Breit-Pauli R-matrix calculation for electron collision excitation of fine-structure levels in P II
Abstract
Electron collision excitation strengths of transitions among the 41 fine-structure levels of the ground 3s^23p^2 and excited 3s3p^3, 3s^23p3d, 3s^23p4s, and 3s^23p4p configurations in P II have been calculated using the full Breit-Pauli R-matrix method. The target levels are represented by configuration-interaction wave functions. The wave functions exhibit large correlation corrections. The agreement between the calculated and measured excitation energies as well as between the length and velocity values of oscillator strength is an indication of the reliability of target wave functions. The mass, Darwin, and spin-orbit relativistic terms are included in the scattering equations. The resonances make substantial enhancements in the total collision strengths for several transitions at low electron energies. The resonance contribution is largest for the optically forbidden transitions.
- Publication:
-
APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
- Pub Date:
- May 2003
- Bibcode:
- 2003APS..DMP.J1072T