dorsal/arxiv
View SchemaAtomic data calculations by Z-expansion method for doubly excited states 2lnl' and 1s2lnl' of highly charged ions with Z=6-36. I. Transitions from the states with n=2,3
| Authors | F. F. Goryayev, A. M. Urnov, L. A. Vainshtein |
|---|---|
| Categories | |
| ArXiv ID | physics/0603164 |
| URL | https://arxiv.org/abs/physics/0603164 |
Abstract
The wavelengths and radiative transition probabilities for transitions 2lnl'-1snl", 2lnl'-1s2l", 1s2lnl'-1s^2.nl", 1s2lnl'-1s^2.2l", and the autoionization decay probabilities for doubly excited states 2lnl', 1s2lnl' were calculated in ions with atomic numbers Z=6-36 for n=2-10, l'=0-3. The calculations were carried out by means of the MZ code based on the Z-expansion method. Relativistic corrections were taken into account within the framework of the Breit operator. The main difference with previous calculations by MZ code consists in accounting for the first order corrections in powers of 1/Z, corresponding to the screening effects, in calculations of autoionization rates. New data for comparatively large rates are about 20-50% less as compared to previous ones and are in a agreement within 10% with the results of calculations made by the methods based on multi-configuration wave functions with non-relativistic and relativistic orbitals. Some refinements and corrections concerning the energies and radiative transition probabilities were also introduced in the MZ code. In this paper the main formulas used in a modified MZ-code and the data needed for description of dielectronic satellites with n=2,3 are given; the data for higher n will be presented in the following publications.
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"abstract": "The wavelengths and radiative transition probabilities for transitions\n2lnl\u0027-1snl\", 2lnl\u0027-1s2l\", 1s2lnl\u0027-1s^2.nl\", 1s2lnl\u0027-1s^2.2l\", and the\nautoionization decay probabilities for doubly excited states 2lnl\u0027, 1s2lnl\u0027\nwere calculated in ions with atomic numbers Z=6-36 for n=2-10, l\u0027=0-3. The\ncalculations were carried out by means of the MZ code based on the Z-expansion\nmethod. Relativistic corrections were taken into account within the framework\nof the Breit operator. The main difference with previous calculations by MZ\ncode consists in accounting for the first order corrections in powers of 1/Z,\ncorresponding to the screening effects, in calculations of autoionization\nrates. New data for comparatively large rates are about 20-50% less as compared\nto previous ones and are in a agreement within 10% with the results of\ncalculations made by the methods based on multi-configuration wave functions\nwith non-relativistic and relativistic orbitals. Some refinements and\ncorrections concerning the energies and radiative transition probabilities were\nalso introduced in the MZ code. In this paper the main formulas used in a\nmodified MZ-code and the data needed for description of dielectronic satellites\nwith n=2,3 are given; the data for higher n will be presented in the following\npublications.",
"arxiv_id": "physics/0603164",
"authors": [
"F. F. Goryayev",
"A. M. Urnov",
"L. A. Vainshtein"
],
"categories": [
"physics.atom-ph",
"physics.optics"
],
"title": "Atomic data calculations by Z-expansion method for doubly excited states 2lnl\u0027 and 1s2lnl\u0027 of highly charged ions with Z=6-36. I. Transitions from the states with n=2,3",
"url": "https://arxiv.org/abs/physics/0603164"
},
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