dorsal/arxiv
View SchemaOctupole Contributions to the Generalized Oscillator Strengths of Discrete Dipole Transitions in Noble Gases
| Authors | M. Ya. Amusia, L. V. Chernysheva, Z. Felfli, A. Z. Msezane |
|---|---|
| Categories | |
| ArXiv ID | physics/0701024 |
| URL | https://arxiv.org/abs/physics/0701024 |
| DOI | 10.1103/PhysRevA.75.062703 |
Abstract
The generalized oscillator strengths (GOS) of discrete excitations np-nd, both dipole (L=1) and octupole (L=3) are studied, the latter for the first time. We demonstrate that although the relevant transitions in the same atom are closely located in energy, the dependence of their GOS on the momentum transfer q squared, is remarkably different, so that the GOS corresponding to L=3 have at least one extra maximum as a function of q squared and dominate over those of the L=1, starting from about q=1.25$ atomic unit (a.u.). The calculations were performed in the one particle Hartree-Fock approximation and with account of many-electron correlations via the Random Phase Approximation with Exchange. The GOS are studied for values of q squared up to 30 a.u.
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"abstract": "The generalized oscillator strengths (GOS) of discrete excitations np-nd,\nboth dipole (L=1) and octupole (L=3) are studied, the latter for the first\ntime. We demonstrate that although the relevant transitions in the same atom\nare closely located in energy, the dependence of their GOS on the momentum\ntransfer q squared, is remarkably different, so that the GOS corresponding to\nL=3 have at least one extra maximum as a function of q squared and dominate\nover those of the L=1, starting from about q=1.25$ atomic unit (a.u.). The\ncalculations were performed in the one particle Hartree-Fock approximation and\nwith account of many-electron correlations via the Random Phase Approximation\nwith Exchange. The GOS are studied for values of q squared up to 30 a.u.",
"arxiv_id": "physics/0701024",
"authors": [
"M. Ya. Amusia",
"L. V. Chernysheva",
"Z. Felfli",
"A. Z. Msezane"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.75.062703",
"title": "Octupole Contributions to the Generalized Oscillator Strengths of Discrete Dipole Transitions in Noble Gases",
"url": "https://arxiv.org/abs/physics/0701024"
},
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