Eur. Phys. J. D 53, 9-14 (2009)
https://doi.org/10.1140/epjd/e2009-00086-8

Relativistic multireference configuration interaction calculations of lifetime of 2s²2p ²P_3/2 level along boron isoelectronic sequence

Department of Computer Science, Pedagogical University, ul. Podchorążych 2, 30-084 Kraków, Poland

Corresponding author: ^a sfkoc@cyf-kr.edu.pl

Received: 15 July 2008
Revised: 11 November 2008
Published online: 13 March 2009

Abstract

Lifetime of 2s²2p ²P_3/2 level along with fine structure separations for the lowest ²P doublet of boron-like ions, from Z=14 to Z=30 have been calculated using multireference relativistic configuration interaction (MR RCI) method based on the no-pair Dirac-Coulomb-Breit (DCB) Hamiltonian. Analytic basis sets of Gaussian-type functions are employed to expand the upper and lower components of the Dirac four-spinors in the matrix Dirac-Fock self-consistent field (DF SCF) and relativistic MR CI procedures. Error with respect to variation of basis set parameters was estimated. QED corrections were estimated by evaluation of electron self-energy and vacuum polarisation.