On the theory of the Stark shifts of the rotational–vibrational levels of the hydrogen molecule and its isotopes produced by a point charge. I: H2, D2, and T2

Abstract

The Hamiltonian describing the rotation and vibration of a homonuclear diatomic molecule in the field of a point charge at a fixed distance from its centre-of-mass is given. Numerical results for the Stark shift of the molecular levels due to a point charge of either sign are listed for H2, D2, and T2 as a function of the separation of the point charge from the molecule. The intensity associated with transitions between perturbed levels is discussed briefly.