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3722909b 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// AliAnalysisTaskPhiEffMc class
18//-----------------------------------------------------------------
19
20#include "TChain.h"
21#include "TTree.h"
22#include "TLegend.h"
23#include "TH1F.h"
24#include "TH2F.h"
25#include "TH3F.h"
26#include "THnSparse.h"
27#include "TCanvas.h"
28#include "TObjArray.h"
29#include "AliAnalysisTask.h"
30#include "AliAnalysisManager.h"
31#include "AliVTrack.h"
32#include "AliAODMCParticle.h"
33#include "AliVParticle.h"
34#include "AliAODEvent.h"
35#include "AliAODInputHandler.h"
36#include "AliAnalysisTaskPhiEffMc.h"
37#include "AliAnalysisTaskESDfilter.h"
38#include "AliAnalysisDataContainer.h"
39#include "AliCentrality.h"
40#include "TProof.h"
41#include "AliPID.h"
42#include "AliVEvent.h"
43#include "AliPIDResponse.h"
fc1fe575 44#include "PWGLF/SPECTRA/PiKaPr/TestAOD/AliSpectraAODTrackCuts.h"
45#include "PWGLF/SPECTRA/PiKaPr/TestAOD/AliSpectraAODEventCuts.h"
3722909b 46#include "AliStack.h"
47#include <TMCProcess.h>
48#include "AliAnalyseLeadingTrackUE.h"
49
50#include <iostream>
51
52using namespace std;
53
54ClassImp(AliAnalysisTaskPhiEffMc)
55
56//________________________________________________________________________
57AliAnalysisTaskPhiEffMc::AliAnalysisTaskPhiEffMc(const char *name) : AliAnalysisTaskSE(name),
58 fAOD(0x0),
59 fIsMC(0),
60 fOutput(0x0),
61 fHelperPID(0x0),
62 fTrackCuts(0x0),
ad33cc0f 63 fEventCuts(0x0),
6f025d2b 64 fPtCut(0.),
65 fDoPID(kTRUE)
3722909b 66{
67 // Default constructor
68
69
70 DefineInput(0, TChain::Class());
71 DefineOutput(1, TList::Class());
72 DefineOutput(2, AliHelperPID::Class());
73 DefineOutput(3, AliSpectraAODEventCuts::Class());
74 DefineOutput(4, AliSpectraAODTrackCuts::Class());
75}
76//________________________________________________________________________
77//________________________________________________________________________
78void AliAnalysisTaskPhiEffMc::UserCreateOutputObjects()
79{
80 Printf("\n\n\n\n\n\n In CreateOutput Object:");
81
82 if (!fTrackCuts) AliFatal("Track Cuts should be set in the steering macro");
83 if (!fEventCuts) AliFatal("Event Cuts should be set in the steering macro");
84 if (!fHelperPID) AliFatal("HelperPID should be set in the steering macro");
85
86 fOutput = new TList();
87 fOutput->SetOwner();
88 fOutput->SetName("BlaBla");
89
90 // event histogram
91 const Int_t nEventDim = 4;
92 // cent vz MCmult RecoMult
93 Int_t nEventBins[4] = { 10, 41, 50, 50};
94 Double_t nEventMin[4] = { 0, -10, 0, 0};
95 Double_t nEventMax[4] = {100, 10, 100, 100};
96
97 THnSparseF* hEvent = new THnSparseF("hEvent", "hEvent", nEventDim, nEventBins, nEventMin, nEventMax);
98 hEvent->GetAxis(0)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
99 hEvent->GetAxis(1)->SetTitle("v_{z} (cm)");
100 hEvent->GetAxis(2)->SetTitle("# MC particles");
101 hEvent->GetAxis(3)->SetTitle("# reconstructed tracks");
102 fOutput->Add(hEvent);
103
104 TH3F* hKcorr = new TH3F("hKcorr","hKcorr",100,0,10,100,0,10,100,0,10);
105 hKcorr->GetXaxis()->SetTitle("#phi p_{T} (GeV/c)");
106 hKcorr->GetYaxis()->SetTitle("k+ p_{T} (GeV/c)");
107 hKcorr->GetZaxis()->SetTitle("k- p_{T} (GeV/c)");
108 fOutput->Add(hKcorr);
109
110 // single charged particles -- bins for THnSparse histograms
111 const Int_t nTrackDim = 6;
112 // PID ID, pt, y, cent, eta, phi
113 Int_t nTrackBins[nTrackDim] = { 7, 50, 20, 10, 20, 30};
114 Double_t nTrackMin[nTrackDim] = {-3.5, 0, -1, 0, -1, 0};
115 Double_t nTrackMax[nTrackDim] = { 3.5, 5, 1, 100, 1, 2*TMath::Pi()};
116
117 // single charged particles -- Monte Carlo particles
118 THnSparseF* hTrackMc = new THnSparseF("hTrackMc", "hTrackMc", nTrackDim, nTrackBins, nTrackMin, nTrackMax);
119 hTrackMc->GetAxis(0)->SetTitle("PID ID * Charge");
120 hTrackMc->GetAxis(1)->SetTitle("p_{T} (GeV/c)");
121 hTrackMc->GetAxis(2)->SetTitle("y");
122 hTrackMc->GetAxis(3)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
123 hTrackMc->GetAxis(4)->SetTitle("#eta");
124 hTrackMc->GetAxis(5)->SetTitle("#phi (rad)");
125 fOutput->Add(hTrackMc);
126
127 // single charged particles -- reconstructed tracks
128 THnSparseF* hTrackReco = new THnSparseF("hTrackReco", "hTrackReco", nTrackDim, nTrackBins, nTrackMin, nTrackMax);
129 hTrackReco->GetAxis(0)->SetTitle("PID ID * Charge");
130 hTrackReco->GetAxis(1)->SetTitle("p_{T} (GeV/c)");
131 hTrackReco->GetAxis(2)->SetTitle("y");
132 hTrackReco->GetAxis(3)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
133 hTrackReco->GetAxis(4)->SetTitle("#eta");
134 hTrackReco->GetAxis(5)->SetTitle("#phi (rad)");
135 fOutput->Add(hTrackReco);
136
137 // single charged particles -- Monte Carlo particles matched to reconstructed tracks
138 THnSparseF* hTrackMatch = new THnSparseF("hTrackMatch", "hTrackMatch", nTrackDim, nTrackBins, nTrackMin, nTrackMax);
139 hTrackMatch->GetAxis(0)->SetTitle("PID ID * Charge");
140 hTrackMatch->GetAxis(1)->SetTitle("p_{T} (GeV/c)");
141 hTrackMatch->GetAxis(2)->SetTitle("y");
142 hTrackMatch->GetAxis(3)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
143 hTrackMatch->GetAxis(4)->SetTitle("#eta");
144 hTrackMatch->GetAxis(5)->SetTitle("#phi (rad)");
145 fOutput->Add(hTrackMatch);
146
147 // kaon pairs -- bins for THnSparse histograms
148 const Int_t nPairDim = 7;
149 // InvMass, pt, y, cent, eta, phi, pair ID
150 Int_t nPairBins[nPairDim] = { 100, 50, 20, 10, 20, 30, 3};
ad33cc0f 151 Double_t nPairMin[nPairDim] = {0.98, 0, -1, 0, -1, 0, -0.5};
152 Double_t nPairMax[nPairDim] = { 1.1, 5, 1, 100, 1, 2*TMath::Pi(), 2.5};
3722909b 153 // pair ID = 0 unlike sign k+k-
154 // 1 like sign pos k+k+
ad33cc0f 155 // 2 like sign neg k-k-
3722909b 156
157 // kaon pairs -- Monte Carlo particles -- real phi's
158 THnSparseF* hPairMcPhi = new THnSparseF("hPairMcPhi", "hPairMcPhi", nPairDim, nPairBins, nPairMin, nPairMax);
159 hPairMcPhi->GetAxis(0)->SetTitle("Invariant Mass (GeV/c/c)");
160 hPairMcPhi->GetAxis(1)->SetTitle("p_{T} (GeV/c)");
161 hPairMcPhi->GetAxis(2)->SetTitle("y");
162 hPairMcPhi->GetAxis(3)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
163 hPairMcPhi->GetAxis(4)->SetTitle("#eta");
164 hPairMcPhi->GetAxis(5)->SetTitle("#phi (rad)");
165 hPairMcPhi->GetAxis(6)->SetTitle("pair ID");
166 fOutput->Add(hPairMcPhi);
167
168 // kaon pairs -- Monte Carlo particles -- real phi's with kaon daughters that pass pt and eta cuts
169 THnSparseF* hPairMcPhiCuts = new THnSparseF("hPairMcPhiCuts", "hPairMcPhiCuts", nPairDim, nPairBins, nPairMin, nPairMax);
170 hPairMcPhiCuts->GetAxis(0)->SetTitle("Invariant Mass (GeV/c/c)");
171 hPairMcPhiCuts->GetAxis(1)->SetTitle("p_{T} (GeV/c)");
172 hPairMcPhiCuts->GetAxis(2)->SetTitle("y");
173 hPairMcPhiCuts->GetAxis(3)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
174 hPairMcPhiCuts->GetAxis(4)->SetTitle("#eta");
175 hPairMcPhiCuts->GetAxis(5)->SetTitle("#phi (rad)");
176 hPairMcPhiCuts->GetAxis(6)->SetTitle("pair ID");
177 fOutput->Add(hPairMcPhiCuts);
178
179 // kaon pairs -- Monte Carlo particles -- phi's reconstructed from MC kaons
180 THnSparseF* hPairMc = new THnSparseF("hPairMc", "hPairMc", nPairDim, nPairBins, nPairMin, nPairMax);
181 hPairMc->GetAxis(0)->SetTitle("Invariant Mass (GeV/c/c)");
182 hPairMc->GetAxis(1)->SetTitle("p_{T} (GeV/c)");
183 hPairMc->GetAxis(2)->SetTitle("y");
184 hPairMc->GetAxis(3)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
185 hPairMc->GetAxis(4)->SetTitle("#eta");
186 hPairMc->GetAxis(5)->SetTitle("#phi (rad)");
187 hPairMc->GetAxis(6)->SetTitle("pair ID");
188 fOutput->Add(hPairMc);
189
190 // kaon pairs -- reconstructed tracks
191 THnSparseF* hPairReco = new THnSparseF("hPairReco", "hPairReco", nPairDim, nPairBins, nPairMin, nPairMax);
192 hPairReco->GetAxis(0)->SetTitle("Invariant Mass (GeV/c/c)");
193 hPairReco->GetAxis(1)->SetTitle("p_{T} (GeV/c)");
194 hPairReco->GetAxis(2)->SetTitle("y");
195 hPairReco->GetAxis(3)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
196 hPairReco->GetAxis(4)->SetTitle("#eta");
197 hPairReco->GetAxis(5)->SetTitle("#phi (rad)");
198 hPairReco->GetAxis(6)->SetTitle("pair ID");
199 fOutput->Add(hPairReco);
200
201 // kaon pairs -- Monte Carlo particles matched to reconstructed tracks
202 THnSparseF* hPairMatch = new THnSparseF("hPairMatch", "hPairMatch", nPairDim, nPairBins, nPairMin, nPairMax);
203 hPairMatch->GetAxis(0)->SetTitle("Invariant Mass (GeV/c/c)");
204 hPairMatch->GetAxis(1)->SetTitle("p_{T} (GeV/c)");
205 hPairMatch->GetAxis(2)->SetTitle("y");
206 hPairMatch->GetAxis(3)->SetTitle(Form("%s cent",fEventCuts->GetCentralityMethod().Data()));
207 hPairMatch->GetAxis(4)->SetTitle("#eta");
208 hPairMatch->GetAxis(5)->SetTitle("#phi (rad)");
209 hPairMatch->GetAxis(6)->SetTitle("pair ID");
210 fOutput->Add(hPairMatch);
211
212 PostData(1, fOutput);
213 PostData(2, fHelperPID);
214 PostData(3, fEventCuts);
215 PostData(4, fTrackCuts);
216}
217
218//________________________________________________________________________
219void AliAnalysisTaskPhiEffMc::UserExec(Option_t *)
220{
221 // main event loop
222 fAOD = dynamic_cast<AliAODEvent*>(fInputEvent);
223 if (!fAOD) {
224 AliWarning("ERROR: AliAODEvent not available \n");
225 return;
226 }
227
228 if (strcmp(fAOD->ClassName(), "AliAODEvent"))
229 {
230 AliFatal("Not processing AODs");
231 }
232
233 if(!fEventCuts->IsSelected(fAOD,fTrackCuts))return;//event selection
234
235 Double_t cent = fEventCuts->GetCent();
236
237 THnSparseF* hEvent = (THnSparseF*)fOutput->FindObject("hEvent");
238 THnSparseF* hTrackMc = (THnSparseF*)fOutput->FindObject("hTrackMc");
239 THnSparseF* hTrackReco = (THnSparseF*)fOutput->FindObject("hTrackReco");
240 THnSparseF* hTrackMatch = (THnSparseF*)fOutput->FindObject("hTrackMatch");
241 THnSparseF* hPairMcPhi = (THnSparseF*)fOutput->FindObject("hPairMcPhi");
242 THnSparseF* hPairMcPhiCuts = (THnSparseF*)fOutput->FindObject("hPairMcPhiCuts");
243 THnSparseF* hPairMc = (THnSparseF*)fOutput->FindObject("hPairMc");
244 THnSparseF* hPairReco = (THnSparseF*)fOutput->FindObject("hPairReco");
245 THnSparseF* hPairMatch = (THnSparseF*)fOutput->FindObject("hPairMatch");
246 TH3F* hKcorr = (TH3F*)fOutput->FindObject("hKcorr");
247
248 TObjArray* kaonsPosMc = new TObjArray();
249 TObjArray* kaonsNegMc = new TObjArray();
250 TObjArray* kaonsPosData = new TObjArray();
251 TObjArray* kaonsNegData = new TObjArray();
252 TObjArray* kaonsPosGen = new TObjArray();
253 TObjArray* kaonsNegGen = new TObjArray();
254
255 Int_t nMc = 0; // number of charged MC particles which satisfy cuts (except PID)
256 Int_t nReco = 0; // number of reco tracks which satisfy cuts (except PID)
257
258 //MC Loop
259 TClonesArray *arrayMC = 0;
260 if (fIsMC)
261 {
262 arrayMC = (TClonesArray*) fAOD->GetList()->FindObject(AliAODMCParticle::StdBranchName());
263 if (!arrayMC) {
264 AliFatal("Error: MC particles branch not found!\n");
265 }
266
267
268 Int_t nMC = arrayMC->GetEntries();
269 for (Int_t iMC = 0; iMC < nMC; iMC++)
270 {
271 AliAODMCParticle *partMC = (AliAODMCParticle*) arrayMC->At(iMC);
272
ad33cc0f 273 if(partMC->Pt()<fPtCut) continue;
274 if(partMC->Eta()>fTrackCuts->GetEtaMax() || partMC->Eta()<fTrackCuts->GetEtaMin() ) continue;
3722909b 275
276 // PDG codes: pion(211), kaon(+/-321), proton(2212), phi(333)
277
278 // make pt spectrum of only MC phis that decay to k+k-
279 if(partMC->GetPdgCode()==333)
280 {
281 if(partMC->GetNDaughters()==2)
282 {
8ffdfbb4 283 if(TMath::Abs(((AliAODMCParticle*) arrayMC->At(TMath::Abs(partMC->GetDaughter(0))))->GetPdgCode()) == 321 && TMath::Abs(((AliAODMCParticle*) arrayMC->At(TMath::Abs(partMC->GetDaughter(1))))->GetPdgCode()) == 321)
3722909b 284 {
8ffdfbb4 285 AliAODMCParticle *d1 = (AliAODMCParticle*) arrayMC->At(TMath::Abs(partMC->GetDaughter(0)));
286 AliAODMCParticle *d2 = (AliAODMCParticle*) arrayMC->At(TMath::Abs(partMC->GetDaughter(1)));
3722909b 287 if(d1->Charge() > 0) hKcorr->Fill(partMC->Pt(),d1->Pt(),d2->Pt());
288 else hKcorr->Fill(partMC->Pt(),d2->Pt(),d1->Pt());
289 TLorentzVector *d3 = (TLorentzVector*)makePhi(d1,d2);
290 // InvMass, pt, y, eta, phi, pair ID
291 Double_t invMass = (d3->M2() > 0 ? sqrt(d3->M2()) : 0);
292 if(invMass < 1.11)
293 {
294 Double_t varfill1[7] = {invMass, d3->Pt(), d3->Rapidity(), cent, d3->Eta(), (d3->Phi() > 0 ? d3->Phi() : d3->Phi()+2*TMath::Pi()), 0};
295 hPairMcPhi->Fill(varfill1);
ad33cc0f 296 if(d1->Pt()>fPtCut && d2->Pt()>fPtCut && d1->Eta()<fTrackCuts->GetEtaMax() && d1->Eta()>fTrackCuts->GetEtaMin() && d2->Eta()<fTrackCuts->GetEtaMax() && d2->Eta()>fTrackCuts->GetEtaMin())
3722909b 297 hPairMcPhiCuts->Fill(varfill1);
298 }
299 delete d3;
300 }
301 }
302 }
303
304 if(partMC->Charge()==0) continue; // remove neutrals
305 if(!partMC->IsPhysicalPrimary()) continue; // need to remove all non-final state particles
306
307 nMc++;
308
309 Int_t mcID = fHelperPID->GetParticleSpecies(partMC);
6f025d2b 310 if(fDoPID && (mcID>3 || mcID < -3)) continue;
3722909b 311 // PID ID, pt, y, eta, phi
2942f542 312 Double_t varfill2[6] = {static_cast<Double_t>((partMC->Charge() > 0 ? mcID+1 : -1*(mcID+1))), partMC->Pt(), partMC->Y(), cent, partMC->Eta(), partMC->Phi()};
3722909b 313 hTrackMc->Fill(varfill2);
314
6f025d2b 315 if(!fDoPID || mcID == 1)
3722909b 316 {
317 if(partMC->Charge() > 0) kaonsPosMc->Add(partMC);
318 else if(partMC->Charge() < 0) kaonsNegMc->Add(partMC);
319 }
320
321 } // end MC track loop
322
323 UnlikeSign(kaonsPosMc,kaonsNegMc,hPairMc,cent);
324 LikeSign(kaonsPosMc,kaonsNegMc,hPairMc,cent);
325 }
326
327
328 //track loop
329 for (Int_t iTracks = 0; iTracks < fAOD->GetNumberOfTracks(); iTracks++) {
f15c1f69 330 AliAODTrack* track = dynamic_cast<AliAODTrack*>(fAOD->GetTrack(iTracks));
331 if(!track) AliFatal("Not a standard AOD");
6f025d2b 332 if (!fTrackCuts->IsSelected(track,kTRUE)) continue;
3722909b 333 if(track->Charge()==0) continue;
ad33cc0f 334 if(track->Pt()<fPtCut) continue;
335 if(track->Eta()>fTrackCuts->GetEtaMax() || track->Eta()<fTrackCuts->GetEtaMin()) continue;
3722909b 336
337 nReco++;
338
339 Int_t dataID=fHelperPID->GetParticleSpecies(track,kTRUE);
6f025d2b 340 if(fDoPID && (dataID>3 || dataID < -3)) continue;
3722909b 341
342 // PID ID, pt, y, eta, phi
2942f542 343 Double_t varfill3[6] = {static_cast<Double_t>((track->Charge() > 0 ? dataID+1 : -1*(dataID+1))), track->Pt(), track->Y(), cent, track->Eta(), track->Phi()};
3722909b 344 hTrackReco->Fill(varfill3);
345
6f025d2b 346 if(!fDoPID || dataID==1)
3722909b 347 {
348 if(track->Charge() > 0) kaonsPosData->Add(track);
349 else if(track->Charge() < 0) kaonsNegData->Add(track);
350 }
351
352 if (fIsMC)
353 {
354 Int_t mcLabel = track->GetLabel();
355 AliAODMCParticle* tempMC = (AliAODMCParticle*) arrayMC->At(TMath::Abs(mcLabel));
356 if(!tempMC)
357 {
358 AliError("Cannot get MC particle");
359 continue;
360 }
361
362 Int_t genID = fHelperPID->GetParticleSpecies(tempMC);
6f025d2b 363 if(fDoPID && (genID != dataID)) continue;
364 if(fDoPID && (genID>3 || genID < -3)) continue;
3722909b 365
366 // PID ID, pt, y, eta, phi
2942f542 367 Double_t varfill4[6] = {static_cast<Double_t>((track->Charge() > 0 ? genID+1 : -1*(genID+1))), track->Pt(), track->Y(), cent, track->Eta(), track->Phi()};
3722909b 368 hTrackMatch->Fill(varfill4);
369
370 if(genID==1)
371 {
ad33cc0f 372 Int_t motherId = TMath::Abs(tempMC->GetMother());
373
374 AliAODMCParticle* genMother = (AliAODMCParticle*)arrayMC->At(motherId);
375 if(!genMother) continue;
376
377 if(genMother->GetPdgCode() != 333) continue;
378
379 if(track->Charge() > 0)
3722909b 380 {
ad33cc0f 381 for(Int_t k = 0; k < kaonsNegGen->GetEntriesFast(); k++)
3722909b 382 {
ad33cc0f 383 AliVParticle* tempGenMatch = (AliVParticle*)kaonsNegGen->UncheckedAt(k);
384 AliAODMCParticle* tempMatchMC = (AliAODMCParticle*) arrayMC->At(TMath::Abs(tempGenMatch->GetLabel()));
385 if(!tempMatchMC) continue;
386 if(tempMatchMC->GetMother() != motherId) continue;
387
388 TLorentzVector*c = (TLorentzVector*)makePhi(track,tempGenMatch);
389 Double_t invMass = (c->M2() > 0 ? sqrt(c->M2()) : 0);
390 if(invMass < 1.11)
3722909b 391 {
ad33cc0f 392 Double_t fillgen[7] = {invMass, c->Pt(), c->Rapidity(), cent, c->Eta(), (c->Phi() > 0 ? c->Phi() : c->Phi()+2*TMath::Pi()), 0};
393 hPairMatch->Fill(fillgen);
3722909b 394 }
ad33cc0f 395 delete c;
396 }
397 }
398 else if(track->Charge() < 0)
399 {
400 for(Int_t k = 0; k < kaonsPosGen->GetEntriesFast(); k++)
401 {
402 AliVParticle* tempGenMatch = (AliVParticle*)kaonsPosGen->UncheckedAt(k);
403 AliAODMCParticle* tempMatchMC = (AliAODMCParticle*) arrayMC->At(TMath::Abs(tempGenMatch->GetLabel()));
404 if(!tempMatchMC) continue;
405 if(tempMatchMC->GetMother() != motherId) continue;
406
407 TLorentzVector*c = (TLorentzVector*)makePhi(track,tempGenMatch);
408 Double_t invMass = (c->M2() > 0 ? sqrt(c->M2()) : 0);
409 if(invMass < 1.11)
3722909b 410 {
ad33cc0f 411 Double_t fillgen2[7] = {invMass, c->Pt(), c->Rapidity(), cent, c->Eta(), (c->Phi() > 0 ? c->Phi() : c->Phi()+2*TMath::Pi()), 0};
412 hPairMatch->Fill(fillgen2);
3722909b 413 }
ad33cc0f 414 delete c;
3722909b 415 }
416 }
417
418 if(track->Charge() > 0) kaonsPosGen->Add(track);
419 else if(track->Charge() < 0) kaonsNegGen->Add(track);
420 }
421 }
422
423 } // end loop on tracks
424
425 UnlikeSign(kaonsPosData,kaonsNegData,hPairReco,cent);
426 LikeSign(kaonsPosData,kaonsNegData,hPairReco,cent);
427
2942f542 428 Double_t varfill5[4] = {cent, fAOD->GetPrimaryVertex()->GetZ(), static_cast<Double_t>(nMc), static_cast<Double_t>(nReco)};
3722909b 429 hEvent->Fill(varfill5);
430
431 kaonsPosMc->Clear();
432 kaonsNegMc->Clear();
433 kaonsPosData->Clear();
434 kaonsNegData->Clear();
435 kaonsPosGen->Clear();
436 kaonsNegGen->Clear();
437
438 if(kaonsPosMc) delete kaonsPosMc;
439 if(kaonsNegMc) delete kaonsNegMc;
440 if(kaonsPosData) delete kaonsPosData;
441 if(kaonsNegData) delete kaonsNegData;
442 if(kaonsPosGen) delete kaonsPosGen;
443 if(kaonsNegGen) delete kaonsNegGen;
444
445 PostData(1,fOutput);
446 PostData(2, fHelperPID);
447 PostData(3, fEventCuts);
448 PostData(4, fTrackCuts);
449 //Printf("............. end of Exec");
450
451}
452
453//_________________________________________________________________
454void AliAnalysisTaskPhiEffMc::Terminate(Option_t *)
455{
456 // Terminate analysis
457 //
458 fOutput = dynamic_cast<TList*>(GetOutputData(1));
459 if (!fOutput) {
460 printf("ERROR: fOutput not available\n");
461 return;
462 }
463
464 printf("AliAnalysisTaskPhiEffMc: Terminate() \n");
465
466}
467
468//_________________________________________________________________
469void AliAnalysisTaskPhiEffMc::UnlikeSign(TObjArray* kaonsPos, TObjArray* kaonsNeg, THnSparseF* h, Double_t cent)
470{
471 Int_t countPos = kaonsPos->GetEntriesFast();
472 Int_t countNeg = kaonsNeg->GetEntriesFast();
473
474 if(countPos+countNeg < 2) return;
475
476 for(Int_t cp = 0; cp < countPos; cp++) // form k+k- pairs and compute invariant mass
477 {
478 AliVParticle* temp1 = (AliVParticle*)kaonsPos->UncheckedAt(cp);
479 for(Int_t cn = 0; cn < countNeg; cn++)
480 {
481 AliVParticle* temp2 = (AliVParticle*)kaonsNeg->UncheckedAt(cn);
482 TLorentzVector*c = (TLorentzVector*)makePhi(temp1,temp2);
483 // InvMass, pt, y, eta, phi, pair ID
484 Double_t invMass = (c->M2() > 0 ? sqrt(c->M2()) : 0);
485 if(invMass < 1.11)
486 {
487 Double_t varfill[7] = {invMass, c->Pt(), c->Rapidity(), cent, c->Eta(), (c->Phi() > 0 ? c->Phi() : c->Phi()+2*TMath::Pi()), 0};
488 h->Fill(varfill);
489 }
490 delete c;
491 }
492 }
493}
494
495void AliAnalysisTaskPhiEffMc::LikeSign(TObjArray* kaonsPos, TObjArray* kaonsNeg, THnSparseF* h, Double_t cent)
496{
497 Int_t countPos = kaonsPos->GetEntriesFast();
498 Int_t countNeg = kaonsNeg->GetEntriesFast();
499
500 if(countPos < 2 && countNeg < 2) return;
501
502 for(Int_t cp = 0; cp < countPos; cp++) // form k+k+ pairs and compute invariant mass
503 {
504 AliVParticle* temp1 = (AliVParticle*)kaonsPos->UncheckedAt(cp);
505 for(Int_t cn = cp+1; cn < countPos; cn++)
506 {
507 AliVParticle* temp2 = (AliVParticle*)kaonsPos->UncheckedAt(cn);
508 TLorentzVector*c = (TLorentzVector*)makePhi(temp1,temp2);
509 // InvMass, pt, y, eta, phi, pair ID
510 Double_t invMass = (c->M2() > 0 ? sqrt(c->M2()) : 0);
511 if(invMass < 1.11)
512 {
513 //cout << "y = " << 0.5*log((c->E()+c->Pz())/(c->E()-c->Pz())) << " " << c->Rapidity() << endl;
514 //cout << "eta = " << -1.*log(tan(c->Theta()/2.)) << " " << c->Eta() << endl;
515 Double_t varfill1[7] = {invMass, c->Pt(), c->Rapidity(), cent, c->Eta(), (c->Phi() > 0 ? c->Phi() : c->Phi()+2*TMath::Pi()), 1};
516 h->Fill(varfill1);
517 }
518 delete c;
519 }
520 }
521 for(Int_t cp = 0; cp < countNeg; cp++) // form k-k- pairs and compute invariant mass
522 {
523 AliVParticle* temp1 = (AliVParticle*)kaonsNeg->UncheckedAt(cp);
524 for(Int_t cn = cp+1; cn < countNeg; cn++)
525 {
526 AliVParticle* temp2 = (AliVParticle*)kaonsNeg->UncheckedAt(cn);
527 TLorentzVector*c = (TLorentzVector*)makePhi(temp1,temp2);
528 Double_t invMass = (c->M2() > 0 ? sqrt(c->M2()) : 0);
529 if(invMass < 1.11)
530 {
ad33cc0f 531 Double_t varfill2[7] = {invMass, c->Pt(), c->Rapidity(), cent, c->Eta(), (c->Phi() > 0 ? c->Phi() : c->Phi()+2*TMath::Pi()), 2};
3722909b 532 h->Fill(varfill2);
533 }
534 delete c;
535 }
536 }
537}
538
539TLorentzVector* AliAnalysisTaskPhiEffMc::makePhi(AliVParticle* p1, AliVParticle* p2)
540{
541 TLorentzVector* a = new TLorentzVector(p1->Px(),p1->Py(),p1->Pz(),sqrt(pow(p1->P(),2)+pow(4.93676999999999977e-01, 2)));
542 TLorentzVector* b = new TLorentzVector(p2->Px(),p2->Py(),p2->Pz(),sqrt(pow(p2->P(),2)+pow(4.93676999999999977e-01, 2)));
543 TLorentzVector* c = new TLorentzVector((*a)+(*b));
544 delete a;
545 delete b;
546 return c;
547}
548