/************************************************************************** * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * * * * Author: The ALICE Off-line Project. * * Contributors are mentioned in the code where appropriate. * * * * Permission to use, copy, modify and distribute this software and its * * documentation strictly for non-commercial purposes is hereby granted * * without fee, provided that the above copyright notice appears in all * * copies and that both the copyright notice and this permission notice * * appear in the supporting documentation. The authors make no claims * * about the suitability of this software for any purpose. It is * * provided "as is" without express or implied warranty. * **************************************************************************/ /* $Id: $ */ //_________________________________________________________________________ // Class to collect two-photon invariant mass distributions for // extractin raw pi0 yield. // //-- Author: Dmitri Peressounko (RRC "KI") //-- Adapted to PartCorr frame by Lamia Benhabib (SUBATECH) //-- and Gustavo Conesa (INFN-Frascati) //_________________________________________________________________________ // --- ROOT system --- #include "TH3.h" //#include "Riostream.h" #include "TCanvas.h" #include "TPad.h" #include "TROOT.h" #include "TClonesArray.h" #include "TObjString.h" //---- AliRoot system ---- #include "AliAnaPi0.h" #include "AliCaloTrackReader.h" #include "AliCaloPID.h" #include "AliStack.h" #include "AliFidutialCut.h" #include "TParticle.h" #include "AliAODCaloCluster.h" #include "AliVEvent.h" #include "AliLog.h" #ifdef __PHOSGEO__ #include "AliPHOSGeoUtils.h" #endif ClassImp(AliAnaPi0) //________________________________________________________________________________________________________________________________________________ AliAnaPi0::AliAnaPi0() : AliAnaPartCorrBaseClass(), fNCentrBin(0),fNZvertBin(0),fNrpBin(0), fNPID(0),fNmaxMixEv(0), fZvtxCut(0.),fCalorimeter(""), fEventsList(0x0), fhEtalon(0x0), fhRe1(0x0),fhMi1(0x0),fhRe2(0x0),fhMi2(0x0),fhRe3(0x0),fhMi3(0x0),fhEvents(0x0), fhPrimPt(0x0), fhPrimAccPt(0x0), fhPrimY(0x0), fhPrimAccY(0x0), fhPrimPhi(0x0), fhPrimAccPhi(0x0) { //Default Ctor InitParameters(); } //________________________________________________________________________________________________________________________________________________ AliAnaPi0::AliAnaPi0(const AliAnaPi0 & ex) : AliAnaPartCorrBaseClass(ex), fNCentrBin(ex.fNCentrBin),fNZvertBin(ex.fNZvertBin),fNrpBin(ex.fNrpBin), fNPID(ex.fNPID),fNmaxMixEv(ex.fNmaxMixEv),fZvtxCut(ex.fZvtxCut), fCalorimeter(ex.fCalorimeter), fEventsList(ex.fEventsList), fhEtalon(ex.fhEtalon), fhRe1(ex.fhRe1),fhMi1(ex.fhMi1),fhRe2(ex.fhRe2),fhMi2(ex.fhMi2),fhRe3(ex.fhRe3),fhMi3(ex.fhMi3),fhEvents(ex.fhEvents), fhPrimPt(ex.fhPrimPt), fhPrimAccPt(ex.fhPrimAccPt), fhPrimY(ex.fhPrimY), fhPrimAccY(ex.fhPrimAccY), fhPrimPhi(ex.fhPrimPhi), fhPrimAccPhi(ex.fhPrimAccPhi) { // cpy ctor //Do not need it } //________________________________________________________________________________________________________________________________________________ AliAnaPi0 & AliAnaPi0::operator = (const AliAnaPi0 & ex) { // assignment operator if(this == &ex)return *this; ((AliAnaPartCorrBaseClass *)this)->operator=(ex); fNCentrBin = ex.fNCentrBin ; fNZvertBin = ex.fNZvertBin ; fNrpBin = ex.fNrpBin ; fNPID = ex.fNPID ; fNmaxMixEv = ex.fNmaxMixEv ; fZvtxCut = ex.fZvtxCut ; fCalorimeter = ex.fCalorimeter ; fEventsList = ex.fEventsList ; fhEtalon = ex.fhEtalon ; fhRe1 = ex.fhRe1 ; fhMi1 = ex.fhMi1 ; fhRe2 = ex.fhRe2 ; fhMi2 = ex.fhMi2 ; fhRe3 = ex.fhRe3 ; fhMi3 = ex.fhMi3 ; fhEvents = ex.fhEvents ; fhPrimPt = ex.fhPrimPt ; fhPrimAccPt = ex.fhPrimAccPt ; fhPrimY = ex.fhPrimY ; fhPrimAccY = ex.fhPrimAccY ; fhPrimPhi = ex.fhPrimPhi ; fhPrimAccPhi = ex.fhPrimAccPhi ; return *this; } //________________________________________________________________________________________________________________________________________________ AliAnaPi0::~AliAnaPi0() { // Remove event containers if(fEventsList){ for(Int_t ic=0; icDelete() ; delete fEventsList[ic*fNZvertBin*fNrpBin+iz*fNrpBin+irp] ; } } } delete[] fEventsList; fEventsList=0 ; } #ifdef __PHOSGEO__ if(fPHOSGeo) delete fPHOSGeo ; #endif } //________________________________________________________________________________________________________________________________________________ void AliAnaPi0::InitParameters() { //Init parameters when first called the analysis //Set default parameters SetInputAODName("photons"); fNCentrBin = 1; fNZvertBin = 1; fNrpBin = 1; fNPID = 9; fNmaxMixEv = 10; fZvtxCut = 40; fCalorimeter = "PHOS"; } //________________________________________________________________________________________________________________________________________________ void AliAnaPi0::Init() { //Init some data members needed in analysis //Histograms binning and range if(!fhEtalon){ // p_T alpha d m_gg fhEtalon = new TH3D("hEtalon","Histo with binning parameters",50,0.,25.,10,0.,1.,200,0.,1.) ; fhEtalon->SetXTitle("P_{T} (GeV)") ; fhEtalon->SetYTitle("#alpha") ; fhEtalon->SetZTitle("m_{#gamma#gamma} (GeV)") ; } } //________________________________________________________________________________________________________________________________________________ TList * AliAnaPi0::GetCreateOutputObjects() { // Create histograms to be saved in output file and // store them in fOutputContainer //create event containers fEventsList = new TList*[fNCentrBin*fNZvertBin*fNrpBin] ; for(Int_t ic=0; icSetName(GetName()); fhRe1=new TH3D*[fNCentrBin*fNPID] ; fhRe2=new TH3D*[fNCentrBin*fNPID] ; fhRe3=new TH3D*[fNCentrBin*fNPID] ; fhMi1=new TH3D*[fNCentrBin*fNPID] ; fhMi2=new TH3D*[fNCentrBin*fNPID] ; fhMi3=new TH3D*[fNCentrBin*fNPID] ; char key[255] ; char title[255] ; for(Int_t ic=0; icClone(key); fhRe1[ic*fNPID+ipid]=(TH3D*)fhEtalon->Clone(key) ; fhRe1[ic*fNPID+ipid]->SetName(key) ; fhRe1[ic*fNPID+ipid]->SetTitle(title) ; outputContainer->Add(fhRe1[ic*fNPID+ipid]) ; sprintf(key,"hMi_cen%d_pid%d_dist1",ic,ipid) ; sprintf(title,"Mixed m_{#gamma#gamma} distr. for centrality=%d and PID=%d",ic,ipid) ; fhMi1[ic*fNPID+ipid]=(TH3D*)fhEtalon->Clone(key) ; fhMi1[ic*fNPID+ipid]->SetName(key) ; fhMi1[ic*fNPID+ipid]->SetTitle(title) ; outputContainer->Add(fhMi1[ic*fNPID+ipid]) ; //Distance to bad module 2 sprintf(key,"hRe_cen%d_pid%d_dist2",ic,ipid) ; sprintf(title,"Real m_{#gamma#gamma} distr. for centrality=%d and PID=%d",ic,ipid) ; fhRe2[ic*fNPID+ipid]=(TH3D*)fhEtalon->Clone(key) ; fhRe2[ic*fNPID+ipid]->SetName(key) ; fhRe2[ic*fNPID+ipid]->SetTitle(title) ; outputContainer->Add(fhRe2[ic*fNPID+ipid]) ; sprintf(key,"hMi_cen%d_pid%d_dist2",ic,ipid) ; sprintf(title,"Mixed m_{#gamma#gamma} distr. for centrality=%d and PID=%d",ic,ipid) ; fhMi2[ic*fNPID+ipid]=(TH3D*)fhEtalon->Clone(key) ; fhMi2[ic*fNPID+ipid]->SetName(key) ; fhMi2[ic*fNPID+ipid]->SetTitle(title) ; outputContainer->Add(fhMi2[ic*fNPID+ipid]) ; //Distance to bad module 3 sprintf(key,"hRe_cen%d_pid%d_dist3",ic,ipid) ; sprintf(title,"Real m_{#gamma#gamma} distr. for centrality=%d and PID=%d",ic,ipid) ; fhRe3[ic*fNPID+ipid]=(TH3D*)fhEtalon->Clone(key) ; fhRe3[ic*fNPID+ipid]->SetName(key) ; fhRe3[ic*fNPID+ipid]->SetTitle(title) ; outputContainer->Add(fhRe3[ic*fNPID+ipid]) ; sprintf(key,"hMi_cen%d_pid%d_dist3",ic,ipid) ; sprintf(title,"Mixed m_{#gamma#gamma} distr. for centrality=%d and PID=%d",ic,ipid) ; fhMi3[ic*fNPID+ipid]=(TH3D*)fhEtalon->Clone(key) ; fhMi3[ic*fNPID+ipid]->SetName(key) ; fhMi3[ic*fNPID+ipid]->SetTitle(title) ; outputContainer->Add(fhMi3[ic*fNPID+ipid]) ; } } fhEvents=new TH3D("hEvents","Number of events",fNCentrBin,0.,1.*fNCentrBin, fNZvertBin,0.,1.*fNZvertBin,fNrpBin,0.,1.*fNrpBin) ; outputContainer->Add(fhEvents) ; //Histograms filled only if MC data is requested if(IsDataMC() || (GetReader()->GetDataType() == AliCaloTrackReader::kMC) ){ if(fhEtalon->GetXaxis()->GetXbins() && fhEtalon->GetXaxis()->GetXbins()->GetSize()){ //Variable bin size fhPrimPt = new TH1D("hPrimPt","Primary pi0 pt",fhEtalon->GetXaxis()->GetNbins(),fhEtalon->GetXaxis()->GetXbins()->GetArray()) ; fhPrimAccPt = new TH1D("hPrimAccPt","Primary pi0 pt with both photons in acceptance",fhEtalon->GetXaxis()->GetNbins(), fhEtalon->GetXaxis()->GetXbins()->GetArray()) ; } else{ fhPrimPt = new TH1D("hPrimPt","Primary pi0 pt",fhEtalon->GetXaxis()->GetNbins(),fhEtalon->GetXaxis()->GetXmin(),fhEtalon->GetXaxis()->GetXmax()) ; fhPrimAccPt = new TH1D("hPrimAccPt","Primary pi0 pt with both photons in acceptance", fhEtalon->GetXaxis()->GetNbins(),fhEtalon->GetXaxis()->GetXmin(),fhEtalon->GetXaxis()->GetXmax()) ; } outputContainer->Add(fhPrimPt) ; outputContainer->Add(fhPrimAccPt) ; fhPrimY = new TH1D("hPrimaryRapidity","Rapidity of primary pi0",100,-5.,5.) ; outputContainer->Add(fhPrimY) ; fhPrimAccY = new TH1D("hPrimAccRapidity","Rapidity of primary pi0",100,-5.,5.) ; outputContainer->Add(fhPrimAccY) ; fhPrimPhi = new TH1D("hPrimaryPhi","Azimithal of primary pi0",180,0.,360.) ; outputContainer->Add(fhPrimPhi) ; fhPrimAccPhi = new TH1D("hPrimAccPhi","Azimithal of primary pi0 with accepted daughters",180,-0.,360.) ; outputContainer->Add(fhPrimAccPhi) ; } //Save parameters used for analysis TString parList ; //this will be list of parameters used for this analysis. char onePar[255] ; sprintf(onePar,"--- AliAnaPi0 ---\n") ; parList+=onePar ; sprintf(onePar,"Number of bins in Centrality: %d \n",fNCentrBin) ; parList+=onePar ; sprintf(onePar,"Number of bins in Z vert. pos: %d \n",fNZvertBin) ; parList+=onePar ; sprintf(onePar,"Number of bins in Reac. Plain: %d \n",fNrpBin) ; parList+=onePar ; sprintf(onePar,"Depth of event buffer: %d \n",fNmaxMixEv) ; parList+=onePar ; sprintf(onePar,"Number of different PID used: %d \n",fNPID) ; parList+=onePar ; sprintf(onePar,"Cuts: \n") ; parList+=onePar ; sprintf(onePar,"Z vertex position: -%f < z < %f \n",fZvtxCut,fZvtxCut) ; parList+=onePar ; sprintf(onePar,"Calorimeter: %s \n",fCalorimeter.Data()) ; parList+=onePar ; TObjString *oString= new TObjString(parList) ; outputContainer->Add(oString); return outputContainer; } //_________________________________________________________________________________________________________________________________________________ void AliAnaPi0::Print(const Option_t * /*opt*/) const { //Print some relevant parameters set for the analysis AliAnaPartCorrBaseClass::Print(" "); printf("Class AliAnaPi0 for gamma-gamma inv.mass construction \n") ; printf("Number of bins in Centrality: %d \n",fNCentrBin) ; printf("Number of bins in Z vert. pos: %d \n",fNZvertBin) ; printf("Number of bins in Reac. Plain: %d \n",fNrpBin) ; printf("Depth of event buffer: %d \n",fNmaxMixEv) ; printf("Number of different PID used: %d \n",fNPID) ; printf("Cuts: \n") ; printf("Z vertex position: -%2.3f < z < %2.3f \n",fZvtxCut,fZvtxCut) ; printf("------------------------------------------------------\n") ; } //____________________________________________________________________________________________________________________________________________________ void AliAnaPi0::MakeAnalysisFillHistograms() { //Process one event and extract photons from AOD branch // filled with AliAnaPhoton and fill histos with invariant mass //Apply some cuts on event: vertex position and centrality range Int_t iRun=(GetReader()->GetInputEvent())->GetRunNumber() ; if(IsBadRun(iRun)) return ; Double_t vert[]={0,0,0} ; //vertex ; GetReader()->GetVertex(vert); if(vert[2]<-fZvtxCut || vert[2]> fZvtxCut) return ; //Event can not be used (vertex, centrality,... cuts not fulfilled) //Get Centrality and calculate centrality bin //Does not exist in ESD yet??????? Int_t curCentrBin=0 ; //Get Reaction Plain position and calculate RP bin //does not exist in ESD yet???? Int_t curRPBin=0 ; Int_t curZvertBin=(Int_t)(0.5*fNZvertBin*(vert[2]+fZvtxCut)/fZvtxCut) ; fhEvents->Fill(curCentrBin+0.5,curZvertBin+0.5,curRPBin+0.5) ; Int_t nPhot = GetInputAODBranch()->GetEntriesFast() ; if(GetDebug() > 1) printf("AliAnaPi0::FillHistos: photon entries %d\n", nPhot); for(Int_t i1=0; i1At(i1)) ; TLorentzVector photon1(p1->Px(),p1->Py(),p1->Pz(),p1->E()); for(Int_t i2=i1+1; i2At(i2)) ; TLorentzVector photon2(p2->Px(),p2->Py(),p2->Pz(),p2->E()); Double_t m = (photon1 + photon2).M() ; Double_t pt = (photon1 + photon2).Pt(); Double_t a = TMath::Abs(p1->E()-p2->E())/(p1->E()+p2->E()) ; if(GetDebug() > 2) printf("AliAnaPi0::FillHistos: Current Event: pT: photon1 %2.2f, photon2 %2.2f; Pair: pT %2.2f, mass %2.3f, a %f2.3\n", p1->Pt(), p2->Pt(), pt,m,a); for(Int_t ipid=0; ipidIsPIDOK(ipid,AliCaloPID::kPhoton)) && (p2->IsPIDOK(ipid,AliCaloPID::kPhoton))){ fhRe1[curCentrBin*fNPID+ipid]->Fill(pt,a,m) ; if(p1->DistToBad()>0 && p2->DistToBad()>0){ fhRe2[curCentrBin*fNPID+ipid]->Fill(pt,a,m) ; if(p1->DistToBad()>1 && p2->DistToBad()>1){ fhRe3[curCentrBin*fNPID+ipid]->Fill(pt,a,m) ; } } } } } } //Fill mixed TList * evMixList=fEventsList[curCentrBin*fNZvertBin*fNrpBin+curZvertBin*fNrpBin+curRPBin] ; Int_t nMixed = evMixList->GetSize() ; for(Int_t ii=0; iiAt(ii)); Int_t nPhot2=ev2->GetEntriesFast() ; Double_t m = -999; if(GetDebug() > 1) printf("AliAnaPi0::FillHistos: Mixed event %d photon entries %d\n", ii, nPhot); for(Int_t i1=0; i1At(i1)) ; TLorentzVector photon1(p1->Px(),p1->Py(),p1->Pz(),p1->E()); for(Int_t i2=0; i2At(i2)) ; TLorentzVector photon2(p2->Px(),p2->Py(),p2->Pz(),p2->E()); m = (photon1+photon2).M() ; Double_t pt = (photon1 + photon2).Pt(); Double_t a = TMath::Abs(p1->E()-p2->E())/(p1->E()+p2->E()) ; if(GetDebug() > 2) printf("AliAnaPi0::FillHistos: Mixed Event: pT: photon1 %2.2f, photon2 %2.2f; Pair: pT %2.2f, mass %2.3f, a %f2.3\n", p1->Pt(), p2->Pt(), pt,m,a); for(Int_t ipid=0; ipidIsPIDOK(ipid,AliCaloPID::kPhoton)) && (p2->IsPIDOK(ipid,AliCaloPID::kPhoton))){ fhMi1[curCentrBin*fNPID+ipid]->Fill(pt,a,m) ; if(p1->DistToBad()>0 && p2->DistToBad()>0){ fhMi2[curCentrBin*fNPID+ipid]->Fill(pt,a,m) ; if(p1->DistToBad()>1 && p2->DistToBad()>1){ fhMi3[curCentrBin*fNPID+ipid]->Fill(pt,a,m) ; } } } } } } } TClonesArray *currentEvent = new TClonesArray(*GetInputAODBranch()); //Add current event to buffer and Remove redandant events if(currentEvent->GetEntriesFast()>0){ evMixList->AddFirst(currentEvent) ; currentEvent=0 ; //Now list of particles belongs to buffer and it will be deleted with buffer if(evMixList->GetSize()>=fNmaxMixEv) { TClonesArray * tmp = (TClonesArray*) (evMixList->Last()) ; evMixList->RemoveLast() ; delete tmp ; } } else{ //empty event delete currentEvent ; currentEvent=0 ; } //Acceptance AliStack * stack = GetMCStack(); if(stack && (IsDataMC() || (GetReader()->GetDataType() == AliCaloTrackReader::kMC)) ){ for(Int_t i=0 ; iGetNprimary(); i++){ TParticle * prim = stack->Particle(i) ; if(prim->GetPdgCode() == 111){ Double_t pi0Pt = prim->Pt() ; //printf("pi0, pt %2.2f\n",pi0Pt); if(prim->Energy() == TMath::Abs(prim->Pz())) continue ; //Protection against floating point exception Double_t pi0Y = 0.5*TMath::Log((prim->Energy()-prim->Pz())/(prim->Energy()+prim->Pz())) ; Double_t phi = TMath::RadToDeg()*prim->Phi() ; if(TMath::Abs(pi0Y) < 0.5){ fhPrimPt->Fill(pi0Pt) ; } fhPrimY ->Fill(pi0Y) ; fhPrimPhi->Fill(phi) ; //Check if both photons hit Calorimeter Int_t iphot1=prim->GetFirstDaughter() ; Int_t iphot2=prim->GetLastDaughter() ; if(iphot1>-1 && iphot1GetNtrack() && iphot2>-1 && iphot2GetNtrack()){ TParticle * phot1 = stack->Particle(iphot1) ; TParticle * phot2 = stack->Particle(iphot2) ; if(phot1 && phot2 && phot1->GetPdgCode()==22 && phot2->GetPdgCode()==22){ //printf("2 photons: photon 1: pt %2.2f, phi %3.2f, eta %1.2f; photon 2: pt %2.2f, phi %3.2f, eta %1.2f\n", // phot1->Pt(), phot1->Phi()*180./3.1415, phot1->Eta(), phot2->Pt(), phot2->Phi()*180./3.1415, phot2->Eta()); Bool_t inacceptance = kFALSE; #ifdef __PHOSGEO__ Int_t mod ; Double_t x,z ; if(fCalorimeter == "PHOS" && fPHOSGeo->ImpactOnEmc(phot1,mod,z,x) && fPHOSGeo->ImpactOnEmc(phot1,mod,z,x)) inacceptance = kTRUE; //printf("In REAL PHOS acceptance? %d\n",inacceptance); #else TLorentzVector lv1, lv2; phot1->Momentum(lv1); phot2->Momentum(lv2); if(GetFidutialCut()->IsInFidutialCut(lv1,fCalorimeter) && GetFidutialCut()->IsInFidutialCut(lv2,fCalorimeter)) inacceptance = kTRUE ; //printf("In %s fidutial cut acceptance? %d\n",fCalorimeter.Data(),inacceptance); #endif if(inacceptance){ fhPrimAccPt->Fill(pi0Pt) ; fhPrimAccPhi->Fill(phi) ; fhPrimAccY->Fill(pi0Y) ; }//Accepted }// 2 photons }//Check daughters exist }// Primary pi0 }//loop on primaries }//stack exists and data is MC } //____________________________________________________________________________________________________________________________________________________ void AliAnaPi0::Terminate() { //Do some calculations and plots from the final histograms. printf(" *** %s Terminate:\n", GetName()) ; if (!fhRe1) { Error("Terminate", "Remote output histograms not imported in AliAnaPi0 object"); return; } printf(" Mgg Real : %5.3f , RMS : %5.3f \n", fhRe1[0]->GetMean(), fhRe1[0]->GetRMS() ) ; TCanvas * cIM = new TCanvas("cIM", "", 400, 10, 600, 700) ; cIM->Divide(2, 2); cIM->cd(1) ; //gPad->SetLogy(); TH1D * hIMAllPt = (TH1D*) fhRe1[0]->ProjectionZ(); hIMAllPt->SetLineColor(2); hIMAllPt->SetTitle("No cut on p_{T, #gamma#gamma} "); hIMAllPt->Draw(); cIM->cd(2) ; TH3F * hRe1Pt5 = (TH3F*)fhRe1[0]->Clone("IMPt5"); hRe1Pt5->GetXaxis()->SetRangeUser(0,5); TH1D * hIMPt5 = (TH1D*) hRe1Pt5->Project3D("z"); hIMPt5->SetLineColor(2); hIMPt5->SetTitle("0 < p_{T, #gamma#gamma} < 5 GeV/c"); hIMPt5->Draw(); cIM->cd(3) ; TH3F * hRe1Pt10 = (TH3F*)fhRe1[0]->Clone("IMPt10"); hRe1Pt10->GetXaxis()->SetRangeUser(5,10); TH1D * hIMPt10 = (TH1D*) hRe1Pt10->Project3D("z"); hIMPt10->SetLineColor(2); hIMPt10->SetTitle("5 < p_{T, #gamma#gamma} < 10 GeV/c"); hIMPt10->Draw(); cIM->cd(4) ; TH3F * hRe1Pt20 = (TH3F*)fhRe1[0]->Clone("IMPt20"); hRe1Pt20->GetXaxis()->SetRangeUser(10,20); TH1D * hIMPt20 = (TH1D*) hRe1Pt20->Project3D("z"); hIMPt20->SetLineColor(2); hIMPt20->SetTitle("10 < p_{T, #gamma#gamma} < 20 GeV/c"); hIMPt20->Draw(); cIM->Print("Mgg.eps"); TCanvas * cPt = new TCanvas("cPt", "", 400, 10, 600, 700) ; cPt->Divide(2, 2); cPt->cd(1) ; //gPad->SetLogy(); TH1D * hPt = (TH1D*) fhRe1[0]->Project3D("x"); hPt->SetLineColor(2); hPt->SetTitle("No cut on M_{#gamma#gamma} "); hPt->Draw(); cPt->cd(2) ; TH3F * hRe1IM1 = (TH3F*)fhRe1[0]->Clone("PtIM1"); hRe1IM1->GetZaxis()->SetRangeUser(0.05,0.21); TH1D * hPtIM1 = (TH1D*) hRe1IM1->Project3D("x"); hPtIM1->SetLineColor(2); hPtIM1->SetTitle("0.05 < M_{#gamma#gamma} < 0.21 GeV/c^{2}"); hPtIM1->Draw(); cPt->cd(3) ; TH3F * hRe1IM2 = (TH3F*)fhRe1[0]->Clone("PtIM2"); hRe1IM2->GetZaxis()->SetRangeUser(0.09,0.17); TH1D * hPtIM2 = (TH1D*) hRe1IM2->Project3D("x"); hPtIM2->SetLineColor(2); hPtIM2->SetTitle("0.09 < M_{#gamma#gamma} < 0.17 GeV/c^{2}"); hPtIM2->Draw(); cPt->cd(4) ; TH3F * hRe1IM3 = (TH3F*)fhRe1[0]->Clone("PtIM3"); hRe1IM3->GetZaxis()->SetRangeUser(0.11,0.15); TH1D * hPtIM3 = (TH1D*) hRe1IM1->Project3D("x"); hPtIM3->SetLineColor(2); hPtIM3->SetTitle("0.11 < M_{#gamma#gamma} < 0.15 GeV/c^{2}"); hPtIM3->Draw(); cPt->Print("Pt.eps"); char line[1024] ; sprintf(line, ".!tar -zcf %s.tar.gz *.eps", GetName()) ; gROOT->ProcessLine(line); sprintf(line, ".!rm -fR *.eps"); gROOT->ProcessLine(line); printf("!! All the eps files are in %s.tar.gz !!!\n", GetName()); }