Proton excitation of fine-structure transitions in Fe XIV

Details Proton excitation of fine-structure transitions in Fe XIV Proton excitation of fine-structure transitions in Fe XIV

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983phrva..27.2826h&link_type=abstract

Physical Review A - General Physics, 3rd Series (ISSN 0556-2791), vol. 27, June 1983, p. 2826-2830. Research supported by the U.

Physics

General Physics

22

Atomic Energy Levels, Atomic Excitations, Electron Transitions, Fine Structure, Iron, Proton Impact, Born Approximation, Elastic Scattering, Hydrogen Ions, Potential Energy, Scattering Cross Sections

Scientific paper

The interaction of a proton with Fe(13+) is characterized for all distances by calculating the potential-energy curves of FeH(14+) via an approximation which sufficiently describes the short-range interaction while taking the quadrupole and polarization forces into account for the long-range interaction. Interaction potentials are determined for the quasimolecular Sigma and Pi states and used to compute the quantal cross sections of Fe(13+) proton-impact excitation. Comparison of the quantal cross sections and rate coefficients with those based on Coulomb-Born and elastic approximations indicates that the latter are often misleading, and that the quantal approach provides the most accurate characterization of the potentials available.

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