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14 **************************************************************************/
17 //=========================================================================//
18 // AliEbyE Analysis for Particle Ratio Fluctuation //
19 // Deepika Rathee | Satyajit Jena //
20 // drathee@cern.ch | sjena@cern.ch //
21 // Date: Wed Jul 9 18:38:30 CEST 2014 //
22 // New approch to find particle ratio to reduce memory //
24 //=========================================================================//
35 #include "AliMCEvent.h"
36 #include "AliMCParticle.h"
37 #include "AliESDtrackCuts.h"
38 #include "AliESDInputHandler.h"
39 #include "AliESDpid.h"
40 #include "AliCentrality.h"
41 #include "AliTracker.h"
42 #include "AliAODInputHandler.h"
43 #include "AliAODEvent.h"
44 #include "AliAODTrack.h"
45 #include "AliAODMCParticle.h"
46 #include "AliEbyEPidRatioQA.h"
50 ClassImp(AliEbyEPidRatioQA)
51 //________________________________________________________________________
52 AliEbyEPidRatioQA::AliEbyEPidRatioQA() :
53 AliEbyEPidRatioBase("QA", "QA"),
55 fHnQAa(NULL), fHnQAb(NULL) {
58 AliLog::SetClassDebugLevel("AliEbyEPidRatioQA",10);
61 //________________________________________________________________________
62 AliEbyEPidRatioQA::~AliEbyEPidRatioQA() {
68 //________________________________________________________________________
69 void AliEbyEPidRatioQA::CreateHistograms() {
71 Int_t binHnQAa[10] = {AliEbyEPidRatioHelper::fgkfHistNBinsCent, 4,
72 AliEbyEPidRatioHelper::fgkfHistNBinsSign,
73 AliEbyEPidRatioHelper::fgkfHistNBinsPt,
76 Double_t minHnQAa[10] = {AliEbyEPidRatioHelper::fgkfHistRangeCent[0],-0.5,
77 AliEbyEPidRatioHelper::fgkfHistRangeSign[0],
78 AliEbyEPidRatioHelper::fgkfHistRangePt[0],
79 30, -10,-10, -10, -0.5};
81 Double_t maxHnQAa[10] = {AliEbyEPidRatioHelper::fgkfHistRangeCent[1], 3.5,
82 AliEbyEPidRatioHelper::fgkfHistRangeSign[1],
83 AliEbyEPidRatioHelper::fgkfHistRangePt[1],
84 500, 10., 10., 10., 2.5};
86 Int_t binHnQAb[9] = {AliEbyEPidRatioHelper::fgkfHistNBinsCent, 4,
87 AliEbyEPidRatioHelper::fgkfHistNBinsSign,
88 AliEbyEPidRatioHelper::fgkfHistNBinsPt,
89 AliEbyEPidRatioHelper::fgkfHistNBinsEta,
90 AliEbyEPidRatioHelper::fgkfHistNBinsRap,
91 AliEbyEPidRatioHelper::fgkfHistNBinsPhi,
94 Double_t minHnQAb[9] = {AliEbyEPidRatioHelper::fgkfHistRangeCent[0],-0.5,
95 AliEbyEPidRatioHelper::fgkfHistRangeSign[0],
96 AliEbyEPidRatioHelper::fgkfHistRangePt[0],
97 AliEbyEPidRatioHelper::fgkfHistRangeEta[0],
98 AliEbyEPidRatioHelper::fgkfHistRangeRap[0],
99 AliEbyEPidRatioHelper::fgkfHistRangePhi[0],
102 Double_t maxHnQAb[9] = {AliEbyEPidRatioHelper::fgkfHistRangeCent[1], 3.5,
103 AliEbyEPidRatioHelper::fgkfHistRangeSign[1],
104 AliEbyEPidRatioHelper::fgkfHistRangePt[1],
105 AliEbyEPidRatioHelper::fgkfHistRangeEta[1],
106 AliEbyEPidRatioHelper::fgkfHistRangeRap[1],
107 AliEbyEPidRatioHelper::fgkfHistRangePhi[1],
110 fHnQAa = new THnSparseF("hnQAPid", "cent:pid:sign:pt:pInner:TPCsignal:nSigmaITS:nSigmaTPC:nSigmaTOF:MCisProbe", 10, binHnQAa, minHnQAa, maxHnQAa);
111 fHnQAb = new THnSparseF("hnQADca", "cent:pid:sign:eta:y:phi:pt:DCAr:DCAz", 9, binHnQAb, minHnQAb, maxHnQAb);
115 fHnQAa->GetAxis(0)->SetTitle("centrality"); // 0-5|5-10|10-20|20-30|30-40|40-50|50-60|60-70|70-80|80-90 --> 10 bins
116 fHnQAa->GetAxis(1)->SetTitle("N_{ch}|N_{#pi}|N_{K}|N_{p}"); // 0 | 1 | 2 | 3
117 fHnQAa->GetAxis(2)->SetTitle("sign"); // -1 | 0 | +1
118 fHnQAa->GetAxis(3)->SetTitle("#it{p}_{T} (GeV/#it{c})"); // pt [ 0.46, 2.22]
119 fHnQAa->GetAxis(4)->SetTitle("#it{p}_{Inner} (GeV/#it{c})"); // pInner [ 0.1, 3.0]
120 fHnQAa->GetAxis(5)->SetTitle("TPC signal"); // TPCsignal [30, 500]
121 fHnQAa->GetAxis(6)->SetTitle("n #sigma ITS"); // nSigma ITS [-10, 10]
122 fHnQAa->GetAxis(7)->SetTitle("n #sigma TPC"); // nSigma TPC [-10, 10]
123 fHnQAa->GetAxis(8)->SetTitle("n #sigma TOF"); // nSigma TOF [-10, 10]
124 fHnQAa->GetAxis(9)->SetTitle("MCisProbe"); // 0 | 1 (isProbeParticle) | 2 (isProbeParticle wrong sign)
126 fHnQAb->GetAxis(0)->SetTitle("centrality"); // 0-5|5-10|10-20|20-30|30-40|40-50|50-60|60-70|70-80|80-90 --> 10 bins
127 fHnQAb->GetAxis(1)->SetTitle("N_{ch}|N_{#pi}|N_{K}|N_{p}"); // 0 | 1 | 2 | 3
128 fHnQAb->GetAxis(2)->SetTitle("sign"); // -1 | 0 | +1
129 fHnQAb->GetAxis(3)->SetTitle("#it{p}_{T} (GeV/#it{c})"); // pt [ 0.46, 2.22]
130 fHnQAb->GetAxis(4)->SetTitle("#eta"); // eta [-0.9, 0.9]
131 fHnQAb->GetAxis(5)->SetTitle("#it{y}"); // rapidity [-0.5, 0.5]
132 fHnQAb->GetAxis(6)->SetTitle("#varphi"); // phi [ 0. , 2Pi]
133 fHnQAb->GetAxis(7)->SetTitle("DCAr"); // DCAr [-10, 10]
134 fHnQAb->GetAxis(8)->SetTitle("DCAz"); // DCAz [-10, 10]
135 // fHnQA->GetAxis(9)->SetTitle("n #sigma #sqrt(Cdd)/DCAr"); // nSigma DCAr [-10, 10]
136 // fHnQA->GetAxis(10)->SetTitle("n #sigma #sqrt(Czz)/DCAz"); // nSigma DCAz [-10, 10]
138 fHelper->BinLogAxis(fHnQAa, 3);
139 fHelper->BinLogAxis(fHnQAa, 4);
140 fHelper->BinLogAxis(fHnQAb, 3);
149 //________________________________________________________________________
150 void AliEbyEPidRatioQA::Process() {
152 fESDTrackCuts->GetEtaRange(etaRange[0],etaRange[1]);
155 fESDTrackCuts->GetPtRange(ptRange[0],ptRange[1]);
158 for (Int_t idxTrack = 0; idxTrack < fNTracks; ++idxTrack) {
160 AliVTrack *track = (fESD) ? static_cast<AliVTrack*>(fESD->GetTrack(idxTrack)) : static_cast<AliVTrack*>(fAOD->GetTrack(idxTrack));
162 // -- Check if track is accepted for basic parameters
163 if (!fHelper->IsTrackAcceptedBasicCharged(track))
166 // -- Check if accepted - ESD
168 if (!fESDTrackCuts->AcceptTrack(dynamic_cast<AliESDtrack*>(track)))
173 // -- Check if accepted - AOD
175 AliAODTrack * trackAOD = dynamic_cast<AliAODTrack*>(track);
178 AliError("Pointer to dynamic_cast<AliAODTrack*>(track) = ZERO");
181 if (!trackAOD->TestFilterBit(fAODtrackCutBit))
184 // -- Check if in pT and eta range (is done in ESDTrackCuts for ESDs)
185 if(!(track->Pt() > ptRange[0] && track->Pt() <= ptRange[1] && TMath::Abs(track->Eta()) <= etaRange[1]))
193 if (fHelper->IsTrackAcceptedPID(track, pid, (AliPID::kPion))) { iPid = 1; gPdgCode = 211;}
194 else if (fHelper->IsTrackAcceptedPID(track, pid, (AliPID::kKaon))) { iPid = 2; gPdgCode = 321;}
195 else if (fHelper->IsTrackAcceptedPID(track, pid, (AliPID::kProton))){ iPid = 3; gPdgCode = 2212;}
199 //cout << idxTrack << " --- QA ---- " << iPid << " " << gPdgCode << endl;
202 if ((iPid != 0) && !fHelper->IsTrackAcceptedRapidity(track, yP, iPid))
205 if (!fHelper->IsTrackAcceptedDCA(track))
208 // -- Check if probe particle
209 Int_t isProbeParticle = 0;
211 Int_t label = TMath::Abs(track->GetLabel());
213 AliVParticle* particle = (fESD) ? fMCEvent->GetTrack(label) : static_cast<AliVParticle*>(fArrayMC->At(label));
215 if (TMath::Abs(particle->PdgCode()) == gPdgCode) {
217 if (particle->PdgCode() != (track->Charge()*gPdgCode))
224 Float_t dca[] = {0.,0.}; // dca_xy, dca_z,
225 Float_t cov[] = {0.,0.,0.}; // sigma_xy, sigma_xy_z, sigma_z
227 (static_cast<AliESDtrack*>(track))->GetImpactParameters(dca,cov);
229 // Float_t dcaRoverCdd = ( TMath::Sqrt(cov[0]) != 0. ) ? dca[0]/TMath::Sqrt(cov[0]) : -9.99;
230 // Float_t dcaZoverCzz = ( TMath::Sqrt(cov[2]) != 0. ) ? dca[1]/TMath::Sqrt(cov[2]) : -9.99;
236 // cout << pid[0] << " " << pid[1] << " " << pid[2] << yP << " " << iPid << endl;
240 Double_t aTracka[10] = {fCentralityBin,0,track->Charge(),track->Pt(),track->GetTPCmomentum(),track->GetTPCsignal(),pid[0],pid[1],pid[2],isProbeParticle};
241 Double_t aTrackb[9] = {fCentralityBin,0,track->Charge(),track->Pt(),track->Eta(),yP, track->Phi(),dca[0],dca[1]};
242 fHnQAa->Fill(aTracka);
243 fHnQAb->Fill(aTrackb);
246 Double_t aTracka[10] = {fCentralityBin,iPid,track->Charge(),track->Pt(),track->GetTPCmomentum(),track->GetTPCsignal(),pid[0],pid[1],pid[2],isProbeParticle};
247 Double_t aTrackb[9] = {fCentralityBin,iPid,track->Charge(),track->Pt(),track->Eta(),yP, track->Phi(),dca[0],dca[1]};
248 fHnQAa->Fill(aTracka);
249 fHnQAb->Fill(aTrackb);
251 } // for (Int_t idxTrack = 0; idxTrack < fNTracks; ++idxTrack) {