title: Photofragmentation, state interaction, and energetics of Rydberg and ion-pair states: resonance enhanced multiphoton ionization of HI.
abstract: Mass resolved resonance enhanced multiphoton ionization data for hydrogen iodide (HI), for two-photon resonance excitation to Rydberg and ion-pair states in the 69,600-72,400 cm(-1) region were recorded and analyzed. Spectral perturbations due to homogeneous and heterogeneous interactions between Rydberg and ion-pair states, showing as deformations in line-positions, line-intensities, and line-widths, were focused on. Parameters relevant to photodissociation processes, state interaction strengths and spectroscopic parameters for deperturbed states were derived. Overall interaction and dynamical schemes to describe the observations are proposed.
authors.affiliation: Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavík, Iceland.
authors.forename: Helgi Rafn
authors.initials: HR
authors.lastname: Hróðmarsson
authors.affiliation: Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavík, Iceland.
authors.forename: Huasheng
authors.initials: H
authors.lastname: Wang
authors.affiliation: Science Institute, University of Iceland, Dunhagi 3, 107 Reykjavík, Iceland.
authors.forename: Ágúst
authors.initials: Á
authors.lastname: Kvaran