Positronium formation during scattering of positrons by hydrogen atoms
Creators:Nahar, Sultana Nurun
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Publisher:American Physical Society
Citation:Nahar, Sultana Nurun, "Positronium formation during scattering of positrons by hydrogen atoms," Physical Review A, v. 40, no. 11, December, 1989.
The formation of positronium (Ps) in different states by the impact of intermediate energy (20-500 eV) positrons on atomic hydrogen is calculated using the distorted-wave Born approximation along with the first Born approximation. Differential and integrated cross sections for the formation of Ps(ls), Ps(2s), Ps(2p_0), and Ps(2p_1) have been evaluated individually and then 1/n^3 behavior for charge-transfer cross sections is used for n ≥ 3 to obtain the total cross sections for positronium formation. The present results for positronium formation cross sections are in agreement with the results of other available investigations.
Relevant data is available at: http://www.astronomy.ohio-state.edu/~nahar/nahar_radiativeatomicdata/index.html
Rights:© 1989 The American Physical Society
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