PWGUD/UPC/AliAnalysisTaskUpcPsi2s.cxx

   1 /*************************************************************************
   2 * Copyright(c) 1998-2008, 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 // c++ headers
  17 #include <iostream>
  18 #include <string.h>
  19
  20 // root headers
  21 #include "TH1I.h"
  22 #include "TTree.h"
  23 #include "TClonesArray.h"
  24 #include "TParticle.h"
  25 #include "TObjString.h"
  26 #include "TFile.h"
  27 #include "TDatabasePDG.h"
  28 #include "TLorentzVector.h"
  29
  30 // aliroot headers
  31 #include "AliAnalysisManager.h"
  32 #include "AliInputEventHandler.h"
  33 #include "AliESDEvent.h"
  34 #include "AliAODEvent.h"
  35 #include "AliMCEvent.h"
  36 #include "AliAODVZERO.h"
  37 #include "AliAODZDC.h"
  38 #include "AliESDVZERO.h"
  39 #include "AliESDZDC.h"
  40 #include "AliPIDResponse.h"
  41 #include "AliAODTrack.h"
  42 #include "AliAODPid.h"
  43 #include "AliAODVertex.h"
  44 #include "AliESDVertex.h"
  45 #include "AliMultiplicity.h"
  46 #include "AliESDtrack.h"
  47 #include "AliESDMuonTrack.h"
  48 #include "AliAODMCParticle.h"
  49 #include "AliMCParticle.h"
  50 #include "AliCentrality.h"
  51 #include "AliKFVertex.h"
  52 #include "AliExternalTrackParam.h"
  53 #include "AliTriggerAnalysis.h"
  54
  55 // my headers
  56 #include "AliAnalysisTaskUpcPsi2s.h"
  57
  58 ClassImp(AliAnalysisTaskUpcPsi2s);
  59
  60 using std::cout;
  61 using std::endl;
  62
  63 //trees for UPC analysis,
  64 // michal.broz@cern.ch
  65
  66 //_____________________________________________________________________________
  67 AliAnalysisTaskUpcPsi2s::AliAnalysisTaskUpcPsi2s()
  68   : AliAnalysisTaskSE(),fType(0),isMC(kFALSE),fRunTree(kTRUE),fRunHist(kTRUE),fRunSystematics(kFALSE),fPIDResponse(0),fJPsiTree(0),fPsi2sTree(0),
  69     fRunNum(0),fPerNum(0),fOrbNum(0),fL0inputs(0),fL1inputs(0),
  70     fTOFtrig1(0), fTOFtrig2(0),
  71     fVtxContrib(0),fVtxChi2(0),fVtxNDF(0),
  72     fBCrossNum(0),fNtracklets(0),fNLooseTracks(0),
  73     fZDCAenergy(0),fZDCCenergy(0),fV0Adecision(0),fV0Cdecision(0),
  74     fDataFilnam(0),fRecoPass(0),fEvtNum(0),
  75     fJPsiAODTracks(0),fJPsiESDTracks(0),fPsi2sAODTracks(0),fPsi2sESDTracks(0),fGenPart(0),
  76     fListTrig(0),fHistCcup4TriggersPerRun(0), fHistCcup7TriggersPerRun(0), fHistCcup2TriggersPerRun(0),fHistCint1TriggersPerRun(0),
  77     fHistZedTriggersPerRun(0),fHistCvlnTriggersPerRun(0), fHistMBTriggersPerRun(0),fHistCentralTriggersPerRun(0),fHistSemiCentralTriggersPerRun(0),
  78     fListHist(0),fHistNeventsJPsi(0),fHistTPCsignalJPsi(0),fHistDiLeptonPtJPsi(0),fHistDiElectronMass(0),fHistDiMuonMass(0),fHistDiLeptonMass(0),
  79     fHistNeventsPsi2s(0),fHistPsi2sMassVsPt(0),fHistPsi2sMassCoherent(0),
  80     fListSystematics(0),fListJPsiLoose(0),fListJPsiTight(0),fListPsi2sLoose(0),fListPsi2sTight(0)
  81
  82 {
  83
  84 //Dummy constructor
  85
  86 }//AliAnalysisTaskUpcPsi2s
  87
  88
  89 //_____________________________________________________________________________
  90 AliAnalysisTaskUpcPsi2s::AliAnalysisTaskUpcPsi2s(const char *name)
  91   : AliAnalysisTaskSE(name),fType(0),isMC(kFALSE),fRunTree(kTRUE),fRunHist(kTRUE),fRunSystematics(kFALSE),fPIDResponse(0),fJPsiTree(0),fPsi2sTree(0),
  92     fRunNum(0),fPerNum(0),fOrbNum(0),fL0inputs(0),fL1inputs(0),
  93     fTOFtrig1(0), fTOFtrig2(0),
  94     fVtxContrib(0),fVtxChi2(0),fVtxNDF(0),
  95     fBCrossNum(0),fNtracklets(0),fNLooseTracks(0),
  96     fZDCAenergy(0),fZDCCenergy(0),fV0Adecision(0),fV0Cdecision(0),
  97     fDataFilnam(0),fRecoPass(0),fEvtNum(0),
  98     fJPsiAODTracks(0),fJPsiESDTracks(0),fPsi2sAODTracks(0),fPsi2sESDTracks(0),fGenPart(0),
  99     fListTrig(0),fHistCcup4TriggersPerRun(0), fHistCcup7TriggersPerRun(0), fHistCcup2TriggersPerRun(0),fHistCint1TriggersPerRun(0),
 100     fHistZedTriggersPerRun(0),fHistCvlnTriggersPerRun(0), fHistMBTriggersPerRun(0),fHistCentralTriggersPerRun(0),fHistSemiCentralTriggersPerRun(0),
 101     fListHist(0),fHistNeventsJPsi(0),fHistTPCsignalJPsi(0),fHistDiLeptonPtJPsi(0),fHistDiElectronMass(0),fHistDiMuonMass(0),fHistDiLeptonMass(0),
 102     fHistNeventsPsi2s(0),fHistPsi2sMassVsPt(0),fHistPsi2sMassCoherent(0),
 103     fListSystematics(0),fListJPsiLoose(0),fListJPsiTight(0),fListPsi2sLoose(0),fListPsi2sTight(0)
 104
 105 {
 106
 107   // Constructor
 108   if( strstr(name,"ESD") ) fType = 0;
 109   if( strstr(name,"AOD") ) fType = 1;
 110
 111   Init();
 112
 113   DefineOutput(1, TTree::Class());
 114   DefineOutput(2, TTree::Class());
 115   DefineOutput(3, TList::Class());
 116   DefineOutput(4, TList::Class());
 117
 118 }//AliAnalysisTaskUpcPsi2s
 119
 120 //_____________________________________________________________________________
 121 void AliAnalysisTaskUpcPsi2s::Init()
 122 {
 123
 124   for(Int_t i=0; i<ntrg; i++) fTrigger[i] = kFALSE;
 125   for(Int_t i=0; i<4; i++) {
 126         fTOFphi[i] = -666;
 127         fPIDTPCMuon[i] = -666;
 128         fPIDTPCElectron[i] = -666;
 129         fPIDTPCPion[i] = -666;
 130         fPIDTPCKaon[i] = -666;
 131         fPIDTPCProton[i] = -666;
 132
 133         fPIDTOFMuon[i] = -666;
 134         fPIDTOFElectron[i] = -666;
 135         fPIDTOFPion[i] = -666;
 136         fPIDTOFKaon[i] = -666;
 137         fPIDTOFProton[i] = -666;
 138
 139         fTriggerInputsMC[i] = kFALSE;
 140         }
 141   for(Int_t i=0; i<3; i++){
 142         fVtxPos[i] = -666;
 143         fVtxErr[i] = -666;
 144         fKfVtxPos[i] = -666;
 145         }
 146
 147 }//Init
 148
 149 //_____________________________________________________________________________
 150 AliAnalysisTaskUpcPsi2s::~AliAnalysisTaskUpcPsi2s()
 151 {
 152   // Destructor
 153   if(fJPsiTree){
 154      delete fJPsiTree;
 155      fJPsiTree = 0x0;
 156   }
 157   if(fPsi2sTree){
 158      delete fPsi2sTree;
 159      fPsi2sTree = 0x0;
 160   }
 161   if(fListTrig){
 162      delete fListTrig;
 163      fListTrig = 0x0;
 164   }
 165   if(fListHist){
 166      delete fListHist;
 167      fListHist = 0x0;
 168   }
 169
 170 }//~AliAnalysisTaskUpcPsi2s
 171
 172
 173 //_____________________________________________________________________________
 174 void AliAnalysisTaskUpcPsi2s::UserCreateOutputObjects()
 175 {
 176   //PID response
 177   AliAnalysisManager *man = AliAnalysisManager::GetAnalysisManager();
 178   AliInputEventHandler *inputHandler = (AliInputEventHandler*) (man->GetInputEventHandler());
 179   fPIDResponse = inputHandler->GetPIDResponse();
 180
 181   //input file
 182   fDataFilnam = new TObjString();
 183   fDataFilnam->SetString("");
 184
 185     //tracks
 186   fJPsiAODTracks = new TClonesArray("AliAODTrack", 1000);
 187   fJPsiESDTracks = new TClonesArray("AliESDtrack", 1000);
 188   fPsi2sAODTracks = new TClonesArray("AliAODTrack", 1000);
 189   fPsi2sESDTracks = new TClonesArray("AliESDtrack", 1000);
 190   fGenPart = new TClonesArray("TParticle", 1000);
 191
 192   //output tree with JPsi candidate events
 193   fJPsiTree = new TTree("fJPsiTree", "fJPsiTree");
 194   fJPsiTree ->Branch("fRunNum", &fRunNum, "fRunNum/I");
 195   fJPsiTree ->Branch("fPerNum", &fPerNum, "fPerNum/i");
 196   fJPsiTree ->Branch("fOrbNum", &fOrbNum, "fOrbNum/i");
 197
 198   fJPsiTree ->Branch("fBCrossNum", &fBCrossNum, "fBCrossNum/s");
 199   fJPsiTree ->Branch("fTrigger", &fTrigger[0], Form("fTrigger[%i]/O", ntrg));
 200   fJPsiTree ->Branch("fL0inputs", &fL0inputs, "fL0inputs/i");
 201   fJPsiTree ->Branch("fL1inputs", &fL1inputs, "fL1inputs/i");
 202   fJPsiTree ->Branch("fNtracklets", &fNtracklets, "fNtracklets/s");
 203   fJPsiTree ->Branch("fNLooseTracks", &fNLooseTracks, "fNLooseTracks/s");
 204   fJPsiTree ->Branch("fVtxContrib", &fVtxContrib, "fVtxContrib/I");
 205
 206   fJPsiTree ->Branch("fTOFtrig1", &fTOFtrig1, "fTOFtrig1/O");
 207   fJPsiTree ->Branch("fTOFtrig2", &fTOFtrig2, "fTOFtrig2/O");
 208   fJPsiTree ->Branch("fTOFphi", &fTOFphi[0], "fTOFphi[4]/D");
 209
 210   fJPsiTree ->Branch("fPIDTPCMuon", &fPIDTPCMuon[0], "fPIDTPCMuon[4]/D");
 211   fJPsiTree ->Branch("fPIDTPCElectron", &fPIDTPCElectron[0], "fPIDTPCElectron[4]/D");
 212   fJPsiTree ->Branch("fPIDTPCPion", &fPIDTPCPion[0], "fPIDTPCPion[4]/D");
 213   fJPsiTree ->Branch("fPIDTPCKaon", &fPIDTPCKaon[0], "fPIDTPCKaon[4]/D");
 214   fJPsiTree ->Branch("fPIDTPCProton", &fPIDTPCProton[0], "fPIDTPCProton[4]/D");
 215
 216   fJPsiTree ->Branch("fPIDTOFMuon", &fPIDTOFMuon[0], "fPIDTOFMuon[4]/D");
 217   fJPsiTree ->Branch("fPIDTOFElectron", &fPIDTOFElectron[0], "fPIDTOFElectron[4]/D");
 218   fJPsiTree ->Branch("fPIDTOFPion", &fPIDTOFPion[0], "fPIDTOFPion[4]/D");
 219   fJPsiTree ->Branch("fPIDTOFKaon", &fPIDTOFKaon[0], "fPIDTOFKaon[4]/D");
 220   fJPsiTree ->Branch("fPIDTOFProton", &fPIDTOFProton[0], "fPIDTOFProton[4]/D");
 221
 222   fJPsiTree ->Branch("fVtxPos", &fVtxPos[0], "fVtxPos[3]/D");
 223   fJPsiTree ->Branch("fVtxErr", &fVtxErr[0], "fVtxErr[3]/D");
 224   fJPsiTree ->Branch("fVtxChi2", &fVtxChi2, "fVtxChi2/D");
 225   fJPsiTree ->Branch("fVtxNDF", &fVtxNDF, "fVtxNDF/D");
 226
 227   fJPsiTree ->Branch("fKfVtxPos", &fKfVtxPos[0], "fKfVtxPos[3]/D");
 228
 229   fJPsiTree ->Branch("fZDCAenergy", &fZDCAenergy, "fZDCAenergy/D");
 230   fJPsiTree ->Branch("fZDCCenergy", &fZDCCenergy, "fZDCCenergy/D");
 231   fJPsiTree ->Branch("fV0Adecision", &fV0Adecision, "fV0Adecision/I");
 232   fJPsiTree ->Branch("fV0Cdecision", &fV0Cdecision, "fV0Cdecision/I");
 233   fJPsiTree ->Branch("fDataFilnam", &fDataFilnam);
 234   fJPsiTree ->Branch("fRecoPass", &fRecoPass, "fRecoPass/S");
 235   fJPsiTree ->Branch("fEvtNum", &fEvtNum, "fEvtNum/L");
 236   if( fType == 0 ) {
 237     fJPsiTree ->Branch("fJPsiESDTracks", &fJPsiESDTracks);
 238   }
 239   if( fType == 1 ) {
 240     fJPsiTree ->Branch("fJPsiAODTracks", &fJPsiAODTracks);
 241   }
 242   if(isMC) {
 243     fJPsiTree ->Branch("fGenPart", &fGenPart);
 244     fJPsiTree ->Branch("fTriggerInputsMC", &fTriggerInputsMC[0], "fTriggerInputsMC[4]/O");
 245   }
 246
 247
 248  //output tree with Psi2s candidate events
 249   fPsi2sTree = new TTree("fPsi2sTree", "fPsi2sTree");
 250   fPsi2sTree ->Branch("fRunNum", &fRunNum, "fRunNum/I");
 251   fPsi2sTree ->Branch("fPerNum", &fPerNum, "fPerNum/i");
 252   fPsi2sTree ->Branch("fOrbNum", &fOrbNum, "fOrbNum/i");
 253
 254   fPsi2sTree ->Branch("fBCrossNum", &fBCrossNum, "fBCrossNum/s");
 255   fPsi2sTree ->Branch("fTrigger", &fTrigger[0], Form("fTrigger[%i]/O", ntrg));
 256   fPsi2sTree ->Branch("fL0inputs", &fL0inputs, "fL0inputs/i");
 257   fPsi2sTree ->Branch("fL1inputs", &fL1inputs, "fL1inputs/i");
 258   fPsi2sTree ->Branch("fNtracklets", &fNtracklets, "fNtracklets/s");
 259   fPsi2sTree ->Branch("fNLooseTracks", &fNLooseTracks, "fNLooseTracks/s");
 260   fPsi2sTree ->Branch("fVtxContrib", &fVtxContrib, "fVtxContrib/I");
 261
 262   fPsi2sTree ->Branch("fTOFtrig1", &fTOFtrig1, "fTOFtrig1/O");
 263   fPsi2sTree ->Branch("fTOFtrig2", &fTOFtrig2, "fTOFtrig2/O");
 264   fPsi2sTree ->Branch("fTOFphi", &fTOFphi[0], "fTOFphi[4]/D");
 265
 266   fPsi2sTree ->Branch("fPIDTPCMuon", &fPIDTPCMuon[0], "fPIDTPCMuon[4]/D");
 267   fPsi2sTree ->Branch("fPIDTPCElectron", &fPIDTPCElectron[0], "fPIDTPCElectron[4]/D");
 268   fPsi2sTree ->Branch("fPIDTPCPion", &fPIDTPCPion[0], "fPIDTPCPion[4]/D");
 269   fPsi2sTree ->Branch("fPIDTPCKaon", &fPIDTPCKaon[0], "fPIDTPCKaon[4]/D");
 270   fPsi2sTree ->Branch("fPIDTPCProton", &fPIDTPCProton[0], "fPIDTPCProton[4]/D");
 271
 272   fPsi2sTree ->Branch("fPIDTOFMuon", &fPIDTOFMuon[0], "fPIDTOFMuon[4]/D");
 273   fPsi2sTree ->Branch("fPIDTOFElectron", &fPIDTOFElectron[0], "fPIDTOFElectron[4]/D");
 274   fPsi2sTree ->Branch("fPIDTOFPion", &fPIDTOFPion[0], "fPIDTOFPion[4]/D");
 275   fPsi2sTree ->Branch("fPIDTOFKaon", &fPIDTOFKaon[0], "fPIDTOFKaon[4]/D");
 276   fPsi2sTree ->Branch("fPIDTOFProton", &fPIDTOFProton[0], "fPIDTOFProton[4]/D");
 277
 278   fPsi2sTree ->Branch("fVtxPos", &fVtxPos[0], "fVtxPos[3]/D");
 279   fPsi2sTree ->Branch("fVtxErr", &fVtxErr[0], "fVtxErr[3]/D");
 280   fPsi2sTree ->Branch("fVtxChi2", &fVtxChi2, "fVtxChi2/D");
 281   fPsi2sTree ->Branch("fVtxNDF", &fVtxNDF, "fVtxNDF/D");
 282
 283   fPsi2sTree ->Branch("fKfVtxPos", &fKfVtxPos[0], "fKfVtxPos[3]/D");
 284
 285   fPsi2sTree ->Branch("fZDCAenergy", &fZDCAenergy, "fZDCAenergy/D");
 286   fPsi2sTree ->Branch("fZDCCenergy", &fZDCCenergy, "fZDCCenergy/D");
 287   fPsi2sTree ->Branch("fV0Adecision", &fV0Adecision, "fV0Adecision/I");
 288   fPsi2sTree ->Branch("fV0Cdecision", &fV0Cdecision, "fV0Cdecision/I");
 289   fPsi2sTree ->Branch("fDataFilnam", &fDataFilnam);
 290   fPsi2sTree ->Branch("fRecoPass", &fRecoPass, "fRecoPass/S");
 291   fPsi2sTree ->Branch("fEvtNum", &fEvtNum, "fEvtNum/L");
 292   if( fType == 0 ) {
 293     fPsi2sTree ->Branch("fPsi2sESDTracks", &fPsi2sESDTracks);
 294   }
 295   if( fType == 1 ) {
 296     fPsi2sTree ->Branch("fPsi2sAODTracks", &fPsi2sAODTracks);
 297   }
 298   if(isMC) {
 299     fPsi2sTree ->Branch("fGenPart", &fGenPart);
 300     fPsi2sTree ->Branch("fTriggerInputsMC", &fTriggerInputsMC[0], "fTriggerInputsMC[4]/O");
 301   }
 302
 303
 304   fListTrig = new TList();
 305   fListTrig ->SetOwner();
 306
 307   fHistCcup4TriggersPerRun = new TH1D("fHistCcup4TriggersPerRun", "fHistCcup4TriggersPerRun", 33000, 167000.5, 200000.5);
 308   fListTrig->Add(fHistCcup4TriggersPerRun);
 309
 310   fHistCcup7TriggersPerRun = new TH1D("fHistCcup7TriggersPerRun", "fHistCcup7TriggersPerRun", 33000, 167000.5, 200000.5);
 311   fListTrig->Add(fHistCcup7TriggersPerRun);
 312
 313   fHistCcup2TriggersPerRun = new TH1D("fHistCcup2TriggersPerRun", "fHistCcup2TriggersPerRun", 33000, 167000.5, 200000.5);
 314   fListTrig->Add(fHistCcup2TriggersPerRun);
 315
 316   fHistCint1TriggersPerRun = new TH1D("fHistCint1TriggersPerRun", "fHistCint1TriggersPerRun", 33000, 167000.5, 200000.5);
 317   fListTrig->Add(fHistCint1TriggersPerRun);
 318
 319   fHistZedTriggersPerRun = new TH1D("fHistZedTriggersPerRun", "fHistZedTriggersPerRun", 33000, 167000.5, 200000.5);
 320   fListTrig->Add(fHistZedTriggersPerRun);
 321
 322   fHistCvlnTriggersPerRun = new TH1D("fHistCvlnTriggersPerRun", "fHistCvlnTriggersPerRun", 33000, 167000.5, 200000.5);
 323   fListTrig->Add(fHistCvlnTriggersPerRun);
 324
 325   fHistMBTriggersPerRun = new TH1D("fHistMBTriggersPerRun", "fHistMBTriggersPerRun", 33000, 167000.5, 200000.5);
 326   fListTrig->Add(fHistMBTriggersPerRun);
 327
 328   fHistCentralTriggersPerRun = new TH1D("fHistCentralTriggersPerRun", "fHistCentralTriggersPerRun", 33000, 167000.5, 200000.5);
 329   fListTrig->Add(fHistCentralTriggersPerRun);
 330
 331   fHistSemiCentralTriggersPerRun = new TH1D("fHistSemiCentralTriggersPerRun", "fHistSemiCentralTriggersPerRun", 33000, 167000.5, 200000.5);
 332   fListTrig->Add(fHistSemiCentralTriggersPerRun);
 333
 334   fListHist = new TList();
 335   fListHist ->SetOwner();
 336
 337   TString CutNameJPsi[13] = {"Analyzed","Triggered","Vertex cut","V0 decision","Neutron ZDC cut","Two good tracks",
 338                                 "Like sign","Oposite sign","One p_{T}>1", "Both p_{T}>1","PID","Dimuom","Dielectron"};
 339   fHistNeventsJPsi = new TH1D("fHistNeventsJPsi","fHistNeventsPsi2s",13,0.5,13.5);
 340   for (Int_t i = 0; i<13; i++) fHistNeventsJPsi->GetXaxis()->SetBinLabel(i+1,CutNameJPsi[i].Data());
 341   fListHist->Add(fHistNeventsJPsi);
 342
 343   fHistTPCsignalJPsi = new TH2D("fHistTPCsignalJPsi","fHistTPCsignalJPsi",240,0,120,240,0,120);
 344   fListHist->Add(fHistTPCsignalJPsi);
 345
 346   fHistDiLeptonPtJPsi = new TH2D("fHistDiLeptonPtJPsi","fHistDiLeptonPtJPsi",350,0,3.5,350,0,3.5);
 347   fListHist->Add(fHistDiLeptonPtJPsi);
 348
 349   fHistDiElectronMass = new TH1D("fHistDiElectronMass","Invariant mass of J/#psi candidates",100,2,5);
 350   fHistDiElectronMass->GetXaxis()->SetTitle("Invariant mass(e^{+}e^{-}) (GeV/c)");
 351   fListHist->Add(fHistDiElectronMass);
 352
 353   fHistDiMuonMass = new TH1D("fHistDiMuonMass","Invariant mass of J/#psi candidates",100,2,5);
 354   fHistDiMuonMass->GetXaxis()->SetTitle("Invariant mass(#mu^{+}#mu^{-}) (GeV/c)");
 355   fListHist->Add(fHistDiMuonMass);
 356
 357   fHistDiLeptonMass = new TH1D("fHistDiLeptonMass","Invariant mass of J/#psi candidates",130,2.1,6.0);
 358   fHistDiLeptonMass->GetXaxis()->SetTitle("Invariant mass(l^{+}l^{-}) (GeV/c)");
 359   fListHist->Add(fHistDiLeptonMass);
 360
 361   TString CutNamePsi2s[14] = {"Analyzed","Triggered","Vertex cut","V0 decision","Neutron ZDC cut","Four good tracks",
 362                                 "DiLepton - DiPion","Like sign leptons","Like sign pions","Like sign both","Oposite sign","PID","Dimuom","Dielectron"};
 363
 364   fHistNeventsPsi2s = new TH1D("fHistNeventsPsi2s","fHistNeventsPsi2s",14,0.5,14.5);
 365   for (Int_t i = 0; i<14; i++) fHistNeventsPsi2s->GetXaxis()->SetBinLabel(i+1,CutNamePsi2s[i].Data());
 366   fListHist->Add(fHistNeventsPsi2s);
 367
 368   fHistPsi2sMassVsPt = new TH2D("fHistPsi2sMassVsPt","Mass vs p_{T} of #psi(2s) candidates",100,3,6,50,0,5);
 369   fHistPsi2sMassVsPt->GetXaxis()->SetTitle("Invariant mass(l^{+}l^{-}#pi^{+}#pi^{-}) (GeV/c)");
 370   fHistPsi2sMassVsPt->GetYaxis()->SetTitle("#it{p}_{T} (GeV/#it{c})");
 371   fListHist->Add(fHistPsi2sMassVsPt);
 372
 373   fHistPsi2sMassCoherent = new TH1D("fHistPsi2sMassAllCoherent","Invariant mass of coherent #psi(2s) candidates",50,2.5,5.5);
 374   fHistPsi2sMassCoherent->GetXaxis()->SetTitle("Invariant mass(l^{+}l^{-}#pi^{+}#pi^{-}) (GeV/c)");
 375   fListHist->Add(fHistPsi2sMassCoherent);
 376
 377   fListSystematics = new TList();
 378   fListSystematics->SetOwner();
 379   fListSystematics->SetName("fListSystematics");
 380   fListHist->Add(fListSystematics);
 381   InitSystematics();
 382
 383
 384   PostData(1, fJPsiTree);
 385   PostData(2, fPsi2sTree);
 386   PostData(3, fListTrig);
 387   PostData(4, fListHist);
 388
 389 }//UserCreateOutputObjects
 390
 391 //_____________________________________________________________________________
 392 void AliAnalysisTaskUpcPsi2s::InitSystematics()
 393 {
 394
 395 fListJPsiLoose = new TList();
 396 fListJPsiLoose->SetOwner();
 397 fListJPsiLoose->SetName("JPsiLoose");
 398 fListSystematics->Add(fListJPsiLoose);
 399
 400 TH1D *fHistJPsiNClusLoose = new TH1D("JPsiNClusLoose","Invariant mass of J/#psi candidates",130,2.1,6.0);
 401 fListJPsiLoose->Add(fHistJPsiNClusLoose);
 402
 403 TH1D *fHistJPsiChi2Loose = new TH1D("JPsiChi2Loose","Invariant mass of J/#psi candidates",130,2.1,6.0);
 404 fListJPsiLoose->Add(fHistJPsiChi2Loose);
 405
 406 TH1D *fHistJPsiDCAzLoose = new TH1D("JPsiDCAzLoose","Invariant mass of J/#psi candidates",130,2.1,6.0);
 407 fListJPsiLoose->Add(fHistJPsiDCAzLoose);
 408
 409 TH1D *fHistJPsiDCAxyLoose = new TH1D("JPsiDCAxyLoose","Invariant mass of J/#psi candidates",130,2.1,6.0);
 410 fListJPsiLoose->Add(fHistJPsiDCAxyLoose);
 411
 412 TH1D *fHistJPsiITShitsLoose = new TH1D("JPsiITShitsLoose","Invariant mass of J/#psi candidates",130,2.1,6.0);
 413 fListJPsiLoose->Add(fHistJPsiITShitsLoose);
 414
 415
 416 fListJPsiTight = new TList();
 417 fListJPsiTight->SetOwner();
 418 fListJPsiTight->SetName("JPsiTight");
 419 fListSystematics->Add(fListJPsiTight);
 420
 421 TH1D *fHistJPsiNClusTight = new TH1D("JPsiNClusTight","Invariant mass of J/#psi candidates",130,2.1,6.0);
 422 fListJPsiTight->Add(fHistJPsiNClusTight);
 423
 424 TH1D *fHistJPsiChi2Tight = new TH1D("JPsiChi2Tight","Invariant mass of J/#psi candidates",130,2.1,6.0);
 425 fListJPsiTight->Add(fHistJPsiChi2Tight);
 426
 427 TH1D *fHistJPsiDCAzTight = new TH1D("JPsiDCAzTight","Invariant mass of J/#psi candidates",130,2.1,6.0);
 428 fListJPsiTight->Add(fHistJPsiDCAzTight);
 429
 430 TH1D *fHistJPsiDCAxyTight = new TH1D("JPsiDCAxyTight","Invariant mass of J/#psi candidates",130,2.1,6.0);
 431 fListJPsiTight->Add(fHistJPsiDCAxyTight);
 432
 433
 434 fListPsi2sLoose = new TList();
 435 fListPsi2sLoose->SetOwner();
 436 fListPsi2sLoose->SetName("Psi2sLoose");
 437 fListSystematics->Add(fListPsi2sLoose);
 438
 439 TH1D *fHistPsi2sNClusLoose = new TH1D("Psi2sNClusLoose","Invariant mass of #psi(2S) candidates",50,2.5,5.5);
 440 fListPsi2sLoose->Add(fHistPsi2sNClusLoose);
 441
 442 TH1D *fHistPsi2sChi2Loose = new TH1D("Psi2sChi2Loose","Invariant mass of #psi(2S) candidates",50,2.5,5.5);
 443 fListPsi2sLoose->Add(fHistPsi2sChi2Loose);
 444
 445 TH1D *fHistPsi2sDCAzLoose = new TH1D("Psi2sDCAzLoose","Invariant mass of #psi(2S) candidates",50,2.5,5.5);
 446 fListPsi2sLoose->Add(fHistPsi2sDCAzLoose);
 447
 448 TH1D *fHistPsi2sDCAxyLoose = new TH1D("Psi2sDCAxyLoose","Invariant mass of #psi(2S) candidates",50,2.5,5.5);
 449 fListPsi2sLoose->Add(fHistPsi2sDCAxyLoose);
 450
 451 TH1D *fHistPsi2sITShitsLoose = new TH1D("Psi2sITShitsLoose","Invariant mass of #psi(2S) candidates",50,2.5,5.5);
 452 fListPsi2sLoose->Add(fHistPsi2sITShitsLoose);
 453
 454
 455 fListPsi2sTight = new TList();
 456 fListPsi2sTight->SetOwner();
 457 fListPsi2sTight->SetName("Psi2sTight");
 458 fListSystematics->Add(fListPsi2sTight);
 459
 460 TH1D *fHistPsi2sNClusTight = new TH1D("Psi2sNClusTight","Invariant mass of #psi(2S) candidates",50,2.5,5.5);
 461 fListPsi2sTight->Add(fHistPsi2sNClusTight);
 462
 463 TH1D *fHistPsi2sChi2Tight = new TH1D("Psi2sChi2Tight","Invariant mass of #psi(2S) candidates",50,2.5,5.5);
 464 fListPsi2sTight->Add(fHistPsi2sChi2Tight);
 465
 466 TH1D *fHistPsi2sDCAzTight = new TH1D("Psi2sDCAzTight","Invariant mass of #psi(2S) candidates",50,2.5,5.5);
 467 fListPsi2sTight->Add(fHistPsi2sDCAzTight);
 468
 469 TH1D *fHistPsi2sDCAxyTight = new TH1D("Psi2sDCAxyTight","Invariant mass of #psi(2S) candidates",50,2.5,5.5);
 470 fListPsi2sTight->Add(fHistPsi2sDCAxyTight);
 471
 472
 473 }
 474
 475 //_____________________________________________________________________________
 476 void AliAnalysisTaskUpcPsi2s::UserExec(Option_t *)
 477 {
 478
 479   //cout<<"#################### Next event ##################"<<endl;
 480
 481   if( fType == 0 ){
 482         RunESDtrig();
 483         if(fRunHist) RunESDhist();
 484         if(fRunTree) RunESDtree();
 485         }
 486
 487   if( fType == 1 ){
 488         RunAODtrig();
 489         if(fRunHist) RunAODhist();
 490         if(fRunTree) RunAODtree();
 491         }
 492
 493 }//UserExec
 494 //_____________________________________________________________________________
 495 void AliAnalysisTaskUpcPsi2s::RunAODtrig()
 496 {
 497
 498   //input event
 499   AliAODEvent *aod = (AliAODEvent*) InputEvent();
 500   if(!aod) return;
 501
 502   fRunNum = aod ->GetRunNumber();
 503   //Trigger
 504   TString trigger = aod->GetFiredTriggerClasses();
 505
 506   if(trigger.Contains("CCUP4-B")) fHistCcup4TriggersPerRun->Fill(fRunNum); //CCUP4 triggers
 507   if(trigger.Contains("CCUP7-B")) fHistCcup7TriggersPerRun->Fill(fRunNum); //CCUP7 triggers
 508   if(trigger.Contains("CCUP2-B")) fHistCcup2TriggersPerRun->Fill(fRunNum); //CCUP2 triggers
 509
 510   if(trigger.Contains("CINT1")) fHistCint1TriggersPerRun->Fill(fRunNum); //CINT1 triggers
 511
 512   if(trigger.Contains("CVLN_B2-B")) fHistCvlnTriggersPerRun->Fill(fRunNum); //CVLN triggers - synchronously downscaled
 513   if(trigger.Contains("CVLN_R1-B")) fHistCvlnTriggersPerRun->Fill(fRunNum); //CVLN triggers - randomly downscaled
 514
 515   fL1inputs = aod->GetHeader()->GetL1TriggerInputs();
 516   if(fL1inputs & (1 << 18)) fHistZedTriggersPerRun->Fill(fRunNum); //1ZED trigger inputs
 517
 518   //MB, Central and SemiCentral triggers
 519   AliCentrality *centrality = aod->GetCentrality();
 520   UInt_t selectionMask = ((AliInputEventHandler*)(AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler()))->IsEventSelected();
 521
 522   Double_t percentile = centrality->GetCentralityPercentileUnchecked("V0M");
 523   //Double_t percentile = centrality->GetCentralityPercentile("V0M");
 524
 525   if(((selectionMask & AliVEvent::kMB) == AliVEvent::kMB) && percentile<=80 && percentile>=0) fHistMBTriggersPerRun->Fill(fRunNum);
 526
 527   if(((selectionMask & AliVEvent::kCentral) == AliVEvent::kCentral) && percentile<=6 && percentile>=0 && (trigger.Contains("CVHN_R2-B"))) fHistCentralTriggersPerRun->Fill(fRunNum);
 528
 529   if(((selectionMask & AliVEvent::kSemiCentral) == AliVEvent::kSemiCentral) && percentile<=50 && percentile>=15) fHistSemiCentralTriggersPerRun->Fill(fRunNum);
 530
 531 PostData(3, fListTrig);
 532
 533 }
 534 //_____________________________________________________________________________
 535 void AliAnalysisTaskUpcPsi2s::RunAODhist()
 536 {
 537
 538   TDatabasePDG *pdgdat = TDatabasePDG::Instance();
 539
 540   TParticlePDG *partMuon = pdgdat->GetParticle( 13 );
 541   Double_t muonMass = partMuon->Mass();
 542
 543   TParticlePDG *partElectron = pdgdat->GetParticle( 11 );
 544   Double_t electronMass = partElectron->Mass();
 545
 546   TParticlePDG *partPion = pdgdat->GetParticle( 211 );
 547   Double_t pionMass = partPion->Mass();
 548
 549   //input event
 550   AliAODEvent *aod = (AliAODEvent*) InputEvent();
 551   if(!aod) return;
 552
 553  // cout<<"Event number: "<<((TTree*) GetInputData(0))->GetTree()->GetReadEntry()<<endl;
 554
 555   fHistNeventsJPsi->Fill(1);
 556   fHistNeventsPsi2s->Fill(1);
 557
 558   //Trigger
 559   TString trigger = aod->GetFiredTriggerClasses();
 560
 561   if(!isMC && !trigger.Contains("CCUP") ) return;
 562
 563   fHistNeventsJPsi->Fill(2);
 564   fHistNeventsPsi2s->Fill(2);
 565
 566   //primary vertex
 567   AliAODVertex *fAODVertex = aod->GetPrimaryVertex();
 568   fVtxContrib = fAODVertex->GetNContributors();
 569   if(fVtxContrib < 2) return;
 570
 571   fHistNeventsJPsi->Fill(3);
 572   fHistNeventsPsi2s->Fill(3);
 573
 574   //VZERO, ZDC
 575   AliAODVZERO *fV0data = aod ->GetVZEROData();
 576   AliAODZDC *fZDCdata = aod->GetZDCData();
 577
 578   fV0Adecision = fV0data->GetV0ADecision();
 579   fV0Cdecision = fV0data->GetV0CDecision();
 580   if(fV0Adecision != AliAODVZERO::kV0Empty || fV0Cdecision != AliAODVZERO::kV0Empty) return;
 581
 582   fHistNeventsJPsi->Fill(4);
 583   fHistNeventsPsi2s->Fill(4);
 584
 585   fZDCAenergy = fZDCdata->GetZNATowerEnergy()[0];
 586   fZDCCenergy = fZDCdata->GetZNCTowerEnergy()[0];
 587
 588   if( fZDCAenergy > 8200 || fZDCCenergy > 8200) return;
 589
 590   fHistNeventsJPsi->Fill(5);
 591   fHistNeventsPsi2s->Fill(5);
 592
 593   //Systematics - cut variation
 594   if(fRunSystematics) RunAODsystematics(aod);
 595
 596   //Two tracks loop
 597   Int_t nGoodTracks = 0;
 598   Int_t TrackIndex[5] = {-1,-1,-1,-1,-1};
 599
 600   TLorentzVector vLepton[4], vPion[4], vCandidate, vDilepton;
 601   Short_t qLepton[4], qPion[4];
 602   UInt_t nLepton=0, nPion=0, nHighPt=0, nSpdHits=0;
 603   Double_t fRecTPCsignal[5], fRecTPCsignalDist;
 604   Int_t fChannel = 0;
 605   Int_t mass[3]={-1,-1,-1};
 606   Double_t TrackPt[5]={0,0,0,0,0};
 607   Double_t MeanPt = -1;
 608
 609
 610   //Four track loop
 611   for(Int_t itr=0; itr<aod ->GetNumberOfTracks(); itr++) {
 612     AliAODTrack *trk = aod->GetTrack(itr);
 613     if( !trk ) continue;
 614     if(!(trk->TestFilterBit(1<<0))) continue;
 615
 616       if(!(trk->GetStatus() & AliESDtrack::kTPCrefit) ) continue;
 617       if(!(trk->GetStatus() & AliESDtrack::kITSrefit) ) continue;
 618       if(trk->GetTPCNcls() < 50)continue;
 619       if(trk->Chi2perNDF() > 4)continue;
 620       Double_t dca[2] = {0.0,0.0}, cov[3] = {0.0,0.0,0.0};
 621       AliAODTrack* trk_clone=(AliAODTrack*)trk->Clone("trk_clone");
 622       if(!trk_clone->PropagateToDCA(fAODVertex,aod->GetMagneticField(),300.,dca,cov)) continue;
 623       delete trk_clone;
 624       if(TMath::Abs(dca[1]) > 2) continue;
 625       Double_t cut_DCAxy = 4*(0.0182 + 0.0350/TMath::Power(trk->Pt(),1.01));
 626       if(TMath::Abs(dca[0]) > cut_DCAxy) continue;
 627       if((trk->HasPointOnITSLayer(0))||(trk->HasPointOnITSLayer(1))) nSpdHits++;
 628
 629       TrackIndex[nGoodTracks] = itr;
 630       TrackPt[nGoodTracks] = trk->Pt();
 631       nGoodTracks++;
 632
 633       if(nGoodTracks > 4) break;
 634   }//Track loop
 635
 636   nLepton=0; nPion=0; nHighPt=0;
 637   mass[0]= -1; mass[1]= -1, mass[2]= -1;
 638
 639   if(nGoodTracks == 4 && nSpdHits>1){
 640           MeanPt = GetMedian(TrackPt);
 641           fHistNeventsPsi2s->Fill(6);
 642           for(Int_t i=0; i<4; i++){
 643                 AliAODTrack *trk = aod->GetTrack(TrackIndex[i]);
 644
 645                 if(trk->Pt() > MeanPt){
 646                         fRecTPCsignal[nLepton] = trk->GetTPCsignal();
 647                         qLepton[nLepton] = trk->Charge();
 648                         if(fRecTPCsignal[nLepton] > 40 && fRecTPCsignal[nLepton] < 70){
 649                                         vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), muonMass);
 650                                         mass[nLepton] = 0;
 651                                         }
 652                         if(fRecTPCsignal[nLepton] > 70 && fRecTPCsignal[nLepton] < 100){
 653                                         vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), electronMass);
 654                                         mass[nLepton] = 1;
 655                                         }
 656                         nLepton++;
 657                         }
 658                 else{
 659                         qPion[nPion] = trk->Charge();
 660                         vPion[nPion].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), pionMass);
 661                         nPion++;
 662                         }
 663
 664                 if(nLepton > 2 || nPion > 2) break;
 665                 }
 666         if((nLepton == 2) && (nPion == 2)){
 667                 fHistNeventsPsi2s->Fill(7);
 668                 if(qLepton[0]*qLepton[1] > 0) fHistNeventsPsi2s->Fill(8);
 669                 if(qPion[0]*qPion[1] > 0) fHistNeventsPsi2s->Fill(9);
 670                 if((qLepton[0]*qLepton[1] > 0) && (qPion[0]*qPion[1] > 0)) fHistNeventsPsi2s->Fill(10);
 671                 if((qLepton[0]*qLepton[1] < 0) && (qPion[0]*qPion[1] < 0)){
 672                         fHistNeventsPsi2s->Fill(11);
 673                         if(mass[0] != -1 && mass[1] != -1) {
 674                                 fHistNeventsPsi2s->Fill(12);
 675                                 vCandidate = vLepton[0]+vLepton[1]+vPion[0]+vPion[1];
 676                                 vDilepton = vLepton[0]+vLepton[1];
 677                                 fHistPsi2sMassVsPt->Fill(vCandidate.M(),vCandidate.Pt());
 678                                 fRecTPCsignalDist = TMath::Sqrt(TMath::Power(fRecTPCsignal[0]-56,2)+TMath::Power(fRecTPCsignal[1]-56,2));
 679                                 if (fRecTPCsignalDist < 3.6*4.0) fChannel = -1;
 680                                 else {
 681                                         fRecTPCsignalDist = TMath::Sqrt(TMath::Power(fRecTPCsignal[0]-78,2)+TMath::Power(fRecTPCsignal[1]-78,2));
 682                                         if (fRecTPCsignalDist < 4.1*4.0) fChannel = 1;
 683                                         }
 684
 685                                 if(fChannel == -1) {
 686                                         fHistNeventsPsi2s->Fill(13);
 687                                         if(vDilepton.M() > 3.0 && vDilepton.M() < 3.2 && vCandidate.Pt()<0.15) fHistPsi2sMassCoherent->Fill(vCandidate.M());
 688                                         }
 689                                 if(fChannel == 1){
 690                                         fHistNeventsPsi2s->Fill(14);
 691                                         if(vDilepton.M() > 2.6 && vDilepton.M() < 3.2 && vCandidate.Pt()<0.3) fHistPsi2sMassCoherent->Fill(vCandidate.M());
 692                                         }
 693                                 }
 694                         }
 695                 }
 696   }
 697
 698   nGoodTracks = 0;
 699   //Two track loop
 700   for(Int_t itr=0; itr<aod ->GetNumberOfTracks(); itr++) {
 701     AliAODTrack *trk = aod->GetTrack(itr);
 702     if( !trk ) continue;
 703     if(!(trk->TestFilterBit(1<<0))) continue;
 704
 705       if(!(trk->GetStatus() & AliESDtrack::kTPCrefit) ) continue;
 706       if(!(trk->GetStatus() & AliESDtrack::kITSrefit) ) continue;
 707       if(trk->GetTPCNcls() < 70)continue;
 708       if(trk->Chi2perNDF() > 4)continue;
 709       if((!trk->HasPointOnITSLayer(0))&&(!trk->HasPointOnITSLayer(1))) continue;
 710       Double_t dca[2] = {0.0,0.0}, cov[3] = {0.0,0.0,0.0};
 711       AliAODTrack* trk_clone=(AliAODTrack*)trk->Clone("trk_clone");
 712       if(!trk_clone->PropagateToDCA(fAODVertex,aod->GetMagneticField(),300.,dca,cov)) continue;
 713       delete trk_clone;
 714       if(TMath::Abs(dca[1]) > 2) continue;
 715       Double_t cut_DCAxy = (0.0182 + 0.0350/TMath::Power(trk->Pt(),1.01));
 716       if(TMath::Abs(dca[0]) > cut_DCAxy) continue;
 717
 718       TrackIndex[nGoodTracks] = itr;
 719       nGoodTracks++;
 720
 721       if(nGoodTracks > 2) break;
 722   }//Track loop
 723
 724    nLepton=0; nPion=0; nHighPt=0;
 725   mass[0]= -1; mass[1]= -1, mass[2]= -1;
 726
 727   if(nGoodTracks == 2){
 728           fHistNeventsJPsi->Fill(6);
 729           for(Int_t i=0; i<2; i++){
 730                 AliAODTrack *trk = aod->GetTrack(TrackIndex[i]);
 731                 if(trk->Pt() > 1) nHighPt++;
 732                 fRecTPCsignal[nLepton] = trk->GetTPCsignal();
 733                 qLepton[nLepton] = trk->Charge();
 734                 if(fRecTPCsignal[nLepton] > 40 && fRecTPCsignal[nLepton] < 70){
 735                                 vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), muonMass);
 736                                 mass[nLepton] = 0;
 737                                 }
 738                 if(fRecTPCsignal[nLepton] > 70 && fRecTPCsignal[nLepton] < 100){
 739                                 vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), electronMass);
 740                                 mass[nLepton] = 1;
 741                                 }
 742                 nLepton++;
 743                 }
 744         if(nLepton == 2){
 745                 if(qLepton[0]*qLepton[1] > 0) fHistNeventsJPsi->Fill(7);
 746                 if(qLepton[0]*qLepton[1] < 0){
 747                         fHistNeventsJPsi->Fill(8);
 748                         if(nHighPt > 0){
 749                                 fHistNeventsJPsi->Fill(9);
 750                                 fHistTPCsignalJPsi->Fill(fRecTPCsignal[0],fRecTPCsignal[1]);
 751                                 if(nHighPt == 2) fHistNeventsJPsi->Fill(10);
 752                                 if(mass[0] != -1 && mass[1] != -1) {
 753                                         fHistNeventsJPsi->Fill(11);
 754                                         vCandidate = vLepton[0]+vLepton[1];
 755                                         fRecTPCsignalDist = TMath::Sqrt(TMath::Power(fRecTPCsignal[0]-56,2)+TMath::Power(fRecTPCsignal[1]-56,2));
 756                                         if (fRecTPCsignalDist < 3.6*4.0) fChannel = -1;
 757                                         else {
 758                                                 fRecTPCsignalDist = TMath::Sqrt(TMath::Power(fRecTPCsignal[0]-78,2)+TMath::Power(fRecTPCsignal[1]-78,2));
 759                                                 if (fRecTPCsignalDist < 4.1*4.0) fChannel = 1;
 760                                                 }
 761                                         if( vCandidate.M() > 2.8 && vCandidate.M() < 3.2) fHistDiLeptonPtJPsi->Fill(vLepton[0].Pt(),vLepton[1].Pt());
 762                                         if(fChannel == -1) {
 763                                                 fHistDiMuonMass->Fill(vCandidate.M());
 764                                                 if(vCandidate.Pt()<0.15)fHistDiLeptonMass->Fill(vCandidate.M());
 765                                                 fHistNeventsJPsi->Fill(12);
 766                                                 }
 767                                         if(fChannel == 1) {
 768                                                 fHistDiElectronMass->Fill(vCandidate.M());
 769                                                 if(vCandidate.Pt()<0.3)fHistDiLeptonMass->Fill(vCandidate.M());
 770                                                 fHistNeventsJPsi->Fill(13);
 771                                                 }
 772                                         }
 773                                 }
 774                         }
 775                 }
 776   }
 777
 778
 779   PostData(4, fListHist);
 780
 781 }
 782
 783 //_____________________________________________________________________________
 784 void AliAnalysisTaskUpcPsi2s::RunAODtree()
 785 {
 786   //input event
 787   AliAODEvent *aod = (AliAODEvent*) InputEvent();
 788   if(!aod) return;
 789
 790   if(isMC) RunAODMC(aod);
 791
 792   //input data
 793   const char *filnam = ((TTree*) GetInputData(0))->GetCurrentFile()->GetName();
 794   fDataFilnam->Clear();
 795   fDataFilnam->SetString(filnam);
 796   fEvtNum = ((TTree*) GetInputData(0))->GetTree()->GetReadEntry();
 797   fRunNum = aod ->GetRunNumber();
 798
 799   //Trigger
 800   TString trigger = aod->GetFiredTriggerClasses();
 801
 802   fTrigger[0]  = trigger.Contains("CCUP4-B"); // Central UPC Pb-Pb 2011
 803   fTrigger[1]  = trigger.Contains("CCUP2-B"); // Double gap
 804   fTrigger[2]  = trigger.Contains("CCUP7-B"); // Central UPC p-Pb 2013
 805   fTrigger[3]  = trigger.Contains("CINT1");
 806
 807   Bool_t isTriggered = kFALSE;
 808   for(Int_t i=0; i<ntrg; i++) {
 809     if( fTrigger[i] ) isTriggered = kTRUE;
 810   }
 811   if(!isMC && !isTriggered ) return;
 812
 813   //trigger inputs
 814   fL0inputs = aod->GetHeader()->GetL0TriggerInputs();
 815   fL1inputs = aod->GetHeader()->GetL1TriggerInputs();
 816
 817   //Event identification
 818   fPerNum = aod ->GetPeriodNumber();
 819   fOrbNum = aod ->GetOrbitNumber();
 820   fBCrossNum = aod ->GetBunchCrossNumber();
 821
 822   //primary vertex
 823   AliAODVertex *fAODVertex = aod->GetPrimaryVertex();
 824   fVtxContrib = fAODVertex->GetNContributors();
 825   fVtxPos[0] = fAODVertex->GetX();
 826   fVtxPos[1] = fAODVertex->GetY();
 827   fVtxPos[2] = fAODVertex->GetZ();
 828   Double_t CovMatx[6];
 829   fAODVertex->GetCovarianceMatrix(CovMatx);
 830   fVtxErr[0] = CovMatx[0];
 831   fVtxErr[1] = CovMatx[1];
 832   fVtxErr[2] = CovMatx[2];
 833   fVtxChi2 = fAODVertex->GetChi2();
 834   fVtxNDF = fAODVertex->GetNDF();
 835
 836   //Tracklets
 837   fNtracklets = aod->GetTracklets()->GetNumberOfTracklets();
 838
 839   //VZERO, ZDC
 840   AliAODVZERO *fV0data = aod ->GetVZEROData();
 841   AliAODZDC *fZDCdata = aod->GetZDCData();
 842
 843   fV0Adecision = fV0data->GetV0ADecision();
 844   fV0Cdecision = fV0data->GetV0CDecision();
 845   fZDCAenergy = fZDCdata->GetZNATowerEnergy()[0];
 846   fZDCCenergy = fZDCdata->GetZNCTowerEnergy()[0];
 847
 848   fNLooseTracks = 0;
 849
 850   //Track loop - loose cuts
 851   for(Int_t itr=0; itr<aod ->GetNumberOfTracks(); itr++) {
 852     AliAODTrack *trk = aod->GetTrack(itr);
 853     if( !trk ) continue;
 854     if(!(trk->TestFilterBit(1<<0))) continue;
 855
 856       if(!(trk->GetStatus() & AliAODTrack::kTPCrefit) ) continue;
 857       if(!(trk->GetStatus() & AliAODTrack::kITSrefit) ) continue;
 858       if(trk->GetTPCNcls() < 20)continue;
 859       fNLooseTracks++;
 860   }//Track loop -loose cuts
 861
 862   Int_t nGoodTracks=0;
 863   Int_t TrackIndex[5] = {-1,-1,-1,-1,-1};
 864
 865   //Two track loop
 866   for(Int_t itr=0; itr<aod ->GetNumberOfTracks(); itr++) {
 867     AliAODTrack *trk = aod->GetTrack(itr);
 868     if( !trk ) continue;
 869     if(!(trk->TestFilterBit(1<<0))) continue;
 870
 871       if(!(trk->GetStatus() & AliAODTrack::kTPCrefit) ) continue;
 872       if(!(trk->GetStatus() & AliAODTrack::kITSrefit) ) continue;
 873       if(trk->GetTPCNcls() < 70)continue;
 874       if(trk->Chi2perNDF() > 4)continue;
 875       if((!trk->HasPointOnITSLayer(0))&&(!trk->HasPointOnITSLayer(1))) continue;
 876       Double_t dca[2] = {0.0,0.0}, cov[3] = {0.0,0.0,0.0};
 877       AliAODTrack* trk_clone=(AliAODTrack*)trk->Clone("trk_clone");
 878       if(!trk_clone->PropagateToDCA(fAODVertex,aod->GetMagneticField(),300.,dca,cov)) continue;
 879       delete trk_clone;
 880       if(TMath::Abs(dca[1]) > 2) continue;
 881       Double_t cut_DCAxy = (0.0182 + 0.0350/TMath::Power(trk->Pt(),1.01));
 882       if(TMath::Abs(dca[0]) > cut_DCAxy) continue;
 883
 884
 885       TrackIndex[nGoodTracks] = itr;
 886       nGoodTracks++;
 887
 888       if(nGoodTracks > 2) break;
 889   }//Track loop
 890
 891   fJPsiAODTracks->Clear("C");
 892   if(nGoodTracks == 2){
 893
 894           TDatabasePDG *pdgdat = TDatabasePDG::Instance();
 895           TParticlePDG *partMuon = pdgdat->GetParticle( 13 );
 896           Double_t muonMass = partMuon->Mass();
 897           TParticlePDG *partElectron = pdgdat->GetParticle( 11 );
 898           Double_t electronMass = partElectron->Mass();
 899           TParticlePDG *partPion = pdgdat->GetParticle( 211 );
 900           Double_t pionMass = partPion->Mass();
 901
 902           Double_t KFcov[21];
 903           Double_t KFpar[6];
 904           Double_t KFmass = pionMass;
 905           Double_t fRecTPCsignal;
 906           AliKFParticle *KFpart[2];
 907           AliKFVertex *KFvtx = new AliKFVertex();
 908           KFvtx->SetField(aod->GetMagneticField());
 909
 910           for(Int_t i=0; i<2; i++){
 911                 AliAODTrack *trk = aod->GetTrack(TrackIndex[i]);
 912
 913                 Double_t dca[2] = {0.0,0.0}, cov[3] = {0.0,0.0,0.0};
 914                 AliAODTrack* trk_clone=(AliAODTrack*)trk->Clone("trk_clone");
 915                 if(!trk_clone->PropagateToDCA(fAODVertex,aod->GetMagneticField(),300.,dca,cov)) continue;
 916                 delete trk_clone;
 917
 918                 new((*fJPsiAODTracks)[i]) AliAODTrack(*trk);
 919                 ((AliAODTrack*)((*fJPsiAODTracks)[i]))->SetDCA(dca[0],dca[1]);//to get DCAxy trk->DCA(); to get DCAz trk->ZAtDCA();
 920
 921                 fPIDTPCMuon[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kMuon);
 922                 fPIDTPCElectron[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kElectron);
 923                 fPIDTPCPion[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kPion);
 924                 fPIDTPCKaon[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kKaon);
 925                 fPIDTPCProton[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kProton);
 926
 927                 fPIDTOFMuon[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kMuon);
 928                 fPIDTOFElectron[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kElectron);
 929                 fPIDTOFPion[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kPion);
 930                 fPIDTOFKaon[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kKaon);
 931                 fPIDTOFProton[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kProton);
 932
 933                 trk->GetPosition(KFpar);
 934                 trk->PxPyPz(KFpar+3);
 935                 trk->GetCovMatrix(KFcov);
 936
 937                 if(trk->Pt() > 1){
 938                         fRecTPCsignal = trk->GetTPCsignal();
 939                         if(fRecTPCsignal > 40 && fRecTPCsignal < 70) KFmass = muonMass;
 940                         if(fRecTPCsignal > 70 && fRecTPCsignal < 100)KFmass = electronMass;
 941                         }
 942                 else KFmass = pionMass;
 943
 944                 KFpart[i] = new AliKFParticle();
 945                 KFpart[i]->SetField(aod->GetMagneticField());
 946                 KFpart[i]->AliKFParticleBase::Initialize(KFpar,KFcov,(Int_t) trk->Charge(), KFmass);
 947                 KFvtx->AddDaughter(*KFpart[i]);
 948
 949
 950                 Double_t pos[3]={0,0,0};
 951                 AliExternalTrackParam *parTrk = new AliExternalTrackParam();
 952                 parTrk->CopyFromVTrack((AliVTrack*) trk);
 953                 if(!parTrk->GetXYZAt(378,aod->GetMagneticField(),pos)) fTOFphi[i] = -666;
 954                 else {
 955                      fTOFphi[i] =  TMath::ATan2(pos[1],pos[0])*TMath::RadToDeg();
 956                      if(fTOFphi[i] < 0) fTOFphi[i]+=(2*TMath::Pi()*TMath::RadToDeg());
 957                      }
 958                 delete parTrk;
 959                 }
 960   fKfVtxPos[0]= KFvtx->GetX();
 961   fKfVtxPos[1]= KFvtx->GetY();
 962   fKfVtxPos[2]= KFvtx->GetZ();
 963   for(UInt_t i=0; i<2; i++)delete KFpart[i];
 964   delete KFvtx;
 965
 966   if(!isMC) fJPsiTree ->Fill();
 967   }
 968
 969    nGoodTracks = 0;
 970    //Four track loop
 971   for(Int_t itr=0; itr<aod ->GetNumberOfTracks(); itr++) {
 972     AliAODTrack *trk = aod->GetTrack(itr);
 973     if( !trk ) continue;
 974     if(!(trk->TestFilterBit(1<<0))) continue;
 975
 976       if(!(trk->GetStatus() & AliAODTrack::kTPCrefit) ) continue;
 977       if(!(trk->GetStatus() & AliAODTrack::kITSrefit) ) continue;
 978       if(trk->GetTPCNcls() < 50)continue;
 979       if(trk->Chi2perNDF() > 4)continue;
 980       Double_t dca[2] = {0.0,0.0}, cov[3] = {0.0,0.0,0.0};
 981       AliAODTrack* trk_clone=(AliAODTrack*)trk->Clone("trk_clone");
 982       if(!trk_clone->PropagateToDCA(fAODVertex,aod->GetMagneticField(),300.,dca,cov)) continue;
 983       delete trk_clone;
 984       if(TMath::Abs(dca[1]) > 2) continue;
 985       Double_t cut_DCAxy = 4*(0.0182 + 0.0350/TMath::Power(trk->Pt(),1.01));
 986       if(TMath::Abs(dca[0]) > cut_DCAxy) continue;
 987
 988       TrackIndex[nGoodTracks] = itr;
 989       nGoodTracks++;
 990
 991       if(nGoodTracks > 4) break;
 992   }//Track loop
 993
 994   fPsi2sAODTracks->Clear("C");
 995   if(nGoodTracks == 4){
 996
 997           TDatabasePDG *pdgdat = TDatabasePDG::Instance();
 998           TParticlePDG *partMuon = pdgdat->GetParticle( 13 );
 999           Double_t muonMass = partMuon->Mass();
1000           TParticlePDG *partElectron = pdgdat->GetParticle( 11 );
1001           Double_t electronMass = partElectron->Mass();
1002           TParticlePDG *partPion = pdgdat->GetParticle( 211 );
1003           Double_t pionMass = partPion->Mass();
1004
1005           Double_t KFcov[21];
1006           Double_t KFpar[6];
1007           Double_t KFmass = pionMass;
1008           Double_t fRecTPCsignal;
1009           AliKFParticle *KFpart[4];
1010           AliKFVertex *KFvtx = new AliKFVertex();
1011           KFvtx->SetField(aod->GetMagneticField());
1012
1013           for(Int_t i=0; i<4; i++){
1014                 AliAODTrack *trk = aod->GetTrack(TrackIndex[i]);
1015
1016                 Double_t dca[2] = {0.0,0.0}, cov[3] = {0.0,0.0,0.0};
1017                 AliAODTrack* trk_clone=(AliAODTrack*)trk->Clone("trk_clone");
1018                 if(!trk_clone->PropagateToDCA(fAODVertex,aod->GetMagneticField(),300.,dca,cov)) continue;
1019                 delete trk_clone;
1020
1021                 new((*fPsi2sAODTracks)[i]) AliAODTrack(*trk);
1022                 ((AliAODTrack*)((*fPsi2sAODTracks)[i]))->SetDCA(dca[0],dca[1]);//to get DCAxy trk->DCA(); to get DCAz trk->ZAtDCA();
1023
1024
1025                 fPIDTPCMuon[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kMuon);
1026                 fPIDTPCElectron[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kElectron);
1027                 fPIDTPCPion[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kPion);
1028                 fPIDTPCKaon[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kKaon);
1029                 fPIDTPCProton[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kProton);
1030
1031                 fPIDTOFMuon[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kMuon);
1032                 fPIDTOFElectron[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kElectron);
1033                 fPIDTOFPion[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kPion);
1034                 fPIDTOFKaon[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kKaon);
1035                 fPIDTOFProton[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kProton);
1036
1037                 trk->GetPosition(KFpar);
1038                 trk->PxPyPz(KFpar+3);
1039                 trk->GetCovMatrix(KFcov);
1040
1041                 if(trk->Pt() > 1){
1042                         fRecTPCsignal = trk->GetTPCsignal();
1043                         if(fRecTPCsignal > 40 && fRecTPCsignal < 70) KFmass = muonMass;
1044                         if(fRecTPCsignal > 70 && fRecTPCsignal < 100)KFmass = electronMass;
1045                         }
1046                 else KFmass = pionMass;
1047
1048                 KFpart[i] = new AliKFParticle();
1049                 KFpart[i]->SetField(aod->GetMagneticField());
1050                 KFpart[i]->AliKFParticleBase::Initialize(KFpar,KFcov,(Int_t) trk->Charge(), KFmass);
1051                 KFvtx->AddDaughter(*KFpart[i]);
1052
1053                 Double_t pos[3]={0,0,0};
1054                 AliExternalTrackParam *parTrk = new AliExternalTrackParam();
1055                 parTrk->CopyFromVTrack((AliVTrack*) trk);
1056                 if(!parTrk->GetXYZAt(378,aod->GetMagneticField(),pos)) fTOFphi[i] = -666;
1057                 else {
1058                      fTOFphi[i] =  TMath::ATan2(pos[1],pos[0])*TMath::RadToDeg();
1059                      if(fTOFphi[i] < 0) fTOFphi[i]+=(2*TMath::Pi()*TMath::RadToDeg());
1060                      }
1061                 delete parTrk;
1062                 }
1063   fKfVtxPos[0]= KFvtx->GetX();
1064   fKfVtxPos[1]= KFvtx->GetY();
1065   fKfVtxPos[2]= KFvtx->GetZ();
1066   for(UInt_t i=0; i<4; i++)delete KFpart[i];
1067   delete KFvtx;
1068   if(!isMC) fPsi2sTree ->Fill();
1069   }
1070
1071   if(isMC){
1072         fJPsiTree ->Fill();
1073         fPsi2sTree ->Fill();
1074   }
1075
1076   PostData(1, fJPsiTree);
1077   PostData(2, fPsi2sTree);
1078
1079 }//RunAOD
1080
1081
1082 //_____________________________________________________________________________
1083 void AliAnalysisTaskUpcPsi2s::RunAODMC(AliAODEvent *aod)
1084 {
1085
1086   fGenPart->Clear("C");
1087
1088   TClonesArray *arrayMC = (TClonesArray*) aod->GetList()->FindObject(AliAODMCParticle::StdBranchName());
1089   if(!arrayMC) return;
1090
1091   Int_t nmc=0;
1092   //loop over mc particles
1093   for(Int_t imc=0; imc<arrayMC->GetEntriesFast(); imc++) {
1094     AliAODMCParticle *mcPart = (AliAODMCParticle*) arrayMC->At(imc);
1095     if(!mcPart) continue;
1096
1097     if(mcPart->GetMother() >= 0) continue;
1098
1099     TParticle *part = (TParticle*) fGenPart->ConstructedAt(nmc++);
1100     part->SetMomentum(mcPart->Px(), mcPart->Py(), mcPart->Pz(), mcPart->E());
1101     part->SetPdgCode(mcPart->GetPdgCode());
1102     part->SetUniqueID(imc);
1103   }//loop over mc particles
1104
1105 }//RunAODMC
1106
1107
1108 //_____________________________________________________________________________
1109 void AliAnalysisTaskUpcPsi2s::RunESDtrig()
1110 {
1111
1112   //input event
1113   AliESDEvent *esd = (AliESDEvent*) InputEvent();
1114   if(!esd) return;
1115
1116   fRunNum = esd ->GetRunNumber();
1117   //Trigger
1118   TString trigger = esd->GetFiredTriggerClasses();
1119
1120   if(trigger.Contains("CCUP4-B")) fHistCcup4TriggersPerRun->Fill(fRunNum); //CCUP4 triggers
1121   if(trigger.Contains("CCUP7-B")) fHistCcup7TriggersPerRun->Fill(fRunNum); //CCUP7 triggers
1122   if(trigger.Contains("CCUP2-B")) fHistCcup2TriggersPerRun->Fill(fRunNum); //CCUP2 triggers
1123
1124   if(trigger.Contains("CVLN_B2-B")) fHistCvlnTriggersPerRun->Fill(fRunNum); //CVLN triggers - synchronously downscaled
1125   if(trigger.Contains("CVLN_R1-B")) fHistCvlnTriggersPerRun->Fill(fRunNum); //CVLN triggers - randomly downscaled
1126
1127   if(esd->GetHeader()->IsTriggerInputFired("1ZED")) fHistZedTriggersPerRun->Fill(fRunNum); //1ZED trigger inputs
1128
1129    //MB, Central and SemiCentral triggers
1130   AliCentrality *centrality = esd->GetCentrality();
1131   UInt_t selectionMask = ((AliInputEventHandler*)(AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler()))->IsEventSelected();
1132
1133   //Double_t percentile = centrality->GetCentralityPercentile("V0M");
1134   Double_t percentile = centrality->GetCentralityPercentileUnchecked("V0M");
1135
1136   if(((selectionMask & AliVEvent::kMB) == AliVEvent::kMB) && percentile<=80 && percentile>=0) fHistMBTriggersPerRun->Fill(fRunNum);
1137
1138   if(((selectionMask & AliVEvent::kCentral) == AliVEvent::kCentral) && percentile<=6 && percentile>=0 && (trigger.Contains("CVHN_R2-B"))) fHistCentralTriggersPerRun->Fill(fRunNum);
1139
1140   if(((selectionMask & AliVEvent::kSemiCentral) == AliVEvent::kSemiCentral) && percentile<=50 && percentile>=15) fHistSemiCentralTriggersPerRun->Fill(fRunNum);
1141
1142
1143 PostData(3, fListTrig);
1144
1145 }
1146 //_____________________________________________________________________________
1147 void AliAnalysisTaskUpcPsi2s::RunESDhist()
1148 {
1149
1150   TDatabasePDG *pdgdat = TDatabasePDG::Instance();
1151
1152   TParticlePDG *partMuon = pdgdat->GetParticle( 13 );
1153   Double_t muonMass = partMuon->Mass();
1154
1155   TParticlePDG *partElectron = pdgdat->GetParticle( 11 );
1156   Double_t electronMass = partElectron->Mass();
1157
1158   TParticlePDG *partPion = pdgdat->GetParticle( 211 );
1159   Double_t pionMass = partPion->Mass();
1160
1161   //input event
1162   AliESDEvent *esd = (AliESDEvent*) InputEvent();
1163   if(!esd) return;
1164
1165   fHistNeventsJPsi->Fill(1);
1166   fHistNeventsPsi2s->Fill(1);
1167
1168   //Trigger
1169   TString trigger = esd->GetFiredTriggerClasses();
1170
1171   if(!isMC && !trigger.Contains("CCUP") ) return;
1172
1173   fHistNeventsJPsi->Fill(2);
1174   fHistNeventsPsi2s->Fill(2);
1175
1176   //primary vertex
1177   AliESDVertex *fESDVertex = (AliESDVertex*) esd->GetPrimaryVertex();
1178   fVtxContrib = fESDVertex->GetNContributors();
1179   if(fVtxContrib < 2) return;
1180
1181   fHistNeventsJPsi->Fill(3);
1182   fHistNeventsPsi2s->Fill(3);
1183
1184   //VZERO, ZDC
1185   AliESDVZERO *fV0data = esd->GetVZEROData();
1186   AliESDZDC *fZDCdata = esd->GetESDZDC();
1187
1188   fV0Adecision = fV0data->GetV0ADecision();
1189   fV0Cdecision = fV0data->GetV0CDecision();
1190   if(fV0Adecision != AliESDVZERO::kV0Empty || fV0Cdecision != AliESDVZERO::kV0Empty) return;
1191
1192   fZDCAenergy = fZDCdata->GetZN2TowerEnergy()[0];
1193   fZDCCenergy = fZDCdata->GetZN1TowerEnergy()[0];
1194   if( fZDCAenergy > 8200 || fZDCCenergy > 8200) return;
1195
1196   fHistNeventsJPsi->Fill(4);
1197   fHistNeventsPsi2s->Fill(4);
1198
1199    Int_t nGoodTracks=0;
1200   //Two tracks loop
1201   Int_t TrackIndex[5] = {-1,-1,-1,-1,-1};
1202
1203   TLorentzVector vLepton[4], vPion[4], vCandidate, vDilepton;
1204   Short_t qLepton[4], qPion[4];
1205   UInt_t nLepton=0, nPion=0, nHighPt=0;
1206   Double_t fRecTPCsignal[5];
1207   Int_t mass[3]={-1,-1,-1};
1208
1209  //Two Track loop
1210   for(Int_t itr=0; itr<esd ->GetNumberOfTracks(); itr++) {
1211     AliESDtrack *trk = esd->GetTrack(itr);
1212     if( !trk ) continue;
1213
1214       if(!(trk->GetStatus() & AliESDtrack::kTPCrefit) ) continue;
1215       if(!(trk->GetStatus() & AliESDtrack::kITSrefit) ) continue;
1216       if(trk->GetTPCNcls() < 70)continue;
1217       if(trk->GetTPCchi2()/trk->GetTPCNcls() > 4)continue;
1218       if((!trk->HasPointOnITSLayer(0))&&(!trk->HasPointOnITSLayer(1))) continue;
1219       Float_t dca[2] = {0.0,0.0}; AliExternalTrackParam cParam;
1220       if(!trk->RelateToVertex(fESDVertex, esd->GetMagneticField(),300.,&cParam)) continue;
1221       trk->GetImpactParameters(dca[0],dca[1]);
1222       if(TMath::Abs(dca[1]) > 2) continue;
1223       if(TMath::Abs(dca[1]) > 0.2) continue;
1224
1225       TrackIndex[nGoodTracks] = itr;
1226       nGoodTracks++;
1227       if(nGoodTracks > 2) break;
1228   }//Track loop
1229
1230
1231   if(nGoodTracks == 2){
1232           fHistNeventsJPsi->Fill(5);
1233           for(Int_t i=0; i<2; i++){
1234                 AliESDtrack *trk = esd->GetTrack(TrackIndex[i]);
1235                 if(trk->Pt() > 1) nHighPt++;
1236                 fRecTPCsignal[nLepton] = trk->GetTPCsignal();
1237                 qLepton[nLepton] = trk->Charge();
1238                 if(fRecTPCsignal[nLepton] > 40 && fRecTPCsignal[nLepton] < 70){
1239                                 vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), muonMass);
1240                                 mass[nLepton] = 0;
1241                                 }
1242                 if(fRecTPCsignal[nLepton] > 70 && fRecTPCsignal[nLepton] < 100){
1243                                 vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), electronMass);
1244                                 mass[nLepton] = 1;
1245                                 }
1246                 nLepton++;
1247                 }
1248         if(nLepton == 2){
1249                 if(qLepton[0]*qLepton[1] > 0) fHistNeventsJPsi->Fill(6);
1250                 if(qLepton[0]*qLepton[1] < 0){
1251                         fHistNeventsJPsi->Fill(7);
1252                         if(nHighPt > 0){
1253                                 fHistNeventsJPsi->Fill(8);
1254                                 fHistTPCsignalJPsi->Fill(fRecTPCsignal[0],fRecTPCsignal[1]);
1255                                 if(nHighPt == 2) fHistNeventsJPsi->Fill(9);
1256                                 if(mass[0] == mass[1] && mass[0] != -1) {
1257                                         fHistNeventsJPsi->Fill(10);
1258                                         vCandidate = vLepton[0]+vLepton[1];
1259                                         if( vCandidate.M() > 2.8 && vCandidate.M() < 3.2) fHistDiLeptonPtJPsi->Fill(vLepton[0].Pt(),vLepton[1].Pt());
1260                                         if(mass[0] == 0) {
1261                                                 fHistDiMuonMass->Fill(vCandidate.M());
1262                                                 fHistNeventsJPsi->Fill(11);
1263                                                 }
1264                                         if(mass[0] == 1) {
1265                                                 fHistDiElectronMass->Fill(vCandidate.M());
1266                                                 fHistNeventsJPsi->Fill(12);
1267                                                 }
1268                                         }
1269                                 }
1270                         }
1271                 }
1272   }
1273   nGoodTracks = 0; nLepton=0; nPion=0; nHighPt=0;
1274   mass[0]= -1; mass[1]= -1, mass[2]= -1;
1275
1276     //Four Track loop
1277   for(Int_t itr=0; itr<esd ->GetNumberOfTracks(); itr++) {
1278     AliESDtrack *trk = esd->GetTrack(itr);
1279     if( !trk ) continue;
1280
1281       if(!(trk->GetStatus() & AliESDtrack::kTPCrefit) ) continue;
1282       if(!(trk->GetStatus() & AliESDtrack::kITSrefit) ) continue;
1283       if(trk->GetTPCNcls() < 50)continue;
1284       if(trk->GetTPCchi2()/trk->GetTPCNcls() > 4)continue;
1285       Float_t dca[2] = {0.0,0.0}; AliExternalTrackParam cParam;
1286       if(!trk->RelateToVertex(fESDVertex, esd->GetMagneticField(),300.,&cParam)) continue;
1287       trk->GetImpactParameters(dca[0],dca[1]);
1288       if(TMath::Abs(dca[1]) > 2) continue;
1289
1290       TrackIndex[nGoodTracks] = itr;
1291       nGoodTracks++;
1292       if(nGoodTracks > 4) break;
1293   }//Track loop
1294
1295   if(nGoodTracks == 4){
1296           fHistNeventsPsi2s->Fill(5);
1297           for(Int_t i=0; i<4; i++){
1298                 AliESDtrack *trk = esd->GetTrack(TrackIndex[i]);
1299
1300                 if(trk->Pt() > 1){
1301                         fRecTPCsignal[nLepton] = trk->GetTPCsignal();
1302                         qLepton[nLepton] = trk->Charge();
1303                         if(fRecTPCsignal[nLepton] > 40 && fRecTPCsignal[nLepton] < 70){
1304                                         vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), muonMass);
1305                                         mass[nLepton] = 0;
1306                                         }
1307                         if(fRecTPCsignal[nLepton] > 70 && fRecTPCsignal[nLepton] < 100){
1308                                         vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), electronMass);
1309                                         mass[nLepton] = 1;
1310                                         }
1311                         nLepton++;
1312                         }
1313                 else{
1314                         qPion[nPion] = trk->Charge();
1315                         vPion[nPion].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), pionMass);
1316                         nPion++;
1317                         }
1318
1319                 if(nLepton > 2 || nPion > 2) break;
1320                 }
1321         if((nLepton == 2) && (nPion == 2)){
1322                 fHistNeventsPsi2s->Fill(6);
1323                 if(qLepton[0]*qLepton[1] > 0) fHistNeventsPsi2s->Fill(7);
1324                 if(qPion[0]*qPion[1] > 0) fHistNeventsPsi2s->Fill(8);
1325                 if((qLepton[0]*qLepton[1] > 0) && (qPion[0]*qPion[1] > 0)) fHistNeventsPsi2s->Fill(9);
1326                 if((qLepton[0]*qLepton[1] < 0) && (qPion[0]*qPion[1] < 0)){
1327                         fHistNeventsPsi2s->Fill(10);
1328                         if(mass[0] == mass[1]) {
1329                                 fHistNeventsPsi2s->Fill(11);
1330                                 vCandidate = vLepton[0]+vLepton[1]+vPion[0]+vPion[1];
1331                                 vDilepton = vLepton[0]+vLepton[1];
1332                                 fHistPsi2sMassVsPt->Fill(vCandidate.M(),vCandidate.Pt());
1333                                 if(vCandidate.Pt() < 0.15) fHistPsi2sMassCoherent->Fill(vCandidate.M());
1334                                 if(mass[0] == 0) fHistNeventsPsi2s->Fill(12);
1335                                 if(mass[0] == 1) fHistNeventsPsi2s->Fill(13);
1336                                 }
1337                         }
1338                 }
1339   }
1340
1341   PostData(4, fListHist);
1342
1343 }
1344
1345 //_____________________________________________________________________________
1346 void AliAnalysisTaskUpcPsi2s::RunESDtree()
1347 {
1348
1349   //input event
1350   AliESDEvent *esd = (AliESDEvent*) InputEvent();
1351   if(!esd) return;
1352
1353   if(isMC) RunESDMC(esd);
1354
1355   //input data
1356   const char *filnam = ((TTree*) GetInputData(0))->GetCurrentFile()->GetName();
1357   fDataFilnam->Clear();
1358   fDataFilnam->SetString(filnam);
1359   fEvtNum = ((TTree*) GetInputData(0))->GetTree()->GetReadEntry();
1360   fRunNum = esd->GetRunNumber();
1361
1362    //Trigger
1363   TString trigger = esd->GetFiredTriggerClasses();
1364
1365   fTrigger[0]  = trigger.Contains("CCUP4-B"); // Central UPC Pb-Pb 2011
1366   fTrigger[1]  = trigger.Contains("CCUP2-B"); // Double gap
1367   fTrigger[2]  = trigger.Contains("CCUP7-B"); // Central UPC p-Pb 2013
1368
1369   Bool_t isTriggered = kFALSE;
1370   for(Int_t i=0; i<ntrg; i++) {
1371     if( fTrigger[i] ) isTriggered = kTRUE;
1372   }
1373   if(!isMC && !isTriggered ) return;
1374
1375   //trigger inputs
1376   fL0inputs = esd->GetHeader()->GetL0TriggerInputs();
1377   fL1inputs = esd->GetHeader()->GetL1TriggerInputs();
1378
1379   //TOF trigger info (0OMU)
1380   fTOFtrig1 = esd->GetHeader()->IsTriggerInputFired("0OMU");
1381   fTOFtrig2 = esd->GetHeader()->GetActiveTriggerInputs().Contains("0OMU") ? ((esd->GetHeader()) ? esd->GetHeader()->IsTriggerInputFired("0OMU") : kFALSE) : TESTBIT(esd->GetHeader()->GetL0TriggerInputs(), (kFALSE) ? 21 : 9);
1382
1383   //Event identification
1384   fPerNum = esd->GetPeriodNumber();
1385   fOrbNum = esd->GetOrbitNumber();
1386   fBCrossNum = esd->GetBunchCrossNumber();
1387
1388   //primary vertex
1389   AliESDVertex *fESDVertex = (AliESDVertex*) esd->GetPrimaryVertex();
1390   fVtxContrib = fESDVertex->GetNContributors();
1391   fVtxPos[0] = fESDVertex->GetX();
1392   fVtxPos[1] = fESDVertex->GetY();
1393   fVtxPos[2] = fESDVertex->GetZ();
1394   Double_t CovMatx[6];
1395   fESDVertex->GetCovarianceMatrix(CovMatx);
1396   fVtxErr[0] = CovMatx[0];
1397   fVtxErr[1] = CovMatx[1];
1398   fVtxErr[2] = CovMatx[2];
1399   fVtxChi2 = fESDVertex->GetChi2();
1400   fVtxNDF = fESDVertex->GetNDF();
1401
1402   //Tracklets
1403   fNtracklets = esd->GetMultiplicity()->GetNumberOfTracklets();
1404
1405   //VZERO, ZDC
1406   AliESDVZERO *fV0data = esd->GetVZEROData();
1407   AliESDZDC *fZDCdata = esd->GetESDZDC();
1408
1409   fV0Adecision = fV0data->GetV0ADecision();
1410   fV0Cdecision = fV0data->GetV0CDecision();
1411   fZDCAenergy = fZDCdata->GetZN2TowerEnergy()[0];
1412   fZDCCenergy = fZDCdata->GetZN1TowerEnergy()[0];
1413
1414   fNLooseTracks = 0;
1415
1416   //Track loop - loose cuts
1417   for(Int_t itr=0; itr<esd ->GetNumberOfTracks(); itr++) {
1418     AliESDtrack *trk = esd->GetTrack(itr);
1419     if( !trk ) continue;
1420
1421       if(!(trk->GetStatus() & AliESDtrack::kTPCrefit) ) continue;
1422       if(!(trk->GetStatus() & AliESDtrack::kITSrefit) ) continue;
1423       if(trk->GetTPCNcls() < 20)continue;
1424       fNLooseTracks++;
1425   }//Track loop -loose cuts
1426
1427   Int_t nGoodTracks=0;
1428   Int_t TrackIndex[5] = {-1,-1,-1,-1,-1};
1429
1430   //Two Track loop
1431   for(Int_t itr=0; itr<esd ->GetNumberOfTracks(); itr++) {
1432     AliESDtrack *trk = esd->GetTrack(itr);
1433     if( !trk ) continue;
1434
1435       if(!(trk->GetStatus() & AliESDtrack::kTPCrefit) ) continue;
1436       if(!(trk->GetStatus() & AliESDtrack::kITSrefit) ) continue;
1437       if(trk->GetTPCNcls() < 70)continue;
1438       if(trk->GetTPCchi2()/trk->GetTPCNcls() > 4)continue;
1439       if((!trk->HasPointOnITSLayer(0))&&(!trk->HasPointOnITSLayer(1))) continue;
1440       Float_t dca[2] = {0.0,0.0}; AliExternalTrackParam cParam;
1441       if(!trk->RelateToVertex(fESDVertex, esd->GetMagneticField(),300.,&cParam)) continue;
1442       trk->GetImpactParameters(dca[0],dca[1]);
1443       if(TMath::Abs(dca[1]) > 2) continue;
1444       if(TMath::Abs(dca[0]) > 0.2) continue;
1445
1446       TrackIndex[nGoodTracks] = itr;
1447       nGoodTracks++;
1448       if(nGoodTracks > 2) break;
1449   }//Track loop
1450
1451   fJPsiESDTracks->Clear("C");
1452   if(nGoodTracks == 2){
1453           for(Int_t i=0; i<2; i++){
1454                 AliESDtrack *trk = esd->GetTrack(TrackIndex[i]);
1455
1456                 AliExternalTrackParam cParam;
1457                 trk->RelateToVertex(fESDVertex, esd->GetMagneticField(),300.,&cParam);// to get trk->GetImpactParameters(DCAxy,DCAz);
1458
1459                 new((*fJPsiESDTracks)[i]) AliESDtrack(*trk);
1460
1461                 fPIDTPCMuon[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kMuon);
1462                 fPIDTPCElectron[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kElectron);
1463                 fPIDTPCPion[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kPion);
1464                 fPIDTPCKaon[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kKaon);
1465                 fPIDTPCProton[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kProton);
1466
1467                 fPIDTOFMuon[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kMuon);
1468                 fPIDTOFElectron[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kElectron);
1469                 fPIDTOFPion[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kPion);
1470                 fPIDTOFKaon[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kKaon);
1471                 fPIDTOFProton[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kProton);
1472
1473                 Double_t pos[3]={0,0,0};
1474                 if(!trk->GetXYZAt(378,esd->GetMagneticField(),pos)) fTOFphi[i] = -666;
1475                 else {
1476                      fTOFphi[i] =  TMath::ATan2(pos[1],pos[0])*TMath::RadToDeg();
1477                      if(fTOFphi[i] < 0) fTOFphi[i]+=(2*TMath::Pi()*TMath::RadToDeg());
1478                      }
1479                 }
1480   if(!isMC) fJPsiTree ->Fill();
1481   }
1482
1483   nGoodTracks = 0;
1484   //Four track loop
1485   for(Int_t itr=0; itr<esd ->GetNumberOfTracks(); itr++) {
1486     AliESDtrack *trk = esd->GetTrack(itr);
1487     if( !trk ) continue;
1488
1489       if(!(trk->GetStatus() & AliESDtrack::kTPCrefit) ) continue;
1490       if(!(trk->GetStatus() & AliESDtrack::kITSrefit) ) continue;
1491       if(trk->GetTPCNcls() < 50)continue;
1492       if(trk->GetTPCchi2()/trk->GetTPCNcls() > 4)continue;
1493       Float_t dca[2] = {0.0,0.0}; AliExternalTrackParam cParam;
1494       if(!trk->RelateToVertex(fESDVertex, esd->GetMagneticField(),300.,&cParam)) continue;
1495       trk->GetImpactParameters(dca[0],dca[1]);
1496       if(TMath::Abs(dca[1]) > 2) continue;
1497
1498       TrackIndex[nGoodTracks] = itr;
1499       nGoodTracks++;
1500       if(nGoodTracks > 4) break;
1501   }//Track loop
1502
1503   fPsi2sESDTracks->Clear("C");
1504   if(nGoodTracks == 4){
1505           for(Int_t i=0; i<4; i++){
1506                 AliESDtrack *trk = esd->GetTrack(TrackIndex[i]);
1507
1508                 AliExternalTrackParam cParam;
1509                 trk->RelateToVertex(fESDVertex, esd->GetMagneticField(),300.,&cParam);// to get trk->GetImpactParameters(DCAxy,DCAz);
1510
1511                 new((*fPsi2sESDTracks)[i]) AliESDtrack(*trk);
1512
1513                 fPIDTPCMuon[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kMuon);
1514                 fPIDTPCElectron[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kElectron);
1515                 fPIDTPCPion[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kPion);
1516                 fPIDTPCKaon[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kKaon);
1517                 fPIDTPCProton[i] = fPIDResponse->NumberOfSigmasTPC(trk,AliPID::kProton);
1518
1519                 fPIDTOFMuon[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kMuon);
1520                 fPIDTOFElectron[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kElectron);
1521                 fPIDTOFPion[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kPion);
1522                 fPIDTOFKaon[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kKaon);
1523                 fPIDTOFProton[i] = fPIDResponse->NumberOfSigmasTOF(trk,AliPID::kProton);
1524
1525                 Double_t pos[3]={0,0,0};
1526                 if(!trk->GetXYZAt(378,esd->GetMagneticField(),pos)) fTOFphi[i] = -666;
1527                 else {
1528                      fTOFphi[i] =  TMath::ATan2(pos[1],pos[0])*TMath::RadToDeg();
1529                      if(fTOFphi[i] < 0) fTOFphi[i]+=(2*TMath::Pi()*TMath::RadToDeg());
1530                      }
1531                 }
1532   if(!isMC) fPsi2sTree ->Fill();
1533   }
1534
1535   if(isMC){
1536         fJPsiTree ->Fill();
1537         fPsi2sTree ->Fill();
1538   }
1539
1540   PostData(1, fJPsiTree);
1541   PostData(2, fPsi2sTree);
1542
1543 }//RunESD
1544
1545
1546 //_____________________________________________________________________________
1547 void AliAnalysisTaskUpcPsi2s::RunESDMC(AliESDEvent* esd)
1548 {
1549
1550   AliTriggerAnalysis *fTrigAna = new AliTriggerAnalysis();
1551   fTrigAna->SetAnalyzeMC(isMC);
1552
1553   if(fTrigAna->SPDFiredChips(esd,1,kFALSE,2) > 1) fTriggerInputsMC[0] = kTRUE;
1554   if(fTrigAna->SPDFiredChips(esd,1,kFALSE,2) < 2) fTriggerInputsMC[0] = kFALSE;
1555
1556   fTriggerInputsMC[1] = esd->GetHeader()->IsTriggerInputFired("0OMU");
1557   fTriggerInputsMC[2] = esd->GetHeader()->IsTriggerInputFired("0VBA");
1558   fTriggerInputsMC[3] = esd->GetHeader()->IsTriggerInputFired("0VBC");
1559
1560   fGenPart->Clear("C");
1561
1562   AliMCEvent *mc = MCEvent();
1563   if(!mc) return;
1564
1565   Int_t nmc = 0;
1566   //loop over mc particles
1567   for(Int_t imc=0; imc<mc->GetNumberOfTracks(); imc++) {
1568     AliMCParticle *mcPart = (AliMCParticle*) mc->GetTrack(imc);
1569     if(!mcPart) continue;
1570
1571     if(mcPart->GetMother() >= 0) continue;
1572
1573     TParticle *part = (TParticle*) fGenPart->ConstructedAt(nmc++);
1574     part->SetMomentum(mcPart->Px(), mcPart->Py(), mcPart->Pz(), mcPart->E());
1575     part->SetPdgCode(mcPart->PdgCode());
1576     part->SetUniqueID(imc);
1577   }//loop over mc particles
1578
1579 }//RunESDMC
1580
1581
1582
1583 //_____________________________________________________________________________
1584 void AliAnalysisTaskUpcPsi2s::Terminate(Option_t *)
1585 {
1586
1587   cout<<"Analysis complete."<<endl;
1588 }//Terminate
1589
1590 //_____________________________________________________________________________
1591 Double_t AliAnalysisTaskUpcPsi2s::GetMedian(Double_t *daArray) {
1592     // Allocate an array of the same size and sort it.
1593     Double_t dpSorted[4];
1594     for (Int_t i = 0; i < 4; ++i) {
1595         dpSorted[i] = daArray[i];
1596     }
1597     for (Int_t i = 3; i > 0; --i) {
1598         for (Int_t j = 0; j < i; ++j) {
1599             if (dpSorted[j] > dpSorted[j+1]) {
1600                 Double_t dTemp = dpSorted[j];
1601                 dpSorted[j] = dpSorted[j+1];
1602                 dpSorted[j+1] = dTemp;
1603             }
1604         }
1605     }
1606
1607     // Middle or average of middle values in the sorted array.
1608     Double_t dMedian = 0.0;
1609     dMedian = (dpSorted[2] + dpSorted[1])/2.0;
1610
1611     return dMedian;
1612 }
1613
1614 //_____________________________________________________________________________
1615 void AliAnalysisTaskUpcPsi2s::RunAODsystematics(AliAODEvent* aod)
1616 {
1617
1618   Double_t fJPsiSels[4];
1619
1620   fJPsiSels[0] =   70; //min number of TPC clusters
1621   fJPsiSels[1] =   4; //chi2
1622   fJPsiSels[2] =   2; //DCAz
1623   fJPsiSels[3] =   1; // DCAxy 1x
1624
1625   Double_t fJPsiSelsMid[4];
1626
1627   fJPsiSelsMid[0] =   70; //min number of TPC clusters
1628   fJPsiSelsMid[1] =   4; //chi2
1629   fJPsiSelsMid[2] =   2; //DCAz
1630   fJPsiSelsMid[3] =   1; // DCAxy 1x
1631
1632   Double_t fJPsiSelsLoose[4];
1633
1634   fJPsiSelsLoose[0] =   60; //min number of TPC clusters
1635   fJPsiSelsLoose[1] =   5; //chi2
1636   fJPsiSelsLoose[2] =   3; //DCAz
1637   fJPsiSelsLoose[3] =   2; // DCAxy 2x
1638
1639   Double_t fJPsiSelsTight[4];
1640
1641   fJPsiSelsTight[0] =   80; //min number of TPC clusters
1642   fJPsiSelsTight[1] =   3.5; //chi2
1643   fJPsiSelsTight[2] =   1; //DCAz
1644   fJPsiSelsTight[3] =   0.5; // DCAxy 0.5x
1645
1646   Int_t nGoodTracks = 0;
1647   Int_t TrackIndex[5] = {-1,-1,-1,-1,-1};
1648
1649   TLorentzVector vLepton[4], vPion[4], vCandidate, vDilepton;
1650   Short_t qLepton[4],qPion[4];
1651   UInt_t nLepton=0, nPion=0, nHighPt=0;
1652   Double_t fRecTPCsignal[5], fRecTPCsignalDist;
1653   Int_t fChannel = 0;
1654
1655   AliAODVertex *fAODVertex = aod->GetPrimaryVertex();
1656
1657   TDatabasePDG *pdgdat = TDatabasePDG::Instance();
1658
1659   TParticlePDG *partMuon = pdgdat->GetParticle( 13 );
1660   Double_t muonMass = partMuon->Mass();
1661
1662   TParticlePDG *partElectron = pdgdat->GetParticle( 11 );
1663   Double_t electronMass = partElectron->Mass();
1664
1665   TParticlePDG *partPion = pdgdat->GetParticle( 211 );
1666   Double_t pionMass = partPion->Mass();
1667
1668
1669 for(Int_t i=0; i<5; i++){
1670           //cout<<"Loose sytematics, cut"<<i<<endl;
1671           for(Int_t j=0; j<4; j++){
1672                   if(i==j) fJPsiSels[j] = fJPsiSelsLoose[i];
1673                   else fJPsiSels[j] = fJPsiSelsMid[j];
1674           }
1675   //Two track loop
1676   nGoodTracks = 0;
1677   for(Int_t itr=0; itr<aod ->GetNumberOfTracks(); itr++) {
1678     AliAODTrack *trk = aod->GetTrack(itr);
1679     if( !trk ) continue;
1680     if(!(trk->TestFilterBit(1<<0))) continue;
1681
1682       if(!(trk->GetStatus() & AliESDtrack::kTPCrefit) ) continue;
1683       if(!(trk->GetStatus() & AliESDtrack::kITSrefit) ) continue;
1684       if(i!=4){ if((!trk->HasPointOnITSLayer(0))&&(!trk->HasPointOnITSLayer(1))) continue;}
1685       Double_t dca[2] = {0.0,0.0}, cov[3] = {0.0,0.0,0.0};
1686       AliAODTrack* trk_clone=(AliAODTrack*)trk->Clone("trk_clone");
1687       if(!trk_clone->PropagateToDCA(fAODVertex,aod->GetMagneticField(),300.,dca,cov)) continue;
1688       delete trk_clone;
1689       Double_t cut_DCAxy = (0.0182 + 0.0350/TMath::Power(trk->Pt(),1.01));
1690
1691       if(trk->GetTPCNcls() < fJPsiSels[0])continue;
1692       if(trk->Chi2perNDF() > fJPsiSels[1])continue;
1693       if(TMath::Abs(dca[1]) > fJPsiSels[2]) continue;
1694       if(TMath::Abs(dca[0]) > fJPsiSels[3]*cut_DCAxy) continue;
1695
1696       TrackIndex[nGoodTracks] = itr;
1697       nGoodTracks++;
1698
1699       if(nGoodTracks > 2) break;
1700   }//Track loop
1701
1702   Int_t mass[3]={-1,-1,-1};
1703   fChannel = 0;
1704   nLepton=0; nHighPt=0;
1705
1706   if(nGoodTracks == 2){
1707           for(Int_t k=0; k<2; k++){
1708                 AliAODTrack *trk = aod->GetTrack(TrackIndex[k]);
1709                 if(trk->Pt() > 1) nHighPt++;
1710                 fRecTPCsignal[nLepton] = trk->GetTPCsignal();
1711                 qLepton[nLepton] = trk->Charge();
1712                 if(fRecTPCsignal[nLepton] > 40 && fRecTPCsignal[nLepton] < 70){
1713                                 vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), muonMass);
1714                                 mass[nLepton] = 0;
1715                                 }
1716                 if(fRecTPCsignal[nLepton] > 70 && fRecTPCsignal[nLepton] < 100){
1717                                 vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), electronMass);
1718                                 mass[nLepton] = 1;
1719                                 }
1720                 nLepton++;
1721                 }
1722         if(nLepton == 2){
1723                 if(qLepton[0]*qLepton[1] < 0 && nHighPt > 0 && (mass[0]!=-1 || mass[1]!=-1)){
1724                         vCandidate = vLepton[0]+vLepton[1];
1725                         fRecTPCsignalDist = TMath::Sqrt(TMath::Power(fRecTPCsignal[0]-56,2)+TMath::Power(fRecTPCsignal[1]-56,2));
1726                         if (fRecTPCsignalDist < 3.6*4.0) fChannel = -1;
1727                         else {
1728                                 fRecTPCsignalDist = TMath::Sqrt(TMath::Power(fRecTPCsignal[0]-78,2)+TMath::Power(fRecTPCsignal[1]-78,2));
1729                                 if (fRecTPCsignalDist < 4.1*4.0) fChannel = 1;
1730                                 }
1731                         if(fChannel == -1 && vCandidate.Pt()<0.15) ((TH1D*)(fListJPsiLoose->At(i)))->Fill(vCandidate.M());
1732                         if(fChannel == 1 && vCandidate.Pt()<0.3) ((TH1D*)(fListJPsiLoose->At(i)))->Fill(vCandidate.M());
1733                         }
1734                 }
1735   }
1736 }//loose cuts
1737
1738 for(Int_t i=0; i<4; i++){
1739           //cout<<"Tight sytematics, cut"<<i<<endl;
1740           for(Int_t j=0; j<4; j++){
1741                   if(i==j) fJPsiSels[j] = fJPsiSelsTight[i];
1742                   else fJPsiSels[j] = fJPsiSelsMid[j];
1743           }
1744   //Two track loop
1745   nGoodTracks = 0;
1746   for(Int_t itr=0; itr<aod ->GetNumberOfTracks(); itr++) {
1747     AliAODTrack *trk = aod->GetTrack(itr);
1748     if( !trk ) continue;
1749     if(!(trk->TestFilterBit(1<<0))) continue;
1750
1751       if(!(trk->GetStatus() & AliESDtrack::kTPCrefit) ) continue;
1752       if(!(trk->GetStatus() & AliESDtrack::kITSrefit) ) continue;
1753       if((!trk->HasPointOnITSLayer(0))&&(!trk->HasPointOnITSLayer(1))) continue;
1754       Double_t dca[2] = {0.0,0.0}, cov[3] = {0.0,0.0,0.0};
1755       AliAODTrack* trk_clone=(AliAODTrack*)trk->Clone("trk_clone");
1756       if(!trk_clone->PropagateToDCA(fAODVertex,aod->GetMagneticField(),300.,dca,cov)) continue;
1757       delete trk_clone;
1758       Double_t cut_DCAxy = (0.0182 + 0.0350/TMath::Power(trk->Pt(),1.01));
1759
1760       if(trk->GetTPCNcls() < fJPsiSels[0])continue;
1761       if(trk->Chi2perNDF() > fJPsiSels[1])continue;
1762       if(TMath::Abs(dca[1]) > fJPsiSels[2]) continue;
1763       if(TMath::Abs(dca[0]) > fJPsiSels[3]*cut_DCAxy) continue;
1764
1765       TrackIndex[nGoodTracks] = itr;
1766       nGoodTracks++;
1767
1768       if(nGoodTracks > 2) break;
1769   }//Track loop
1770
1771   Int_t mass[3]={-1,-1,-1};
1772   fChannel = 0;
1773   nLepton=0; nHighPt=0;
1774
1775   if(nGoodTracks == 2){
1776           for(Int_t k=0; k<2; k++){
1777                 AliAODTrack *trk = aod->GetTrack(TrackIndex[k]);
1778                 if(trk->Pt() > 1) nHighPt++;
1779                 fRecTPCsignal[nLepton] = trk->GetTPCsignal();
1780                 qLepton[nLepton] = trk->Charge();
1781                 if(fRecTPCsignal[nLepton] > 40 && fRecTPCsignal[nLepton] < 70){
1782                                 vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), muonMass);
1783                                 mass[nLepton] = 0;
1784                                 }
1785                 if(fRecTPCsignal[nLepton] > 70 && fRecTPCsignal[nLepton] < 100){
1786                                 vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), electronMass);
1787                                 mass[nLepton] = 1;
1788                                 }
1789                 nLepton++;
1790                 }
1791         if(nLepton == 2){
1792                 if(qLepton[0]*qLepton[1] < 0 && nHighPt > 0 && (mass[0]!=-1 || mass[1]!=-1)){
1793                         vCandidate = vLepton[0]+vLepton[1];
1794                         fRecTPCsignalDist = TMath::Sqrt(TMath::Power(fRecTPCsignal[0]-56,2)+TMath::Power(fRecTPCsignal[1]-56,2));
1795                         if (fRecTPCsignalDist < 3.6*4.0) fChannel = -1;
1796                         else {
1797                                 fRecTPCsignalDist = TMath::Sqrt(TMath::Power(fRecTPCsignal[0]-78,2)+TMath::Power(fRecTPCsignal[1]-78,2));
1798                                 if (fRecTPCsignalDist < 4.1*4.0) fChannel = 1;
1799                                 }
1800                         if(fChannel == -1 && vCandidate.Pt()<0.15) ((TH1D*)(fListJPsiTight->At(i)))->Fill(vCandidate.M());
1801                         if(fChannel == 1 && vCandidate.Pt()<0.3) ((TH1D*)(fListJPsiTight->At(i)))->Fill(vCandidate.M());
1802                         }
1803                 }
1804   }
1805 }//tight cuts
1806
1807 //---------------------------------------------Psi2s------------------------------------------------------------------------
1808
1809   Double_t fPsi2sSels[4];
1810
1811   fPsi2sSels[0] =   50; //min number of TPC clusters
1812   fPsi2sSels[1] =   4; //chi2
1813   fPsi2sSels[2] =   2; //DCAz
1814   fPsi2sSels[3] =   4; // DCAxy 1x
1815
1816   Double_t fPsi2sSelsMid[4];
1817
1818   fPsi2sSelsMid[0] =   50; //min number of TPC clusters
1819   fPsi2sSelsMid[1] =   4; //chi2
1820   fPsi2sSelsMid[2] =   2; //DCAz
1821   fPsi2sSelsMid[3] =   4; // DCAxy 1x
1822
1823   Double_t fPsi2sSelsLoose[4];
1824
1825   fPsi2sSelsLoose[0] =   60; //min number of TPC clusters
1826   fPsi2sSelsLoose[1] =   5; //chi2
1827   fPsi2sSelsLoose[2] =   3; //DCAz
1828   fPsi2sSelsLoose[3] =   6; // DCAxy 2x
1829
1830   Double_t fPsi2sSelsTight[4];
1831
1832   fPsi2sSelsTight[0] =   70; //min number of TPC clusters
1833   fPsi2sSelsTight[1] =   3.5; //chi2
1834   fPsi2sSelsTight[2] =   1; //DCAz
1835   fPsi2sSelsTight[3] =   2; // DCAxy 0.5x
1836
1837   nGoodTracks = 0; nLepton=0; nHighPt=0; fChannel = 0;
1838   Int_t nSpdHits = 0;
1839   Double_t TrackPt[5]={0,0,0,0,0};
1840   Double_t MeanPt = -1;
1841
1842 for(Int_t i=0; i<5; i++){
1843           //cout<<"Loose systematics psi2s, cut"<<i<<endl;
1844           for(Int_t j=0; j<4; j++){
1845                   if(i==j) fJPsiSels[j] = fJPsiSelsLoose[i];
1846                   else fJPsiSels[j] = fJPsiSelsMid[j];
1847           }
1848
1849   //Four track loop
1850   nGoodTracks = 0; nSpdHits = 0;
1851   for(Int_t itr=0; itr<aod ->GetNumberOfTracks(); itr++) {
1852     AliAODTrack *trk = aod->GetTrack(itr);
1853     if( !trk ) continue;
1854     if(!(trk->TestFilterBit(1<<0))) continue;
1855
1856       if(!(trk->GetStatus() & AliESDtrack::kTPCrefit) ) continue;
1857       if(!(trk->GetStatus() & AliESDtrack::kITSrefit) ) continue;
1858       if((trk->HasPointOnITSLayer(0))||(trk->HasPointOnITSLayer(1))) nSpdHits++;
1859       Double_t dca[2] = {0.0,0.0}, cov[3] = {0.0,0.0,0.0};
1860       AliAODTrack* trk_clone=(AliAODTrack*)trk->Clone("trk_clone");
1861       if(!trk_clone->PropagateToDCA(fAODVertex,aod->GetMagneticField(),300.,dca,cov)) continue;
1862       delete trk_clone;
1863       Double_t cut_DCAxy = (0.0182 + 0.0350/TMath::Power(trk->Pt(),1.01));
1864
1865       if(trk->GetTPCNcls() < fJPsiSels[0])continue;
1866       if(trk->Chi2perNDF() > fJPsiSels[1])continue;
1867       if(TMath::Abs(dca[1]) > fJPsiSels[2]) continue;
1868       if(TMath::Abs(dca[0]) > fJPsiSels[3]*cut_DCAxy) continue;
1869       if((trk->HasPointOnITSLayer(0))||(trk->HasPointOnITSLayer(1))) nSpdHits++;
1870
1871       TrackIndex[nGoodTracks] = itr;
1872       TrackPt[nGoodTracks] = trk->Pt();
1873       nGoodTracks++;
1874
1875       if(nGoodTracks > 4) break;
1876   }//Track loop
1877
1878   Int_t mass[3]={-1,-1,-1};
1879   fChannel = 0;
1880   nLepton=0; nPion=0; nHighPt=0;
1881
1882   if(nGoodTracks == 4){
1883           if(i!=4){ if(nSpdHits<2) continue;}
1884           MeanPt = GetMedian(TrackPt);
1885           for(Int_t k=0; k<4; k++){
1886                 AliAODTrack *trk = aod->GetTrack(TrackIndex[k]);
1887                 if(trk->Pt() > MeanPt){
1888                         fRecTPCsignal[nLepton] = trk->GetTPCsignal();
1889                         qLepton[nLepton] = trk->Charge();
1890                         if(fRecTPCsignal[nLepton] > 40 && fRecTPCsignal[nLepton] < 70){
1891                                         vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), muonMass);
1892                                         mass[nLepton] = 0;
1893                                         }
1894                         if(fRecTPCsignal[nLepton] > 70 && fRecTPCsignal[nLepton] < 100){
1895                                         vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), electronMass);
1896                                         mass[nLepton] = 1;
1897                                         }
1898                         nLepton++;
1899                         }
1900                 else{
1901                         qPion[nPion] = trk->Charge();
1902                         vPion[nPion].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), pionMass);
1903                         nPion++;
1904                         }
1905                 }
1906         if((qLepton[0]*qLepton[1] < 0) && (qPion[0]*qPion[1] < 0) && mass[0] != -1 && mass[1] != -1){
1907                 vCandidate = vLepton[0]+vLepton[1]+vPion[0]+vPion[1];
1908                 vDilepton = vLepton[0]+vLepton[1];
1909                 fRecTPCsignalDist = TMath::Sqrt(TMath::Power(fRecTPCsignal[0]-56,2)+TMath::Power(fRecTPCsignal[1]-56,2));
1910                 if (fRecTPCsignalDist < 3.6*4.0) fChannel = -1;
1911                 else {
1912                         fRecTPCsignalDist = TMath::Sqrt(TMath::Power(fRecTPCsignal[0]-78,2)+TMath::Power(fRecTPCsignal[1]-78,2));
1913                         if (fRecTPCsignalDist < 4.1*4.0) fChannel = 1;
1914                         }
1915                 if(fChannel == -1) if(vDilepton.M() > 3.0 && vDilepton.M() < 3.2 && vCandidate.Pt()<0.15) ((TH1D*)(fListPsi2sLoose->At(i)))->Fill(vCandidate.M());
1916                 if(fChannel == 1) if(vDilepton.M() > 2.6 && vDilepton.M() < 3.2 && vCandidate.Pt()<0.3) ((TH1D*)(fListPsi2sLoose->At(i)))->Fill(vCandidate.M());
1917         }
1918   }
1919 }//loose cuts
1920
1921 for(Int_t i=0; i<4; i++){
1922           //cout<<"Tight systematics psi2s, cut"<<i<<endl;
1923           for(Int_t j=0; j<4; j++){
1924                   if(i==j) fJPsiSels[j] = fJPsiSelsTight[i];
1925                   else fJPsiSels[j] = fJPsiSelsMid[j];
1926           }
1927
1928   //Four track loop
1929   nGoodTracks = 0; nSpdHits = 0;
1930   for(Int_t itr=0; itr<aod ->GetNumberOfTracks(); itr++) {
1931     AliAODTrack *trk = aod->GetTrack(itr);
1932     if( !trk ) continue;
1933     if(!(trk->TestFilterBit(1<<0))) continue;
1934
1935       if(!(trk->GetStatus() & AliESDtrack::kTPCrefit) ) continue;
1936       if(!(trk->GetStatus() & AliESDtrack::kITSrefit) ) continue;
1937       if((trk->HasPointOnITSLayer(0))||(trk->HasPointOnITSLayer(1))) nSpdHits++;
1938       Double_t dca[2] = {0.0,0.0}, cov[3] = {0.0,0.0,0.0};
1939       AliAODTrack* trk_clone=(AliAODTrack*)trk->Clone("trk_clone");
1940       if(!trk_clone->PropagateToDCA(fAODVertex,aod->GetMagneticField(),300.,dca,cov)) continue;
1941       delete trk_clone;
1942       Double_t cut_DCAxy = (0.0182 + 0.0350/TMath::Power(trk->Pt(),1.01));
1943
1944       if(trk->GetTPCNcls() < fJPsiSels[0])continue;
1945       if(trk->Chi2perNDF() > fJPsiSels[1])continue;
1946       if(TMath::Abs(dca[1]) > fJPsiSels[2]) continue;
1947       if(TMath::Abs(dca[0]) > fJPsiSels[3]*cut_DCAxy) continue;
1948       if((trk->HasPointOnITSLayer(0))||(trk->HasPointOnITSLayer(1))) nSpdHits++;
1949
1950       TrackIndex[nGoodTracks] = itr;
1951       TrackPt[nGoodTracks] = trk->Pt();
1952       nGoodTracks++;
1953
1954       if(nGoodTracks > 4) break;
1955   }//Track loop
1956
1957   Int_t mass[3]={-1,-1,-1};
1958   fChannel = 0;
1959     nLepton=0; nPion=0; nHighPt=0;
1960
1961   if(nGoodTracks == 4){
1962           if(nSpdHits<2) continue;
1963           MeanPt = GetMedian(TrackPt);
1964           for(Int_t k=0; k<4; k++){
1965                 AliAODTrack *trk = aod->GetTrack(TrackIndex[k]);
1966                 if(trk->Pt() > MeanPt){
1967                         fRecTPCsignal[nLepton] = trk->GetTPCsignal();
1968                         qLepton[nLepton] = trk->Charge();
1969                         if(fRecTPCsignal[nLepton] > 40 && fRecTPCsignal[nLepton] < 70){
1970                                         vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), muonMass);
1971                                         mass[nLepton] = 0;
1972                                         }
1973                         if(fRecTPCsignal[nLepton] > 70 && fRecTPCsignal[nLepton] < 100){
1974                                         vLepton[nLepton].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), electronMass);
1975                                         mass[nLepton] = 1;
1976                                         }
1977                         nLepton++;
1978                         }
1979                 else{
1980                         qPion[nPion] = trk->Charge();
1981                         vPion[nPion].SetPtEtaPhiM(trk->Pt(), trk->Eta(), trk->Phi(), pionMass);
1982                         nPion++;
1983                         }
1984                 }
1985         if((qLepton[0]*qLepton[1] < 0) && (qPion[0]*qPion[1] < 0) && mass[0] != -1 && mass[1] != -1){
1986                 vCandidate = vLepton[0]+vLepton[1]+vPion[0]+vPion[1];
1987                 vDilepton = vLepton[0]+vLepton[1];
1988                 fRecTPCsignalDist = TMath::Sqrt(TMath::Power(fRecTPCsignal[0]-56,2)+TMath::Power(fRecTPCsignal[1]-56,2));
1989                 if (fRecTPCsignalDist < 3.6*4.0) fChannel = -1;
1990                 else {
1991                         fRecTPCsignalDist = TMath::Sqrt(TMath::Power(fRecTPCsignal[0]-78,2)+TMath::Power(fRecTPCsignal[1]-78,2));
1992                         if (fRecTPCsignalDist < 4.1*4.0) fChannel = 1;
1993                         }
1994                 if(fChannel == -1) if(vDilepton.M() > 3.0 && vDilepton.M() < 3.2 && vCandidate.Pt()<0.15) ((TH1D*)(fListPsi2sTight->At(i)))->Fill(vCandidate.M());
1995                 if(fChannel == 1) if(vDilepton.M() > 2.6 && vDilepton.M() < 3.2 && vCandidate.Pt()<0.3) ((TH1D*)(fListPsi2sTight->At(i)))->Fill(vCandidate.M());
1996         }
1997   }
1998 }//Tight cuts
1999
2000 }