@article{89354b4372d64fdcbd840a167512058d,
title = "Near-threshold production of antihydrogen positive ion in positronium-antihydrogen collision",
abstract = "Near-threshold production of antihydrogen ion (H¯+) in positronium-antihydrogen collisions is predicted by a rigorous four-body scattering calculation. The convergence of the cross sections for the rearrangement and for all competing reactions (elastic scattering, de/excitation and de/polarization of positronium) is carefully examined against partial waves. The multi-channel scattering solutions are composed of functions that diagonalize the four-body Hamiltonian, and scattering functions that satisfy the correct asymptotic boundary conditions. The production rates of H¯+ show large discrepancies compared to more approximate calculations.",
keywords = "Antihydrogen, Antihydrogen positive ion, Four-body calculation, Positronium",
author = "Takuma Yamashita and Yasushi Kino and Emiko Hiyama and Svante Jonsell and Piotr Froelich",
note = "Funding Information: We would like to thank Dr. Konrad Piszczatowski (a post-doctoral visitor at the Department of Chemistry, Uppsala University from the Quantum Chemistry Laboratory, Warsaw University) for his contribution to code development. TY would like to thank Special Postdoctoral Researcher (SPDR) programme in RIKEN and JSPS KAKENHI Grant No. JP20K14381, YK would like to thank JSPS KAKENHI Grant No. 17K05592 and 18H05461, SJ would like to thank the Swedish Research Council (VR) for financial supports. The computation was conducted on the supercomputers ITO at Kyushu University and HOKUSAI at RIKEN. PF would like to thank the Tohoku University for the generous support of the research visit of TY to Uppsala University. Publisher Copyright: {\textcopyright} 2021 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft",
year = "2021",
month = jan,
doi = "10.1088/1367-2630/abd682",
language = "English",
volume = "23",
journal = "New Journal of Physics",
issn = "1367-2630",
publisher = "IOP Publishing Ltd.",
number = "1",
}