounter); // set the outputs
500
501} //end the exec
502
503//________________________________________ terminate ___________________________
504void AliAnalysisTaskDStarCorrelations::Terminate(Option_t*)
505{
506 // The Terminate() function is the last function to be called during
507 // a query. It always runs on the client, it can be used to present
508 // the results graphically or save the results to file.
509
510 AliAnalysisTaskSE::Terminate();
511
512 fOutput = dynamic_cast<TList*> (GetOutputData(1));
513 if (!fOutput) {
514 printf("ERROR: fOutput not available\n");
515 return;
516 }
517
518 return;
519}
520
521
522//_____________________________________________________
523TObjArray* AliAnalysisTaskDStarCorrelations::AcceptAndReduceTracks(AliAODEvent* inputEvent){
524
525 Int_t nTracks = inputEvent->GetNTracks();
526 AliAODVertex * vtx = inputEvent->GetPrimaryVertex();
527 Double_t Bz = inputEvent->GetMagneticField();
528
529
530 TObjArray* tracksClone = new TObjArray;
531 tracksClone->SetOwner(kTRUE);
532 for (Int_t iTrack=0; iTrack<nTracks; ++iTrack) {
533 AliAODTrack* track = inputEvent->GetTrack(iTrack);
534 if (! track) continue;
535
536 if(!fCuts2->IsHadronSelected(track,vtx,Bz)) continue; // apply selection of hadrons
537
538
539 if(fselect ==2){
540 if(!fCuts2->CheckKaonCompatibility(track,fmontecarlo,fmcArray)) continue; // check if it is a Kaon - data and MC
541 }
542
543 AliVParticle * part = (AliVParticle*)track;
544 tracksClone->Add(new AliReducedParticle(part->Eta(), part->Phi(), part->Pt(),track->GetLabel(),track->GetID()));
545
546 }
547 return tracksClone;
548}
549
550//_____________________________________________________
551TObjArray* AliAnalysisTaskDStarCorrelations::AcceptAndReduceKZero(AliAODEvent* inputEvent, Int_t loopindex, Int_t plotassociation){
552
553 Int_t nOfVZeros = inputEvent->GetNumberOfV0s();
554 TObjArray* KZeroClone = new TObjArray;
555 AliAODVertex *vertex1 = (AliAODVertex*)inputEvent->GetPrimaryVertex();
556 Int_t v0label = -1;
557 Int_t pdgDgK0toPipi[2] = {211,211};
558 Double_t mPDGK0=TDatabasePDG::Instance()->GetParticle(310)->Mass();
559 const Int_t size = inputEvent->GetNumberOfV0s();
560 Int_t prevnegID[size];
561 Int_t prevposID[size];
562 for(Int_t iv0 =0; iv0< nOfVZeros; iv0++){// loop on all v0 candidates
563 AliAODv0 *v0 = (static_cast<AliAODEvent*> (inputEvent))->GetV0(iv0);
564 if(!v0) {cout << "is not a v0 at step " << iv0 << endl; continue;}
565
566 if(!fCuts2->IsKZeroSelected(v0,vertex1)) continue; // check if it is a k0
567
568 // checks to avoid double counting
569 Int_t negID = -999;
570 Int_t posID = -998;
571 //Int_t a = 0;
572 prevnegID[iv0] = -997;
573 prevposID[iv0]= -996;
574 negID = v0->GetNegID();
575 posID = v0->GetPosID();
576 Bool_t DoubleCounting = kFALSE;
577
578 for(Int_t k=0; k<iv0; k++){
579 if(((negID==prevnegID[k])&&(posID==prevposID[k]))||((negID==prevposID[k])&&(posID==prevnegID[k]))){
580 DoubleCounting = kTRUE;
581 //a=k;
582 break;
583 }//end if
584 } // end for
585
586 if(DoubleCounting) {cout << "SKIPPING DOUBLE COUNTING" << endl;continue;}
587 else{ prevposID[iv0] = posID; prevnegID[iv0] = negID;}
588
589 if(fmontecarlo) v0label = v0->MatchToMC(310,fmcArray, 0, pdgDgK0toPipi); //match a K0 short
590 Double_t k0pt = v0->Pt();
591 Double_t k0eta = v0->Eta();
592 Double_t k0Phi = v0->Phi();
593 Double_t k0InvMass = v0->MassK0Short();
594
595 if (loopindex == 0) {
596 if(!plotassociation) ((TH2F*)fOutput->FindObject("KZeroSpectra"))->Fill(k0InvMass,k0pt); // spectra for all k0
597 if(plotassociation) ((TH2F*)fOutput->FindObject("KZeroSpectraifHF"))->Fill(k0InvMass,k0pt); // spectra for k0 in association with a D*
598 }
599 // if there are more D* candidates per event, loopindex == 0 makes sure you fill the mass spectra only once!
600
601 if(TMath::Abs(k0InvMass-mPDGK0)>3*0.004) continue; // select candidates within 3 sigma
602 KZeroClone->Add(new AliReducedParticle(k0eta , k0Phi, k0pt,v0label,0));
603
604 }
605
606 return KZeroClone;
607}
608
609//_____________________________________________________
610void AliAnalysisTaskDStarCorrelations::DefineHistoForAnalysis(){
611
612 Double_t Pi = TMath::Pi();
613 Int_t nbinscorr = 32;
614 Double_t lowcorrbin = -0.5*Pi - Pi/32; // shift the bin by half the width so that at 0 is it the bin center
615 Double_t upcorrbin = 1.5*Pi - Pi/32;
616
617 // ========================= histograms for both Data and MonteCarlo
618
619
620 TH1D * NofEvents = new TH1D("NofEvents","NofEvents",1,0,1);
621 fOutput->Add(NofEvents);
622
623 TH2F *D0InvMass = new TH2F("D0InvMass","K#pi invariant mass distribution",300,0,30,1500,0.5,3.5);
624 fOutput->Add(D0InvMass);
625
626 TH2F *D0InvMassinSB = new TH2F("D0InvMassinSB","K#pi invariant mass distribution in sb",300,0,30,1500,0.5,3.5);
627 fOutput->Add(D0InvMassinSB);
628
629 TH2F *DeltaInvMass = new TH2F("DeltaInvMass","K#pi#pi - K#pi invariant mass distribution",300,0,30,750,0.1,0.2);
630 fOutput->Add(DeltaInvMass);
631
632 TH2F *bkgDeltaInvMass = new TH2F("bkgDeltaInvMass","K#pi#pi - K#pi invariant mass distribution",300,0,30,750,0.1,0.2);
633 fOutput->Add(bkgDeltaInvMass);
634
635 TH1F *RecoPtDStar = new TH1F("RecoPtDStar","RECO DStar pt distribution",30,0,30);
636 fOutput->Add(RecoPtDStar);
637
638 TH1F *RecoPtBkg = new TH1F("RecoPtBkg","RECO pt distribution side bands",30,0,30);
639 fOutput->Add(RecoPtBkg);
640
641 TH2F *KZeroSpectra = new TH2F("KZeroSpectra","Spectra of K0s",500,0.3,0.8,250,0,25);
642 if(fselect==3) fOutput->Add(KZeroSpectra);
643
644 TH2F *KZeroSpectraifHF = new TH2F("KZeroSpectraifHF","Spectra of K0s in association with a D*",500,0.3,0.8,250,0,25);
645 if(fselect==3) fOutput->Add(KZeroSpectraifHF);
646
647 TH1D * NofTracksInPeak = new TH1D("NofTracksInPeak","NofTracksInPeak",500,0.5,500.5);
648 fOutput->Add(NofTracksInPeak);
649
650 TH1D * NofTracksInSB = new TH1D("NofTracksInSB","NofTracksInSB",500,0.5,500.5);
651 fOutput->Add(NofTracksInSB);
652
653 TH2I * EventMixingCheck = new TH2I("EventMixingCheck","EventMixingCheck",5,-0.5,4.5,7,-0.5,6.5);
654 if(fmixing) fOutput->Add(EventMixingCheck);
655
656
657
658 TH1F * MCSources = new TH1F("MCSources","Origin of associated particles in MC", 10, -0.5, 9.5);
659 MCSources->GetXaxis()->SetBinLabel(1,"All ");
660 MCSources->GetXaxis()->SetBinLabel(2," from Heavy flavour");
661 MCSources->GetXaxis()->SetBinLabel(3," from c->D");
662 MCSources->GetXaxis()->SetBinLabel(4," from b->D");
663 MCSources->GetXaxis()->SetBinLabel(5," from b->B");
664 if(fmontecarlo) fOutput->Add(MCSources);
665
666 TH1F * PhiTrigger = new TH1F("PhiTrigger","#phi distribution of the trigger particle",36,-0.5*Pi,1.5*Pi);
667 fOutput->Add(PhiTrigger);
668
669 TH1F * PhiSideBand = new TH1F("PhiSideBand","#phi distribution of the sideband particle",36,-0.5*Pi,1.5*Pi);
670 fOutput->Add(PhiSideBand);
671
672 TH1F * PhiPart = new TH1F("PhiPart","#phi distribution of the associated particle",36,-0.5*Pi,1.5*Pi);
673 fOutput->Add(PhiPart);
674
675
676 //correlations histograms
677 TString histoname1 = "DPhiDStar";
678 if(fselect==1) histoname1 += "Hadron";
679 if(fselect==2) histoname1 += "Kaon";
680 if(fselect==3) histoname1 += "KZero";
681
682
683 TH3D * DPhiDStar = new TH3D(histoname1.Data(),histoname1.Data(),nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
684
685 TH3D * DPhiDStarKZero1 = new TH3D("DPhiDStarKZero1","DPhiDStarKZero1",nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
686
687 //side band background histograms
688 TString histoname2 = "bkg";
689 histoname2 += histoname1;
690 TH3D * bkgDPhiDStar = new TH3D(histoname2.Data(),histoname2.Data(),nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
691 TH3D * bkgDPhiDStarKZero1 = new TH3D("bkgDPhiDStarKZero1","bkgDPhiDStarKZero1",nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
692
693
694 fOutput->Add(DPhiDStar);
695
696 if(fselect==3){fOutput->Add(DPhiDStarKZero1);}
697
698 fOutput->Add(bkgDPhiDStar);
699
700 if(fselect==3){fOutput->Add(bkgDPhiDStarKZero1);}
701
702
703 // ========================= histos for analysis on MC
704 TString histoname3 = "MCTag";
705 histoname3 += histoname1;
706 TH3D * MCTagDPhiDStar = new TH3D(histoname3.Data(),histoname3.Data(),nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
707
708 TString histoname44 = "CharmDOrigin";
709 histoname44 += histoname1;
710 histoname44 += "MC";
711
712 TH3D * CharmDOriginDPhiDStar = new TH3D(histoname44.Data(),histoname44.Data(),nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
713
714
715 TString histoname54 = "BeautyDOrigin";
716 histoname54 += histoname1;
717 histoname54 += "MC";
718 TH3D * BeautyDOriginDPhiDStar = new TH3D(histoname54.Data(),histoname54.Data(),nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
719
720 TString histoname55 = "BeautyBOrigin";
721 histoname55 += histoname1;
722 histoname55 += "MC";
723 TH3D * BeautyBOriginDPhiDStar = new TH3D(histoname55.Data(),histoname55.Data(),nbinscorr,lowcorrbin,upcorrbin,30,0,30,19,-0.95,0.95);
724
725 if(fmontecarlo){
726
727 fOutput->Add(MCTagDPhiDStar);
728 fOutput->Add(CharmDOriginDPhiDStar);
729 fOutput->Add(BeautyDOriginDPhiDStar);
730 fOutput->Add(BeautyBOriginDPhiDStar);
731
732 }
733
734
735
736}
737
738
739//____________________________ Function for correlations ___________________________________________________
740void AliAnalysisTaskDStarCorrelations::FillCorrelations(Double_t ptTrig, Double_t phiTrig, Double_t etaTrig, Double_t phiTrack, Double_t etaTrack){
741 Double_t pi = TMath::Pi();
742 Double_t deltaPhi, deltaEta;
743 deltaPhi = phiTrig - phiTrack;
744 deltaEta = etaTrig - etaTrack;
745 // set correct Delta Phi range
746 if (deltaPhi > 1.5*pi -pi/32) deltaPhi = deltaPhi - 2*pi;
747 if (deltaPhi < -0.5*pi -pi/32) deltaPhi = deltaPhi + 2*pi;
748 cout << "CRASH CHECK 1 " << endl;
749 if(fselect==1) ((TH3D*)fOutput->FindObject("DPhiDStarHadron"))->Fill(deltaPhi,ptTrig,deltaEta);
750 if(fselect==2) ((TH3D*)fOutput->FindObject("DPhiDStarKaon"))->Fill(deltaPhi,ptTrig,deltaEta);
751 if(fselect==3) ((TH3D*)fOutput->FindObject("DPhiDStarKZero"))->Fill(deltaPhi,ptTrig,deltaEta);
752 cout << "CRASH CHECK 2 " << endl;
753
754 return;
755}
756
757//____________________________ Function for sidebands ___________________________________________________
758void AliAnalysisTaskDStarCorrelations::FillSideBandCorrelations(Double_t ptTrig, Double_t phiTrig, Double_t etaTrig, Double_t phiTrack, Double_t etaTrack){
759
760 Double_t pi = TMath::Pi();
761 Double_t deltaPhi, deltaEta;
762 deltaPhi = phiTrig - phiTrack;
763 deltaEta = etaTrig - etaTrack;
764 // set correct Delta Phi range
765 if (deltaPhi > 1.5*pi -pi/32) deltaPhi = deltaPhi - 2*pi;
766 if (deltaPhi < -0.5*pi -pi/32) deltaPhi = deltaPhi + 2*pi;
767 cout << "CRASH CHECK bkg 1 " << endl;
768 if(fselect==1) ((TH3D*)fOutput->FindObject("bkgDPhiDStarHadron"))->Fill(deltaPhi,ptTrig,deltaEta);
769 if(fselect==2) ((TH3D*)fOutput->FindObject("bkgDPhiDStarKaon"))->Fill(deltaPhi,ptTrig,deltaEta);
770 if(fselect==3) ((TH3D*)fOutput->FindObject("bkgDPhiDStarKZero"))->Fill(deltaPhi,ptTrig,deltaEta);
771 cout << "CRASH CHECK bkg 2 " << endl;
772
773 return;
774
775
776}
777
778//____________________________ Function for sidebands ___________________________________________________
779void AliAnalysisTaskDStarCorrelations::FillMCTagCorrelations(Double_t ptTrig, Double_t phiTrig, Double_t etaTrig, Double_t ptTrack, Double_t phiTrack, Double_t etaTrack, Int_t mcSource){
780Double_t deltaPhi = phiTrig - phiTrack;
781Double_t deltaEta = etaTrig - etaTrack;
782// set correct Delta Phi range
783
784 Double_t pi = TMath::Pi();
785
786if (deltaPhi > 1.5*pi -pi/32) deltaPhi = deltaPhi - 2*pi;
787if (deltaPhi < -0.5*pi -pi/32) deltaPhi = deltaPhi + 2*pi;
788cout << "fill1" << endl;
789 if(fselect==1) ((TH3D*)fOutput->FindObject("MCTagDPhiDStarHadron"))->Fill(deltaPhi,ptTrig,deltaEta);
790 if(fselect==2 && ptTrack <1.5) ((TH3D*)fOutput->FindObject("MCTagDPhiDStarKaon"))->Fill(deltaPhi,ptTrig,deltaEta);
791 if(fselect==3) ((TH3D*)fOutput->FindObject("MCTagDPhiDStarKZero"))->Fill(deltaPhi,ptTrig,deltaEta);
792
793
794
795((TH1F*)fOutput->FindObject("MCSources"))->Fill(0);
796cout << "fill2" << endl;
797if (mcSource==44){ // is from charm ->D
798 if(fselect==1) ((TH3D*)fOutput->FindObject("CharmDOriginDPhiDStarHadronMC"))->Fill(deltaPhi,ptTrig,deltaEta);
799 if(fselect==2 && ptTrack <1.5) ((TH3D*)fOutput->FindObject("CharmDOriginDPhiDStarKaonMC"))->Fill(deltaPhi,ptTrig,deltaEta);
800 if(fselect==3) ((TH3D*)fOutput->FindObject("CharmDOriginDPhiDStarKZeroMC"))->Fill(deltaPhi,ptTrig,deltaEta);
801
802
803 ((TH1F*)fOutput->FindObject("MCSources"))->Fill(1);
804 ((TH1F*)fOutput->FindObject("MCSources"))->Fill(2);
805 }
806cout << "fill3" << endl;
807if (mcSource==54){ // is from beauty -> D
808 if(fselect==1) ((TH3D*)fOutput->FindObject("BeautyDOriginDPhiDStarHadronMC"))->Fill(deltaPhi,ptTrig,deltaEta);
809 if(fselect==2 && ptTrack <1.5) ((TH3D*)fOutput->FindObject("BeautyDOriginDPhiDStarKaonMC"))->Fill(deltaPhi,ptTrig,deltaEta);
810 if(fselect==3) ((TH3D*)fOutput->FindObject("BeautyDOriginDPhiDStarKZeroMC"))->Fill(deltaPhi,ptTrig,deltaEta);
811 if(fselect==3) ((TH1F*)fOutput->FindObject("MCSources"))->Fill(1);
812 if(fselect==3) ((TH1F*)fOutput->FindObject("MCSources"))->Fill(3);
813 }
814cout << "fill4" << endl;
815if (mcSource==55){ // is from beauty ->B
816 if(fselect==1) ((TH3D*)fOutput->FindObject("BeautyBOriginDPhiDStarHadronMC"))->Fill(deltaPhi,ptTrig,deltaEta);
817 if(fselect==2 && ptTrack <1.5) ((TH3D*)fOutput->FindObject("BeautyBOriginDPhiDStarKaonMC"))->Fill(deltaPhi,ptTrig,deltaEta);
818 if(fselect==3) ((TH3D*)fOutput->FindObject("BeautyOriginBDPhiDStarKZeroMC"))->Fill(deltaPhi,ptTrig,deltaEta);
819 if(fselect==3) ((TH1F*)fOutput->FindObject("MCSources"))->Fill(1);
820 if(fselect==3) ((TH1F*)fOutput->FindObject("MCSources"))->Fill(4);
821 }
822 return;
823}
824
825
826
827
828