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JetMET Prompt Analysis on run Express stream 123615.

JetMET Prompt Analysis on run Express stream 123615. I ran a skim selecting only l1 trigger bits 40 and 41 on the PromptReco for run 123615. I show you the plots for events that passed this (very raw and approximative) selection for the vertex: # tracks used in the vertex>1 vertexChi2/Ndof <5

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JetMET Prompt Analysis on run Express stream 123615.

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  1. JetMET Prompt Analysis on run Express stream 123615. I ran a skim selecting only l1 trigger bits 40 and 41 on the PromptReco for run 123615. I show you the plots for events that passed this (very raw and approximative) selection for the vertex: # tracks used in the vertex>1 vertexChi2/Ndof <5 abs(vertex z)<20 cm

  2. all jets (anti-kt5)

  3. all jets (anti-kt5) with pT>8. GeV When having to add a lower pT cut, I use 8GeV, which, following the discussions on JEC corrections from last week, was roughly corresponding to 20 GeV corrected. I see now that there are new JEC corrections, the cut could be a bit higher: https://hypernews.cern.ch/HyperNews/CMS/get/JetMET/711.html

  4. All jets (anti-kt5) with pT>8. GeV and passing the JetID loose cuts: 11 of them survive Looked one by one into the events with jets surviving these cuts. Apart from the dijet candidate in event 6732761, nothing very interesting (apart from the fact that they make me realize we should really use the re-reco samples as soon as we can, sometimes the tracks here look very weird!)

  5. Number of jets per event for ALL jets

  6. Number of jets per event for jets with pT>8 GeV

  7. Number of jets per event for jets with pT>8 GeV and JeitID loose

  8. Number of constituents per jet for jets with pT>8 GeV

  9. Number of constituents per jet for jets with pT>8 GeV and loose JetID

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