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. Credit: Forschungszentrum Jülich/SeitenPlan CC BY 4.0
This annotated image labels several features in the simulation, including the event horizon of the black hole. NASA’s Goddard Space Flight Center
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