Theoretical calculations predict a complex excited state (0+) for helium-4 (4He) at the 20.21 MeV energy level. This state involves a coupling of three cluster configurations: hydrogen-3 and a proton, ...

Maths is something you either love or hate; in school, you either enjoyed poring over complicated equations or feared the very prospect. If you aren’t a maths whiz, don’t worry. There are excellent ...