| Scientists can detect a tau neutrino only by identifying its
interaction with an atomic nucleus. This process creates a tau lepton, whose
track can be recorded using emulsion, a kind of three-dimensional
"photographic
film." The main signature of a tau lepton is a one-millimeter-long track
ending in a kink, indicating the decay of the tau lepton. The graphic below
shows the particle tracks of a tau neutrino event recorded by the DONUT
collaboration.
View diagram
The DONUT Detector
Creating a Tau Neutrino Beam
FermiNews issue about Fermilab's Fixed Target Program
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