The reduced radiation loss enables the construction of circular colliders with much higher design energies than equivalent electron / positron colliders.
2.
Between 1897 and 1906, J . J . Thomson, the discoverer of the electron, proposed three equivalent electrons between each pair of carbon atoms in benzene.
3.
*For a general electronic configuration of " l k ", namely k equivalent electrons occupying one subshell, the general treatment and computer code could also be found in this paper.