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Forschungszentrum Juelich

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For a long time, physicists were only able to reliably verify two different classes of hadrons: baryons and mesons. Experiments performed at Jülich's accelerator COSY have now shown that, in fact, another class of exotic particles made up of six quarks exists.

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Source: Forschungszentrum J&#252;lich/SeitenPlan (<a target="_blank"href="http://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>)

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