Calculations for vibration-rotation levels of HD⁺, in particular for high N

Abstract

Nonadiabatic dissociation energies are calculated for 619 vibration-rotation levels of the ground electronic state of HD⁺ using a transformed Hamiltonian and an artificial-channels scattering method. In particular, coupling of rotational and electronic angular momenta is accounted for, so that levels with high N may be studied. Relativistic and radiative corrections are added to give dissociation energies, from which calculated transition energies may be compared with the experimentally available values; the agreement is good, in most cases to within experimental error (0·001 cm^-1).