Change search
ReferencesLink to record
Permanent link

Direct link
Electron-impact fragmentation of Cl-2(-)
Show others and affiliations
2005 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 72, no 4, 042708- p.Article in journal (Refereed) Published
Abstract [en]

A merged beam technique has been used to investigate the fragmentation of the Cl-2(-) ion in collisions with electrons over an energy range of 0-200 eV. We have measured absolute cross sections for detachment, detachment plus dissociation and dissociation processes. Over the energy range studied, the dominant breakup mechanism is dissociation. Dissociation is relatively enhanced in the e(-)+Cl-2(-) collision system due to the suppression of the normally dominant detachment process, as a result of the large difference between the equilibrium internuclear distances of the Cl-2 and Cl-2(-) ground state potential curves. A prominent structure is observed just above the threshold in the Cl-+Cl+e(-) dissociation channel. It is proposed that the structure is a resonance associated with production and rapid decay of an excited state of the doubly charged Cl-2(-) ion. A plausible mechanism for production of the di-anionic state based on an excitation plus capture process is suggested.

Place, publisher, year, edition, pages
2005. Vol. 72, no 4, 042708- p.
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-37869DOI: 10.1103/PhysRevA.72.042708ISI: 000232931800085ScopusID: 2-s2.0-28844466051OAI: diva2:435367
QC 20110818Available from: 2011-08-18 Created: 2011-08-18 Last updated: 2011-08-18Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Österdahl, Fabian
By organisation
In the same journal
Physical Review A. Atomic, Molecular, and Optical Physics
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 20 hits
ReferencesLink to record
Permanent link

Direct link