Physics – Atomic Physics
Scientific paper
Dec 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jqsrt..52..729n&link_type=abstract
Journal of Quantitative Spectroscopy & Radiative Transfer (ISSN 0022-4073), vol. 52, no. 6, p. 729-741
Physics
Atomic Physics
3
Autoionization, Electron States, Energy Levels, Radiative Transfer, Angular Momentum, Atomic Excitations, Atomic Physics
Scientific paper
Three different calculational methods (AUTOLSJ, MZ, MCDF) are used to obtain energy levels and autoionization rates for doubly-excited states 3l3l' of two electron systems (6 less than or equal to Z less than or equal to 54). By ordering all the states by energy within each block of a given angular momentum J and parity, it is possible to compare the autoionization rates obtained by the three methods. A comparison of the calculations is presented for Z = 18 and 26 and shows rather good agreement between the different methods. The Z dependences of the autoionizations rates are presented for the 3s3s (sup 1)S(sub 0) state to show general trends. Using the AUTOLSJ and MZ methods, the energy levels for Z = 6 and 8 are presented and compared with experimental data and very accurate calculations using the methods of complex-rotation, close-coupling, B-spline, and Feshbach projection.
Cornille Marguerite
Dubau Jacques
Ivanov Arkadi I.
Nilsen Joseph
Safronova U. I.
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