Muonium (/ˈmjuːoʊniəm/) is an exotic atom made up of an antimuon and an electron, which was discovered in 1960 by Vernon W. Hughes and is given the chemical...

atom. For the onium of an electron and an antimuon, see muonium. In particle physics, true muonium is a theoretically predicted exotic atom representing...

lattice QCD are increasingly important tests of quantum chromodynamics. Muonium, despite its name, is not an onium containing a muon and an antimuon, because...

suffix when present), with one exception for "muonium"; a muon–antimuon bound pair is called "true muonium" to avoid confusion with old nomenclature. Positronium...

Unlike muonium, positronium does not have a nucleus analogue, because the electron and the positron have equal masses. Consequently, while muonium tends...

e+ ), muonium ( e−   μ+ ), and "true muonium" ( μ−   μ+ ). Of these positronium and muonium have been experimentally observed, while "true muonium" remains...

Because muons decay with lifetime 2.2 µs, muonium is too unstable to exhibit observable chemistry. Nevertheless, muonium compounds are important test cases for...

other systems, such as positronium (an electron orbiting a positron) and muonium (an electron orbiting an anti-muon) by using the reduced mass of the system...

Antihydrogen Antihelium Onia Antiprotonic hydrogen Antiprotonic helium Muonium True muonium Pionium Positronium Quarkonium Concepts and phenomena Annihilation...

Antihydrogen Antihelium Onia Antiprotonic hydrogen Antiprotonic helium Muonium True muonium Pionium Positronium Quarkonium Concepts and phenomena Annihilation...