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Selective negative-ion formation from core-valence doubly excited states of the water molecule
Stockholm University, Faculty of Science, Department of Physics.ORCID iD: 0000-0002-4603-2097
Stockholm University, Faculty of Science, Department of Physics.ORCID iD: 0000-0002-7023-2486
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Number of Authors: 72018 (English)In: Physical Review A: covering atomic, molecular, and optical physics and quantum information, ISSN 2469-9926, E-ISSN 2469-9934, Vol. 98, no 5, article id 053432Article in journal (Refereed) Published
Abstract [en]

This study focuses on the role of negative-ion formation in the decay of core-valence doubly excited water molecules. Combining negative- and positive-ion coincidence measurements with calculated energies of core-valence doubly excited states, we find that O- and H- production is enhanced selectively. In particular, we suggest that O- production is correlated to double occupancy of the antibonding 4a(1) virtual orbital, while H- appears at electronic states with double occupancy in 2b(2). We also show that H- and O- can be created as a result of electron recapture close to the O 1s ionization potential.

Place, publisher, year, edition, pages
2018. Vol. 98, no 5, article id 053432
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Physical Sciences
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URN: urn:nbn:se:su:diva-163617DOI: 10.1103/PhysRevA.98.053432ISI: 000451329500027OAI: oai:DiVA.org:su-163617DiVA, id: diva2:1276730
Available from: 2019-01-08 Created: 2019-01-08 Last updated: 2019-12-17Bibliographically approved

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