Energy, fine structure, hyperfine structure, and radiative transition rates of the high-lying multi-excited states for B-like neon

The transitions in highly ionized B-like neon ions play an important role in the diagnostics of astrophysical and laboratory plasmas. The Rayleigh-Ritz variational method with multiconfiguration interaction wave functions is used to obtain the energies of high-lying multi-excited quartet states 1s²2s2pnl and 1s²2p²nl⁴P^e,o (n≥ 2) in B-like neon, including the mass polarization and relativistic corrections. The fine structure and hyperfine structure of the excited quartet states for this system are investigated. Configuration structures of the high-lying multi-excited series are further identified by relativistic corrections and fine structure splittings. The transition rates and wavelengths are also calculated. Calculated transition wavelengths agree well with the experimental data by including QED effects. The results show that the main configuration structure could be further checked by relativistic perturbation correction and fine structure splitting. Some of the energy levels of the high-lying excited states and most of the hyperfine structure constants for the ⁴P^e,o system in B-like neon are reported for the first time