Online event display images of first multihadron at 130 GeV centre-of-mass energy: greyscale r-phi, r-z; colour r-phi, r-z
Online event display pictures of the first OPAL MH with the jet chamber at full operating voltage, at 130 GeV centre-of-mass energy: colour r-phi, r-z
Online event display pictures of a multihadron from the first data taken at 140 GeV centre-of-mass energy: colour r-phi, r-z
Here is a q-qbar event at 130 GeV. However, many events radiatively return to the Z0 peak by emitting a photon. Here are two views of such an event end view and side view.
Here are two examples of gluon emission in non-radiative and radiative events.
Here are examples of a non-radiative muon pair, a radiative muon pair and a radiative tau pair event. The next event is a radiative neutrino pair event, for which the signature is a single energetic photon in the detector.
The next event shows a three photon final state.
Finally we show several examples of four-fermion production, mu-mu-q-qbar, event 1, in which the two muons form a Z0, and events 2 and 3 in which the hadronic system forms a Z0. The muons are highlighted in red. A final 4-fermion event shows e+e-qq production (the electrons in red).