The Z0 particle decays to three jets

An electron-positron collision produces a Z0 particle that decays into a quark and an antiquark, one of which emits a gluon. Real data from LEP in 1991 (Image: LEP/CERN)

This track is an example of real data collected from the L3 detector on the Large Electron-Positron (LEP) collider at CERN, which ran between 1989 and 2000. Both quarks and gluons appear in the detector as jets of hadrons.

For more information about this image visit the CERN Document Server.