Research in atomic structure: A configuration interaction program with relativistic corrections

Abstract The RIAS computer program implements the recent formulation for the evaluation of the matrix elements of the complete atomic Hamiltonian operator (S. Fraga et al., Phys. Rev. A 34 (1986) 23). The SL, J or F levels may be obtained by diagonalization of the interaction energy matrix constructed from appropriate SM_S LM_Lfunctions. The program allows for accurate determination of the energy levels of any neutral or ionized atomic system. Title of program: RIAS Catalogue Id: ABBB_v1_0 Nature of problem Determination of the energy levels of any neutral or ionized atomic system. CORRECTION SUMMARY: Vol:Year:Page 52:1989:445 "000ACORRECTION 07/09/88" "Research in atomic structure: a configuration interaction program with relativistic corrections. (C.P.C. 47(1987)159)." S. Fraga; M. Klobukowski; J. Muszynska; K.M.S. Saxena; J.A. Sordo; J.D. Climenhaga; P. Clark Note: correction instructions are contained in source code Versions of this program held in the CPC repository in Mendeley Data ABBB_v1_0; RIAS; 10.1016/0010-4655(87)90075-0 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)