The Discovery of the Gluon

Abstract

Soon after the postulation of quarks, it was suggested that they interact via gluons, but direct experimental evidence was lacking for over a decade. In 1976, Mary Gaillard, Graham Ross and the author suggested searching for the gluon via 3-jet events due to gluon bremsstrahlung in $e^{+}{e}^{-}$ collisions. Following our suggestion, the gluon was discovered at DESY in 1979 by TASSO and the other experiments at the PETRA collider.

Comments: 11 pages, 2 figures, Contribution to the book `50 Years of Quarks' to be published by World Scientific