In part 4 events of the types you met in Parts 2 and 3 will
be mixed up together. So, first you have to decide whether the event you're
looking at is the type in which a matter particle-antiparticle pair has been
produced (like Part 2) or it is the type of event in which a
Event 31
Event 32
Event 33
Event 34
Event 35
Event 36
Event 37
Event 38
Event 39
Event 40
Here endeth the lab. Hand in your answers to the lab supervisor.