We apply a new highly efficient method of solving the Faddeev–Merkuriev equations to multichannel scattering calculations of the antihydrogen formation cross section for antiproton scattering off the ground and excited states of the positronium. Our results demonstrate good agreement with the known data on total and partial cross sections for all the reaction channels. Using moderate computational resources we have achieved a supreme energy resolution.
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ACKNOWLEDGMENTS
Research was carried out using computational resources provided by Resource Center “Computer Center of SPbU” (http://cc.spbu.ru).
Funding
V.A. Gradusov acknowledges the support of the Russian Science Foundation, project no. 19-72-00076.
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Gradusov, V.A., Roudnev, V.A., Yarevsky, E.A. et al. Theoretical Study of Reactions in the \({{e}^{ - }}{{e}^{ + }}\bar {p}\) Three Body System and Antihydrogen Formation Cross Sections. Jetp Lett. 114, 11–17 (2021). https://doi.org/10.1134/S0021364021130026
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DOI: https://doi.org/10.1134/S0021364021130026