The 2s(2)2p3s P-1,3(J)degrees->2s(2)2p(2) and 2s(2)2p3p LSJ oscillator strengths in N II

A comparison between the recent measurements [Musielok et al., Phys. Rev. A53, 3122 (1996)] of the relative oscillator strengths for all lines in the three multiplets comprising the 2p3s-2p3p transition array in NII, and theoretical configuration interaction calculations performed with the CIV3 code [Bell et al., Physica Scripta 52, 240 (1995)] shows that, although the agreement between the experimental data and the theoretical results is good for allowed transitions, some unexpected deviations occur for the intersystem lines. In this work, we show that the previous theoretical work can be improved and some significant discrepancies with experiment eliminated by increasing the accuracy of the calculated energy difference between the 2p3s P-3(1)o and P-1(1)o states. This is achieved by the inclusion of additional orbitals and configurations together with adjustment of the diagonal matrix elements of the Hamiltonian. The new theoretical results for the transitions 2p3s P-1,3(J)o --> 2p(2) and 2p3p LSJ are compared with other theoretical work and with the experimental data.