CALCULATED RO-VIBRATIONAL FINE-STRUCTURE SPECTRUM AND WEAK-FIELD ZEEMAN SPLI-ITINGS OF THE 0,Ar VAN DER WAALS MOLECULE

Ro-vibrational alculations are performed on OzAr explicitly including coupling to the O2 elrcuonic spin. Two dlfisrm empirical potentials are used and give similar fine-structure spectra. The anisotropy in the potential is found IO strongly perturb-the 0, fine-structure spectrum suggesting that the 02Ar fine-srrucIurc spectrum can give detailed information about the anisotropy of the van der Waals interaction porential. Transition srreneths for the complex fins-structure transitions are calculated and found to vary by two orders of magnitude. The Zeeman splitting of the Isvcls hy inwracCm with a xv& magnetic field is also calculated.