An artist’s impression shows two translucent orbs, which represent tin nuclei, colliding and shattering in a shower of colorful shards. Amidst these shards, which represent protons, neutrons and their clusters, is a single pion, shown as another translucent sphere with two smaller spheres, representing quarks, inside. Credit: Erin O’Donnell/Facility for Rare Isotope Beams…

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