Yuval Ne'eman (1925 - 2006) and Murray Gell-Mann (1929 - 2019)
Yuval Ne'eman (1925 - 2006) and Murray Gell-Mann (1929 - 2019) |
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The Ω- is the classic
example of why physicists had to invent color. It has spin 3/2
and consists of three identical s quarks, in an s-state. Thus in
order to have an antisymmetric state function, each quark must
have a different color, and the color state is the only part of
the state that is antisymmetric. Color is the key to the
theory of the strong interaction, which is called QCD (Quantum
Chromodynamics). The diagram shows all the least-massive
baryons with J = 3/2.
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