Physics
Scientific paper
Jul 1971
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1971phrva...4..171w&link_type=abstract
Physical Review A, vol. 4, Issue 1, pp. 171-182
Physics
20
Scientific paper
Cross sections are computed for the elastic and fine-structure excitation scattering of singly ionized carbon atoms by low-energy (less than 0.1 eV) hydrogen atoms. A close-coupling formulation is employed and the scattering equations are solved in a coupled-angular-momentum representation. The correct energy defect between the C+(2P) fine-structure levels is included. For the first time, both spin-change and long-range electrostatic coupling terms are explicitly included in the scattering equations. The calculated C+-H excitation cross section varies from 4.87×10-15 cm2 at 0.01 eV to 2.86×10-15 cm2 at 0.085 eV, and the maximum of almost 5.60×10-15 cm2 occurs near 0.015 eV. The spin-change coupling, described herein, is found to be much more important than the long-range electrostatic coupling at all energies considered.
Lane Neal F.
Weisheit Jon C.
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