Plate 2: Two jets (quark and antiquark)
Plate 2: Photograph taken at CERN: Two jets emerge with equal and opposite momentum. Such events we interpret as the result of a quark plus an antiquark.
More about this image
Source: CERN-EX-9201024 DELPHI: Two-jet event
This image is © CERN, and its use requires prior authorization from CERN.
CERN describes this image as follows: "This track is an example of real data collected from the DELPHI detector on the Large Electron-Positron (LEP) collider at CERN, which ran between 1989 and 2000. Here a Z0 particle is produced 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."