Portal de Periódicos da CAPES

Screening constant by unit nuclear charge calculations of energy positions and widths of the 3pns 1,3P, 3pnd 1,3P and 3pnd 3D Rydberg series of Mg

2013; Elsevier BV; Volume: 86; Linguagem: Inglês

10.1016/j.radphyschem.2013.01.039

1879-0895

B. Diop, Moustapha Faye, M. Sow, Matabara Dieng, Mamadou Guèye, Ibrahima Sakho, M. Biaye, A. Wagué,

Nuclear physics research studies

Abstract In this paper, the Screening Constant by Unit Nuclear Charge (SCUNC) method is used to report high lying energy positions and widths of the 3 pns 1,3 P, 3 pnd 1,3 P and 3 pnd 3 D Rydberg series originating from the 3 s 2 1 S 0 →3 pnl 2S+1 L transitions in Mg. The results obtained are compared with the more recent experimental data ( Wehlitz et al., 2007 ) and with the fully relativistic R -matrix calculations ( Wang et al., 2010 ). Excellent agreements are obtained between the present calculations and the both experimental data and fully relativistic R -matrix calculations up to n =20. For many resonances, the present SCUNC method reproduces exactly the experimental data ( Wehlitz et al., 2007 ). In a few series where discrepancies are observed, the maximum energy difference relative to the experimental results is at 0.002 eV. The present work may be of great interest in the study of the double-electron excitations of Mg playing an important role in the description of its near-threshold photoionization process.