Atomic structure and transition parameters of the C-like ion K XIV

Energy levels, lifetimes, oscillator strengths and transition probabilities for the multicharged carbon like K XIV ion have been calculated with the configuration expansion: 2s 2 2p 2 , 2p 4 , 2s 2 2p3p, 2s 2 2p4p, 2s2p 2 3s, 2s2p 2 4s, 2s2p 2 3d, 2s2p 2 4d, 2s2p 2 3p, 2s2p 2 4p, 2s 2 2p3s, 2s 2 2p4s, 2s 2 2p3d, 2s 2 2p4d and 2s2p 3 . Two methods were used in the calculations: the Hartree-Fock pseudo-relativistic approach and the Thomas-Fermi-Dirac-Amaldi potential approach using the Cowan and the AUTOSTRUCTURE atomic structure codes respectively. Results have been compared with data from National Institute of Standards and Technology Atomic Spectra Database (NIST-ASD) and from other theoretical methods. Obtained new data will be important for plasma analysis in laboratories and for astrophysical modeling.