Developed theory for the 3-quark model
Isgur received a BSc from the California Institute of Technology in Pasadena (1968), and a PhD from the University of Toronto (1974). He and co-workers studied strongly interacting subnuclear particles and showed that quantum chromo-dynamic forces are crucial to understanding quarks. In 1978, he and Gabriel Karl proposed the 3-quark model that is now the standard model of the proton and the neutron. He received the Steacie Prize (1986), the Herzberg Medal (1984), and the Rutherford Medal (1989).
Sources: Canadian Who’s Who 1993; Physics Today, November 1983
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