Abstract
The bound-state spectra of the positronium hydrides , TPs, DPs, , and MuPs are considered. The properties of the bound ground S states (L=0) in these systems and the molecule have been determined by extensive variational calculations. The hyperfine structure of these states is also investigated. The positron annihilation rates have been evaluated for the positronium hydrides, the molecule, and the ion and compared. The positron annihilation rates (where n⩾2) in the positronium hydrides are significantly closer to those in the ion (the three-body system) than in the molecule.
DOI:https://doi.org/10.1103/PhysRevA.55.2662
©1997 American Physical Society