Observation of vibration-dependent electron anisotropy in O− photodetachment

Journal article

Authors / Editors

Mbaiwa, Foster

Research Areas

ENGINEERING AND TECHNOLOGY (Frascati classification)

Publication Details

Subtitle: Observation of vibration-dependent electron anisotropy in O− photodetachment

Author list: Mbaiwa, Foster

Publisher: American Physical Society

Publication year: 2010

Journal: Physical Review A (1050-2947)

ISSN: 1050-2947

eISSN: 1094-1622

URL: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.82.011401

Languages: English-United States (EN-US)

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Abstract

Photoelectron angular distributions (PADs) recorded for the O2(X 3Σ−g) ← O−2(X 2Πg) band show significant vibrational dependence. Experimental evidence of vibrational influence on the PAD has, to date, been sparse. Consequently, little attention has been paid to vibrational effects in the consideration of direct detachment processes by recent theoretical treatments. The results presented here demonstrate the sensitivity of the PAD to vibronic coupling in the anion ground electronic state, a phenomenon which is usually neglected in direct molecular anion photodetachment. These results provide the essential data for the evaluation and refinement of existing theoretical models.

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