Welcome to CHORUS

In the CHORUS experiment, we analyse the interactions of a pure neutrino beam of a particular type (the muon neutrino) generated by the big CERN SPS accelerator. Our detector has an extremely high sensitivity to detect the presence of another type of neutrino (the tau neutrino), which would be a sign of neutrino oscillation. If we observe positive evidence of neutrino oscillations in CHORUS, we can deduce the tau neutrino mass. This will be a great discovery and have a profound impact on particle physics, astrophysics and cosmology.

  • Description of some specific techniques used by CHORUS
  • The scientific context of the CHORUS experiment
  • For a full illustrated story about CHORUS, get our video film(out of stock but available in French, Italian and German). Available at the CHORUS secretariat
  • People and pictures
  • Related links
  • Contacts