Electron-impact excitation of heliumlike titanium

Details Electron-impact excitation of heliumlike titanium Electron-impact excitation of heliumlike titanium

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995phrva..52.3366z&link_type=abstract

Physical Review A (Atomic, Molecular, and Optical Physics), Volume 52, Issue 4, October 1995, pp.3366-3369

Physics

1

Ab Initio Calculations, Zeeman And Stark Effects, Magnetic And Electric Fields, Polarization Of Starlight, Neutron Stars

Scientific paper

We report theoretical close-coupling calculations for electron-impact excitation cross sections of He-like Ti XXI ions using the R-matrix method, including relativistic and radiation damping effects. The cross sections are in good agreement with experimental measurements from the electron-beam ion trap [Chantrenne et al., Phys. Rev. Lett. 69, 265 (1992)] for the four prominent x-ray transitions: 1s2(1S0)-->1s2s(3S1), 1s2p(3Po1,2), 1s2p(1Po1), indicating that both the relativistic and the resonance effects, with radiative damping, may affect the electron-impact excitation process significantly in highly charged ions.

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