// // Macro for analysis of 2d InvMass v Pt distribution for the generation of: // - Pt distribution of quarkonia, // - Mass and sigma of the quarkonia resonance as a function of pT // - and invariant mass distributions ( all, background and subtracted) // as a function of pT // Usual utilisation: // QuarkoniaPtDistri("ProdMuonCocktailPer1/MUONmassPlot.root",4,2.9,3.3) // // MUONmassPlotFile root file form MUONmassPlot_ESD.C // NRes=1 bining of the pT distribution // ==1, equal to MUONmassPlotFile 2D histo, // ==2, bin twice larger // InvMass1, InvMass2 Range of the quarkonia resonance // // Gines MARTINEZ, Subatech, May 04 // void MUONQuarkoniaPtDistri(char * MUONmassPlotFile="MUONmassPlot.root", Int_t NRes=4, Float_t InvMass1=2.9, Float_t InvMass2=3.3) { TFile MUONmassPlot(MUONmassPlotFile); TH2F * hInvMassAll_vs_Pt = (TH2F*) MUONmassPlot.Get("hInvMassAll_vs_Pt"); TH2F * hInvMassBgk_vs_Pt = (TH2F*) MUONmassPlot.Get("hInvMassBgk_vs_Pt"); hInvMassAll_vs_Pt->Sumw2(); hInvMassBgk_vs_Pt->Sumw2(); gROOT->cd(); Int_t Nbins = hInvMassAll_vs_Pt->GetYaxis()->GetNbins(); Float_t ptMin = hInvMassAll_vs_Pt->GetYaxis()->GetXmin(); Float_t ptMax = hInvMassAll_vs_Pt->GetYaxis()->GetXmax(); const Int_t NumberOfPoints = Nbins/NRes; Float_t *pT = new Float_t[NumberOfPoints]; Float_t *e_pT = new Float_t[NumberOfPoints]; Float_t *dNdpT = new Float_t[NumberOfPoints]; Float_t *e_dNdpT = new Float_t[NumberOfPoints]; Float_t *pT1 = new Float_t[NumberOfPoints]; Float_t *e_pT1 = new Float_t[NumberOfPoints]; Float_t *Cent = new Float_t[NumberOfPoints]; Float_t *e_Cent = new Float_t[NumberOfPoints]; Float_t *pT2 = new Float_t[NumberOfPoints]; Float_t *e_pT2 = new Float_t[NumberOfPoints]; Float_t *Sigma = new Float_t[NumberOfPoints]; Float_t *e_Sigma = new Float_t[NumberOfPoints]; TH1D * hInvMassAll[NumberOfPoints]; TH1D * hInvMassBgk[NumberOfPoints]; TH1D * hInvMassSub[NumberOfPoints]; char histoname[60]; Int_t ibin, ibin1,ibin2, ipoint; Int_t integral1, integral2; for(ipoint=0; ipointGetYaxis()->GetBinCenter(ibin); } pT[ipoint]/=NRes; pT1[ipoint]=pT[ipoint]; pT2[ipoint]=pT[ipoint]; e_pT[ipoint] = (hInvMassAll_vs_Pt->GetYaxis()->GetBinCenter(ibin2)-hInvMassAll_vs_Pt->GetYaxis()->GetBinCenter(ibin1))/2.; e_pT1[ipoint]=e_pT[ipoint]; e_pT2[ipoint]=e_pT[ipoint]; sprintf(histoname,"hInvMassAll_%2.0f",100*pT[ipoint]); TH1D * nume = hInvMassAll_vs_Pt->ProjectionX("nume",ibin1,ibin2-1); hInvMassAll[ipoint] = new TH1D(*nume); hInvMassAll[ipoint]->SetName(histoname); hInvMassAll[ipoint]->SetTitle(histoname); hInvMassAll[ipoint]->Sumw2(); sprintf(histoname,"hInvMassSub_%2.0f",100*pT[ipoint]); hInvMassSub[ipoint] = new TH1D(*nume); hInvMassSub[ipoint]->SetName(histoname); hInvMassSub[ipoint]->SetTitle(histoname); hInvMassSub[ipoint]->Sumw2(); sprintf(histoname,"hInvMassBgk_%2.0f",100*pT[ipoint]); TH1D * deno = hInvMassBgk_vs_Pt->ProjectionX("deno",ibin1,ibin2-1); hInvMassBgk[ipoint]= new TH1D(*deno); hInvMassBgk[ipoint]->SetName(histoname);hInvMassBgk[ipoint]->SetTitle(histoname); hInvMassBgk[ipoint]->Sumw2(); hInvMassSub[ipoint]->Add(hInvMassBgk[ipoint],-1.); hInvMassSub[ipoint]->Fit("gaus","","",InvMass1,InvMass2); Cent[ipoint] = hInvMassSub[ipoint]->GetFunction("gaus")->GetParameter(1); e_Cent[ipoint] = hInvMassSub[ipoint]->GetFunction("gaus")->GetParError(1); Sigma[ipoint] = hInvMassSub[ipoint]->GetFunction("gaus")->GetParameter(2); e_Sigma[ipoint] = hInvMassSub[ipoint]->GetFunction("gaus")->GetParError(2); integral1 = hInvMassSub[ipoint]->FindBin( (hInvMassSub[ipoint]->GetFunction("gaus")->GetParameter(1)-2.*hInvMassSub[ipoint]->GetFunction("gaus")->GetParameter(2) ) ); integral2 = hInvMassSub[ipoint]->FindBin( (hInvMassSub[ipoint]->GetFunction("gaus")->GetParameter(1)+2.*hInvMassSub[ipoint]->GetFunction("gaus")->GetParameter(2) ) ); dNdpT[ipoint] = hInvMassSub[ipoint]->Integral(integral1,integral2); for(ibin=integral1; ibin<=integral2; ibin++) { e_dNdpT[ipoint]+=hInvMassSub[ipoint]->GetBinContent(ibin)*hInvMassSub[ipoint]->GetBinContent(ibin); } e_dNdpT[ipoint] = TMath::Sqrt( e_dNdpT[ipoint]); } MUONmassPlot.Close(); TFile out("QuarkoniaPtDistri.root","RECREATE"); TGraphErrors * gePtDistri = new TGraphErrors(NumberOfPoints,pT,dNdpT,e_pT, e_dNdpT); TGraphErrors * geCenter = new TGraphErrors(NumberOfPoints,pT1,Cent,e_pT1, e_Cent); TGraphErrors * geSigma = new TGraphErrors(NumberOfPoints,pT2,Sigma,e_pT2, e_Sigma); gePtDistri->Write(); geCenter->Write(); geSigma->Write(); for(ipoint=0;ipointWrite(); hInvMassBgk[ipoint]->Write(); hInvMassSub[ipoint]->Write(); } out.Write(); out.Close(); TCanvas *c1 =new TCanvas("c1","c1"); TH2D * hframe1 = new TH2D("hframe1","hframe1",10,0,12,10,InvMass1,InvMass2); hframe1->SetXTitle("Transverse Momentum (GeV/c)"); hframe1->SetYTitle("Resonance Centroide (GeV/C^{2})"); hframe1->Draw(); geCenter->SetMarkerStyle(27); geCenter->Draw("p"); TCanvas *c2 =new TCanvas("c2","c2"); TH2D * hframe2 = new TH2D("hframe2","hframe2",10,0,12,10,0.03,0.200); hframe2->SetXTitle("Transverse Momentum (GeV/c)"); hframe2->SetYTitle("Resonance Sigma (GeV/C^2)"); hframe2->Draw(); geSigma->SetMarkerStyle(28); geSigma->Draw("p"); TCanvas *c3 =new TCanvas("c3","c3"); TH2D * hframe3 = new TH2D("hframe3","hframe3",10,0,12,10,0.1,10000); hframe3->SetXTitle("Transverse Momentum (GeV/c)"); hframe3->SetYTitle("dN/dpT (GeV^{-1})"); hframe3->Draw(); c3->SetLogy(); hframe3->Draw(); gePtDistri->SetMarkerStyle(29); gePtDistri->Draw("p"); TCanvas *c4 =new TCanvas("c4","c4"); c4->SetLogy(); c4->Divide(3,3); Int_t i; Float_t izoom1; Float_t izoom2; for (i=1;i<10;i++) { izoom1 = hInvMassSub[i]->FindBin( (hInvMassSub[i]->GetFunction("gaus")->GetParameter(1)-15.*hInvMassSub[i]->GetFunction("gaus")->GetParameter(2) ) ); izoom2 = hInvMassSub[i]->FindBin( (hInvMassSub[i]->GetFunction("gaus")->GetParameter(1)+15.*hInvMassSub[i]->GetFunction("gaus")->GetParameter(2) ) ); c4->cd(i); hInvMassAll[i]->SetXTitle("Invariant Mass (GeV/C^{2})"); hInvMassAll[i]->SetYTitle("Counts (1/25 MeV)"); hInvMassAll[i]->GetXaxis()->SetRange(izoom1,izoom2); hInvMassAll[i]->Draw(); hInvMassBgk[i]->SetLineColor(4); hInvMassBgk[i]->Draw("histo,same"); } TCanvas *c5 =new TCanvas("c5","c5"); c5->Divide(3,3); Int_t i; for (i=1;i<10;i++) { c5->cd(i); izoom1 = hInvMassSub[i]->FindBin( (hInvMassSub[i]->GetFunction("gaus")->GetParameter(1)-15.*hInvMassSub[i]->GetFunction("gaus")->GetParameter(2) ) ); izoom2 = hInvMassSub[i]->FindBin( (hInvMassSub[i]->GetFunction("gaus")->GetParameter(1)+15.*hInvMassSub[i]->GetFunction("gaus")->GetParameter(2) ) ); hInvMassSub[i]->GetXaxis()->SetRange(izoom1,izoom2); hInvMassSub[i]->SetXTitle("Invariant Mass (GeV/C^{2})"); hInvMassSub[i]->SetYTitle("Counts (1/25 MeV)"); hInvMassSub[i]->Draw(); } }