TITLE:
Photoionization Study of the 4s24p4(3P1)nd, 4s24p4(1D2)nd and 4s24p4(1S0)nd Rydberg Series of Rb2+ via the Modified Atomic Orbital Theory
AUTHORS:
Oumar Baba Dia, Malick Sow, Moustapha Kebe, Papa Mamadou Ndiaye, Abdou Faye, Cheikh Tidjane Diouf, Ndeye Astou Thiam, Cheikh Ndiaye, Absa Gueye, Denis Cubaynes, Oumar Absatou Niasse
KEYWORDS:
Rydberg Series, MAOT, Photoionization, Ground State, Metastable State, Atomic Ions, Semi-Empirical Procedure
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.13 No.8,
August
27,
2025
ABSTRACT: We consider the 4s24p4(3P1)nd, 4s24p4(1D2)nd and 4s24p4(1S0)nd Rydberg series of Rb2+ originating from the 4s24p5(2P01/2) ground state and 4s24p5(2P03/2) metastable state of Rb2+ converging respectively to the 4s24p4(3P1), 4s24p4(1D2) and 4s24p4(1S0) series limit in Rb3+. The semi-empirical procedure of Modified Atomic Orbital Theory (MAOT) is applied to perform calculations in the present work from n = 6 up to n = 45. We note that the MAOT procedure gives accurate results compared to available Advanced Light Source (ALS) experimental data and other theoretical results. We tabulate new data from n = 22 - 45 for 4s24p4(1S0)nd Rydberg series originating from the 4s24p5(2P01/2) ground state and 4s24p5(2P03/2) metastable state of Rb2+. The other Rydberg series 4s24p4(3P1)nd and 4s24p4(1D2)nd are extended up to n = 45.