--- /dev/null
+/**************************************************************************\r
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *\r
+ * *\r
+ * Author: The ALICE Off-line Project. *\r
+ * Contributors are mentioned in the code where appropriate. *\r
+ * *\r
+ * Permission to use, copy, modify and distribute this software and its *\r
+ * documentation strictly for non-commercial purposes is hereby granted *\r
+ * without fee, provided that the above copyright notice appears in all *\r
+ * copies and that both the copyright notice and this permission notice *\r
+ * appear in the supporting documentation. The authors make no claims *\r
+ * about the suitability of this software for any purpose. It is *\r
+ * provided "as is" without express or implied warranty. *\r
+ **************************************************************************/\r
+/* $Id: $ */\r
+//_________________________________________________________________________\r
+// class to extract omega(782)->pi0+gamma->3gamma\r
+//\r
+//-- Author: Renzhuo Wan (IOPP-Wuhan, China)\r
+//_________________________________________________________________________\r
+\r
+// --- ROOT system\r
+class TROOT;\r
+\r
+// --- AliRoot system\r
+//class AliVEvent;\r
+// --- ROOT system ---\r
+#include "TH2F.h"\r
+#include "TLorentzVector.h"\r
+#include "TParticle.h"\r
+#include "TCanvas.h"\r
+#include "TFile.h"\r
+//---- AliRoot system ----\r
+#include "AliAnaOmegaToPi0Gamma.h"\r
+#include "AliCaloTrackReader.h"\r
+#include "AliCaloPID.h"\r
+#include "AliStack.h"\r
+#include "AliVEvent.h"\r
+#include "AliAODEvent.h"\r
+#include "AliAODMCParticle.h"\r
+ClassImp(AliAnaOmegaToPi0Gamma)\r
+\r
+//______________________________________________________________________________\r
+AliAnaOmegaToPi0Gamma::AliAnaOmegaToPi0Gamma() : AliAnaPartCorrBaseClass(),\r
+fInputAODGamma(0),fInputAODPi0(0), fInputAODGammaName(""),\r
+fEventsList(0), \r
+fVtxZCut(0), fCent(0), fRp(0), fBadChDist(0),\r
+fNVtxZBin(0), fNCentBin(0), fNRpBin(0), fNBadChDistBin(0), fNpid(0),\r
+fNmaxMixEv(0), fPi0Mass(0),\r
+fPi0MassWindow(0),\r
+fNbinsPt(0),fPtBegin(0),fPtEnd(0),\r
+fNbinsM(0),fMinM(0),fMaxM(0),\r
+fhEtalon(0),\r
+fRealOmega(0), fMixAOmega(0),\r
+fMixBOmega(0), fMixCOmega(0),\r
+fRealOmega1(0), fMixAOmega1(0),\r
+fMixBOmega1(0), fMixCOmega1(0),\r
+fRealOmega2(0), fMixAOmega2(0),\r
+fMixBOmega2(0), fMixCOmega2(0),\r
+fhOmegaPriPt(0)\r
+{\r
+ //Default Ctor\r
+ InitParameters();\r
+}\r
+\r
+//______________________________________________________________________________\r
+AliAnaOmegaToPi0Gamma::AliAnaOmegaToPi0Gamma(const AliAnaOmegaToPi0Gamma & ex) : AliAnaPartCorrBaseClass(ex),\r
+fInputAODGamma(new TClonesArray (*ex.fInputAODGamma)), \r
+fInputAODPi0(new TClonesArray (*ex.fInputAODPi0)),\r
+fInputAODGammaName(ex.fInputAODGammaName),\r
+fEventsList(ex.fEventsList), \r
+fVtxZCut(ex.fVtxZCut), fCent(ex.fCent), fRp(ex.fRp), fBadChDist(ex.fBadChDist),\r
+fNVtxZBin(ex.fNVtxZBin), fNCentBin(ex.fNCentBin), fNRpBin(ex.fNRpBin),\r
+fNBadChDistBin(ex.fNBadChDistBin),fNpid(ex.fNpid),\r
+fNmaxMixEv(ex.fNmaxMixEv), fPi0Mass(ex.fPi0Mass),\r
+fPi0MassWindow(ex.fPi0MassWindow),\r
+fNbinsPt(ex.fNbinsPt),fPtBegin(ex.fPtBegin),fPtEnd(ex.fPtEnd),\r
+fNbinsM(ex.fNbinsM),fMinM(ex.fMinM),fMaxM(ex.fMaxM),\r
+fhEtalon(ex.fhEtalon),\r
+fRealOmega(ex.fRealOmega), fMixAOmega(ex.fMixAOmega),\r
+fMixBOmega(ex.fMixBOmega), fMixCOmega(ex.fMixCOmega),\r
+fRealOmega1(ex.fRealOmega1), fMixAOmega1(ex.fMixAOmega1),\r
+fMixBOmega1(ex.fMixBOmega1), fMixCOmega1(ex.fMixCOmega1),\r
+fRealOmega2(ex.fRealOmega2), fMixAOmega2(ex.fMixAOmega2),\r
+fMixBOmega2(ex.fMixBOmega2), fMixCOmega2(ex.fMixCOmega2),\r
+fhOmegaPriPt(ex.fhOmegaPriPt)\r
+{\r
+ // cpy ctor\r
+ //Do not need it\r
+}\r
+\r
+//______________________________________________________________________________\r
+AliAnaOmegaToPi0Gamma & AliAnaOmegaToPi0Gamma::operator = (const AliAnaOmegaToPi0Gamma & ex)\r
+{\r
+ // assignment operator\r
+\r
+ if(this == &ex)return *this;\r
+ ((AliAnaPartCorrBaseClass *)this)->operator=(ex);\r
+ fInputAODGamma = new TClonesArray(*ex.fInputAODGamma);\r
+ fInputAODPi0 = new TClonesArray(*ex.fInputAODPi0);\r
+// fInputAODGamma=ex.fInputAODGamma;\r
+// fInputAODPi0=ex.fInputAODPi0;\r
+ fInputAODGammaName = ex.fInputAODGammaName;\r
+ fEventsList = ex.fEventsList;\r
+\r
+ fVtxZCut=ex.fVtxZCut;\r
+ fCent=ex.fCent;\r
+ fRp=ex.fRp;\r
+ fBadChDist=ex.fBadChDist;\r
+ fNVtxZBin=ex.fNVtxZBin; \r
+ fNCentBin=ex.fNCentBin;\r
+ fNRpBin=ex.fNRpBin;\r
+ fNBadChDistBin=ex.fNBadChDistBin;\r
+ fNpid=ex.fNpid;\r
+\r
+ fNmaxMixEv =ex.fNmaxMixEv;\r
+ fPi0Mass=ex.fPi0Mass;\r
+ fPi0MassWindow=ex.fPi0MassWindow;\r
+\r
+ fNbinsPt=ex.fNbinsPt;fPtBegin=ex.fPtBegin;fPtEnd=ex.fPtEnd;\r
+ fNbinsM=ex.fNbinsM;fMinM=ex.fMinM;fMaxM=ex.fMaxM;\r
+ \r
+ fhEtalon=ex.fhEtalon;\r
+ fRealOmega=ex.fRealOmega;\r
+ fMixAOmega=ex.fMixAOmega;\r
+ fMixBOmega=ex.fMixBOmega;\r
+ fMixCOmega=ex.fMixCOmega;\r
+ fRealOmega1=ex.fRealOmega1;\r
+ fMixAOmega1=ex.fMixAOmega1;\r
+ fMixBOmega1=ex.fMixBOmega1;\r
+ fMixCOmega1=ex.fMixCOmega1;\r
+ fRealOmega2=ex.fRealOmega2;\r
+ fMixAOmega2=ex.fMixAOmega2;\r
+ fMixBOmega2=ex.fMixBOmega2;\r
+ fMixCOmega2=ex.fMixCOmega2;\r
+ fhOmegaPriPt=ex.fhOmegaPriPt;\r
+ return *this;\r
+ \r
+}\r
+\r
+//______________________________________________________________________________\r
+AliAnaOmegaToPi0Gamma::~AliAnaOmegaToPi0Gamma() {\r
+\r
+ //dtor\r
+ if(fInputAODGamma){\r
+ fInputAODGamma->Clear();\r
+ delete fInputAODGamma;\r
+ }\r
+ \r
+ if(fInputAODPi0){\r
+ fInputAODPi0->Clear();\r
+ delete fInputAODPi0;\r
+ } \r
+\r
+ if(fEventsList){\r
+ for(Int_t i=0;i<fNVtxZBin;i++){\r
+ for(Int_t j=0;j<fNCentBin;j++){\r
+ for(Int_t k=0;k<fNRpBin;k++){\r
+ fEventsList[i*fNCentBin*fNRpBin+j*fNRpBin+k]->Clear();\r
+ delete fEventsList[i*fNCentBin*fNRpBin+j*fNRpBin+k];\r
+ }\r
+ }\r
+ }\r
+ }\r
+ delete [] fEventsList;\r
+ fEventsList=0;\r
+}\r
+\r
+//______________________________________________________________________________\r
+void AliAnaOmegaToPi0Gamma::InitParameters()\r
+{\r
+//Init parameters when first called the analysis\r
+//Set default parameters\r
+ fInputAODGammaName = "PhotonsPHOS";\r
+ fNmaxMixEv = 4;\r
+\r
+ fPi0Mass=0.13498;\r
+ fPi0MassWindow=0.015;\r
+ fNbinsPt=200;\r
+ fPtBegin=0;\r
+ fPtEnd=20;\r
+ fNbinsM=100; //mass bin number, min and max\r
+ fMinM=0;\r
+ fMaxM=1;\r
+\r
+ fNVtxZBin=1;\r
+ fNCentBin=1;\r
+ fNRpBin=1;\r
+ fNBadChDistBin=1;\r
+ fNpid=3;\r
+\r
+ fVtxZCut = new Double_t [fNVtxZBin];\r
+ fVtxZCut[0]=30;\r
+ //fVtxZCut[0]=10 ; fVtxZCut[1]=20 ; fVtxZCut[2]=30 ;// fVtxZCut[3]=40 ;;\r
+\r
+ fCent=new Double_t[fNCentBin];\r
+ fCent[0]=0;\r
+\r
+ fRp=new Double_t[fNRpBin];\r
+ fRp[0]=0;\r
+\r
+ fBadChDist=new Int_t [fNBadChDistBin];\r
+// fBadChDist[0]=0; fBadChDist[1]=1; fBadChDist[2]=2;\r
+ fBadChDist[0]=0; \r
+\r
+ fhEtalon = new TH2F("hEtalon","Histo with binning parameters", fNbinsPt,fPtBegin, fPtEnd,fNbinsM,fMinM,fMaxM) ;\r
+ fhEtalon->SetXTitle("P_{T} (GeV)") ;\r
+ fhEtalon->SetYTitle("m_{inv} (GeV)") ;\r
+\r
+}\r
+\r
+\r
+//______________________________________________________________________________\r
+TList * AliAnaOmegaToPi0Gamma::GetCreateOutputObjects()\r
+{ \r
+ // store them in fOutputContainer\r
+ fEventsList = new TList*[fNVtxZBin*fNCentBin*fNRpBin];\r
+ for(Int_t i=0;i<fNVtxZBin;i++){\r
+ for(Int_t j=0;j<fNCentBin;j++){\r
+ for(Int_t k=0;k<fNRpBin;k++){\r
+ fEventsList[i*fNCentBin*fNRpBin+j*fNRpBin+k]=new TList();\r
+ }\r
+ }\r
+ }\r
+\r
+ \r
+ TList * outputContainer = new TList() ; \r
+ outputContainer->SetName(GetName());\r
+ char key[255] ;\r
+ char title[255] ;\r
+ const char * detector= fInputAODGammaName.Data();\r
+ Int_t ndim=fNVtxZBin*fNCentBin*fNRpBin*fNBadChDistBin*fNpid;\r
+\r
+ fRealOmega =new TH2F*[ndim];\r
+ fMixAOmega =new TH2F*[ndim];\r
+ fMixBOmega =new TH2F*[ndim];\r
+ fMixCOmega =new TH2F*[ndim];\r
+ \r
+ fRealOmega1 =new TH2F*[ndim];\r
+ fMixAOmega1 =new TH2F*[ndim];\r
+ fMixBOmega1 =new TH2F*[ndim];\r
+ fMixCOmega1 =new TH2F*[ndim];\r
+\r
+ fRealOmega2 =new TH2F*[ndim];\r
+ fMixAOmega2 =new TH2F*[ndim];\r
+ fMixBOmega2 =new TH2F*[ndim];\r
+ fMixCOmega2 =new TH2F*[ndim];\r
+\r
+ for(Int_t i=0;i<fNVtxZBin;i++){\r
+ for(Int_t j=0;j<fNCentBin;j++){\r
+ for(Int_t k=0;k<fNRpBin;k++){ //at event level\r
+ Int_t idim=i*fNCentBin*fNRpBin+j*fNRpBin+k;\r
+ for(Int_t ipid=0;ipid<fNpid;ipid++){\r
+ for(Int_t idist=0;idist<fNBadChDistBin;idist++){ //at particle level\r
+\r
+ Int_t index=idim*fNpid*fNBadChDistBin+ipid*fNBadChDistBin+idist;\r
+\r
+ sprintf(key,"RPi0Gamma_Vz%dC%dRp%dPid%dDist%d",i,j,k,ipid,idist);\r
+ sprintf(title, "%s Real Pi0GammaIVM vz_%2.1f_ct_%2.1f_Rp_%2.1f_pid_%d_dist_%d",detector,fVtxZCut[i],fCent[j],fRp[k],ipid,fBadChDist[idist]);\r
+ fhEtalon->Clone(key);\r
+ fRealOmega[index]=(TH2F*)fhEtalon->Clone(key) ;\r
+ fRealOmega[index]->SetName(key) ;\r
+ fRealOmega[index]->SetTitle(title);\r
+ outputContainer->Add(fRealOmega[index]);\r
+\r
+ sprintf(key,"MAPi0Gamma_Vz%dC%dRp%dPid%dDist%d",i,j,k,ipid,idist);\r
+ sprintf(title, "%s MixA Pi0GammaIVM vz_%2.1f_ct_%2.1f_Rp_%2.1f_pid_%d_dist_%d",detector,fVtxZCut[i],fCent[j],fRp[k],ipid,fBadChDist[idist]);\r
+ fhEtalon->Clone(key);\r
+ fMixAOmega[index]=(TH2F*)fhEtalon->Clone(key) ;\r
+ fMixAOmega[index]->SetName(key) ;\r
+ fMixAOmega[index]->SetTitle(title);\r
+ outputContainer->Add(fMixAOmega[index]);\r
+\r
+ sprintf(key,"MBPi0Gamma_Vz%dC%dRp%dPid%dDist%d",i,j,k,ipid,idist);\r
+ sprintf(title, "%s MixB Pi0GammaIVM vz_%2.1f_ct_%2.1f_Rp_%2.1f_pid_%d_dist_%d",detector,fVtxZCut[i],fCent[j],fRp[k],ipid,fBadChDist[idist]);\r
+ fhEtalon->Clone(key);\r
+ fMixBOmega[index]=(TH2F*)fhEtalon->Clone(key) ;\r
+ fMixBOmega[index]->SetName(key) ;\r
+ fMixBOmega[index]->SetTitle(title);\r
+ outputContainer->Add(fMixBOmega[index]);\r
+\r
+ sprintf(key,"MCPi0Gamma_Vz%dC%dRp%dPid%dDist%d",i,j,k,ipid,idist);\r
+ sprintf(title, "%s MixC Pi0GammaIVM vz_%2.1f_ct_%2.1f_Rp_%2.1f_pid_%d_dist_%d",detector,fVtxZCut[i],fCent[j],fRp[k],ipid,fBadChDist[idist]);\r
+ fhEtalon->Clone(key);\r
+ fMixCOmega[index]=(TH2F*)fhEtalon->Clone(key) ;\r
+ fMixCOmega[index]->SetName(key) ;\r
+ fMixCOmega[index]->SetTitle(title);\r
+ outputContainer->Add(fMixCOmega[index]);\r
+\r
+ sprintf(key,"RPi0Gamma1_Vz%dC%dRp%dPid%dDist%d",i,j,k,ipid,idist);\r
+ sprintf(title, "%s Real Pi0(A<0.7)GammaIVM vz_%2.1f_ct_%2.1f_Rp_%2.1f_pid_%d_dist_%d",detector,fVtxZCut[i],fCent[j],fRp[k],ipid,fBadChDist[idist]);\r
+ fhEtalon->Clone(key);\r
+ fRealOmega1[index]=(TH2F*)fhEtalon->Clone(key) ;\r
+ fRealOmega1[index]->SetName(key) ;\r
+ fRealOmega1[index]->SetTitle(title);\r
+ outputContainer->Add(fRealOmega1[index]);\r
+\r
+ sprintf(key,"MAPi0Gamma1_Vz%dC%dRp%dPid%dDist%d",i,j,k,ipid,idist);\r
+ sprintf(title, "%s MixA Pi0(A<0.7)GammaIVM vz_%2.1f_ct_%2.1f_Rp_%2.1f_pid_%d_dist_%d",detector,fVtxZCut[i],fCent[j],fRp[k],ipid,fBadChDist[idist]);\r
+ fhEtalon->Clone(key);\r
+ fMixAOmega1[index]=(TH2F*)fhEtalon->Clone(key) ;\r
+ fMixAOmega1[index]->SetName(key) ;\r
+ fMixAOmega1[index]->SetTitle(title);\r
+ outputContainer->Add(fMixAOmega1[index]);\r
+\r
+ sprintf(key,"MBPi0Gamma1_Vz%dC%dRp%dPid%dDist%d",i,j,k,ipid,idist);\r
+ sprintf(title, "%s MixB Pi0(A<0.7)GammaIVM vz_%2.1f_ct_%2.1f_Rp_%2.1f_pid_%d_dist_%d",detector,fVtxZCut[i],fCent[j],fRp[k],ipid,fBadChDist[idist]);\r
+ fhEtalon->Clone(key);\r
+ fMixBOmega1[index]=(TH2F*)fhEtalon->Clone(key) ;\r
+ fMixBOmega1[index]->SetName(key) ;\r
+ fMixBOmega1[index]->SetTitle(title);\r
+ outputContainer->Add(fMixBOmega1[index]);\r
+\r
+ sprintf(key,"MCPi0Gamma1_Vz%dC%dRp%dPid%dDist%d",i,j,k,ipid,idist);\r
+ sprintf(title, "%s MixC Pi0(A<0.7)GammaIVM vz_%2.1f_ct_%2.1f_Rp_%2.1f_pid_%d_dist_%d",detector,fVtxZCut[i],fCent[j],fRp[k],ipid,fBadChDist[idist]);\r
+ fhEtalon->Clone(key);\r
+ fMixCOmega1[index]=(TH2F*)fhEtalon->Clone(key) ;\r
+ fMixCOmega1[index]->SetName(key) ;\r
+ fMixCOmega1[index]->SetTitle(title);\r
+ outputContainer->Add(fMixCOmega1[index]);\r
+\r
+ sprintf(key,"RPi0Gamma2_Vz%dC%dRp%dPid%dDist%d",i,j,k,ipid,idist);\r
+ sprintf(title, "%s Real Pi0(A<0.8)GammaIVM vz_%2.1f_ct_%2.1f_Rp_%2.1f_pid_%d_dist_%d",detector,fVtxZCut[i],fCent[j],fRp[k],ipid,fBadChDist[idist]);\r
+ fhEtalon->Clone(key);\r
+ fRealOmega2[index]=(TH2F*)fhEtalon->Clone(key) ;\r
+ fRealOmega2[index]->SetName(key) ;\r
+ fRealOmega2[index]->SetTitle(title);\r
+ outputContainer->Add(fRealOmega2[index]);\r
+\r
+ sprintf(key,"MAPi0Gamma2_Vz%dC%dRp%dPid%dDist%d",i,j,k,ipid,idist);\r
+ sprintf(title, "%s MixA Pi0(A<0.8)GammaIVM vz_%2.1f_ct_%2.1f_Rp_%2.1f_pid_%d_dist_%d",detector,fVtxZCut[i],fCent[j],fRp[k],ipid,fBadChDist[idist]);\r
+ fhEtalon->Clone(key);\r
+ fMixAOmega2[index]=(TH2F*)fhEtalon->Clone(key) ;\r
+ fMixAOmega2[index]->SetName(key) ;\r
+ fMixAOmega2[index]->SetTitle(title);\r
+ outputContainer->Add(fMixAOmega2[index]);\r
+\r
+ sprintf(key,"MBPi0Gamma2_Vz%dC%dRp%dPid%dDist%d",i,j,k,ipid,idist);\r
+ sprintf(title, "%s MixB Pi0(A<0.8)GammaIVM vz_%2.1f_ct_%2.1f_Rp_%2.1f_pid_%d_dist_%d",detector,fVtxZCut[i],fCent[j],fRp[k],ipid,fBadChDist[idist]);\r
+ fhEtalon->Clone(key);\r
+ fMixBOmega2[index]=(TH2F*)fhEtalon->Clone(key) ;\r
+ fMixBOmega2[index]->SetName(key) ;\r
+ fMixBOmega2[index]->SetTitle(title);\r
+ outputContainer->Add(fMixBOmega2[index]);\r
+\r
+ sprintf(key,"MCPi0Gamma2_Vz%dC%dRp%dPid%dDist%d",i,j,k,ipid,idist);\r
+ sprintf(title, "%s MixC Pi0(A<0.8)GammaIVM vz_%2.1f_ct_%2.1f_Rp_%2.1f_pid_%d_dist_%d",detector,fVtxZCut[i],fCent[j],fRp[k],ipid,fBadChDist[idist]);\r
+ fhEtalon->Clone(key);\r
+ fMixCOmega2[index]=(TH2F*)fhEtalon->Clone(key) ;\r
+ fMixCOmega2[index]->SetName(key) ;\r
+ fMixCOmega2[index]->SetTitle(title);\r
+ outputContainer->Add(fMixCOmega2[index]);\r
+ }\r
+ }\r
+ }\r
+ } \r
+ }\r
+\r
+ if(IsDataMC()){\r
+ sprintf(key, "%sOmegaPri",detector);\r
+ sprintf(title,"primary #omega in %s",detector);\r
+ fhOmegaPriPt=new TH1F(key, title,fNbinsPt,fPtBegin,fPtEnd);\r
+ fhOmegaPriPt->GetXaxis()->SetTitle("P_{T}");\r
+ fhOmegaPriPt->GetYaxis()->SetTitle("dN/P_{T}");\r
+ outputContainer->Add(fhOmegaPriPt);\r
+ }\r
+\r
+ delete fhEtalon;\r
+ return outputContainer;\r
+}\r
+\r
+//______________________________________________________________________________\r
+void AliAnaOmegaToPi0Gamma::Print(const Option_t * /*opt*/) const\r
+{\r
+ //Print some relevant parameters set in the analysis\r
+ printf("**** Print %s %s ****\n", GetName(), GetTitle() ) ;\r
+ AliAnaPartCorrBaseClass::Print(" ");\r
+ printf("Omega->pi0+gamma->3gamma\n");\r
+ printf("Cuts at event level: \n");\r
+ printf("Bins of vertex Z: %d \n", fNVtxZBin);\r
+ printf("Bins of centrality: %d \n",fNCentBin);\r
+ printf("Bins of Reaction plane: %d\n",fNRpBin);\r
+ printf("Cuts at AOD particle level:\n");\r
+ printf("Number of PID: %d \n", fNpid);\r
+ printf("Number of DistToBadChannel cuts: %d\n", fNBadChDistBin);\r
+ printf("number of events buffer to be mixed: %d\n",fNmaxMixEv);\r
+} \r
+\r
+//______________________________________________________________________________\r
+void AliAnaOmegaToPi0Gamma::MakeAnalysisFillHistograms() \r
+{\r
+ //fill the MC AOD if needed first\r
+ //-----------\r
+ //need to be further implemented\r
+ AliStack * stack = 0x0;\r
+// TParticle * primary = 0x0;\r
+ TClonesArray * mcparticles0 = 0x0;\r
+ TClonesArray * mcparticles1 = 0x0;\r
+ AliAODMCParticle * aodprimary = 0x0;\r
+ Int_t pdg=0;\r
+ Double_t pt=0;\r
+ Double_t eta=0;\r
+\r
+ if(IsDataMC()){\r
+ if(GetReader()->ReadStack()){\r
+ stack = GetMCStack() ;\r
+ if(!stack)\r
+ printf("AliAnaAcceptance::MakeAnalysisFillHistograms() - There is no stack!\n");\r
+ for(Int_t i=0 ; i<stack->GetNtrack(); i++){\r
+ TParticle * prim = stack->Particle(i) ;\r
+ pdg = prim->GetPdgCode() ;\r
+ eta=prim->Eta();\r
+ pt=prim->Pt();\r
+ if(TMath::Abs(eta)<0.5) {\r
+ if(pdg==223) fhOmegaPriPt->Fill(pt);\r
+ }\r
+ }\r
+ }\r
+ else if(GetReader()->ReadAODMCParticles()){\r
+ //Get the list of MC particles\r
+ mcparticles0 = GetReader()->GetAODMCParticles(0);\r
+ if(!mcparticles0 && GetDebug() > 0) {\r
+ printf("AliAnaAcceptance::MakeAnalysisFillHistograms() - Standard MCParticles not available!\n");\r
+ }\r
+ if(GetReader()->GetSecondInputAODTree()){\r
+ mcparticles1 = GetReader()->GetAODMCParticles(1);\r
+ if(!mcparticles1 && GetDebug() > 0) {\r
+ printf("AliAnaAcceptance::MakeAnalysisFillHistograms() - Second input MCParticles not available!\n");\r
+ }\r
+ }\r
+ for(Int_t i=0;i<mcparticles0->GetEntries();i++){\r
+ aodprimary =(AliAODMCParticle*)mcparticles0->At(i);\r
+ pdg = aodprimary->GetPdgCode() ;\r
+ eta=aodprimary->Eta();\r
+ pt=aodprimary->Pt();\r
+ if(TMath::Abs(eta)<0.5) {\r
+ if(pdg==223) fhOmegaPriPt->Fill(pt);\r
+ }\r
+\r
+ }\r
+ }\r
+ }// is data and MC\r
+ \r
+\r
+ //process event from AOD brach \r
+ //extract pi0, eta and omega analysis\r
+ Int_t iRun=(GetReader()->GetInputEvent())->GetRunNumber() ;\r
+ if(IsBadRun(iRun)) return ; \r
+\r
+ //vertex z\r
+ Double_t vert[]={0,0,0} ;\r
+ GetReader()->GetVertex(vert);\r
+ Int_t curEventBin =0;\r
+ Int_t ivtxzbin = -1;\r
+ for(Int_t i=0;i<fNVtxZBin;i++){\r
+ // if(TMath::Abs(vert[2])<fVtxZCut[i] && TMath::Abs(vert[2])>=(fVtxZCut[i]-10)) ivtxzbin=i;\r
+ if(TMath::Abs(vert[2])<fVtxZCut[i]) ivtxzbin=i;\r
+ }\r
+ //centrality\r
+ Int_t icentbin=0;\r
+\r
+ //reaction plane\r
+ Int_t irpbin=0;\r
+\r
+ if(ivtxzbin==-1) return; \r
+ curEventBin = ivtxzbin*fNCentBin*fNRpBin + icentbin*fNRpBin + irpbin;\r
+\r
+ fInputAODGamma = GetAODBranch(fInputAODGammaName); //photon array\r
+ //fInputAODGamma = (TClonesArray *) GetReader()->GetOutputEvent()->FindListObject(fInputAODGammaName); //photon array\r
+ Int_t nphotons = fInputAODGamma->GetEntries();\r
+\r
+ fInputAODPi0 = (TClonesArray*)GetInputAODBranch(); //pi0 array\r
+ Int_t npi0s = fInputAODPi0 ->GetEntries();\r
+ \r
+ if(nphotons<3)return; //for pi0, eta and omega->pi0+gamma->3gamma reconstruction\r
+\r
+ //if((nphotons<3) || (npi0s<=0)) return;\r
+ //reconstruction of omega(782)->pi0+gamma->3gamma\r
+ //loop for pi0 and photon\r
+ if(GetDebug() > 0) printf("omega->pi0+gamma->3gamma invariant mass analysis ! \n");\r
+ for(Int_t i=0;i<npi0s;i++){\r
+ AliAODPWG4Particle * pi0 = (AliAODPWG4Particle*) (fInputAODPi0->At(i)) ; //pi0\r
+ TLorentzVector vpi0(pi0->Px(),pi0->Py(),pi0->Pz(),pi0->E());\r
+ Int_t lab1=pi0->GetCaloLabel(0); // photon1 from pi0 decay\r
+ Int_t lab2=pi0->GetCaloLabel(1); // photon2 from pi0 decay\r
+ //for omega->pi0+gamma, it needs at least three photons per event\r
+\r
+ //Get the two decay photons from pi0\r
+ AliAODPWG4Particle * photon1 =0;\r
+ AliAODPWG4Particle * photon2 =0;\r
+ for(Int_t d1=0;d1<nphotons;d1++){\r
+ for(Int_t d2=0;d2<nphotons;d2++){\r
+ AliAODPWG4Particle * dp1 = (AliAODPWG4Particle*) (fInputAODGamma->At(d1));\r
+ AliAODPWG4Particle * dp2 = (AliAODPWG4Particle*) (fInputAODGamma->At(d2));\r
+ Int_t dlab1=dp1->GetCaloLabel(0);\r
+ Int_t dlab2=dp2->GetCaloLabel(0);\r
+ if(dlab1==lab1 && dlab2==lab2){\r
+ photon1=dp1;\r
+ photon2=dp2;\r
+ }\r
+ else continue;\r
+ }\r
+ }\r
+\r
+ //caculate the asy and dist of the two photon from pi0 decay\r
+ TLorentzVector dph1(photon1->Px(),photon1->Py(),photon1->Pz(),photon1->E());\r
+ TLorentzVector dph2(photon2->Px(),photon2->Py(),photon2->Pz(),photon2->E());\r
+\r
+ Double_t pi0asy= TMath::Abs(dph1.E()-dph2.E())/(dph1.E()+dph2.E());\r
+// Double_t phi1=dph1.Phi();\r
+// Double_t phi2=dph2.Phi();\r
+// Double_t eta1=dph1.Eta();\r
+// Double_t eta2=dph2.Eta();\r
+// Double_t pi0dist=TMath::Sqrt((phi1-phi2)*(phi1-phi2)+(eta1-eta2)*(eta1-eta2));\r
+\r
+\r
+ if(pi0->GetPdg()==111 && nphotons>2 && npi0s\r
+ && TMath::Abs(vpi0.M()-fPi0Mass)<fPi0MassWindow) { //pi0 candidates\r
+\r
+ //avoid the double counting\r
+ Int_t * dc1= new Int_t[nphotons];\r
+ Int_t * dc2= new Int_t[nphotons];\r
+ Int_t index1=0;\r
+ Int_t index2=0;\r
+ for(Int_t k=0;k<i;k++){\r
+ AliAODPWG4Particle * p3=(AliAODPWG4Particle*)(fInputAODPi0->At(k));\r
+ Int_t lab4=p3->GetCaloLabel(0);\r
+ Int_t lab5=p3->GetCaloLabel(1);\r
+ if(lab1==lab4){ dc1[index1]=lab5; index1++; }\r
+ if(lab2==lab5){ dc2[index2]=lab4; index2++; }\r
+ }\r
+\r
+\r
+ //loop the pi0 with third gamma\r
+ for(Int_t j=0;j<nphotons;j++){\r
+ AliAODPWG4Particle *photon3 = (AliAODPWG4Particle*) (fInputAODGamma->At(j));\r
+ TLorentzVector dph3(photon3->Px(),photon3->Py(),photon3->Pz(),photon3->E());\r
+ Int_t lab3=photon3->GetCaloLabel(0);\r
+\r
+ for(Int_t l=0;l<index1;l++) if(lab3==dc1[l]) lab3=-1;\r
+ for(Int_t l=0;l<index2;l++) if(lab3==dc2[l]) lab3=-1;\r
+\r
+ if(lab3>0 && lab3!=lab1 && lab3!=lab2){\r
+ for(Int_t ipid=0;ipid<fNpid;ipid++){\r
+ for(Int_t idist=0;idist<fNBadChDistBin;idist++){\r
+ Int_t index=curEventBin*fNpid*fNBadChDistBin+ipid*fNBadChDistBin+idist;\r
+ if(photon1->IsPIDOK(ipid,AliCaloPID::kPhoton) &&\r
+ photon2->IsPIDOK(ipid,AliCaloPID::kPhoton) && \r
+ photon3->IsPIDOK(ipid,AliCaloPID::kPhoton) &&\r
+ photon1->DistToBad()>=fBadChDist[idist] &&\r
+ photon2->DistToBad()>=fBadChDist[idist] &&\r
+ photon3->DistToBad()>=fBadChDist[idist] ){\r
+ \r
+ Double_t pi0gammapt=(vpi0+dph3).Pt();\r
+ Double_t pi0gammamass=(vpi0+dph3).M();\r
+ //fill the histograms\r
+ fRealOmega[index]->Fill(pi0gammapt,pi0gammamass); \r
+ if(pi0asy<0.7) fRealOmega1[index]->Fill(pi0gammapt,pi0gammamass);\r
+ if(pi0asy<0.8) fRealOmega2[index]->Fill(pi0gammapt,pi0gammamass);\r
+//printf("real omega %d %2.2f \n", index, pi0gammamass);\r
+ }\r
+ }\r
+ }\r
+ }\r
+ } \r
+ delete []dc1;\r
+ delete []dc2;\r
+\r
+ //-------------------------\r
+ //background analysis\r
+ //three background\r
+ // --A (r1_event1+r2_event1)+r3_event2\r
+\r
+ Int_t nMixed = fEventsList[curEventBin]->GetSize();\r
+ for(Int_t im=0;im<nMixed;im++){\r
+ TClonesArray* ev2= (TClonesArray*) (fEventsList[curEventBin]->At(im));\r
+ for(Int_t mix1=0;mix1<ev2->GetEntries();mix1++){\r
+ AliAODPWG4Particle *mix1ph = (AliAODPWG4Particle*) (ev2->At(mix1)); \r
+ TLorentzVector vmixph(mix1ph->Px(),mix1ph->Py(),mix1ph->Pz(),mix1ph->E());\r
+ for(Int_t ipid=0;ipid<fNpid;ipid++){\r
+ for(Int_t idist=0;idist<fNBadChDistBin;idist++){\r
+ Int_t index=curEventBin*fNpid*fNBadChDistBin+ipid*fNBadChDistBin+idist;\r
+ if(photon1->IsPIDOK(ipid,AliCaloPID::kPhoton)&&\r
+ photon2->IsPIDOK(ipid,AliCaloPID::kPhoton)&&\r
+ mix1ph->IsPIDOK(ipid,AliCaloPID::kPhoton) &&\r
+ photon1->DistToBad()>=fBadChDist[idist] &&\r
+ photon2->DistToBad()>=fBadChDist[idist] &&\r
+ mix1ph->DistToBad()>=fBadChDist[idist] ){\r
+\r
+ Double_t pi0gammapt=(vpi0+vmixph).Pt();\r
+ Double_t pi0gammamass=(vpi0+vmixph).M();\r
+ //fill the histograms\r
+ fMixAOmega[index]->Fill(pi0gammapt,pi0gammamass);\r
+ if(pi0asy<0.7)fMixAOmega1[index]->Fill(pi0gammapt,pi0gammamass);\r
+ if(pi0asy<0.8)fMixAOmega2[index]->Fill(pi0gammapt,pi0gammamass);\r
+//printf("mix A %d %2.2f \n", index, pi0gammamass);\r
+ \r
+ }\r
+ }\r
+ }\r
+ }\r
+ }\r
+ }\r
+ }\r
+\r
+ //\r
+ // --B (r1_event1+r2_event2)+r3_event2\r
+ //\r
+ for(Int_t i=0;i<nphotons;i++){\r
+ AliAODPWG4Particle *ph1 = (AliAODPWG4Particle*) (fInputAODGamma->At(i)); \r
+ TLorentzVector vph1(ph1->Px(),ph1->Py(),ph1->Pz(),ph1->E());\r
+\r
+ Int_t nMixed = fEventsList[curEventBin]->GetSize();\r
+ for(Int_t ie=0;ie<nMixed;ie++){\r
+ TClonesArray* ev2= (TClonesArray*) (fEventsList[curEventBin]->At(ie));\r
+ for(Int_t mix1=0;mix1<ev2->GetEntries();mix1++){\r
+ AliAODPWG4Particle *ph2 = (AliAODPWG4Particle*) (ev2->At(mix1));\r
+ TLorentzVector vph2(ph2->Px(),ph2->Py(),ph2->Pz(),ph2->E());\r
+ Double_t pi0asy = TMath::Abs(vph1.E()-vph2.E())/(vph1.E()+vph2.E()); \r
+ Double_t pi0mass=(vph1+vph2).M();\r
+ \r
+ if(TMath::Abs(pi0mass-fPi0Mass)<fPi0MassWindow){//for pi0 selection\r
+ for(Int_t mix2=(mix1+1);mix2<ev2->GetEntries();mix2++){\r
+ AliAODPWG4Particle *ph3 = (AliAODPWG4Particle*) (ev2->At(mix2));\r
+ TLorentzVector vph3(ph3->Px(),ph3->Py(),ph3->Pz(),ph3->E());\r
+ \r
+ Double_t pi0gammapt=(vph1+vph2+vph3).Pt();\r
+ Double_t pi0gammamass=(vph1+vph2+vph3).M(); \r
+ for(Int_t ipid=0;ipid<fNpid;ipid++){\r
+ for(Int_t idist=0;idist<fNBadChDistBin;idist++){\r
+ Int_t index=curEventBin*fNpid*fNBadChDistBin+ipid*fNBadChDistBin+idist;\r
+ if(ph1->IsPIDOK(ipid,AliCaloPID::kPhoton) &&\r
+ ph2->IsPIDOK(ipid,AliCaloPID::kPhoton) &&\r
+ ph3->IsPIDOK(ipid,AliCaloPID::kPhoton) &&\r
+ ph1->DistToBad()>=fBadChDist[idist] &&\r
+ ph2->DistToBad()>=fBadChDist[idist] &&\r
+ ph3->DistToBad()>=fBadChDist[idist] ){\r
+ //fill histograms\r
+ fMixBOmega[index]->Fill(pi0gammapt,pi0gammamass);\r
+ if(pi0asy<0.7) fMixBOmega1[index]->Fill(pi0gammapt,pi0gammamass);\r
+ if(pi0asy<0.8) fMixBOmega2[index]->Fill(pi0gammapt,pi0gammamass);\r
+//printf("mix B %d %2.2f \n", index, pi0gammamass);\r
+ }\r
+ } \r
+ }\r
+ }\r
+ \r
+ //\r
+ // --C (r1_event1+r2_event2)+r3_event3\r
+ //\r
+ for(Int_t je=(ie+1);je<nMixed;je++){\r
+ TClonesArray* ev3= (TClonesArray*) (fEventsList[curEventBin]->At(je));\r
+ for(Int_t mix3=0;mix3<ev3->GetEntries();mix3++){\r
+ AliAODPWG4Particle *ph3 = (AliAODPWG4Particle*) (ev3->At(mix3));\r
+ TLorentzVector vph3(ph3->Px(),ph3->Py(),ph3->Pz(),ph3->E());\r
+ \r
+ Double_t pi0gammapt=(vph1+vph2+vph3).Pt();\r
+ Double_t pi0gammamass=(vph1+vph2+vph3).M();\r
+ \r
+ for(Int_t ipid=0;ipid<fNpid;ipid++){\r
+ for(Int_t idist=0;idist<fNBadChDistBin;idist++){\r
+ Int_t index=curEventBin*fNpid*fNBadChDistBin+ipid*fNBadChDistBin+idist;\r
+ if(ph1->IsPIDOK(ipid,AliCaloPID::kPhoton) &&\r
+ ph2->IsPIDOK(ipid,AliCaloPID::kPhoton) &&\r
+ ph3->IsPIDOK(ipid,AliCaloPID::kPhoton) &&\r
+ ph1->DistToBad()>=fBadChDist[idist] &&\r
+ ph2->DistToBad()>=fBadChDist[idist] &&\r
+ ph3->DistToBad()>=fBadChDist[idist] ){\r
+ //fill histograms\r
+ fMixCOmega[index]->Fill(pi0gammapt,pi0gammamass);\r
+ if(pi0asy<0.7) fMixCOmega1[index]->Fill(pi0gammapt,pi0gammamass);\r
+ if(pi0asy<0.8) fMixCOmega2[index]->Fill(pi0gammapt,pi0gammamass);\r
+//printf("mix C %d %2.2f \n", index, pi0gammamass);\r
+ }\r
+ }\r
+ }\r
+ }\r
+ }\r
+ } //for pi0 selecton \r
+ }\r
+ }\r
+ }\r
+\r
+ //event buffer \r
+ TClonesArray *currentEvent = new TClonesArray(*fInputAODGamma);\r
+ if(currentEvent->GetEntriesFast()>0){\r
+ fEventsList[curEventBin]->AddFirst(currentEvent) ;\r
+ currentEvent=0 ; \r
+ if(fEventsList[curEventBin]->GetSize()>=fNmaxMixEv) {\r
+ TClonesArray * tmp = (TClonesArray*) (fEventsList[curEventBin]->Last()) ;\r
+ fEventsList[curEventBin]->RemoveLast() ;\r
+ delete tmp ;\r
+ }\r
+ }\r
+ else{ \r
+ delete currentEvent ;\r
+ currentEvent=0 ;\r
+ }\r
+ \r
+}\r
+\r
+//______________________________________________________________________________\r
+void AliAnaOmegaToPi0Gamma::ReadHistograms(TList * outputList)\r
+{\r
+ //read the histograms \r
+ //for the finalization of the terminate analysis\r
+\r
+ Int_t index = outputList->IndexOf(outputList->FindObject(GetAddedHistogramsStringToName()+"RPi0Gamma_Vz0C0Rp0Pid0Dist0"));\r
+\r
+ Int_t ndim=fNVtxZBin*fNCentBin*fNRpBin*fNBadChDistBin*fNpid;\r
+\r
+ if(!fRealOmega) fRealOmega =new TH2F*[ndim];\r
+ if(!fMixAOmega) fMixAOmega =new TH2F*[ndim];\r
+ if(!fMixBOmega) fMixBOmega =new TH2F*[ndim];\r
+ if(!fMixCOmega) fMixCOmega =new TH2F*[ndim];\r
+\r
+ if(!fRealOmega1) fRealOmega1 =new TH2F*[ndim];\r
+ if(!fMixAOmega1) fMixAOmega1 =new TH2F*[ndim];\r
+ if(!fMixBOmega1) fMixBOmega1 =new TH2F*[ndim];\r
+ if(!fMixCOmega1) fMixCOmega1 =new TH2F*[ndim];\r
+\r
+ if(!fRealOmega2) fRealOmega2 =new TH2F*[ndim];\r
+ if(!fMixAOmega2) fMixAOmega2 =new TH2F*[ndim];\r
+ if(!fMixBOmega2) fMixBOmega2 =new TH2F*[ndim];\r
+ if(!fMixCOmega2) fMixCOmega2 =new TH2F*[ndim];\r
+\r
+ for(Int_t i=0;i<fNVtxZBin;i++){\r
+ for(Int_t j=0;j<fNCentBin;j++){\r
+ for(Int_t k=0;k<fNRpBin;k++){ //at event level\r
+ Int_t idim=i*fNCentBin*fNRpBin+j*fNRpBin+k;\r
+ for(Int_t ipid=0;ipid<fNpid;ipid++){ \r
+ for(Int_t idist=0;idist<fNBadChDistBin;idist++){ //at particle\r
+ Int_t ind=idim*fNpid*fNBadChDistBin+ipid*fNBadChDistBin+idist;\r
+ fRealOmega[ind]= (TH2F*) outputList->At(index++);\r
+ fMixAOmega[ind]= (TH2F*) outputList->At(index++);\r
+ fMixBOmega[ind]= (TH2F*) outputList->At(index++);\r
+ fMixCOmega[ind]= (TH2F*) outputList->At(index++);\r
+\r
+ fRealOmega1[ind]= (TH2F*) outputList->At(index++);\r
+ fMixAOmega1[ind]= (TH2F*) outputList->At(index++);\r
+ fMixBOmega1[ind]= (TH2F*) outputList->At(index++);\r
+ fMixCOmega1[ind]= (TH2F*) outputList->At(index++);\r
+\r
+ fRealOmega2[ind]= (TH2F*) outputList->At(index++);\r
+ fMixAOmega2[ind]= (TH2F*) outputList->At(index++);\r
+ fMixBOmega2[ind]= (TH2F*) outputList->At(index++);\r
+ fMixCOmega2[ind]= (TH2F*) outputList->At(index++);\r
+ \r
+ \r
+ }\r
+ }\r
+ }\r
+ }\r
+ }\r
+ \r
+ if(IsDataMC()){\r
+ fhOmegaPriPt = (TH1F*) outputList->At(index++);\r
+ }\r
+\r
+}\r
+\r
+//______________________________________________________________________________\r
+void AliAnaOmegaToPi0Gamma::Terminate(TList * outputList) \r
+{\r
+// //Do some calculations and plots from the final histograms.\r
+ if(GetDebug() >= 0) printf("AliAnaOmegaToPi0Gamma::Terminate() \n");\r
+ ReadHistograms(outputList);\r
+ char cvs1[128]; \r
+ sprintf(cvs1, "Neutral_%s_IVM",fInputAODGammaName.Data());\r
+\r
+ TCanvas * cvsIVM = new TCanvas(cvs1, cvs1, 400, 10, 600, 700) ;\r
+ cvsIVM->Divide(2, 2);\r
+\r
+ cvsIVM->cd(1);\r
+ TH2F * h2Real= new TH2F(*fRealOmega[0]);\r
+ h2Real->GetXaxis()->SetRangeUser(4,6);\r
+ TH1F * hRealOmega = (TH1F*) h2Real->ProjectionY();\r
+ hRealOmega->SetTitle("RealPi0Gamma 4<pt<6");\r
+ hRealOmega->SetLineColor(2);\r
+ hRealOmega->Draw();\r
+\r
+ cvsIVM->cd(2);\r
+ TH2F *h2MixA= new TH2F(*fMixAOmega[0]);\r
+ h2MixA->GetXaxis()->SetRangeUser(4,6);\r
+ TH1F * hMixAOmega = (TH1F*) h2MixA->ProjectionY();\r
+ hMixAOmega->SetTitle("MixA 4<pt<6");\r
+ hMixAOmega->SetLineColor(2);\r
+ hMixAOmega->Draw();\r
+\r
+ cvsIVM->cd(3);\r
+ TH2F * h2MixB=new TH2F(*fMixBOmega[0]);\r
+ h2MixB->GetXaxis()->SetRangeUser(4,6);\r
+ TH1F * hMixBOmega = (TH1F*) h2MixB->ProjectionY();\r
+ hMixBOmega->SetTitle("MixB 4<pt<6");\r
+ hMixBOmega->SetLineColor(2);\r
+ hMixBOmega->Draw();\r
+\r
+ cvsIVM->cd(4);\r
+ TH2F *h2MixC= new TH2F(*fMixCOmega[0]);\r
+ h2MixC->GetXaxis()->SetRangeUser(4,6);\r
+ TH1F * hMixCOmega = (TH1F*) h2MixC->ProjectionY();\r
+ hMixCOmega->SetTitle("MixC 4<pt<6");\r
+ hMixCOmega->SetLineColor(2);\r
+ hMixCOmega->Draw();\r
+\r
+ char eps[128 ];\r
+ sprintf(eps,"CVS_%s_IVM.eps",fInputAODGammaName.Data());\r
+ cvsIVM->Print(eps);\r
+ cvsIVM->Modified();\r
+ \r
+}\r
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff