Evidence from PETRA adds support for QCD and gluons
FEB 01, 1980
DOI: 10.1063/1.2913931
Over the past several years a theory of the strong interactions known as quantum chromodynamics has been developing. This theory assumes the existence of fractionally charged quarks of spin 1/2 and that the force between the quarks is carried by a gluon, a massless spin‐1 quantum. Like the quark, it is widely believed that the gluon is not directly observable.
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© 1980 American Institute of Physics
