Long-range Polarization Model Of Vibrational Autoionization In Rydberg States Of Nitric Oxide

Barnum, Timothy J

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https://hdl.handle.net/2142/111464 Copy

Description

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

Issue Date

2021-06-22

Keyword(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.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Permalink

http://hdl.handle.net/2142/111464

DOI

10.15278/isms.2021.TK13

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