How a Proton Keeps Its Shape
The proton isn't a solid ball; it's more like a tight tangle of quarks and gluons. Gluons are the particles that carry the strong force — a kind of glue that holds quarks together. But this glue doesn't just connect; it presses.
In the J/ψ-007 experiment at Jefferson Lab, a beam of photons was aimed at protons.