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Fine and hyperfine structure of the Li/sup -/ spectrum

Journal Article · · Phys. Rev. A; (United States)

The fine and hyperfine structures of the doubly excited, quintet states of the /sup 7/Li/sup -/ ion are of comparable magnitude. This leads to strong second-order hyperfine corrections and to significant distortion of the Lande interval rule. We discuss the results of our many-body calculations in this system, and also in the analogous lithium quartet systems for which experimental data exist. We find that the hyperfine matrix elements of these few-electron systems may be adequately computed without detailed consideration of the electron correlations. Fine structure is significantly affected by such correlations. Experimental verification of the Li/sup -/ structure is underway.

Research Organization:
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
6541906
Journal Information:
Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 30:2; ISSN PLRAA
Country of Publication:
United States
Language:
English