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Can gluons exist in nature?

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According to QCD, only colorless objects may exist in isolation. Therefore, individual gluons and individual quarks cannot exist in nature, and only indirect evidence of their existence can be detected. In 1979, compelling evidence was found when quarks were shown to emit gluons during studies of particle collisions at the German national high-energy physics laboratory in Hamburg.

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Similar questions: What evidence is there of the existence of gluons? How do we know there are gluons? When were gluons first seen? Have gluons ever been seen? Where were gluons first seen? Is there evidence of gluons? [ Hide these questions ]

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