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Use relative tracker isolation < 0.1 same as Z'->mumu analysis but remove 2nd lepton contribution

Code Block
//cd trkmuTrkIso
isoroot with-b a 2nd muon/electron veto
          for( int k = 0; k < nTT; k-q muonIso.C++ )# {produce output of histograms 
        if( track_pT[k] < _ptCut ) continue;
            double tmpDr = deltaR(muon_eta[j], muon_phi[j], track_eta[k], track_phi[k]);
            if( tmpDr < 0.3 ) {
              muon_trkiso[j] -= track_pT[k];
              if( muon_trkiso[j] < 0 ) muon_trkiso[j] = 0;
            }
          }
          for( int k = 0; k < nelec; k++ ) {
            double tmpDr = deltaR(muon_eta[j], muon_phi[j], elec_gsfEta[k], elec_gsfPhi[k]);
            if( tmpDr < 0.3 ) {
              muon_trkiso[j] -= elec_gsfPt[k];
              if( muon_trkiso[j] < 0 ) muon_trkiso[j] = 0;
            }
          }
          double _muIso = (muon_trkiso[j])/muon_cktpt[j];

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root effMuon.C # produce comparison plot among original trk iso, PF iso, and trk iso with a veto of 2nd lepton in AN note

Muon selection efficiency

Background estimation

Mass resolution

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