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Particle and nuclear

Particle and nuclear

Charmonium’s onion-like structure is revealed by new calculations

05 Jul 2024
Charmonium illustration
Quantum onion New calculations suggest that charmonium has a complicated layered structure that includes many virtual particles. (Courtesy: iStock/agsandrew)
Calculations by physicists in China and the US suggest that the charmonium meson has a distinct onio

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Andrey Feldman is a science writer based in Israel
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