NDLI: Collision strengths for the electron impact excitation of Ca XIII

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Collision strengths for the electron impact excitation of Ca XIII

Content Provider	Scilit
Author	Baliyan, K. S. Bhatia, A. K.
Copyright Year	1994
Description	Journal: Journal of Physics B: Atomic, Molecular and Optical Physics The R-matrix method is used to obtain collision strengths for the electron impact excitation of the oxygen-like Ca XIII ion for all transitions between the 16 target states of even and odd parity. The wavefunctions for these states are generated using the configuration interaction method. The calculated values of the target state energies agree with the experimental values within 7%. The initial and final state wavefunctions for the composite (electron+ion) system are obtained by retaining these states in the R-matrix basis function expansion. In the low partial wave region (total angular momentum L30) contribution to the cross sections for dipole allowed transitions. However, it is seen that collision strengths for almost all the transitions, including the dipole allowed, converge below L=30. The calculations are carried out in LS coupling and the results are compared with those obtained in the distorted-wave approximation along with other results, where available.
Related Links	http://iopscience.iop.org/article/10.1088/0953-4075/27/18/023/pdf
Ending Page	4294
Page Count	14
Starting Page	4281
ISSN	09534075
e-ISSN	13616455
DOI	10.1088/0953-4075/27/18/023
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Issue Number	18
Volume Number	27
Language	English
Publisher	IOP Publishing
Publisher Date	1994-09-28
Access Restriction	Open
Subject Keyword	Journal: Journal of Physics B: Atomic, Molecular and Optical Physics Nuclear Physics Angular Momentum Electron Impact Cross Section
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics

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