Modified atomic orbital theory applied to the calculation of high-lying 2(K,T)n±1,3P° rydberg series of he-like ions

References

[1] Madden, R.P. and Codling, K. (1963) New autoionizing atomic energy levels in He, Ne, and Ar, Physical Review Letters, 10, 516-518. doi:10.1103/PhysRevLett.10.516

[2] Herrick, D.R. and Sinanoglu, O. (1975) Comparison of doubly-excited helium energy levels, isoelectronic series, autoionization lifetimes, and group-theoretical configure- tion-mixing predictions with large-configuration-interac- tion calculations and experimental spectra. Physical Review A, 11, 97-110. doi:10.1103/PhysRevA.11.97

[3] Sinanoglu, O. and Herrick, D.R. (1975) Group theoretic prediction of configuration mixing effects due to Coulomb repulsions in atoms with applications to doubly—excited spectra. Journal of Chemical Physics, 62, 886-892.
doi:10.1063/1.430540

[4] Lin, C.D. (1986), Doubly excited states, including new classification schemes. Advances in Atomic and Mole- cular Physics, 22, 77-142.
doi:10.1016/S0065-2199(08)60335-8

[5] Watanabe, S. and Lin, C.D. (1986) Demonstration of mo- leculelike modes of doubly excited states in hypersph- erical coordinates. Physical Review A, 34, 823-837.
doi:10.1103/PhysRevA.34.823

[6] Chen M.-Keh. (1997) Doubly excited 1,3Se, 1,3Po, and 1,3De resonances in He below the n =2 He+ threshold. Physical Review A, 56, 4537-4544.
doi:10.1103/PhysRevA.56.4537

[7] Oza, D.H. (1986) Phase shifts and resonances for electron scattering by He+ below the N = 2 threshold. Physical Review A, 33, 824-838. doi:10.1103/PhysRevA.33.824

[8] Conneely, M.J. and Lipsky, L. (1978) Widths and configuration mixings of two-electron systems below the N = 2 threshold. Journal of Physics B: Atomic, Molecular and Optical Physics, 11, 4135.

[9] Ho, Y.K. (1991) Doubly excited 1P? resonances in He, Z Physics D Atoms, Molecules and Clusters, 21, 191-196.
doi:10.1007/BF01426371

[10] Ho, Y.K. (1991) Complex-coordinate calculations for doubly excited states of two-electron atoms. Physical Review A, 23, 2137-2149.
doi:10.1103/PhysRevA.23.2137

[11] Chung, K.T. and Lin, C.D. (1998) Doubly excited states of Li+ below the N = 2 and N= 3 thresholds of Li2+, Atomic Data and Nuclear Data Tables, 69, 101-124.
doi:10.1006/adnd.1998.0772

[12] Ivanov, A.I. and Safronova, I.U. (1993) Calculation of the correlation part of the energy of two-electron systems. Optika Spectrosk, 75, 516.

[13] Sakho, I. Konté, A. Ndao, A.S. Biaye, M. and Wagué, A. (2010) Calculations of (nl2) and (3lnl’) autoionizing states in two-electron systems. Physica Scripta, 82, 035301.
doi:10.1088/0031-8949/82/03/035301

[14] Sakho, I. (2010) High-lying 1P? doubly-excited states of H? and He below the N = 3 - 13 hydrogenic thresholds. European Physical Journal D, 59, 171-177.
doi:10.1140/epjd/e2010-00163-y

[15] Sakho, I. (2011) Screening constant by unit nuclear charge calculations of 1,3Se, 1,3P° and 1,3De intershell Rydberg states of the helium-like ions below the N = 2 hydrogenic thresholds. European Physical Journal D, 61, 267-283. doi:10.1140/epjd/e2010-10294-8

[16] Khar, K. and Ho, Y.K. (2006) Doubly excited inter-shell P-wave resonances of helium in weakly coupled plasma. Journal of Physics B: Atomic, Molecular and Optical Physics, 39, 2445-2453.
doi:10.1088/0953-4075/39/11/010

[17] Sakho, I. (2010) A modification of atomic orbital theory and its application to (1snl)1L? and (nl2) 1L? excited states of He-like ions. Journal of Atomic and Molecular Sciences, 2,103. doi: 10.4208/jams.022510.031010a

[18] Sakho, I. (2010) Modified atomic orbital calculations for (1s, nl)3L? and excited states of He isoe- lectronic sequence. Journal of Atomic and Molecular Sciences, 3, 224. doi: 10.4208/jams.042710.051510a

[19] Hicks, P.J. and Comer, J. (1975) Ejected electron spectroscopy of autoionizing states excited by low energy electron impact. Journal of Physics B: Atomic, Molecular and Optical Physics, 8, 1866.
doi:10.1088/0022-3700/8/11/022

[20] Diehl, S. Cubaynes, D. Bizau, J.-M. Wuilleumier, F.J. Kenedy, E.T. Mosnier, J.-P. and Morgan, T.J. (1999) New high-resolution measurements of doubly excited states of Li+. Journal of Physics B: Atomic, Molecular and Optical Physics, 32, 503. doi:10.1088/0953-4075/32/17/305