--------------------------------------------------------------- Please fill out this form and send it to roger.wolf@desy.de --------------------------------------------------------------- Question a): Inspect the output of the file with the edmDumEventContent tool what are the collections that were saved to your PAT tuple? What collections will you actually make use of when analysing only the muons? Question b): What is the RMS of the difference Δpt, Δeta, Δphi between the globalMuon track and the standaloneMuon track of the muon system alone? Is there a resulting bias? Question c): What is the RMS of the the Z boson mass peak as reconstructed from the inner/outer tracker alone and from the globalMuon track? Exercise a): Answer question b) and c) with the following additional requirements on the muons: * isTrackerMuon==1 * isGlobalMuon==1 * innerTrack.numberOfValidHits>=11 * globalTrack.normalizedChi2<10.0 * globalTrack.hitPattern.numberOfValidMuonHits>0 * abs(dB)<0.02 * (trackIso+caloIso)/pt<0.05 This is a typical selection for isolated muons in top events. Do you expect changes? Exercise b): Check the influence of a shift of +5% and -5% on the pt of the reconstructed tags on the invariant mass of the Z boson candidate. Question d): What is the efficiency of the HLT_Mu9 trigger for isolated muons? Question e): At what pt does the efficiency curve exceed 80%?