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Forbidden transitions; transition energies; logarithmic weighted oscillator strengths; transition probabilities.

Using the multiconfiguration Hartree–Fock approximation within the framework of the Breit–Pauli Hamiltonian (MCHF+BP) and the relativistic Hartree–Fock (HFR) approximation, we have calculated the forbidden transition (𝑀1 and 𝐸2) parameters such as transition energies, logarithmic weighted oscillator strengths and transition probabilities between the fine-structure levels in the ground-state configuration of 3d⁵ 4s² for atomic manganese (Mn I, Z =25). A discussion of these calculations for manganese using MCHF+BP and HFR methods is given here.

S Kabakçi¹ B Karaçoban Usta¹ L Özdemir¹

1. Department of Physics, Sakarya University, 54187 Sakarya, Turkey

Published

October 2015

Manuscript received

30 January 2014

Manuscript revised

11 July 2014

Accepted

21 August 2014

Early published

13 June 2015