Variational calculations of muonic-molecule energy levels

Abstract
We report the best variational energies obtained to date of the bound states of muonic molecules containing nucleons of unit charge, or isotopes of hydrogen. Hylleraas wave functions are used to describe the three-particle systems, and the convergence of the energies is carefully studied; as many as 440 terms have been included in some cases. These results are compared with the best previous values.