コード例 #1
0
void computeAccSelZmmBinned(const TString conf,      // input file
                            const TString outputDir  // output directory
                           ) {
    gBenchmark->Start("computeAccSelZmmBinned");

    //--------------------------------------------------------------------------------------------------------------
    // Settings
    //==============================================================================================================

    const Double_t MASS_LOW   = 60;
    const Double_t MASS_HIGH  = 120;
    const Double_t PT_CUT     = 25;
    const Double_t ETA_CUT    = 2.1;
    const Double_t MUON_MASS  = 0.105658369;

    // efficiency files
    const TString dataHLTEffName_pos = "../Efficiency/May23_MuHLTEff_pos/analysis/eff.root";
    const TString dataHLTEffName_neg = "../Efficiency/May23_MuHLTEff_neg/analysis/eff.root";
    const TString zmmHLTEffName_pos  = "../Efficiency/Zmm_MuHLTEff_pos/analysis/eff.root";
    const TString zmmHLTEffName_neg  = "../Efficiency/Zmm_MuHLTEff_neg/analysis/eff.root";

    const TString dataSelEffName_pos = "../Efficiency/May23_MuSelEff_pos/analysis/eff.root";
    const TString dataSelEffName_neg = "../Efficiency/May23_MuSelEff_neg/analysis/eff.root";
    const TString zmmSelEffName_pos  = "../Efficiency/Zmm_MuSelEff_pos/analysis/eff.root";
    const TString zmmSelEffName_neg  = "../Efficiency/Zmm_MuSelEff_neg/analysis/eff.root";

    const TString dataTrkEffName_pos = "../Efficiency/May23_MuTrkEff_pos/analysis/eff.root";
    const TString dataTrkEffName_neg = "../Efficiency/May23_MuTrkEff_neg/analysis/eff.root";
    const TString zmmTrkEffName_pos  = "../Efficiency/Zmm_MuTrkEff_pos/analysis/eff.root";
    const TString zmmTrkEffName_neg  = "../Efficiency/Zmm_MuTrkEff_neg/analysis/eff.root";

    const TString dataStaEffName_pos = "../Efficiency/May23_MuStaEff_iso_pos/analysis/eff.root";
    const TString dataStaEffName_neg = "../Efficiency/May23_MuStaEff_iso_neg/analysis/eff.root";
    const TString zmmStaEffName_pos  = "../Efficiency/Zmm_MuStaEff_iso_pos/analysis/eff.root";
    const TString zmmStaEffName_neg  = "../Efficiency/Zmm_MuStaEff_iso_neg/analysis/eff.root";


    //--------------------------------------------------------------------------------------------------------------
    // Main analysis code
    //==============================================================================================================

    vector<TString> fnamev;  // file name per input file
    vector<TString> labelv;  // TLegend label per input file
    vector<Int_t>   colorv;  // plot color per input file
    vector<Int_t>   linev;   // plot line style per input file

    //
    // parse .conf file
    //
    ifstream ifs;
    ifs.open(conf.Data());
    assert(ifs.is_open());
    string line;
    while(getline(ifs,line)) {
        if(line[0]=='#') continue;

        string fname;
        Int_t color, linesty;
        stringstream ss(line);
        ss >> fname >> color >> linesty;
        string label = line.substr(line.find('@')+1);
        fnamev.push_back(fname);
        labelv.push_back(label);
        colorv.push_back(color);
        linev.push_back(linesty);
    }
    ifs.close();

    // Create output directory
    gSystem->mkdir(outputDir,kTRUE);


    //
    // HLT efficiency
    //
    cout << "Loading trigger efficiencies..." << endl;

    TFile *dataHLTEffFile_pos = new TFile(dataHLTEffName_pos);
    CEffUser2D dataHLTEff_pos;
    dataHLTEff_pos.loadEff((TH2D*)dataHLTEffFile_pos->Get("hEffEtaPt"), (TH2D*)dataHLTEffFile_pos->Get("hErrlEtaPt"), (TH2D*)dataHLTEffFile_pos->Get("hErrhEtaPt"));

    TFile *dataHLTEffFile_neg = new TFile(dataHLTEffName_neg);
    CEffUser2D dataHLTEff_neg;
    dataHLTEff_neg.loadEff((TH2D*)dataHLTEffFile_neg->Get("hEffEtaPt"), (TH2D*)dataHLTEffFile_neg->Get("hErrlEtaPt"), (TH2D*)dataHLTEffFile_neg->Get("hErrhEtaPt"));

    TFile *zmmHLTEffFile_pos = new TFile(zmmHLTEffName_pos);
    CEffUser2D zmmHLTEff_pos;
    zmmHLTEff_pos.loadEff((TH2D*)zmmHLTEffFile_pos->Get("hEffEtaPt"), (TH2D*)zmmHLTEffFile_pos->Get("hErrlEtaPt"), (TH2D*)zmmHLTEffFile_pos->Get("hErrhEtaPt"));

    TFile *zmmHLTEffFile_neg = new TFile(zmmHLTEffName_neg);
    CEffUser2D zmmHLTEff_neg;
    zmmHLTEff_neg.loadEff((TH2D*)zmmHLTEffFile_neg->Get("hEffEtaPt"), (TH2D*)zmmHLTEffFile_neg->Get("hErrlEtaPt"), (TH2D*)zmmHLTEffFile_neg->Get("hErrhEtaPt"));

    //
    // Selection efficiency
    //
    cout << "Loading selection efficiencies..." << endl;

    TFile *dataSelEffFile_pos = new TFile(dataSelEffName_pos);
    CEffUser2D dataSelEff_pos;
    dataSelEff_pos.loadEff((TH2D*)dataSelEffFile_pos->Get("hEffEtaPt"), (TH2D*)dataSelEffFile_pos->Get("hErrlEtaPt"), (TH2D*)dataSelEffFile_pos->Get("hErrhEtaPt"));

    TFile *dataSelEffFile_neg = new TFile(dataSelEffName_neg);
    CEffUser2D dataSelEff_neg;
    dataSelEff_neg.loadEff((TH2D*)dataSelEffFile_neg->Get("hEffEtaPt"), (TH2D*)dataSelEffFile_neg->Get("hErrlEtaPt"), (TH2D*)dataSelEffFile_neg->Get("hErrhEtaPt"));

    TFile *zmmSelEffFile_pos = new TFile(zmmSelEffName_pos);
    CEffUser2D zmmSelEff_pos;
    zmmSelEff_pos.loadEff((TH2D*)zmmSelEffFile_pos->Get("hEffEtaPt"), (TH2D*)zmmSelEffFile_pos->Get("hErrlEtaPt"), (TH2D*)zmmSelEffFile_pos->Get("hErrhEtaPt"));

    TFile *zmmSelEffFile_neg = new TFile(zmmSelEffName_neg);
    CEffUser2D zmmSelEff_neg;
    zmmSelEff_neg.loadEff((TH2D*)zmmSelEffFile_neg->Get("hEffEtaPt"), (TH2D*)zmmSelEffFile_neg->Get("hErrlEtaPt"), (TH2D*)zmmSelEffFile_neg->Get("hErrhEtaPt"));

    //
    // Standalone efficiency
    //
    cout << "Loading standalone efficiencies..." << endl;

    TFile *dataStaEffFile_pos = new TFile(dataStaEffName_pos);
    CEffUser2D dataStaEff_pos;
    dataStaEff_pos.loadEff((TH2D*)dataStaEffFile_pos->Get("hEffEtaPt"), (TH2D*)dataStaEffFile_pos->Get("hErrlEtaPt"), (TH2D*)dataStaEffFile_pos->Get("hErrhEtaPt"));

    TFile *dataStaEffFile_neg = new TFile(dataStaEffName_neg);
    CEffUser2D dataStaEff_neg;
    dataStaEff_neg.loadEff((TH2D*)dataStaEffFile_neg->Get("hEffEtaPt"), (TH2D*)dataStaEffFile_neg->Get("hErrlEtaPt"), (TH2D*)dataStaEffFile_neg->Get("hErrhEtaPt"));

    TFile *zmmStaEffFile_pos = new TFile(zmmStaEffName_pos);
    CEffUser2D zmmStaEff_pos;
    zmmStaEff_pos.loadEff((TH2D*)zmmStaEffFile_pos->Get("hEffEtaPt"), (TH2D*)zmmStaEffFile_pos->Get("hErrlEtaPt"), (TH2D*)zmmStaEffFile_pos->Get("hErrhEtaPt"));

    TFile *zmmStaEffFile_neg = new TFile(zmmStaEffName_neg);
    CEffUser2D zmmStaEff_neg;
    zmmStaEff_neg.loadEff((TH2D*)zmmStaEffFile_neg->Get("hEffEtaPt"), (TH2D*)zmmStaEffFile_neg->Get("hErrlEtaPt"), (TH2D*)zmmStaEffFile_neg->Get("hErrhEtaPt"));

    //
    // Tracker efficiency
    //
    cout << "Loading track efficiencies..." << endl;

    TFile *dataTrkEffFile_pos = new TFile(dataTrkEffName_pos);
    CEffUser2D dataTrkEff_pos;
    dataTrkEff_pos.loadEff((TH2D*)dataTrkEffFile_pos->Get("hEffEtaPt"), (TH2D*)dataTrkEffFile_pos->Get("hErrlEtaPt"), (TH2D*)dataTrkEffFile_pos->Get("hErrhEtaPt"));

    TFile *dataTrkEffFile_neg = new TFile(dataTrkEffName_neg);
    CEffUser2D dataTrkEff_neg;
    dataTrkEff_neg.loadEff((TH2D*)dataTrkEffFile_neg->Get("hEffEtaPt"), (TH2D*)dataTrkEffFile_neg->Get("hErrlEtaPt"), (TH2D*)dataTrkEffFile_neg->Get("hErrhEtaPt"));

    TFile *zmmTrkEffFile_pos = new TFile(zmmTrkEffName_pos);
    CEffUser2D zmmTrkEff_pos;
    zmmTrkEff_pos.loadEff((TH2D*)zmmTrkEffFile_pos->Get("hEffEtaPt"), (TH2D*)zmmTrkEffFile_pos->Get("hErrlEtaPt"), (TH2D*)zmmTrkEffFile_pos->Get("hErrhEtaPt"));

    TFile *zmmTrkEffFile_neg = new TFile(zmmTrkEffName_neg);
    CEffUser2D zmmTrkEff_neg;
    zmmTrkEff_neg.loadEff((TH2D*)zmmTrkEffFile_neg->Get("hEffEtaPt"), (TH2D*)zmmTrkEffFile_neg->Get("hErrlEtaPt"), (TH2D*)zmmTrkEffFile_neg->Get("hErrhEtaPt"));


    // Data structures to store info from TTrees
    mithep::TEventInfo *info = new mithep::TEventInfo();
    mithep::TGenInfo   *gen  = new mithep::TGenInfo();
    TClonesArray *muonArr    = new TClonesArray("mithep::TMuon");

    TFile *infile=0;
    TTree *eventTree=0;

    // Variables to store acceptances and uncertainties (per input file)
    vector<Double_t> nEvtsv, nSelv, nSelCorrv;
    vector<Double_t> accv, accCorrv;
    vector<Double_t> accErrv, accCorrErrv;

    //
    // loop through files
    //
    for(UInt_t ifile=0; ifile<fnamev.size(); ifile++) {

        // Read input file and get the TTrees
        cout << "Processing " << fnamev[ifile] << " ..." << endl;
        infile = new TFile(fnamev[ifile]);
        assert(infile);

        eventTree = (TTree*)infile->Get("Events");
        assert(eventTree);
        eventTree->SetBranchAddress("Info", &info);
        TBranch *infoBr = eventTree->GetBranch("Info");
        eventTree->SetBranchAddress("Gen",  &gen);
        TBranch *genBr  = eventTree->GetBranch("Gen");
        eventTree->SetBranchAddress("Muon", &muonArr);
        TBranch *muonBr = eventTree->GetBranch("Muon");

        nEvtsv.push_back(0);
        nSelv.push_back(0);
        nSelCorrv.push_back(0);

        //
        // loop over events
        //
        for(UInt_t ientry=0; ientry<eventTree->GetEntries(); ientry++) {
            genBr->GetEntry(ientry);
            if(gen->vmass<MASS_LOW || gen->vmass>MASS_HIGH) continue;

            infoBr->GetEntry(ientry);

            Double_t weight=1;
            nEvtsv[ifile]+=weight;

            // trigger requirement
            ULong_t trigger = kHLT_Mu15_eta2p1;
            ULong_t trigObj = kHLT_Mu15_eta2p1_MuObj;
            if(!(info->triggerBits & trigger)) continue;

            // good vertex requirement
            if(!(info->hasGoodPV)) continue;

            muonArr->Clear();
            muonBr->GetEntry(ientry);
            for(Int_t i1=0; i1<muonArr->GetEntriesFast(); i1++) {
                const mithep::TMuon *mu1 = (mithep::TMuon*)((*muonArr)[i1]);

                if(mu1->pt	  < PT_CUT)  continue;  // lepton pT cut
                if(fabs(mu1->eta) > ETA_CUT) continue;  // lepton |eta| cut
                if(!passMuonID(mu1))	     continue;  // lepton selection

                LorentzVector vMu1(mu1->pt, mu1->eta, mu1->phi, MUON_MASS);

                for(Int_t i2=i1+1; i2<muonArr->GetEntriesFast(); i2++) {
                    const mithep::TMuon *mu2 = (mithep::TMuon*)((*muonArr)[i2]);

                    if(mu1->q == mu2->q)	       continue;  // opposite charge requirement
                    if(mu2->pt        < PT_CUT)  continue;  // lepton pT cut
                    if(fabs(mu2->eta) > ETA_CUT) continue;  // lepton |eta| cut
                    if(!passMuonID(mu2))	       continue;  // lepton selection

                    LorentzVector vMu2(mu2->pt, mu2->eta, mu2->phi, MUON_MASS);

                    // trigger match
                    if(!(mu1->hltMatchBits & trigObj) && !(mu2->hltMatchBits & trigObj)) continue;

                    // mass window
                    LorentzVector vDilep = vMu1 + vMu2;
                    if((vDilep.M()<MASS_LOW) || (vDilep.M()>MASS_HIGH)) continue;


                    /******** We have a Z candidate! HURRAY! ********/

                    Double_t effdata, effmc;
                    Double_t corr=1;

                    effdata=1;
                    effmc=1;
                    if(mu1->q>0) {
                        effdata *= (1.-dataHLTEff_pos.getEff(mu1->eta, mu1->pt));
                        effmc   *= (1.-zmmHLTEff_pos.getEff(mu1->eta, mu1->pt));
                    } else {
                        effdata *= (1.-dataHLTEff_neg.getEff(mu1->eta, mu1->pt));
                        effmc   *= (1.-zmmHLTEff_neg.getEff(mu1->eta, mu1->pt));
                    }
                    if(mu2->q>0) {
                        effdata *= (1.-dataHLTEff_pos.getEff(mu2->eta, mu2->pt));
                        effmc   *= (1.-zmmHLTEff_pos.getEff(mu2->eta, mu2->pt));
                    } else {
                        effdata *= (1.-dataHLTEff_neg.getEff(mu2->eta, mu2->pt));
                        effmc   *= (1.-zmmHLTEff_neg.getEff(mu2->eta, mu2->pt));
                    }
                    effdata = 1.-effdata;
                    effmc   = 1.-effmc;
                    corr *= effdata/effmc;

                    effdata=1;
                    effmc=1;
                    if(mu1->q>0) {
                        effdata *= dataSelEff_pos.getEff(mu1->eta, mu1->pt);
                        effmc   *= zmmSelEff_pos.getEff(mu1->eta, mu1->pt);
                    } else {
                        effdata *= dataSelEff_neg.getEff(mu1->eta, mu1->pt);
                        effmc   *= zmmSelEff_neg.getEff(mu1->eta, mu1->pt);
                    }
                    if(mu2->q>0) {
                        effdata *= dataSelEff_pos.getEff(mu2->eta, mu2->pt);
                        effmc   *= zmmSelEff_pos.getEff(mu2->eta, mu2->pt);
                    } else {
                        effdata *= dataSelEff_neg.getEff(mu2->eta, mu2->pt);
                        effmc   *= zmmSelEff_neg.getEff(mu2->eta, mu2->pt);
                    }
                    corr *= effdata/effmc;

                    effdata=1;
                    effmc=1;
                    if(mu1->q>0) {
                        effdata *= dataStaEff_pos.getEff(fabs(mu1->eta), mu1->pt);
                        effmc   *= zmmStaEff_pos.getEff(fabs(mu1->eta), mu1->pt);
                    } else {
                        effdata *= dataStaEff_neg.getEff(fabs(mu1->eta), mu1->pt);
                        effmc   *= zmmStaEff_neg.getEff(fabs(mu1->eta), mu1->pt);
                    }
                    if(mu2->q>0) {
                        effdata *= dataStaEff_pos.getEff(fabs(mu2->eta), mu2->pt);
                        effmc   *= zmmStaEff_pos.getEff(fabs(mu2->eta), mu2->pt);
                    } else {
                        effdata *= dataStaEff_neg.getEff(fabs(mu2->eta), mu2->pt);
                        effmc   *= zmmStaEff_neg.getEff(fabs(mu2->eta), mu2->pt);
                    }
                    corr *= effdata/effmc;

                    effdata=1;
                    effmc=1;
                    if(mu1->q>0) {
                        effdata *= dataTrkEff_pos.getEff(fabs(mu1->eta), mu1->pt);
                        effmc   *= zmmTrkEff_pos.getEff(fabs(mu1->eta), mu1->pt);
                    } else {
                        effdata *= dataTrkEff_neg.getEff(fabs(mu1->eta), mu1->pt);
                        effmc   *= zmmTrkEff_neg.getEff(fabs(mu1->eta), mu1->pt);
                    }
                    if(mu2->q>0) {
                        effdata *= dataTrkEff_pos.getEff(fabs(mu2->eta), mu2->pt);
                        effmc   *= zmmTrkEff_pos.getEff(fabs(mu2->eta), mu2->pt);
                    } else {
                        effdata *= dataTrkEff_neg.getEff(fabs(mu2->eta), mu2->pt);
                        effmc   *= zmmTrkEff_neg.getEff(fabs(mu2->eta), mu2->pt);
                    }
                    corr *= effdata/effmc;

                    nSelv[ifile]    +=weight;
                    nSelCorrv[ifile]+=weight*corr;
                }
            }
        }

        // compute acceptances
        accv.push_back(nSelv[ifile]/nEvtsv[ifile]);
        accErrv.push_back(accv[ifile]*sqrt((1.-accv[ifile])/nEvtsv[ifile]));
        accCorrv.push_back(nSelCorrv[ifile]/nEvtsv[ifile]);
        accCorrErrv.push_back(accCorrv[ifile]*sqrt((1.-accCorrv[ifile])/nEvtsv[ifile]));

        delete infile;
        infile=0, eventTree=0;
    }
    delete info;
    delete gen;
    delete muonArr;


    //--------------------------------------------------------------------------------------------------------------
    // Output
    //==============================================================================================================
    cout << "*" << endl;
    cout << "* SUMMARY" << endl;
    cout << "*--------------------------------------------------" << endl;
    cout << " Z -> mu mu" << endl;
    cout << "  Mass window: [" << MASS_LOW << ", " << MASS_HIGH << "]" << endl;
    cout << "  pT > " << PT_CUT << endl;
    cout << "  |eta| < " << ETA_CUT << endl;
    cout << endl;

    for(UInt_t ifile=0; ifile<fnamev.size(); ifile++) {
        cout << "   ================================================" << endl;
        cout << "    Label: " << labelv[ifile] << endl;
        cout << "     File: " << fnamev[ifile] << endl;
        cout << endl;
        cout << "    *** Acceptance ***" << endl;
        cout << "          nominal: " << setw(12) << nSelv[ifile]   << " / " << nEvtsv[ifile] << " = " << accv[ifile]   << " +/- " << accErrv[ifile] << endl;
        cout << "     SF corrected: " << accCorrv[ifile] << " +/- " << accCorrErrv[ifile] << endl;
        cout << endl;
    }

    char txtfname[100];
    sprintf(txtfname,"%s/binned.txt",outputDir.Data());
    ofstream txtfile;
    txtfile.open(txtfname);
    txtfile << "*" << endl;
    txtfile << "* SUMMARY" << endl;
    txtfile << "*--------------------------------------------------" << endl;
    txtfile << " Z -> mu mu" << endl;
    txtfile << "  Mass window: [" << MASS_LOW << ", " << MASS_HIGH << "]" << endl;
    txtfile << "  pT > " << PT_CUT << endl;
    txtfile << "  |eta| < " << ETA_CUT << endl;
    txtfile << endl;

    for(UInt_t ifile=0; ifile<fnamev.size(); ifile++) {
        txtfile << "   ================================================" << endl;
        txtfile << "    Label: " << labelv[ifile] << endl;
        txtfile << "     File: " << fnamev[ifile] << endl;
        txtfile << endl;
        txtfile << "    *** Acceptance ***" << endl;
        txtfile << "          nominal: " << setw(12) << nSelv[ifile]   << " / " << nEvtsv[ifile] << " = " << accv[ifile]   << " +/- " << accErrv[ifile] << endl;
        txtfile << "     SF corrected: " << accCorrv[ifile] << " +/- " << accCorrErrv[ifile] << endl;
        txtfile << endl;
    }
    txtfile.close();

    cout << endl;
    cout << "  <> Output saved in " << outputDir << "/" << endl;
    cout << endl;

    gBenchmark->Show("computeAccSelZmmBinned");
}
コード例 #2
0
void computeAccSelZmmBinned_PileupSys(const TString conf,      // input file
			    const TString inputDir,
                            const TString outputDir,  // output directory
			    const Int_t   doPU,
			    const TString PUtype
) {
  gBenchmark->Start("computeAccSelZmmBinned");

  //--------------------------------------------------------------------------------------------------------------
  // Settings 
  //============================================================================================================== 

  const Double_t MASS_LOW   = 60;
  const Double_t MASS_HIGH  = 120;
  const Double_t PT_CUT     = 25;
  const Double_t ETA_CUT    = 2.4;
  const Double_t MUON_MASS  = 0.105658369;

  const Int_t BOSON_ID  = 23;
  const Int_t LEPTON_ID = 13;
  
  // efficiency files
  const TString dataHLTEffName_pos = inputDir + "MuHLTEff/MGpositive/eff.root";
  const TString dataHLTEffName_neg = inputDir + "MuHLTEff/MGnegative/eff.root";
  const TString zmmHLTEffName_pos  = inputDir + "MuHLTEff/CTpositive/eff.root";
  const TString zmmHLTEffName_neg  = inputDir + "MuHLTEff/CTnegative/eff.root";

  const TString dataSelEffName_pos = inputDir + "MuSITEff/MGpositive_FineBin/eff.root";
  const TString dataSelEffName_neg = inputDir + "MuSITEff/MGnegative_FineBin/eff.root";
  const TString zmmSelEffName_pos  = inputDir + "MuSITEff/CTpositive/eff.root";
  const TString zmmSelEffName_neg  = inputDir + "MuSITEff/CTnegative/eff.root";

  const TString dataTrkEffName_pos = inputDir + "MuSITEff/MGpositive_FineBin/eff.root";
  const TString dataTrkEffName_neg = inputDir + "MuSITEff/MGnegative_FineBin/eff.root";
  const TString zmmTrkEffName_pos  = inputDir + "MuSITEff/CTpositive/eff.root";
  const TString zmmTrkEffName_neg  = inputDir + "MuSITEff/CTnegative/eff.root";

  const TString dataStaEffName_pos = inputDir + "MuStaEff/MGpositive/eff.root";
  const TString dataStaEffName_neg = inputDir + "MuStaEff/MGnegative/eff.root";
  const TString zmmStaEffName_pos  = inputDir + "MuStaEff/CTpositive/eff.root";
  const TString zmmStaEffName_neg  = inputDir + "MuStaEff/CTnegative/eff.root";
  
  // load pileup reweighting file
  TFile *f_rw = TFile::Open("../Tools/puWeights_76x.root", "read");
  TH1D *h_rw = (TH1D*) f_rw->Get(PUtype.Data());
 
  //--------------------------------------------------------------------------------------------------------------
  // Main analysis code 
  //==============================================================================================================  

  vector<TString> fnamev;  // file name per input file
  vector<TString> labelv;  // TLegend label per input file
  vector<Int_t>   colorv;  // plot color per input file
  vector<Int_t>   linev;   // plot line style per input file

  //
  // parse .conf file
  //
  ifstream ifs;
  ifs.open(conf.Data());
  assert(ifs.is_open());
  string line;
  while(getline(ifs,line)) {
    if(line[0]=='#') continue;
    
    string fname;
    Int_t color, linesty;
    stringstream ss(line);
    ss >> fname >> color >> linesty;
    string label = line.substr(line.find('@')+1);
    fnamev.push_back(fname);
    labelv.push_back(label);
    colorv.push_back(color);
    linev.push_back(linesty);
  }
  ifs.close();

  // Create output directory
  gSystem->mkdir(outputDir,kTRUE);  

  TH2D *h=0;

  //
  // HLT efficiency
  //
  cout << "Loading trigger efficiencies..." << endl;
  
  TFile *dataHLTEffFile_pos = new TFile(dataHLTEffName_pos);
  CEffUser2D dataHLTEff_pos;
  dataHLTEff_pos.loadEff((TH2D*)dataHLTEffFile_pos->Get("hEffEtaPt"), (TH2D*)dataHLTEffFile_pos->Get("hErrlEtaPt"), (TH2D*)dataHLTEffFile_pos->Get("hErrhEtaPt"));
  
  TFile *dataHLTEffFile_neg = new TFile(dataHLTEffName_neg);
  CEffUser2D dataHLTEff_neg;
  dataHLTEff_neg.loadEff((TH2D*)dataHLTEffFile_neg->Get("hEffEtaPt"), (TH2D*)dataHLTEffFile_neg->Get("hErrlEtaPt"), (TH2D*)dataHLTEffFile_neg->Get("hErrhEtaPt"));
    
  TFile *zmmHLTEffFile_pos = new TFile(zmmHLTEffName_pos);
  CEffUser2D zmmHLTEff_pos;
  zmmHLTEff_pos.loadEff((TH2D*)zmmHLTEffFile_pos->Get("hEffEtaPt"), (TH2D*)zmmHLTEffFile_pos->Get("hErrlEtaPt"), (TH2D*)zmmHLTEffFile_pos->Get("hErrhEtaPt"));
  
  TFile *zmmHLTEffFile_neg = new TFile(zmmHLTEffName_neg);
  CEffUser2D zmmHLTEff_neg;
  zmmHLTEff_neg.loadEff((TH2D*)zmmHLTEffFile_neg->Get("hEffEtaPt"), (TH2D*)zmmHLTEffFile_neg->Get("hErrlEtaPt"), (TH2D*)zmmHLTEffFile_neg->Get("hErrhEtaPt"));

  h =(TH2D*)dataHLTEffFile_pos->Get("hEffEtaPt");
  TH2D *hHLTErr_pos = new TH2D("hHLTErr_pos", "",h->GetNbinsX(),h->GetXaxis()->GetXmin(),h->GetXaxis()->GetXmax(),
			       h->GetNbinsY(),h->GetYaxis()->GetXmin(),h->GetYaxis()->GetXmax());
  TH2D *hHLTErr_neg = new TH2D("hHLTErr_neg", "",h->GetNbinsX(),h->GetXaxis()->GetXmin(),h->GetXaxis()->GetXmax(),
			       h->GetNbinsY(),h->GetYaxis()->GetXmin(),h->GetYaxis()->GetXmax());
  
  //
  // Selection efficiency
  //
  cout << "Loading selection efficiencies..." << endl;
  
  TFile *dataSelEffFile_pos = new TFile(dataSelEffName_pos);
  CEffUser2D dataSelEff_pos;
  dataSelEff_pos.loadEff((TH2D*)dataSelEffFile_pos->Get("hEffEtaPt"), (TH2D*)dataSelEffFile_pos->Get("hErrlEtaPt"), (TH2D*)dataSelEffFile_pos->Get("hErrhEtaPt"));
  
  TFile *dataSelEffFile_neg = new TFile(dataSelEffName_neg);
  CEffUser2D dataSelEff_neg;
  dataSelEff_neg.loadEff((TH2D*)dataSelEffFile_neg->Get("hEffEtaPt"), (TH2D*)dataSelEffFile_neg->Get("hErrlEtaPt"), (TH2D*)dataSelEffFile_neg->Get("hErrhEtaPt"));
  
  TFile *zmmSelEffFile_pos = new TFile(zmmSelEffName_pos);
  CEffUser2D zmmSelEff_pos;
  zmmSelEff_pos.loadEff((TH2D*)zmmSelEffFile_pos->Get("hEffEtaPt"), (TH2D*)zmmSelEffFile_pos->Get("hErrlEtaPt"), (TH2D*)zmmSelEffFile_pos->Get("hErrhEtaPt"));

  TFile *zmmSelEffFile_neg = new TFile(zmmSelEffName_neg);
  CEffUser2D zmmSelEff_neg;
  zmmSelEff_neg.loadEff((TH2D*)zmmSelEffFile_neg->Get("hEffEtaPt"), (TH2D*)zmmSelEffFile_neg->Get("hErrlEtaPt"), (TH2D*)zmmSelEffFile_neg->Get("hErrhEtaPt"));

  h =(TH2D*)dataSelEffFile_pos->Get("hEffEtaPt");
  TH2D *hSelErr_pos = new TH2D("hSelErr_pos", "",h->GetNbinsX(),h->GetXaxis()->GetXmin(),h->GetXaxis()->GetXmax(),
			       h->GetNbinsY(),h->GetYaxis()->GetXmin(),h->GetYaxis()->GetXmax());
  TH2D *hSelErr_neg = new TH2D("hSelErr_neg", "",h->GetNbinsX(),h->GetXaxis()->GetXmin(),h->GetXaxis()->GetXmax(),
			       h->GetNbinsY(),h->GetYaxis()->GetXmin(),h->GetYaxis()->GetXmax());

  //
  // Standalone efficiency
  //
  cout << "Loading standalone efficiencies..." << endl;
  
  TFile *dataStaEffFile_pos = new TFile(dataStaEffName_pos);
  CEffUser2D dataStaEff_pos;
  dataStaEff_pos.loadEff((TH2D*)dataStaEffFile_pos->Get("hEffEtaPt"), (TH2D*)dataStaEffFile_pos->Get("hErrlEtaPt"), (TH2D*)dataStaEffFile_pos->Get("hErrhEtaPt"));
  
  TFile *dataStaEffFile_neg = new TFile(dataStaEffName_neg);
  CEffUser2D dataStaEff_neg;
  dataStaEff_neg.loadEff((TH2D*)dataStaEffFile_neg->Get("hEffEtaPt"), (TH2D*)dataStaEffFile_neg->Get("hErrlEtaPt"), (TH2D*)dataStaEffFile_neg->Get("hErrhEtaPt"));
  
  TFile *zmmStaEffFile_pos = new TFile(zmmStaEffName_pos);
  CEffUser2D zmmStaEff_pos;
  zmmStaEff_pos.loadEff((TH2D*)zmmStaEffFile_pos->Get("hEffEtaPt"), (TH2D*)zmmStaEffFile_pos->Get("hErrlEtaPt"), (TH2D*)zmmStaEffFile_pos->Get("hErrhEtaPt"));
  
  TFile *zmmStaEffFile_neg = new TFile(zmmStaEffName_neg);
  CEffUser2D zmmStaEff_neg;
  zmmStaEff_neg.loadEff((TH2D*)zmmStaEffFile_neg->Get("hEffEtaPt"), (TH2D*)zmmStaEffFile_neg->Get("hErrlEtaPt"), (TH2D*)zmmStaEffFile_neg->Get("hErrhEtaPt"));

  h =(TH2D*)dataStaEffFile_pos->Get("hEffEtaPt");
  TH2D *hStaErr_pos = new TH2D("hStaErr_pos", "",h->GetNbinsX(),h->GetXaxis()->GetXmin(),h->GetXaxis()->GetXmax(),
			       h->GetNbinsY(),h->GetYaxis()->GetXmin(),h->GetYaxis()->GetXmax());
  TH2D *hStaErr_neg = new TH2D("hStaErr_neg", "",h->GetNbinsX(),h->GetXaxis()->GetXmin(),h->GetXaxis()->GetXmax(),
			       h->GetNbinsY(),h->GetYaxis()->GetXmin(),h->GetYaxis()->GetXmax());

  //
  // Tracker efficiency
  //
  cout << "Loading track efficiencies..." << endl;
  
  TFile *dataTrkEffFile_pos = new TFile(dataTrkEffName_pos);
  CEffUser2D dataTrkEff_pos;
  dataTrkEff_pos.loadEff((TH2D*)dataTrkEffFile_pos->Get("hEffEtaPt"), (TH2D*)dataTrkEffFile_pos->Get("hErrlEtaPt"), (TH2D*)dataTrkEffFile_pos->Get("hErrhEtaPt"));
  
  TFile *dataTrkEffFile_neg = new TFile(dataTrkEffName_neg);
  CEffUser2D dataTrkEff_neg;
  dataTrkEff_neg.loadEff((TH2D*)dataTrkEffFile_neg->Get("hEffEtaPt"), (TH2D*)dataTrkEffFile_neg->Get("hErrlEtaPt"), (TH2D*)dataTrkEffFile_neg->Get("hErrhEtaPt"));
  
  TFile *zmmTrkEffFile_pos = new TFile(zmmTrkEffName_pos);
  CEffUser2D zmmTrkEff_pos;
  zmmTrkEff_pos.loadEff((TH2D*)zmmTrkEffFile_pos->Get("hEffEtaPt"), (TH2D*)zmmTrkEffFile_pos->Get("hErrlEtaPt"), (TH2D*)zmmTrkEffFile_pos->Get("hErrhEtaPt"));
  
  TFile *zmmTrkEffFile_neg = new TFile(zmmTrkEffName_neg);
  CEffUser2D zmmTrkEff_neg;
  zmmTrkEff_neg.loadEff((TH2D*)zmmTrkEffFile_neg->Get("hEffEtaPt"), (TH2D*)zmmTrkEffFile_neg->Get("hErrlEtaPt"), (TH2D*)zmmTrkEffFile_neg->Get("hErrhEtaPt"));

  h =(TH2D*)dataTrkEffFile_pos->Get("hEffEtaPt");
  TH2D *hTrkErr_pos = new TH2D("hTrkErr_pos", "",h->GetNbinsX(),h->GetXaxis()->GetXmin(),h->GetXaxis()->GetXmax(),
			       h->GetNbinsY(),h->GetYaxis()->GetXmin(),h->GetYaxis()->GetXmax());
  TH2D *hTrkErr_neg = new TH2D("hTrkErr_neg", "",h->GetNbinsX(),h->GetXaxis()->GetXmin(),h->GetXaxis()->GetXmax(),
			       h->GetNbinsY(),h->GetYaxis()->GetXmin(),h->GetYaxis()->GetXmax());

  // Data structures to store info from TTrees
  baconhep::TEventInfo *info   = new baconhep::TEventInfo();
  baconhep::TGenEventInfo *gen = new baconhep::TGenEventInfo();
  TClonesArray *genPartArr     = new TClonesArray("baconhep::TGenParticle");
  TClonesArray *muonArr        = new TClonesArray("baconhep::TMuon");
  TClonesArray *vertexArr  = new TClonesArray("baconhep::TVertex");
  
  TFile *infile=0;
  TTree *eventTree=0;
   
  // Variables to store acceptances and uncertainties (per input file)
  vector<Double_t> nEvtsv, nSelv;
  vector<Double_t> nSelCorrv, nSelCorrVarv;
  vector<Double_t> accv, accCorrv;
  vector<Double_t> accErrv, accErrCorrv;

  const baconhep::TTrigger triggerMenu("../../BaconAna/DataFormats/data/HLT_50nsGRun");
  
  //
  // loop through files
  //
  for(UInt_t ifile=0; ifile<fnamev.size(); ifile++) {  

    // Read input file and get the TTrees
    cout << "Processing " << fnamev[ifile] << " ..." << endl;
    infile = TFile::Open(fnamev[ifile]); 
    assert(infile);
  
    eventTree = (TTree*)infile->Get("Events"); assert(eventTree);  
    eventTree->SetBranchAddress("Info",             &info); TBranch *infoBr = eventTree->GetBranch("Info");
    eventTree->SetBranchAddress("GenEvtInfo",        &gen); TBranch *genBr  = eventTree->GetBranch("GenEvtInfo");
    eventTree->SetBranchAddress("GenParticle",&genPartArr); TBranch* genPartBr = eventTree->GetBranch("GenParticle");
    eventTree->SetBranchAddress("Muon",          &muonArr); TBranch *muonBr = eventTree->GetBranch("Muon");   
    eventTree->SetBranchAddress("PV",   &vertexArr); TBranch *vertexBr = eventTree->GetBranch("PV");

    nEvtsv.push_back(0);
    nSelv.push_back(0);
    nSelCorrv.push_back(0);
    nSelCorrVarv.push_back(0);

    //
    // loop over events
    //      
    for(UInt_t ientry=0; ientry<eventTree->GetEntries(); ientry++) {
      genBr->GetEntry(ientry);
      genPartArr->Clear(); genPartBr->GetEntry(ientry);
      infoBr->GetEntry(ientry);

      Int_t glepq1=-99;
      Int_t glepq2=-99;

      if (fabs(toolbox::flavor(genPartArr, BOSON_ID))!=LEPTON_ID) continue;
      TLorentzVector *vec=new TLorentzVector(0,0,0,0);
      TLorentzVector *lep1=new TLorentzVector(0,0,0,0);
      TLorentzVector *lep2=new TLorentzVector(0,0,0,0);
      toolbox::fillGen(genPartArr, BOSON_ID, vec, lep1, lep2,&glepq1,&glepq2,1);
      if(vec->M()<MASS_LOW || vec->M()>MASS_HIGH) continue;
      delete vec; delete lep1; delete lep2;

      vertexArr->Clear();
      vertexBr->GetEntry(ientry);
      double npv  = vertexArr->GetEntries();
      Double_t weight=gen->weight;
      if(doPU>0) weight*=h_rw->GetBinContent(h_rw->FindBin(info->nPUmean));

      nEvtsv[ifile]+=weight;
      
      // trigger requirement               
      if (!isMuonTrigger(triggerMenu, info->triggerBits)) continue;

      // good vertex requirement
      if(!(info->hasGoodPV)) continue;
    
      muonArr->Clear();
      muonBr->GetEntry(ientry);

      for(Int_t i1=0; i1<muonArr->GetEntriesFast(); i1++) {
  	const baconhep::TMuon *mu1 = (baconhep::TMuon*)((*muonArr)[i1]);

        if(mu1->pt	  < PT_CUT)  continue;  // lepton pT cut
        if(fabs(mu1->eta) > ETA_CUT) continue;  // lepton |eta| cut
        if(!passMuonID(mu1))	     continue;  // lepton selection
	
	TLorentzVector vMu1(0,0,0,0);
	vMu1.SetPtEtaPhiM(mu1->pt, mu1->eta, mu1->phi, MUON_MASS);

        for(Int_t i2=i1+1; i2<muonArr->GetEntriesFast(); i2++) {
          const baconhep::TMuon *mu2 = (baconhep::TMuon*)((*muonArr)[i2]);
        
          if(mu1->q == mu2->q)	       continue;  // opposite charge requirement
          if(mu2->pt        < PT_CUT)  continue;  // lepton pT cut
          if(fabs(mu2->eta) > ETA_CUT) continue;  // lepton |eta| cut
	  if(!passMuonID(mu2))	       continue;  // lepton selection

          TLorentzVector vMu2(0,0,0,0);
	  vMu2.SetPtEtaPhiM(mu2->pt, mu2->eta, mu2->phi, MUON_MASS);  

          // trigger match
	  if(!isMuonTriggerObj(triggerMenu, mu1->hltMatchBits, kFALSE) && !isMuonTriggerObj(triggerMenu, mu2->hltMatchBits, kFALSE)) continue;
	  
	  // mass window
          TLorentzVector vDilep = vMu1 + vMu2;
          if((vDilep.M()<MASS_LOW) || (vDilep.M()>MASS_HIGH)) continue;
          
          /******** We have a Z candidate! HURRAY! ********/
          Double_t effdata, effmc;
	  Double_t corr=1;
	  
	  effdata=1; effmc=1;    
          if(mu1->q>0) { 
            effdata *= (1.-dataHLTEff_pos.getEff(mu1->eta, mu1->pt)); 
            effmc   *= (1.-zmmHLTEff_pos.getEff(mu1->eta, mu1->pt)); 
          } else {
            effdata *= (1.-dataHLTEff_neg.getEff(mu1->eta, mu1->pt)); 
            effmc   *= (1.-zmmHLTEff_neg.getEff(mu1->eta, mu1->pt)); 
          }
          if(mu2->q>0) {
            effdata *= (1.-dataHLTEff_pos.getEff(mu2->eta, mu2->pt)); 
            effmc   *= (1.-zmmHLTEff_pos.getEff(mu2->eta, mu2->pt));
          } else {
            effdata *= (1.-dataHLTEff_neg.getEff(mu2->eta, mu2->pt)); 
            effmc   *= (1.-zmmHLTEff_neg.getEff(mu2->eta, mu2->pt));
          }
          effdata = 1.-effdata;
          effmc   = 1.-effmc;
          corr *= effdata/effmc;
    
          effdata=1; effmc=1;
          if(mu1->q>0) { 
            effdata *= dataSelEff_pos.getEff(mu1->eta, mu1->pt); 
            effmc   *= zmmSelEff_pos.getEff(mu1->eta, mu1->pt); 
          } else {
            effdata *= dataSelEff_neg.getEff(mu1->eta, mu1->pt); 
            effmc   *= zmmSelEff_neg.getEff(mu1->eta, mu1->pt); 
          }
          if(mu2->q>0) {
            effdata *= dataSelEff_pos.getEff(mu2->eta, mu2->pt); 
            effmc   *= zmmSelEff_pos.getEff(mu2->eta, mu2->pt);
          } else {
            effdata *= dataSelEff_neg.getEff(mu2->eta, mu2->pt); 
            effmc   *= zmmSelEff_neg.getEff(mu2->eta, mu2->pt);
          }
          corr *= effdata/effmc;
    
          effdata=1; effmc=1;
          if(mu1->q>0) { 
            effdata *= dataStaEff_pos.getEff(mu1->eta, mu1->pt); 
            effmc   *= zmmStaEff_pos.getEff(mu1->eta, mu1->pt); 
          } else {
            effdata *= dataStaEff_neg.getEff(mu1->eta, mu1->pt); 
            effmc   *= zmmStaEff_neg.getEff(mu1->eta, mu1->pt); 
          }
          if(mu2->q>0) {
            effdata *= dataStaEff_pos.getEff(mu2->eta, mu2->pt); 
            effmc   *= zmmStaEff_pos.getEff(mu2->eta, mu2->pt);
          } else {
            effdata *= dataStaEff_neg.getEff(mu2->eta, mu2->pt); 
            effmc   *= zmmStaEff_neg.getEff(mu2->eta, mu2->pt);
          }
          corr *= effdata/effmc;
    
          effdata=1; effmc=1;
          if(mu1->q>0) { 
            effdata *= dataTrkEff_pos.getEff(mu1->eta, mu1->pt); 
            effmc   *= zmmTrkEff_pos.getEff(mu1->eta, mu1->pt); 
          } else {
            effdata *= dataTrkEff_neg.getEff(mu1->eta, mu1->pt); 
            effmc   *= zmmTrkEff_neg.getEff(mu1->eta, mu1->pt); 
          }
          if(mu2->q>0) {
            effdata *= dataTrkEff_pos.getEff(mu2->eta, mu2->pt); 
            effmc   *= zmmTrkEff_pos.getEff(mu2->eta, mu2->pt);
          } else {
            effdata *= dataTrkEff_neg.getEff(mu2->eta, mu2->pt); 
            effmc   *= zmmTrkEff_neg.getEff(mu2->eta, mu2->pt);
          }
          //corr *= effdata/effmc;
	  
	  // scale factor uncertainties                                                                                                                                         
	  // TRACKER
          if(mu1->q>0) {
            Double_t effdata = dataTrkEff_pos.getEff(mu1->eta, mu1->pt);
            Double_t errdata = TMath::Max(dataTrkEff_pos.getErrLow(mu1->eta, mu1->pt), dataTrkEff_pos.getErrHigh(mu1->eta, mu1->pt));
            Double_t effmc   = zmmTrkEff_pos.getEff(mu1->eta, mu1->pt);
            Double_t errmc   = TMath::Max(zmmTrkEff_pos.getErrLow(mu1->eta, mu1->pt), zmmTrkEff_pos.getErrHigh(mu1->eta, mu1->pt));
            Double_t errTrk = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hTrkErr_pos->Fill(mu1->eta, mu1->pt, errTrk);
          } else {
            Double_t effdata = dataTrkEff_neg.getEff(mu1->eta, mu1->pt);
            Double_t errdata = TMath::Max(dataTrkEff_neg.getErrLow(mu1->eta, mu1->pt), dataTrkEff_neg.getErrHigh(mu1->eta, mu1->pt));
            Double_t effmc   = zmmTrkEff_neg.getEff(mu1->eta, mu1->pt);
            Double_t errmc   = TMath::Max(zmmTrkEff_neg.getErrLow(mu1->eta, mu1->pt), zmmTrkEff_neg.getErrHigh(mu1->eta, mu1->pt));
            Double_t errTrk = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hTrkErr_neg->Fill(mu1->eta, mu1->pt, errTrk);
          }

          if(mu2->q>0) {
            Double_t effdata = dataTrkEff_pos.getEff(mu2->eta, mu2->pt);
            Double_t errdata = TMath::Max(dataTrkEff_pos.getErrLow(mu2->eta, mu2->pt), dataTrkEff_pos.getErrHigh(mu2->eta, mu2->pt));
            Double_t effmc   = zmmTrkEff_pos.getEff(mu2->eta, mu2->pt);
            Double_t errmc   = TMath::Max(zmmTrkEff_pos.getErrLow(mu2->eta, mu2->pt), zmmTrkEff_pos.getErrHigh(mu2->eta, mu2->pt));
            Double_t errTrk = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
	    /*   if(mu2->eta>1.2 && mu2->eta<2.1) 
	      {
		errTrk=0.0013;
		}*/
            hTrkErr_pos->Fill(mu2->eta, mu2->pt, errTrk);
          } else {
            Double_t effdata = dataTrkEff_neg.getEff(mu2->eta, mu2->pt);
            Double_t errdata = TMath::Max(dataTrkEff_neg.getErrLow(mu2->eta, mu2->pt), dataTrkEff_neg.getErrHigh(mu2->eta, mu2->pt));
            Double_t effmc   = zmmTrkEff_neg.getEff(mu2->eta, mu2->pt);
            Double_t errmc   = TMath::Max(zmmTrkEff_neg.getErrLow(mu2->eta, mu2->pt), zmmTrkEff_neg.getErrHigh(mu2->eta, mu2->pt));
            Double_t errTrk = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
	    /*  if(mu2->eta>1.2 && mu2->eta<2.1) 
	      {
		errTrk=0.0013;
	      }
	      hTrkErr_neg->Fill(mu2->eta, mu2->pt, errTrk);*/
          }
	  // STANDALONE
          if(mu1->q>0) {
            Double_t effdata = dataStaEff_pos.getEff(mu1->eta, mu1->pt);
            Double_t errdata = TMath::Max(dataStaEff_pos.getErrLow(mu1->eta, mu1->pt), dataStaEff_pos.getErrHigh(mu1->eta, mu1->pt));
            Double_t effmc   = zmmStaEff_pos.getEff(mu1->eta, mu1->pt);
            Double_t errmc   = TMath::Max(zmmStaEff_pos.getErrLow(mu1->eta, mu1->pt), zmmStaEff_pos.getErrHigh(mu1->eta, mu1->pt));
            Double_t errSta = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hStaErr_pos->Fill(mu1->eta, mu1->pt, errSta);
          } else {
            Double_t effdata = dataStaEff_neg.getEff(mu1->eta, mu1->pt);
            Double_t errdata = TMath::Max(dataStaEff_neg.getErrLow(mu1->eta, mu1->pt), dataStaEff_neg.getErrHigh(mu1->eta, mu1->pt));
            Double_t effmc   = zmmStaEff_neg.getEff(mu1->eta, mu1->pt);
            Double_t errmc   = TMath::Max(zmmStaEff_neg.getErrLow(mu1->eta, mu1->pt), zmmStaEff_neg.getErrHigh(mu1->eta, mu1->pt));
            Double_t errSta = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hStaErr_neg->Fill(mu1->eta, mu1->pt, errSta);
          }

          if(mu2->q>0) {
            Double_t effdata = dataStaEff_pos.getEff(mu2->eta, mu2->pt);
            Double_t errdata = TMath::Max(dataStaEff_pos.getErrLow(mu2->eta, mu2->pt), dataStaEff_pos.getErrHigh(mu2->eta, mu2->pt));
            Double_t effmc   = zmmStaEff_pos.getEff(mu2->eta, mu2->pt);
            Double_t errmc   = TMath::Max(zmmStaEff_pos.getErrLow(mu2->eta, mu2->pt), zmmStaEff_pos.getErrHigh(mu2->eta, mu2->pt));
            Double_t errSta = ((effdata/effmc))*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hStaErr_pos->Fill(mu2->eta, mu2->pt, errSta);
          } else {
            Double_t effdata = dataStaEff_neg.getEff(mu2->eta, mu2->pt);
            Double_t errdata = TMath::Max(dataStaEff_neg.getErrLow(mu2->eta, mu2->pt), dataStaEff_neg.getErrHigh(mu2->eta, mu2->pt));
            Double_t effmc   = zmmStaEff_neg.getEff(mu2->eta, mu2->pt);
            Double_t errmc   = TMath::Max(zmmStaEff_neg.getErrLow(mu2->eta, mu2->pt), zmmStaEff_neg.getErrHigh(mu2->eta, mu2->pt));
            Double_t errSta = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hStaErr_neg->Fill(mu2->eta, mu2->pt, errSta);
	  }

	  // SELECTION
          if(mu1->q>0) {
            Double_t effdata = dataSelEff_pos.getEff(mu1->eta, mu1->pt);
            Double_t errdata = TMath::Max(dataSelEff_pos.getErrLow(mu1->eta, mu1->pt), dataSelEff_pos.getErrHigh(mu1->eta, mu1->pt));
            Double_t effmc   = zmmSelEff_pos.getEff(mu1->eta, mu1->pt);
            Double_t errmc   = TMath::Max(zmmSelEff_pos.getErrLow(mu1->eta, mu1->pt), zmmSelEff_pos.getErrHigh(mu1->eta, mu1->pt));
            Double_t errSel = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hSelErr_pos->Fill(mu1->eta, mu1->pt, errSel);
          } else {
            Double_t effdata = dataSelEff_neg.getEff(mu1->eta, mu1->pt);
            Double_t errdata = TMath::Max(dataSelEff_neg.getErrLow(mu1->eta, mu1->pt), dataSelEff_neg.getErrHigh(mu1->eta, mu1->pt));
            Double_t effmc   = zmmSelEff_neg.getEff(mu1->eta, mu1->pt);
            Double_t errmc   = TMath::Max(zmmSelEff_neg.getErrLow(mu1->eta, mu1->pt), zmmSelEff_neg.getErrHigh(mu1->eta, mu1->pt));
            Double_t errSel = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hSelErr_neg->Fill(mu1->eta, mu1->pt, errSel);
          }

          if(mu2->q>0) {
            Double_t effdata = dataSelEff_pos.getEff(mu2->eta, mu2->pt);
            Double_t errdata = TMath::Max(dataSelEff_pos.getErrLow(mu2->eta, mu2->pt), dataSelEff_pos.getErrHigh(mu2->eta, mu2->pt));
            Double_t effmc   = zmmSelEff_pos.getEff(mu2->eta, mu2->pt);
            Double_t errmc   = TMath::Max(zmmSelEff_pos.getErrLow(mu2->eta, mu2->pt), zmmSelEff_pos.getErrHigh(mu2->eta, mu2->pt));
            Double_t errSel = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hSelErr_pos->Fill(mu2->eta, mu2->pt, errSel);
          } else {
            Double_t effdata = dataSelEff_neg.getEff(mu2->eta, mu2->pt);
            Double_t errdata = TMath::Max(dataSelEff_neg.getErrLow(mu2->eta, mu2->pt), dataSelEff_neg.getErrHigh(mu2->eta, mu2->pt));
            Double_t effmc   = zmmSelEff_neg.getEff(mu2->eta, mu2->pt);
            Double_t errmc   = TMath::Max(zmmSelEff_neg.getErrLow(mu2->eta, mu2->pt), zmmSelEff_neg.getErrHigh(mu2->eta, mu2->pt));
            Double_t errSel = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hSelErr_neg->Fill(mu2->eta, mu2->pt, errSel);
	  }

	  //HLT
          if(mu1->q>0) {
            Double_t effdata = dataHLTEff_pos.getEff(mu1->eta, mu1->pt);
            Double_t errdata = TMath::Max(dataHLTEff_pos.getErrLow(mu1->eta, mu1->pt), dataHLTEff_pos.getErrHigh(mu1->eta, mu1->pt));
            Double_t effmc   = zmmHLTEff_pos.getEff(mu1->eta, mu1->pt);
            Double_t errmc   = TMath::Max(zmmHLTEff_pos.getErrLow(mu1->eta, mu1->pt), zmmHLTEff_pos.getErrHigh(mu1->eta, mu1->pt));
            Double_t errHLT = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hHLTErr_pos->Fill(mu1->eta, mu1->pt, errHLT);
          } else {
            Double_t effdata = dataHLTEff_neg.getEff(mu1->eta, mu1->pt);
            Double_t errdata = TMath::Max(dataHLTEff_neg.getErrLow(mu1->eta, mu1->pt), dataHLTEff_neg.getErrHigh(mu1->eta, mu1->pt));
            Double_t effmc   = zmmHLTEff_neg.getEff(mu1->eta, mu1->pt);
            Double_t errmc   = TMath::Max(zmmHLTEff_neg.getErrLow(mu1->eta, mu1->pt), zmmHLTEff_neg.getErrHigh(mu1->eta, mu1->pt));
            Double_t errHLT = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hHLTErr_neg->Fill(mu1->eta, mu1->pt, errHLT);
          }

          if(mu2->q>0) {
            Double_t effdata = dataHLTEff_pos.getEff(mu2->eta, mu2->pt);
            Double_t errdata = TMath::Max(dataHLTEff_pos.getErrLow(mu2->eta, mu2->pt), dataHLTEff_pos.getErrHigh(mu2->eta, mu2->pt));
            Double_t effmc   = zmmHLTEff_pos.getEff(mu2->eta, mu2->pt);
            Double_t errmc   = TMath::Max(zmmHLTEff_pos.getErrLow(mu2->eta, mu2->pt), zmmHLTEff_pos.getErrHigh(mu2->eta, mu2->pt));
            Double_t errHLT = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hHLTErr_pos->Fill(mu2->eta, mu2->pt, errHLT);
          } else {
            Double_t effdata = dataHLTEff_neg.getEff(mu2->eta, mu2->pt);
            Double_t errdata = TMath::Max(dataHLTEff_neg.getErrLow(mu2->eta, mu2->pt), dataHLTEff_neg.getErrHigh(mu2->eta, mu2->pt));
            Double_t effmc   = zmmHLTEff_neg.getEff(mu2->eta, mu2->pt);
            Double_t errmc   = TMath::Max(zmmHLTEff_neg.getErrLow(mu2->eta, mu2->pt), zmmHLTEff_neg.getErrHigh(mu2->eta, mu2->pt));
            Double_t errHLT = (effdata/effmc)*sqrt(errdata*errdata/effdata/effdata + errmc*errmc/effmc/effmc);
            hHLTErr_neg->Fill(mu2->eta, mu2->pt, errHLT);
          }
	  
	  nSelv[ifile]    +=weight;
	  nSelCorrv[ifile]+=weight*corr;
	  nSelCorrVarv[ifile]+=weight*weight*corr*corr;
        }
      }      
    }

    Double_t var=0;
    for(Int_t iy=0; iy<=hHLTErr_pos->GetNbinsY(); iy++) {
      for(Int_t ix=0; ix<=hHLTErr_pos->GetNbinsX(); ix++) {
        Double_t err=hHLTErr_pos->GetBinContent(ix,iy);
        var+=err*err;
      }
    }
    for(Int_t iy=0; iy<=hHLTErr_neg->GetNbinsY(); iy++) {
      for(Int_t ix=0; ix<=hHLTErr_neg->GetNbinsX(); ix++) {
        Double_t err=hHLTErr_neg->GetBinContent(ix,iy);
        var+=err*err;
      }
    }
    for(Int_t iy=0; iy<=hSelErr_pos->GetNbinsY(); iy++) {
      for(Int_t ix=0; ix<=hSelErr_pos->GetNbinsX(); ix++) {
        Double_t err=hSelErr_pos->GetBinContent(ix,iy);
        var+=err*err;
      }
    }
    for(Int_t iy=0; iy<=hSelErr_neg->GetNbinsY(); iy++) {
      for(Int_t ix=0; ix<=hSelErr_neg->GetNbinsX(); ix++) {
        Double_t err=hSelErr_neg->GetBinContent(ix,iy);
        var+=err*err;
      }
    }
    for(Int_t iy=0; iy<=hTrkErr_pos->GetNbinsY(); iy++) {
      for(Int_t ix=0; ix<=hTrkErr_pos->GetNbinsX(); ix++) {
        Double_t err=hTrkErr_pos->GetBinContent(ix,iy);
        //var+=err*err;
	var+=0.0;
      }
    }
    for(Int_t iy=0; iy<=hTrkErr_neg->GetNbinsY(); iy++) {
      for(Int_t ix=0; ix<=hTrkErr_neg->GetNbinsX(); ix++) {
        Double_t err=hTrkErr_neg->GetBinContent(ix,iy);
	var+=0.0;
        //var+=err*err;
      }
    }
    for(Int_t iy=0; iy<=hStaErr_pos->GetNbinsY(); iy++) {
      for(Int_t ix=0; ix<=hStaErr_pos->GetNbinsX(); ix++) {
        Double_t err=hStaErr_pos->GetBinContent(ix,iy);
	var+=err*err;
      }
    }
    for(Int_t iy=0; iy<=hStaErr_neg->GetNbinsY(); iy++) {
      for(Int_t ix=0; ix<=hStaErr_neg->GetNbinsX(); ix++) {
        Double_t err=hStaErr_neg->GetBinContent(ix,iy);
	var+=err*err;
      }
    }

    nSelCorrVarv[ifile]+=var;

    // compute acceptances
    accv.push_back(nSelv[ifile]/nEvtsv[ifile]);     accErrv.push_back(accv[ifile]*sqrt((1.+accv[ifile])/nEvtsv[ifile]));
    accCorrv.push_back(nSelCorrv[ifile]/nEvtsv[ifile]); accErrCorrv.push_back(accCorrv[ifile]*sqrt((nSelCorrVarv[ifile])/(nSelCorrv[ifile]*nSelCorrv[ifile]) + 1./nEvtsv[ifile]));
    
    delete infile;
    infile=0, eventTree=0;  
  }  
  delete info;
  delete gen;
  delete muonArr;

    
  //--------------------------------------------------------------------------------------------------------------
  // Output
  //==============================================================================================================    
  cout << "*" << endl;
  cout << "* SUMMARY" << endl;
  cout << "*--------------------------------------------------" << endl;
  cout << " Z -> mu mu" << endl;
  cout << "  Mass window: [" << MASS_LOW << ", " << MASS_HIGH << "]" << endl;
  cout << "  pT > " << PT_CUT << endl;
  cout << "  |eta| < " << ETA_CUT << endl;
  cout << endl;
  
  for(UInt_t ifile=0; ifile<fnamev.size(); ifile++) {
    cout << "   ================================================" << endl;
    cout << "    Label: " << labelv[ifile] << endl;
    cout << "     File: " << fnamev[ifile] << endl;
    cout << endl;
    cout << "    *** Acceptance ***" << endl;
    cout << "          nominal: " << setw(12) << nSelv[ifile]   << " / " << nEvtsv[ifile] << " = " << accv[ifile]   << " +/- " << accErrv[ifile] << endl;
    cout << "     SF corrected: " << accCorrv[ifile] << " +/- " << accErrCorrv[ifile] << endl;
    cout << endl;
  }
  
  char txtfname[100];
  sprintf(txtfname,"%s/binned.txt",outputDir.Data());
  ofstream txtfile;
  txtfile.open(txtfname);
  txtfile << "*" << endl;
  txtfile << "* SUMMARY" << endl;
  txtfile << "*--------------------------------------------------" << endl;
  txtfile << " Z -> mu mu" << endl;
  txtfile << "  Mass window: [" << MASS_LOW << ", " << MASS_HIGH << "]" << endl;
  txtfile << "  pT > " << PT_CUT << endl;
  txtfile << "  |eta| < " << ETA_CUT << endl;
  txtfile << endl;
  
  for(UInt_t ifile=0; ifile<fnamev.size(); ifile++) {
    txtfile << "   ================================================" << endl;
    txtfile << "    Label: " << labelv[ifile] << endl;
    txtfile << "     File: " << fnamev[ifile] << endl;
    txtfile << endl;
    txtfile << "    *** Acceptance ***" << endl;
    txtfile << "          nominal: " << setw(12) << nSelv[ifile]   << " / " << nEvtsv[ifile] << " = " << accv[ifile]   << " +/- " << accErrv[ifile] << endl;
    txtfile << "     SF corrected: " << accCorrv[ifile] << " +/- " << accErrCorrv[ifile] << endl;
    txtfile << endl;
  }
  txtfile.close();
  
  cout << endl;
  cout << "  <> Output saved in " << outputDir << "/" << endl;    
  cout << endl;  
      
  gBenchmark->Show("computeAccSelZmmBinned"); 
}