Energies and transition rates for Be-like ions (Xe LI - Ce LV)
Physics Department, Faculty of Science, Kafrelsheikh University, Kafr El-Sheikh, Egypt
2 Physics Department, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
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Accepted: 6 May 2015
Published online: 2 June 2015
Energy levels, wavelengths, oscillator strengths, transition probabilities and lifetimes have been calculated for Be-like Xe, Cs, Ba, La, and Ce ions among the fine-structure levels of terms belonging to the 2s2, 2s2p, 2p2, 2s3s, 2s3p, 2s3d, and 2p3d configurations. The calculations have been performed using the fully relativistic multiconfiguration Dirac-Fock (MCDF) method, taking the quantum electrodynamic corrections (QED) into account. The results are compared with the available other theoretical results.
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