Atoms, Volume 12, Issue 7 (July 2024) – 4 articles
Cover Story (view full-size image):
The single-center convergent close-coupling (CCC) method was utilized to obtain a comprehensive set of cross sections for positron scattering on atomic boron for energies between 10−5 eV and 5000 eV. An accurate representation of the atomic structure was obtained, and excellent agreement was found with a previous experiment and the theory for excitation energies, oscillator strengths, and polarizabilities. To obtain positronium-formation and direct ionization cross sections, a model potential technique was used, together with the CCC method. From the current cross sections and previous CCC results for hydrogen and fluorine, the cross sections of positron scattering on BH, BF, BF2, and BF3 were obtained, with a modified independent atom approach. For all targets, good agreement with previous electron results was found at high energies. View this paper
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