ALEPH: Decay of Z0 to two jets

This track is an example of real data collected from the ALEPH detector on the Large Electron-Positron (LEP) collider at CERN, which ran between 1989 and 2000. Here a Z0 particle in the collision between an electron and positron, which then decays into a quark-antiquark pair. The quark pair is seen as a pair of hadron jets in the detector.