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Screening constant by unit nuclear charge calculations of resonance energies and widths of the 3pns 1,3P° and 3pnd 1P° Rydberg series of Mg-like (Z= 13-26) ions

Resonance energies and total natural width of the 3pns 1P° and 3pnd 1P° Rydberg series of Mg-like (Z¼13–26) ions are reported. Resonance energies of the Mg-like Alþ belonging to the 3pns 3P °- p p P 2 3 6 1/2 02 and 3pns 3P°- p p P 2 3 6 3/2 02 transitions are also tabulated. The calculations are made in the framework of the Screening constant by unit nuclear charge (SCUNC) formalism. Excellent agreements between experiments at ALS and R-matrix calculations are obtained for both 3pns 1,3P° and 3pnd 1P° Rydberg series of the Mg-like Alþ ions. The present results for Mg-like Si2þ,S 4þ, Cl 5þ, and Ar6þ, compared with the only existing R-matrix calculations indicate lack of accuracy in the Mg-like Si2þ data obtained from noniterative formulation of the eigenchannel R-matrix method. New precise data for Mg-like P3+,K 7+, Ca 8+, Sc 9+, Ti10+,V11+, Cr12+, Mn13þ, and Fe14þ ions are presented as useful guidelines for investigators focusing their challenge on the Photoionization of Mg-like heavy charged ions in connection with their application in laboratory, astrophysics, and plasma physics.


Auteur(s) : Indu Khatri, Arun Goyal, Mamadou Diouldé Ba, Maurice Faye, Malick Sow, Ibrahima Sakho, A.K. Singh, Man Mohan, Ahmadou Wagué
Pages : 208-215
Année de publication : 2017
Revue : Radiation Physics and Chemistry
N° de volume : 130
Type : Article
Mise en ligne par : SOW Malick