Dispersive photoelectron spectra and constant-initial- (ionic-) state spectra are presented for the known band systems of jet-cooled ${\mathrm{Xe}}_2$ that dissociate to Xe${(}^1$${\mathit{S}}_0$)+Xe*(6p,5d) between approximately 74 627 and 80 849 ${\mathrm{cm}}^{\mathrm{-}1}$. In many instances, the dominant molecular ion-core assignment for each gerade Rydberg state deduced from the photoelectron data agrees well with predictions made from angular momentum arguments. Differences are attributed to either local excited-state homogeneous perturbations or strong predissociation. © 1996 The American Physical Society.

• Received 14 May 1996

DOI:https://doi.org/10.1103/PhysRevA.54.2814