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Title: Dissociative electron attachment to electronically excited CS2
Authors: Rangwala, S.A.
Kumar, S.V. K.
Krishnakumar, E.
Keywords: Dissociation and dissociative attachment by electron impact
Laser-modified scattering
Potential energy surfaces for excited electronic states
Issue Date: Jul-2001
Publisher: American Physical Society
Citation: Physical Review A, 2001, Vol.64, p012707
Abstract: Dissociative attachment of low-energy electrons to the electronically excited and bent 1B2 state of CS2 is studied. The measurements are carried out in a crossed three-beam geometry in which a laser beam is used to prepare the excited molecules. The absolute cross sections for the formation of S- and CS- by dissociative attachment to the 1B2 excited state are determined by a measurement of the relative number density in the excited state. Based on the earlier observation of the formation of S-2 from the linear symmetric ground state of CS2, an increase in the S-2 cross section was expected from the bent excited state. However, S-2 is found to be absent from this state. Possible mechanisms are proposed to explain this counterintuitive result.
Description: Restricted Access. An open-access version is available at (one of the alternative locations)
ISSN: 1050-2947
1094-1622 (online)
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Copyright: 2001 American Physical Society
Appears in Collections:Research Papers (LAMP)

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