Relativistic configuration-interaction calculations of then=3-3 transition energies in highly charged tungsten ions

Abstract

A large-scale relativistic configuration-interaction calculation of the $n=3$-3 transition energies for Ne- to Ar-like tungsten is carried out. The calculation is based on the relativistic no-pair Hamiltonian and uses finite $B$-spline orbitals in a cavity as basis functions. Quantum electrodynamic and mass polarization corrections are also included. Results are compared with other theories and with experiment, and are generally found to be more reliable than previous theoretical predictions.