Positronium (Ps) is a system consisting of an electron and its anti-particle, a positron, bound together into an exotic atom, specifically an onium. Unlike...

Positronium hydride, or hydrogen positride is an exotic molecule consisting of a hydrogen atom bound to an exotic atom of positronium (that is a combination...

Di-positronium, or dipositronium, is an exotic molecule consisting of two atoms of positronium. It was predicted to exist in 1946 by John Archibald Wheeler...

contains one or more exotic atoms. Di-positronium, two bound positronium atoms Positronium hydride, a positronium atom bound to a hydrogen atom "Exotic...

positron in positronium can also have identical or parallel spin orientations, which results in an experimentally-distinct form of positronium with a spin 1...

example, the radius of positronium is approximately 2 a 0 {\displaystyle 2\,a_{0}} , since the reduced mass of the positronium system is half the electron...

energy levels of positronium yields α−1 = 137.034(16). Measurements of α can also be extracted from the positronium decay rate. Positronium decays through...

positronium. Positronium is a metastable hydrogen-like bound state of an electron and a positron which can exist in two spin states. Para-positronium...

it induces oscillations between positronium and mirror positronium. Positronium could then turn into mirror positronium and then decay into mirror photons...

scattering List of particles Meitner–Hupfeld effect Pair production Positronium L. Sodickson; W. Bowman; J. Stephenson; R. Weinstein (1970). "Single-Quantum...