Author(s)

Abdourahmane Diallo^1*, Ibrahima Sakho², Jean Kouhissoré Badiane¹, Mamadou Diouldé Ba¹, Modou Tine¹

¹Department of Physics, UFR Sciences and Technologies, University Assane Seck of Ziguinchor, Ziguinchor, Senegal.
²Department of Physics and Chemistry, UFR Sciences and Technologies, University of Thiès, Thiès, Senegal.

In this paper, we have declined the formalism of the method of the Modified Atomic Orbital Theory (MAOT) applied to the calculations of energies of doubly excited states 2snp, 3snp, and 4snp Helium-like systems. Then we also applied the variational procedure of the Modified Atomic Orbital Theory to the computations of total energies, excitation energies of doubly-excited states 2snp, 3snp, 4snp types of Helium-like systems. The results obtained in this work are in good agreement with the experimental and theoretical values available.

Modified Atomic Orbital Theory, Doubly Excited States, Excitation Energy, Helium-Like Systems

Diallo, A. , Sakho, I. , Badiane, J. , Ba, M. and Tine, M. (2021) Variational Calculation of the Doubly-Excited States Nsnp of He-Like Ions via the Modified Atomic Orbitals Theory. Journal of Modern Physics, 12, 105-121. doi: 10.4236/jmp.2021.122011.