Example analysis used for the Awesome Workshop: Glossary

Key Points

  • Example analysis used as common baseline for learning the technologies discussed at the workshop

  • This analysis studies decays of a Higgs boson into two tau leptons in the final state of a muon lepton and a hadronically decayed tau lepton

Physics background
  • Analysis studies Higgs boson decays to two tau leptons with a muon and a hadronic tau in the final state

  • The analysis estimates all processes but QCD directly from simulation

Step 1: Skim the initial datasets
  • We reduce the initial datasets by filtering suitable events and the selection of the interesting observables.

  • This step includes finding the interesting muon-tau pair in each selected event.

Step 2: Produce histograms
  • We produce histograms of all physics processes and all observables.

  • All histograms are produced in a signal region with opposite-signed muon-tau pairs and in a control region with same-signed pairs for the data-driven QCD estimate

Step 3: Make the plots
  • The plotting combines all histograms to produce estimates of the physical processes and create a figure with a physical meaning.

  • The plots show the share of the contributing physical processes to the data.

  • We do not include any systematic uncertainties in this example.

Step 4: Make a measurement
  • The measurement fits for the signal strength (multiplier of the Standard Model expectation) of the Z to two tau lepton process.

Final preparations
  • Run the analysis by yourself to understand the different steps.

  • Set up git and visit CERN GitLab.

  • Make two git repositories and add files to them.