Abstract

We have experimentally and theoretically studied the gerade Rydberg states of molecular hydrogen near the ionization limit, detecting ionization and dissociation separately. The spectra in this region show a rich variety of effects due to interactions between Rydberg series with different rotational and vibrational quantum numbers. The states which we have observed are all well described by Hund’s case (d) coupling. We discuss the spectroscopic and dynamic properties of the states as revealed by our experiment, and apply theoretical models to the simulation of several regions of the spectra. These models allowed us to deduce interseries couplings and relative dipole matrix elements, as well as the decay rates for some states.

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