Indhold
Med den følgende øvelse kan du teste hvor godt du mestrer event identifikation. Derfor har vi valgt ti eksempler. De er lagret her på elektronisk form så du kan downloade dem. Ved de Internationale Masterclasses ligger de allerede på PC'ens skrivebord. De skal åbnes med programmet MINERVA (med "Read Event Locally").
Your task is to distinguish between signal and background events. Here, signal events are events, which produce exactly one W particle. After identifying a signal event, you can determine whether the W particle has decayed into an electron or positron and an (anti-)electron neutrino or into a muon or anti-muon, and a (anti-)muon neutrino. Events with jets, Z particles, and top-quark pairs are background events.
To identify an event you should respect certain selection criteria. You can find a summary of all selection criteria within the following flowchart:
You can check your results using the table below. For each event, choose which process you think is underlying the event. By clicking “Check”, you can find out if you identified the event correctly. By clicking “Correct Solutions”, you can see the correct answers.
Have fun doing the exercise!