Krishnamurthy, Vidhya ; Mathur, D. (1990) An experimental and theoretical study of the negatively charged helium dimer, He2- Chemical Physics Letters, 167 (5). pp. 475-478. ISSN 0009-2614
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0009-2614(90)85034-A
Abstract
Translational energy spectrometry measurements have been made on He2- ions resulting from 3 keV double-electron capture collisions between He2+ and N2. The endoergic energy defect for this reaction is measured to be 43 eV. Potential energy curves have been computed for He2+ (X 2Σ +), He2- (4Σ+) and He2(3Σ+) in order to elucidate the negative ion formation mechanism. The vertical electron affinity for He2- is determined to be +0.15 eV, and a lower limit on its lifetime is measured to be 1.6 μ s.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 77540 |
| Deposited On: | 13 Jan 2012 06:44 |
| Last Modified: | 13 Jan 2012 06:44 |
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