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DTSTART:20160327T010000
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DTSTART:20161030T010000
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DTSTART;TZID=Europe/Rome:20160414T143000
DTEND;TZID=Europe/Rome:20160414T170000
DTSTAMP:20260616T011314
CREATED:20160331T200049Z
LAST-MODIFIED:20171026T123901Z
UID:2486-1460644200-1460653200@w3.lnf.infn.it
SUMMARY:Color and the Exclusion Principle
DESCRIPTION:In 1964 I showed that the exclusion principle\, which Wolfgang Pauli introduced for electrons in atomic physics\, plays an important role in the quark physics of hadrons. Gursey and Radicati placed the ground-state baryons in 56 of SU(6). In the naive quark model this is 3 quarks\, each in a 6 of SU(6)\, in a symmetric state. Since quarks are spin-1/2 particles the quarks should be in an antisymmetric state. To remedy that mismatch I suggested that the fermion quarks carry a new three-valued charge\, later called “color\,” and that the 56 of SU(6) should also be a singlet of the new SU(3)color . My insistence that the exclusion principle should be obeyed\, together with the work of Nambu and Han who gauged SU(3)color in 1965\, led to quantum chromodynamics\, which is now a central part of the standard model of particle physics.
URL:/event/color-and-the-exclusion-principle-2/
LOCATION:Auditorium B. Touschek\, Via Enrico Fermi\, 54\, Frascati\, Roma\, 00044\, Italia
CATEGORIES:Seminari generali
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