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Configuration-interaction-Hylleraas calculations on one-positron atomic systems
| Content Provider | Scilit |
|---|---|
| Author | Clary, D. C. |
| Copyright Year | 1976 |
| Description | Journal: Journal of Physics B: Atomic and Molecular Physics The suitability of the variational configuration-interaction-Hylleras method in obtaining accurate energies and annihilation rates for one-positron atomic systems is discussed. The wavefunctions are expanded in terms of configurations which consist of antisymmetrized products of r_{ij}$^{v}$ coordinates (v=0, 1, 2) with Slater-type orbitals. Using 84, 84, 67 and 68 term wavefunctions the authors have obtained energies for the$ ^{1,2}S(Li;e^{+}$),$ ^{1,2}S(He^{-};e^{+}$),$ ^{2,3}S(He;e^{+}$) and$ ^{2,1}S(H^{-};e^{+}$) systems. The$ ^{1,2}S(Li;e^{+}$),$ ^{1,2}S(He^{-};e^{+}$) and$ ^{2,3}S(He;e^{+}$) systems are stable with respect to positron dissociation but probably unstable with respect to positronium dissociation. With a view to facilitating further variational studies on atom-positron systems, a detailed discussion is given of the relative importance, on both annihilation rates and energies, of the configurations in the wavefunctions which represent particular correlation effects. |
| Related Links | http://iopscience.iop.org/article/10.1088/0022-3700/9/17/025/pdf |
| Ending Page | 3129 |
| Page Count | 15 |
| Starting Page | 3115 |
| ISSN | 00223700 |
| DOI | 10.1088/0022-3700/9/17/025 |
| Journal | Journal of Physics B: Atomic and Molecular Physics |
| Issue Number | 17 |
| Volume Number | 9 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1976-12-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics B: Atomic and Molecular Physics Positron Atomic Systems Energies and Annihilation Rates |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics |
