The Bjorken-scaling

Bjorken scaling refers to a discovery in particle physics indicating that, at very high energies, the internal structure of protons and neutrons remains consistent when probed at different energy levels. This means that when scientists use energetic particles to look inside these particles, the patterns of their internal components—quarks and gluons—appear similar regardless of the probe's energy. It provided strong evidence that protons and neutrons are made up of smaller, point-like particles rather than being fundamental, indivisible entities. This insight was crucial for understanding the substructure of matter in the framework of quantum chromodynamics.