Rotational structures of long-range diatomic molecules
Department of Physics and Astronomy, University of Toledo, Toledo, Ohio 43606, USA
Corresponding author: a email@example.com
Published online: 28 September 2004
We present a systematic understanding of the rotational structure of a long-range (vibrationally highly-excited) diatomic molecule. For example, we show that depending on a quantum defect, the least-bound vibrational state of a diatomic molecule with (n>2) asymptotic interaction can have only 1, 2, and up to a maximum of rotational levels. A classification scheme of diatomic molecules is proposed, in which each class has a distinctive rotational structure and corresponds to different atom-atom scattering properties above the dissociation limit.
PACS: 33.15.Mt – Rotation, vibration, and vibration-rotation constants / 34.10.+x – General theories and models of atomic and molecular collisions and interactions (including statistical theories, transition state, stochastic and trajectory models, etc.) / 03.75.Nt – Other Bose-Einstein condensation phenomena / 03.75.Ss – Degenerate Fermi gases
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2004