ARGUS (experiment)

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The metal red chassis of the ARGUS detector exposed in a dedicated glass hall
The ARGUS detector at DESY research facility, exposed as an exhibit after decommissioning.

ARGUS (A Russian-German-United States-Swedish Collaboration; later joined by Canada and the former Yugoslavia) was a particle physics experiment that ran at the electron-positron collider ring DORIS II at DESY. Its aim was to explore properties of charm and bottom quarks. Its construction started in 1979, the detector was commissioned in 1982 and operated till 1992.[1]

The ARGUS detector was a hermetic detector with 90% coverage of the full solid angle. It had drift chambers, a time-of-flight system, an electromagnetic calorimeter and a muon chamber system.[2]

It is the first experiment that observed the mixing of the B mesons (in 1987).[3] The ARGUS distribution is named after the experiment.

External links[edit]

  • Webpage of ARGUS Fest, a symposium to commemorate the 20th anniversary of the discovery of B-meson oscillations. (Last accessed on Sept. 10, 2007)


  1. ^ ARGUS Fact Sheet, exposed in the detector hall at DESY
  2. ^ The ARGUS Collaboration, H. Albrecht et al., Nucl. Instrum. Methods A 275 1 (1989), p. 1-48.
  3. ^ ARGUS Collaboration, DESY preprint 87-029, April 1987. Published in Phys.Lett.B192:245,1987.