Well done, this is an e^- `+` e⁺ `->` Z⁰ `->` mu^- `+` mu⁺ `+` gamma event.

The red and yellow tracks leave hits in the muon chambers
The gamma ray does not leave a track in the inner part of the detector as it is uncharged
It shows up as it loses its energy in the electromagnetic calorimeter
Continue with the quiz

http://hepwww.rl.ac.uk/WIRED/native-1.0/quiz/4-3.html last modified on 10th July 1998 by Alastair Wilson for

Tim Adye, <T.J.Adye@rl.ac.uk>

Well done, this is an e- + e+ -> Z0 -> mu- + mu+ + gamma event.