The ground state and doubly-excited 1,3P° states of hot-dense plasma-embedded Li+ ions
Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23, Taipei, 106, Taiwan
Corresponding author: a firstname.lastname@example.org
Revised: 20 January 2007
Published online: 6 April 2007
We have investigated the ground state and the doubly excited 1,3P○ resonance states of plasma-embedded Li+ ion. The plasma effect is taken care of by using a screened Coulomb potential obtained from the Debye model. A correlated wave function has been used to represent the correlation effect between the charged particles. The ground state of Li+ in plasmas for different screening parameters has been estimated in the framework of Rayleigh-Ritz variational principle. In addition, a total of 18 resonances (9 each for 1P○ and 3P○ states) below the n=2 Li+ thresholds has been estimated by calculating the density of states using the stabilization method. For each spin state, this includes four members in the 2snp+ (2≤n ≤5) series, three members in the 2snp- (3≤n ≤5) series, and two members in the 2pnd (n=3, 4) series. The resonance energies and widths for various Debye parameters ranging from infinity to a small value for these 1,3P○ resonance states along with the ground state energies of Li+ and the Li2+ (1S), Li2+ (2S) threshold energies are reported. Furthermore, the wavelengths for the photo-absorption of lithium ion from its ground state to such 1P○ resonance states for different Debye lengths are also reported.
PACS: 52.20.Fs – Electron collisions / 95.30.Dr – Atomic processes and interactions / 34.80.Bm – Elastic scattering of electrons by atoms and molecules / 95.75.Fg – Spectroscopy and spectrophotometry
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2007