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49061176 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//
18// AliAnalysisTaskSE for D0 candidates invariant mass histogram
a41f6fad 19// and comparison with the MC truth and cut variables distributions.
49061176 20//
21// Authors: A.Dainese, andrea.dainese@lnl.infn.it
feb73eca 22// Chiara Bianchin, chiara.bianchin@pd.infn.it (invariant mass)
23// Carmelo Di Giglio, carmelo.digiglio@ba.infn.it (like sign)
49061176 24/////////////////////////////////////////////////////////////
25
26#include <Riostream.h>
27#include <TClonesArray.h>
28#include <TNtuple.h>
29#include <TList.h>
30#include <TH1F.h>
a41f6fad 31#include <TH2F.h>
32#include <TDatabasePDG.h>
49061176 33
34#include "AliAODEvent.h"
35#include "AliAODVertex.h"
36#include "AliAODTrack.h"
37#include "AliAODMCHeader.h"
38#include "AliAODMCParticle.h"
39#include "AliAODRecoDecayHF2Prong.h"
40#include "AliAODRecoCascadeHF.h"
41#include "AliAnalysisVertexingHF.h"
42#include "AliAnalysisTaskSE.h"
43#include "AliAnalysisTaskSED0Mass.h"
44
45ClassImp(AliAnalysisTaskSED0Mass)
46
47
48//________________________________________________________________________
49AliAnalysisTaskSED0Mass::AliAnalysisTaskSED0Mass():
50AliAnalysisTaskSE(),
9de8c723 51fOutputPPR(0),
a41f6fad 52fOutputloose(0),
53fDistr(0),
feb73eca 54fNentries(0),
9de8c723 55fVHFPPR(0),
6ce5994f 56fVHFloose(0),
feb73eca 57fArray(0),
58fLsNormalization(1.)
59
49061176 60{
61 // Default constructor
9de8c723 62 for(Int_t i=0;i<5;i++) {fTotPosPairs[i]=0; fTotNegPairs[i]=0;}
49061176 63}
64
65//________________________________________________________________________
66AliAnalysisTaskSED0Mass::AliAnalysisTaskSED0Mass(const char *name):
67AliAnalysisTaskSE(name),
9de8c723 68fOutputPPR(0),
a4ae02cd 69fOutputloose(0),
a41f6fad 70fDistr(0),
feb73eca 71fNentries(0),
9de8c723 72fVHFPPR(0),
6ce5994f 73fVHFloose(0),
feb73eca 74fArray(0),
75fLsNormalization(1.)
49061176 76{
77 // Default constructor
9de8c723 78 for(Int_t i=0;i<5;i++) {fTotPosPairs[i]=0; fTotNegPairs[i]=0;}
49061176 79
80 // Output slot #1 writes into a TList container
81 DefineOutput(1,TList::Class()); //My private output
a4ae02cd 82 // Output slot #2 writes into a TList container
83 DefineOutput(2,TList::Class()); //My private output
84 // Output slot #3 writes into a TH1F container
85 DefineOutput(3,TH1F::Class()); //My private output
a41f6fad 86 // Output slot #4 writes into a TList container
87 DefineOutput(4,TList::Class()); //My private output
49061176 88}
89
90//________________________________________________________________________
91AliAnalysisTaskSED0Mass::~AliAnalysisTaskSED0Mass()
92{
9de8c723 93 if (fOutputPPR) {
94 delete fOutputPPR;
95 fOutputPPR = 0;
a4ae02cd 96 }
9de8c723 97 if (fVHFPPR) {
98 delete fVHFPPR;
99 fVHFPPR = 0;
a4ae02cd 100 }
101 if (fOutputloose) {
102 delete fOutputloose;
103 fOutputloose = 0;
104 }
a41f6fad 105
106 if (fDistr) {
107 delete fDistr;
108 fDistr = 0;
109 }
110
a4ae02cd 111 if (fVHFloose) {
112 delete fVHFloose;
113 fVHFloose = 0;
49061176 114 }
46c96ce5 115 if (fNentries){
116 delete fNentries;
117 fNentries = 0;
118 }
a41f6fad 119
120
49061176 121}
122
123//________________________________________________________________________
124void AliAnalysisTaskSED0Mass::Init()
125{
126 // Initialization
127
128 if(fDebug > 1) printf("AnalysisTaskSED0Mass::Init() \n");
129
130 gROOT->LoadMacro("$ALICE_ROOT/PWG3/vertexingHF/ConfigVertexingHF.C");
131
a4ae02cd 132 // 2 sets of dedidcated cuts -- defined in UserExec
9de8c723 133 fVHFPPR = (AliAnalysisVertexingHF*)gROOT->ProcessLine("ConfigVertexingHF()");
a4ae02cd 134 fVHFloose = (AliAnalysisVertexingHF*)gROOT->ProcessLine("ConfigVertexingHF()");
135
49061176 136 return;
137}
138
139//________________________________________________________________________
140void AliAnalysisTaskSED0Mass::UserCreateOutputObjects()
141{
142
143 // Create the output container
144 //
145 if(fDebug > 1) printf("AnalysisTaskSED0Mass::UserCreateOutputObjects() \n");
146
147 // Several histograms are more conveniently managed in a TList
9de8c723 148 fOutputPPR = new TList();
149 fOutputPPR->SetOwner();
150 fOutputPPR->SetName("listPPR");
a4ae02cd 151
152 fOutputloose = new TList();
153 fOutputloose->SetOwner();
154 fOutputloose->SetName("listloose");
49061176 155
a41f6fad 156 fDistr = new TList();
157 fDistr->SetOwner();
158 fDistr->SetName("distributionslist");
159
9de8c723 160 const Int_t nhist=5;
a4ae02cd 161
9de8c723 162 TString nameMass=" ",nameSgn27=" ",nameSgn=" ", nameBkg=" ", nameRfl=" ", namedistr=" ";
49061176 163
164 for(Int_t i=0;i<nhist;i++){
7646d6da 165 nameMass="histMass_";
49061176 166 nameMass+=i+1;
9de8c723 167 nameSgn27="histSgn27_";
168 nameSgn27+=i+1;
7646d6da 169 nameSgn="histSgn_";
49061176 170 nameSgn+=i+1;
7646d6da 171 nameBkg="histBkg_";
49061176 172 nameBkg+=i+1;
a4ae02cd 173 nameRfl="histRfl_";
174 nameRfl+=i+1;
7646d6da 175
a41f6fad 176 //histograms of invariant mass distributions
177
46c96ce5 178 TH1F* tmpMt = new TH1F(nameMass.Data(),"D^{0} invariant mass; M [GeV]; Entries",200,1.765,1.965);
179 TH1F *tmpMl=(TH1F*)tmpMt->Clone();
180 tmpMt->Sumw2();
181 tmpMl->Sumw2();
a4ae02cd 182
9de8c723 183 //to compare with AliAnalysisTaskCharmFraction
184 TH1F* tmpS27t = new TH1F(nameSgn27.Data(),"D^{0} invariant mass in M(D^{0}) +/- 27 MeV - MC; M [GeV]; Entries",200,1.765,1.965);
185 TH1F *tmpS27l=(TH1F*)tmpS27t->Clone();
186 tmpS27t->Sumw2();
187 tmpS27l->Sumw2();
188
46c96ce5 189 TH1F* tmpSt = new TH1F(nameSgn.Data(), "D^{0} invariant mass - MC; M [GeV]; Entries",200,1.765,1.965);
190 TH1F *tmpSl=(TH1F*)tmpSt->Clone();
191 tmpSt->Sumw2();
192 tmpSl->Sumw2();
a4ae02cd 193
46c96ce5 194 TH1F* tmpBt = new TH1F(nameBkg.Data(), "Background invariant mass - MC; M [GeV]; Entries",200,1.765,1.965);
195 TH1F *tmpBl=(TH1F*)tmpBt->Clone();
196 tmpBt->Sumw2();
197 tmpBl->Sumw2();
a4ae02cd 198
feb73eca 199 //Reflection: histo filled with D0Mass which pass the cut (also) as D0bar and with D0bar which pass (also) the cut as D0
46c96ce5 200 TH1F* tmpRt = new TH1F(nameRfl.Data(), "Reflected signal invariant mass - MC; M [GeV]; Entries",200,1.765,1.965);
201 TH1F *tmpRl=(TH1F*)tmpRt->Clone();
202 tmpRt->Sumw2();
203 tmpRl->Sumw2();
a4ae02cd 204 // printf("Created histograms %s\t%s\t%s\t%s\n",tmpM->GetName(),tmpS->GetName(),tmpB->GetName(),tmpR->GetName());
205
9de8c723 206 fOutputPPR->Add(tmpMt);
207 fOutputPPR->Add(tmpSt);
208 fOutputPPR->Add(tmpS27t);
209 fOutputPPR->Add(tmpBt);
210 fOutputPPR->Add(tmpRt);
a4ae02cd 211
46c96ce5 212 fOutputloose->Add(tmpMl);
213 fOutputloose->Add(tmpSl);
9de8c723 214 fOutputloose->Add(tmpS27l);
46c96ce5 215 fOutputloose->Add(tmpBl);
216 fOutputloose->Add(tmpRl);
a4ae02cd 217
7646d6da 218 }
a4ae02cd 219
a41f6fad 220 //histograms of cut variable distributions
221 // pT
222 namedistr="hptpiS";
223 TH1F *hptpiS = new TH1F(namedistr.Data(), "P_{T} distribution (pions);p_{T} [GeV/c]",200,0.,8.);
a41f6fad 224
225 namedistr="hptKS";
226 TH1F *hptKS = new TH1F(namedistr.Data(), "P_{T} distribution (kaons);p_{T} [GeV/c]",200,0.,8.);
227
228 namedistr="hptB";
229 TH1F *hptB = new TH1F(namedistr.Data(), "P_{T} distribution;p_{T} [GeV/c]",200,0.,8.);
a41f6fad 230
231 // dca
232 namedistr="hdcaS";
233 TH1F *hdcaS = new TH1F(namedistr.Data(), "DCA distribution;dca [cm]",200,0.,0.1);
234 namedistr="hdcaB";
235 TH1F *hdcaB = new TH1F(namedistr.Data(), "DCA distribution;dca [cm]",200,0.,0.1);
a41f6fad 236
237 // costhetastar
feb73eca 238 namedistr="hcosthetastarS";
a41f6fad 239 TH1F *hcosthetastarS = new TH1F(namedistr.Data(), "cos#theta* distribution;cos#theta*",200,-1.,1.);
feb73eca 240 namedistr="hcosthetastarB";
a41f6fad 241 TH1F *hcosthetastarB = new TH1F(namedistr.Data(), "cos#theta* distribution;cos#theta*",200,-1.,1.);
a41f6fad 242
243 // impact parameter
244 namedistr="hd0piS";
245 TH1F *hd0piS = new TH1F(namedistr.Data(), "Impact parameter distribution (pions);d0(#pi) [cm]",200,-0.1,0.1);
a41f6fad 246
247 namedistr="hd0KS";
248 TH1F *hd0KS = new TH1F(namedistr.Data(), "Impact parameter distribution (kaons);d0(K) [cm]",200,-0.1,0.1);
249 namedistr="hd0B";
250 TH1F *hd0B = new TH1F(namedistr.Data(), "Impact parameter distribution;d0 [cm]",200,-0.1,0.1);
a41f6fad 251
252 namedistr="hd0d0S";
253 TH1F *hd0d0S = new TH1F(namedistr.Data(), "d_{0}#timesd_{0} distribution;d_{0}#timesd_{0} [cm^{2}]",200,-0.001,0.001);
254 namedistr="hd0d0B";
255 TH1F *hd0d0B = new TH1F(namedistr.Data(), "d_{0}#timesd_{0} distribution;d_{0}#timesd_{0} [cm^{2}]",200,-0.001,0.001);
a41f6fad 256
257 // costhetapoint
258 namedistr="hcosthetapointS";
259 TH1F *hcosthetapointS = new TH1F(namedistr.Data(), "cos#theta_{Point} distribution;cos#theta_{Point}",200,0,1.);
260 namedistr="hcosthetapointB";
261 TH1F *hcosthetapointB = new TH1F(namedistr.Data(), "cos#theta_{Point} distribution;cos#theta_{Point}",200,0,1.);
a41f6fad 262
263 namedistr="hcosthpointd0d0S";
264 TH2F *hcosthpointd0d0S= new TH2F(namedistr.Data(),"Correlation cos#theta_{Point}-d_{0}#timesd_{0};cos#theta_{Point};d_{0}#timesd_{0} [cm^{2}]",200,0,1.,200,-0.001,0.001);
265 namedistr="hcosthpointd0d0B";
266 TH2F *hcosthpointd0d0B= new TH2F(namedistr.Data(),"Correlation cos#theta_{Point}-d_{0}#timesd_{0};cos#theta_{Point};d_{0}#timesd_{0} [cm^{2}]",200,0,1.,200,-0.001,0.001);
267
268 fDistr->Add(hptpiS);
a41f6fad 269 fDistr->Add(hptKS);
270 fDistr->Add(hptB);
a41f6fad 271
272 fDistr->Add(hdcaS);
273 fDistr->Add(hdcaB);
a41f6fad 274
275 fDistr->Add(hd0piS);
a41f6fad 276 fDistr->Add(hd0KS);
277 fDistr->Add(hd0B);
a41f6fad 278
279 fDistr->Add(hd0d0S);
280 fDistr->Add(hd0d0B);
a41f6fad 281
282 fDistr->Add(hcosthetastarS);
283 fDistr->Add(hcosthetastarB);
a41f6fad 284
285 fDistr->Add(hcosthetapointS);
286 fDistr->Add(hcosthetapointB);
a41f6fad 287
288 fDistr->Add(hcosthpointd0d0S);
289 fDistr->Add(hcosthpointd0d0B);
290
9de8c723 291 fNentries=new TH1F("nentriesD0", "nentriesD0->Integral(1,2) = number of AODs *** nentriesD0->Integral(3,4) = number of candidates selected with cuts *** nentriesD0->Integral(5,6) = number of D0 selected with cuts", 6,1.,4.);
a4ae02cd 292
49061176 293 return;
294}
295
296//________________________________________________________________________
297void AliAnalysisTaskSED0Mass::UserExec(Option_t */*option*/)
298{
299 // Execute analysis for current event:
300 // heavy flavor candidates association to MC truth
a4ae02cd 301 //cout<<"I'm in UserExec"<<endl;
49061176 302 AliAODEvent *aod = dynamic_cast<AliAODEvent*> (InputEvent());
feb73eca 303
304 TClonesArray *inputArray=0;
305
306 if(fArray==0){ //D0 candidates
307 // load D0->Kpi candidates
308 //cout<<"D0 candidates"<<endl;
309 inputArray =
310 (TClonesArray*)aod->GetList()->FindObject("D0toKpi");
311 if(!inputArray) {
312 printf("AliAnalysisTaskSECompareHFpt::UserExec: D0toKpi branch not found!\n");
313 return;
314 }
315
316 } else { //LikeSign candidates
317
318 //cout<<"LS candidates"<<endl;
319 // load like sign candidates
320 inputArray =
321 (TClonesArray*)aod->GetList()->FindObject("LikeSign2Prong");
322 if(!inputArray) {
323 printf("AliAnalysisTaskSEBkgLikeSignD0::UserExec: LikeSign2Prong branch not found!\n");
324 return;
325 }
326
49061176 327 }
328
329 // AOD primary vertex
330 AliAODVertex *vtx1 = (AliAODVertex*)aod->GetPrimaryVertex();
331 //vtx1->Print();
feb73eca 332
49061176 333 // load MC particles
334 TClonesArray *mcArray =
335 (TClonesArray*)aod->GetList()->FindObject(AliAODMCParticle::StdBranchName());
336 if(!mcArray) {
337 printf("AliAnalysisTaskSED0Mass::UserExec: MC particles branch not found!\n");
338 return;
339 }
340
341 // load MC header
342 AliAODMCHeader *mcHeader =
343 (AliAODMCHeader*)aod->GetList()->FindObject(AliAODMCHeader::StdBranchName());
344 if(!mcHeader) {
345 printf("AliAnalysisTaskSED0Mass::UserExec: MC header branch not found!\n");
346 return;
347 }
348
a4ae02cd 349
350 //histogram filled with 1 for every AOD
351 fNentries->Fill(1);
352 PostData(3,fNentries);
9de8c723 353
feb73eca 354 // loop over candidates
355 Int_t nInD0toKpi = inputArray->GetEntriesFast();
4464ce7e 356 if(fDebug>1) printf("Number of D0->Kpi: %d\n",nInD0toKpi);
49061176 357
358 for (Int_t iD0toKpi = 0; iD0toKpi < nInD0toKpi; iD0toKpi++) {
feb73eca 359 //Int_t nPosPairs=0, nNegPairs=0;
a41f6fad 360 //cout<<"inside the loop"<<endl;
feb73eca 361 AliAODRecoDecayHF2Prong *d = (AliAODRecoDecayHF2Prong*)inputArray->UncheckedAt(iD0toKpi);
49061176 362 Bool_t unsetvtx=kFALSE;
363 if(!d->GetOwnPrimaryVtx()) {
364 d->SetOwnPrimaryVtx(vtx1); // needed to compute all variables
365 unsetvtx=kTRUE;
366 }
367
9de8c723 368
369
370 //check reco daughter in acceptance
371 Double_t eta0=d->EtaProng(0);
372 Double_t eta1=d->EtaProng(1);
373 Bool_t prongsinacc=kFALSE;
374 if (TMath::Abs(eta0) < 0.9 && TMath::Abs(eta1) < 0.9) prongsinacc=kTRUE;
a41f6fad 375
376 //add distr here
377 UInt_t pdgs[2];
49061176 378
a41f6fad 379 Double_t mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
380 pdgs[0]=211;
381 pdgs[1]=321;
382 Double_t minvD0 = d->InvMassD0();
383 pdgs[1]=211;
384 pdgs[0]=321;
385 Double_t minvD0bar = d->InvMassD0bar();
386 //apply cut on invariant mass on the pair
387 if(TMath::Abs(minvD0-mPDG)<0.03 || TMath::Abs(minvD0bar-mPDG)<0.03){
feb73eca 388 //cout<<"inside mass cut"<<endl;
a41f6fad 389 Int_t pdgDgD0toKpi[2]={321,211};
390 Int_t lab=d->MatchToMC(421,mcArray,2,pdgDgD0toKpi); //return MC particle label if the array corresponds to a D0, -1 if not (cf. AliAODRecoDecay.cxx)
391
a41f6fad 392 if(lab>=0){ //signal
feb73eca 393 if(fArray==1) cout<<"LS signal: ERROR"<<endl;
a41f6fad 394 for (Int_t iprong=0; iprong<2; iprong++){
395 AliAODTrack *prong=(AliAODTrack*)d->GetDaughter(iprong);
396 Int_t labprong=prong->GetLabel();
397
398 //cout<<"prong name = "<<prong->GetName()<<" label = "<<prong->GetLabel()<<endl;
399 AliAODMCParticle *mcprong=0;
400 if(labprong>=0) mcprong= (AliAODMCParticle*)mcArray->At(labprong);
401 Int_t pdgprong=mcprong->GetPdgCode();
402 if(TMath::Abs(pdgprong)==211) {
403 //cout<<"pi"<<endl;
404 ((TH1F*)fDistr->FindObject("hptpiS"))->Fill(d->PtProng(iprong));
405 ((TH1F*)fDistr->FindObject("hd0piS"))->Fill(d->Getd0Prong(iprong));
406 }
407
408 if(TMath::Abs(pdgprong)==321) {
409 //cout<<"kappa"<<endl;
410 ((TH1F*)fDistr->FindObject("hptKS"))->Fill(d->PtProng(iprong));
411 ((TH1F*)fDistr->FindObject("hd0KS"))->Fill(d->Getd0Prong(iprong));
412 }
413 ((TH1F*)fDistr->FindObject("hdcaS"))->Fill(d->GetDCA());
414
415 }
416
417 if (((AliAODMCParticle*)mcArray->At(lab))->GetPdgCode() == 421)
feb73eca 418 ((TH1F*)fDistr->FindObject("hcosthetastarS"))->Fill(d->CosThetaStarD0());
419 else ((TH1F*)fDistr->FindObject("hcosthetastarS"))->Fill(d->CosThetaStarD0bar());
a41f6fad 420
421 ((TH1F*)fDistr->FindObject("hd0d0S"))->Fill(d->Prodd0d0());
422
423 ((TH1F*)fDistr->FindObject("hcosthetapointS"))->Fill(d->CosPointingAngle());
424 ((TH1F*)fDistr->FindObject("hcosthpointd0d0S"))->Fill(d->CosPointingAngle(),d->Prodd0d0());
425
426 //cout<<"ok point"<<endl;
427
feb73eca 428
429 } else{ //Background or LS
a41f6fad 430 //cout<<"is background"<<endl;
feb73eca 431 AliAODTrack *prong=(AliAODTrack*)d->GetDaughter(0);
432 if(!prong) cout<<"No daughter found";
433 else{
9de8c723 434 if(prong->Charge()==1) {fTotPosPairs[4]++;} else {fTotNegPairs[4]++;}
feb73eca 435 }
a41f6fad 436 ((TH1F*)fDistr->FindObject("hptB"))->Fill(d->PtProng(0));
437 //cout<<"ptok"<<endl;
438 ((TH1F*)fDistr->FindObject("hd0B"))->Fill(d->Getd0Prong(0));
439 //cout<<"d0ok"<<endl;
440 ((TH1F*)fDistr->FindObject("hdcaB"))->Fill(d->GetDCA());
441 //cout<<"dcaok"<<endl;
feb73eca 442 ((TH1F*)fDistr->FindObject("hcosthetastarB"))->Fill(d->CosThetaStarD0());
443 ((TH1F*)fDistr->FindObject("hcosthetastarB"))->Fill(d->CosThetaStarD0bar());
a41f6fad 444 ((TH1F*)fDistr->FindObject("hd0d0B"))->Fill(d->Prodd0d0());
445 //cout<<"d0d0ok"<<endl;
446 ((TH1F*)fDistr->FindObject("hcosthetapointB"))->Fill(d->CosPointingAngle());
447 ((TH1F*)fDistr->FindObject("hcosthpointd0d0B"))->Fill(d->CosPointingAngle(),d->Prodd0d0());
448
449 //cout<<"pointok"<<endl;
450
451 }
452
453 } //inv mass cut
454
9de8c723 455 //cuts order
456// printf(" |M-MD0| [GeV] < %f\n",fD0toKpiCuts[0]);
457// printf(" dca [cm] < %f\n",fD0toKpiCuts[1]);
458// printf(" cosThetaStar < %f\n",fD0toKpiCuts[2]);
459// printf(" pTK [GeV/c] > %f\n",fD0toKpiCuts[3]);
460// printf(" pTpi [GeV/c] > %f\n",fD0toKpiCuts[4]);
461// printf(" |d0K| [cm] < %f\n",fD0toKpiCuts[5]);
462// printf(" |d0pi| [cm] < %f\n",fD0toKpiCuts[6]);
463// printf(" d0d0 [cm^2] < %f\n",fD0toKpiCuts[7]);
464// printf(" cosThetaPoint > %f\n",fD0toKpiCuts[8]);
a41f6fad 465
49061176 466 Double_t pt = d->Pt();
a41f6fad 467
49061176 468 Int_t ptbin=0;
469
470 //cout<<"P_t = "<<pt<<endl;
471 if (pt>0. && pt<=1.) {
a4ae02cd 472 ptbin=1;
9de8c723 473 fVHFPPR->SetD0toKpiCuts(0.7,0.04,0.8,0.5,0.5,0.05,0.05,-0.0002,0.5);
6ce5994f 474 fVHFloose->SetD0toKpiCuts(0.7,0.04,0.8,0.5,0.5,0.05,0.05,-0.00025,0.7);
9de8c723 475// fVHFPPR->SetD0toKpiCuts(0.7,0.04,0.8,0.5,0.5,0.05,0.05,-0.0002,0.7);
6ce5994f 476// fVHFloose->SetD0toKpiCuts(0.7,0.04,0.8,0.5,0.5,1,1,-0.00015,0.5);
49061176 477 //printf("I'm in the bin %d\n",ptbin);
a4ae02cd 478
49061176 479 }
46c96ce5 480
481 if(pt>1. && pt<=3.) {
9de8c723 482 if(pt>1. && pt<=2.) ptbin=2;
483 if(pt>2. && pt<=3.) ptbin=3;
484 fVHFPPR->SetD0toKpiCuts(0.7,0.02,0.8,0.7,0.7,0.05,0.05,-0.0002,0.8);
46c96ce5 485 fVHFloose->SetD0toKpiCuts(0.7,0.02,0.8,0.7,0.7,1,1,-0.00025,0.8);
486 //printf("I'm in the bin %d\n",ptbin);
487 }
488
489 if(pt>3. && pt<=5.){
9de8c723 490 ptbin=4;
491 fVHFPPR->SetD0toKpiCuts(0.7,0.02,0.8,0.7,0.7,0.05,0.05,-0.0001,0.8);
6ce5994f 492 fVHFloose->SetD0toKpiCuts(0.7,0.02,0.8,0.7,0.7,0.05,0.05,-0.00015,0.8);
49061176 493 //printf("I'm in the bin %d\n",ptbin);
49061176 494 }
46c96ce5 495 if(pt>5.){
9de8c723 496 ptbin=5;
497 fVHFPPR->SetD0toKpiCuts(0.7,0.02,0.8,0.7,0.7,0.05,0.05,-0.00005,0.8);
46c96ce5 498 fVHFloose->SetD0toKpiCuts(0.7,0.02,0.8,0.7,0.7,0.05,0.05,-0.00015,0.9);
499 }//if(pt>5)
500
a4ae02cd 501 //printf("I'm in the bin %d\n",ptbin);
502 //old
503 //fVHF->SetD0toKpiCuts(0.7,0.03,0.8,0.06,0.06,0.05,0.05,-0.0002,0.6); //2.p-p vertex reconstructed
9de8c723 504 if(prongsinacc){
505 FillHists(ptbin,d,mcArray,fVHFPPR,fOutputPPR);
506 FillHists(ptbin,d,mcArray,fVHFloose,fOutputloose);
507 }
49061176 508 if(unsetvtx) d->UnsetOwnPrimaryVtx();
49061176 509 }
46c96ce5 510
49061176 511
512
513
514 // Post the data
9de8c723 515 PostData(1,fOutputPPR);
a4ae02cd 516 PostData(2,fOutputloose);
a41f6fad 517 PostData(4,fDistr);
49061176 518 return;
519}
520//____________________________________________________________________________*
a4ae02cd 521void AliAnalysisTaskSED0Mass::FillHists(Int_t ptbin, AliAODRecoDecayHF2Prong *part, TClonesArray *arrMC, AliAnalysisVertexingHF *vhf, TList *listout){
49061176 522 //
523 // function used in UserExec:
524 //
9de8c723 525
526
527 Double_t mPDG=TDatabasePDG::Instance()->GetParticle(421)->Mass();
528
49061176 529 Int_t okD0=0,okD0bar=0;
feb73eca 530 //cout<<"inside FillHist"<<endl;
a4ae02cd 531 if(part->SelectD0(vhf->GetD0toKpiCuts(),okD0,okD0bar)) {//selected
49061176 532 Double_t invmassD0 = part->InvMassD0(), invmassD0bar = part->InvMassD0bar();
533 //printf("SELECTED\n");
feb73eca 534
9de8c723 535
feb73eca 536 AliAODTrack *prong=(AliAODTrack*)part->GetDaughter(0);
537 if(!prong) cout<<"No daughter found";
538 else{
9de8c723 539 if(prong->Charge()==1) {fTotPosPairs[ptbin-1]++;} else {fTotNegPairs[ptbin-1]++;}
feb73eca 540 }
541
542 TString fillthis="";
c8112d2f 543 Int_t pdgDgD0toKpi[2]={321,211};
544 Int_t labD0 = part->MatchToMC(421,arrMC,2,pdgDgD0toKpi); //return MC particle label if the array corresponds to a D0, -1 if not (cf. AliAODRecoDecay.cxx)
a41f6fad 545
9de8c723 546 //count candidates selected by cuts
547 fNentries->Fill(2);
548 //count true D0 selected by cuts
549 if (labD0>=0) fNentries->Fill(3);
550 PostData(3,fNentries);
551
a4ae02cd 552 if (okD0==1) {
553 fillthis="histMass_";
7646d6da 554 fillthis+=ptbin;
555 //cout<<"Filling "<<fillthis<<endl;
556
49061176 557 //printf("Fill mass with D0");
a4ae02cd 558 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
feb73eca 559
a4ae02cd 560 if(labD0>=0) {
feb73eca 561 if(fArray==1) cout<<"LS signal ERROR"<<endl;
562
a4ae02cd 563 AliAODMCParticle *partD0 = (AliAODMCParticle*)arrMC->At(labD0);
564 Int_t pdgD0 = partD0->GetPdgCode();
565 //cout<<"pdg = "<<pdgD0<<endl;
a4ae02cd 566 if (pdgD0==421){ //D0
567 //cout<<"Fill S with D0"<<endl;
46c96ce5 568 fillthis="histSgn_";
569 fillthis+=ptbin;
a4ae02cd 570 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
9de8c723 571 if(TMath::Abs(invmassD0 - mPDG) < 0.027){
572 fillthis="histSgn27_";
573 fillthis+=ptbin;
574 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
575 }
a4ae02cd 576 } else{ //it was a D0bar
46c96ce5 577 fillthis="histRfl_";
578 fillthis+=ptbin;
579 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
a4ae02cd 580 }
581 } else {//background
582 fillthis="histBkg_";
583 fillthis+=ptbin;
584 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0);
585 }
feb73eca 586
49061176 587 }
588 if (okD0bar==1) {
a4ae02cd 589 fillthis="histMass_";
590 fillthis+=ptbin;
49061176 591 //printf("Fill mass with D0bar");
a4ae02cd 592 ((TH1F*)listout->FindObject(fillthis))->Fill(invmassD0bar);
feb73eca 593
a4ae02cd 594 if(labD0>=0) {
feb73eca 595 if(fArray==1) cout<<"LS signal ERROR"<<endl;
a4ae02cd 596 AliAODMCParticle *partD0 = (AliAODMCParticle*)arrMC->At(labD0);
597 Int_t pdgD0 = partD0->GetPdgCode();
598 //cout<<" pdg = "<<pdgD0<<endl;
599 if (pdgD0==-421){ //D0bar
600 fillthis="histSgn_";
601 fillthis+=ptbin;
602 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
9de8c723 603 if (TMath::Abs(invmassD0bar - mPDG) < 0.027){
604 fillthis="histSgn27_";
605 fillthis+=ptbin;
606 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
607 }
608
a4ae02cd 609
610 } else{
46c96ce5 611 fillthis="histRfl_";
612 fillthis+=ptbin;
613 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
a4ae02cd 614 }
feb73eca 615 } else {//background or LS
a4ae02cd 616 fillthis="histBkg_";
617 fillthis+=ptbin;
618 ((TH1F*)(listout->FindObject(fillthis)))->Fill(invmassD0bar);
619 }
620 }
621
622
49061176 623 } //else cout<<"NOT SELECTED"<<endl;
624
625}
626//________________________________________________________________________
627void AliAnalysisTaskSED0Mass::Terminate(Option_t */*option*/)
628{
629 // Terminate analysis
630 //
631 if(fDebug > 1) printf("AnalysisTaskSED0Mass: Terminate() \n");
632
9de8c723 633 fOutputPPR = dynamic_cast<TList*> (GetOutputData(1));
634 if (!fOutputPPR) {
a41f6fad 635 printf("ERROR: fOutputthight not available\n");
a4ae02cd 636 return;
637 }
638 fOutputloose = dynamic_cast<TList*> (GetOutputData(2));
639 if (!fOutputloose) {
a41f6fad 640 printf("ERROR: fOutputloose not available\n");
641 return;
642 }
9de8c723 643 fDistr = dynamic_cast<TList*> (GetOutputData(4));
a41f6fad 644 if (!fDistr) {
645 printf("ERROR: fDistr not available\n");
49061176 646 return;
647 }
648
feb73eca 649 if(fArray==1){
650 for(Int_t ipt=0;ipt<4;ipt++){
651 fLsNormalization = 2.*TMath::Sqrt(fTotPosPairs[ipt]*fTotNegPairs[ipt]);
652
653
654 if(fLsNormalization>0) {
9de8c723 655
feb73eca 656 TString massName="histMass_";
657 massName+=ipt+1;
9de8c723 658 ((TH1F*)fOutputPPR->FindObject(massName))->Scale((1/fLsNormalization)*((TH1F*)fOutputPPR->FindObject(massName))->GetEntries());
feb73eca 659 ((TH1F*)fOutputloose->FindObject(massName))->Scale((1/fLsNormalization)*((TH1F*)fOutputloose->FindObject(massName))->GetEntries());
660 }
661 }
662
663 fLsNormalization = 2.*TMath::Sqrt(fTotPosPairs[4]*fTotNegPairs[4]);
664
665 if(fLsNormalization>0) {
666
667 TString nameDistr="hptB";
668 ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
669 nameDistr="hdcaB";
670 ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
671 nameDistr="hcosthetastarB";
672 ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
673 nameDistr="hd0B";
674 ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
675 nameDistr="hd0d0B";
676 ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
677 nameDistr="hcosthetapointB";
678 ((TH1F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH1F*)fDistr->FindObject(nameDistr))->GetEntries());
679 nameDistr="hcosthpointd0d0B";
680 ((TH2F*)fDistr->FindObject(nameDistr))->Scale((1/fLsNormalization)*((TH2F*)fDistr->FindObject(nameDistr))->GetEntries());
681
682 }
683 }
6ce5994f 684
49061176 685 return;
686}
687