Tau Neutrino at Fermilab
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|The 50-foot-long DONUT detector recorded six million potential interactions.
The crucial component is the three-foot-long target station, which contains
emulsion to record particle tracks, in particular the tracks of tau
leptons. To reduce the data to about 1000 candidate neutrino events, other
parts of the detector provided important information. They allowed
scientists to locate promising tracks in the emulsion to within a few
millimeters. These small emulsion areas then underwent careful analysis,
eventually leading to the identification of five tau neutrino events.
|last modified 1/16/2002 email Fermilab|