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Title:Long-range Polarization Model Of Vibrational Autoionization In Rydberg States Of Nitric Oxide
Author(s):Barnum, Timothy J
Contributor(s):Field, Robert W; Coy, Stephen L; Clausen, Gloria
Subject(s):Comparing theory and experiment
Abstract:In high angular momentum ($\ell \geq 3$) Rydberg states, the centrifugal barrier hinders close approach of the Rydberg electron to the ion-core. As a result, these core-nonpenetrating Rydberg states can be well described by a simplified model in which the Rydberg electron is only perturbed by the long-range electric properties of the ion-core. We have developed a long-range model to describe the vibrational autoionization dynamics of high-$\ell$ Rydberg states of nitric oxide. In particular, our model explains the extensive angular momentum exchange between the ion-core and Rydberg electron previously observed in vibrational autoionization of $nf$ Rydberg states. In addition, we have measured total decay lifetimes of $ng$ Rydberg states and find that the decay of $ng$ states is dominated by autoionization rather than predissociation. We examine the predicted ion rotational state distributions generated by vibrational autoionization of $ng$ states and discuss a potential application in the production of quantum state-selected molecular ions.
Issue Date:2021-06-22
Publisher:International Symposium on Molecular Spectroscopy
Genre:Conference Paper / Presentation
Date Available in IDEALS:2021-09-24

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