Phys. Rev. A 75, 012703 (2007) [8 pages]Integral cross section with magnetic sublevels and polarization degree of He-like Cl ions by electron impactReceived 26 June 2006; revised 20 October 2006; published 5 January 2007 The Breit-Pauli R-matrix method with 17 fine-structure levels is used to calculate integral cross sections with magnetic sublevels for electron-impact excitation of He-like Cl ions from the ground state. The integral cross sections are obtained for transitions from the ground state to the fine-structure levels of all the excited states of the 1s2l (l=0,1) configurations. Polarization degrees for the w (1s2 1S0−1s2p 1P1), y (1s2 1S0−1s2p 3P1), and x (1s2 1S0−1s2p 3P2) lines of low and moderately charged He-like ions are also obtained for a systematic investigation of the atomic number dependence. Our results for the polarization degree of He-like Cl ions are found to be in excellent agreement with experimental and other theoretical results. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.75.012703
DOI:
10.1103/PhysRevA.75.012703
PACS:
34.80.Kw, 52.57.Kk, 52.38.−r, 34.80.Pa
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