Gerade electronic states of Xe2 observed using resonantly enhanced multiphoton ionization

The two photon resonant, three photon ionization spectrum of the rare gas dimer Xe2 was determined in the energy region of the Xe* 5d and 6p states. A number of new band systems were observed that arise from two photon transitions from the ground state to bound vibrational levels of excited states of gerade symmetry. The analysis of the observed vibronic structure of these band systems provides new information on the dissociation energies and the potential energy curves of the low-lying dipole forbidden excited states of Xe2