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What fundamental concept did Gell-Mann introduce regarding particles in Quantum Chromodynamics?

  • Confinement of quarks

  • Exclusion principle for quarks

  • Spin-statistics for quarks

  • Conservation of color charge

Answer

Confinement of quarks is the idea that quarks are always bound together inside composite particles such as protons and neutrons, and cannot exist in isolation. This is a consequence of the strong force, which is one of the four fundamental forces of nature. The strong force is very strong at short distances, but it falls off rapidly with distance.
The Magnificent Mind of Murray Gell-Mann: A Spectacular Quiz on the Life and Work of an American Physics Luminary

The Magnificent Mind of Murray Gell-Mann: A Spectacular Quiz on the Life and Work of an American Physics Luminary

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