dorsal/arxiv
View SchemaElectron affinity of Li: A state-selective measurement
| Authors | Gunnar Haeffler, Dag Hanstorp, Igor Kiyan, Andreas E. Klinkmueller, Ulric Ljungblad, David J. Pegg |
|---|---|
| Categories | |
| ArXiv ID | physics/9703013 |
| URL | https://arxiv.org/abs/physics/9703013 |
| DOI | 10.1103/PhysRevA.53.4127 |
| Journal | Phys. Rev. A 53(6), page 4127-4131, June 1996 |
Abstract
We have investigated the threshold of photodetachment of Li^- leading to the formation of the residual Li atom in the $2p ^2P$ state. The excited residual atom was selectively photoionized via an intermediate Rydberg state and the resulting Li^+ ion was detected. A collinear laser-ion beam geometry enabled both high resolution and sensitivity to be attained. We have demonstrated the potential of this state selective photodetachment spectroscopic method by improving the accuracy of Li electron affinity measurements an order of magnitude. From a fit to the Wigner law in the threshold region, we obtained a Li electron affinity of 0.618 049(20) eV.
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"abstract": "We have investigated the threshold of photodetachment of Li^- leading to the\nformation of the residual Li atom in the $2p ^2P$ state. The excited residual\natom was selectively photoionized via an intermediate Rydberg state and the\nresulting Li^+ ion was detected. A collinear laser-ion beam geometry enabled\nboth high resolution and sensitivity to be attained. We have demonstrated the\npotential of this state selective photodetachment spectroscopic method by\nimproving the accuracy of Li electron affinity measurements an order of\nmagnitude. From a fit to the Wigner law in the threshold region, we obtained a\nLi electron affinity of 0.618 049(20) eV.",
"arxiv_id": "physics/9703013",
"authors": [
"Gunnar Haeffler",
"Dag Hanstorp",
"Igor Kiyan",
"Andreas E. Klinkmueller",
"Ulric Ljungblad",
"David J. Pegg"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.53.4127",
"journal_ref": "Phys. Rev. A 53(6), page 4127-4131, June 1996",
"title": "Electron affinity of Li: A state-selective measurement",
"url": "https://arxiv.org/abs/physics/9703013"
},
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