Abstract
We reported elastic (integrated and differential), momentum-transfer, and excitation cross sections for electron collisions with methylene radical. -matrix method is employed to calculate the cross section for electron energies ranging from 0.01 to 15 eV. The results of 1-state, 3-state, 15-state, 20-state, and 24-state close-coupling (CC) approximations are presented. We detect two shape resonances and three Feshbach resonances in the 24-state CC approximation. We discuss the multichannel-coupling effects on the calculated cross sections and resonances, and how the number of excited states included in the target state impacts the convergence of the elastic and the and excitation cross sections, especially at higher impact energy. Finally, we estimate the accuracy of the and excitation cross sections.
1 More- Received 29 September 2017
DOI:https://doi.org/10.1103/PhysRevA.97.012703
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