Exercise 2
With the following exercise, you can test how good your sense of event selection and particle identification is.
Therefore we have chosen ten examples of events which are stored here in electronic form for you to download. They have to be opened in the program HYPATIA (with “Read Event Locally”).
The picture gallery will guide you through this task.
- Di-lepton signal events are only events, where a Z boson, a J/ψ or Υ particles are produced. In signal events you also determine whether these particles have decayed into an electron-positron pair or into a muon-antimuon pair.
- Higgs candidate events contain either 2 photons or 2 pairs of leptons.
- Events with jets, W bosons, top-quark pairs and are background events.
You can check your results using the table below. For each event, choose which process you are seeing. By clicking “Confirm Task”, you can find out the number of events guessed correctly. By clicking “Correct Answers”, you can see the solution.
Good luck!