title: Antihydrogen Formation via Antiproton Scattering with Excited Positronium.
abstract: Utilizing the two-center convergent close-coupling method, we find a several order of magnitude enhancement in the formation of antihydrogen via antiproton scattering with positronium in an excited state over the ground state. The effect is greatest at the lowest energies considered, which encompass those achievable in experiment. This suggests a practical approach to creating neutral antimatter for testing its interaction with gravity and for spectroscopic measurements.
authors.affiliation: Curtin Institute for Computation and Department of Physics, Astronomy and Medical Radiation Sciences, Curtin University, Perth, Western Australia 6102, Australia.
authors.forename: A S
authors.initials: AS
authors.lastname: Kadyrov
authors.affiliation: Curtin Institute for Computation and Department of Physics, Astronomy and Medical Radiation Sciences, Curtin University, Perth, Western Australia 6102, Australia.
authors.forename: C M
authors.initials: CM
authors.lastname: Rawlins
authors.affiliation: Curtin Institute for Computation and Department of Physics, Astronomy and Medical Radiation Sciences, Curtin University, Perth, Western Australia 6102, Australia.
authors.forename: A T
authors.initials: AT
authors.lastname: Stelbovics
authors.affiliation: Curtin Institute for Computation and Department of Physics, Astronomy and Medical Radiation Sciences, Curtin University, Perth, Western Australia 6102, Australia.
authors.forename: I
authors.initials: I
authors.lastname: Bray
authors.affiliation: Department of Physics, College of Science, Swansea University, SA28PP, United Kingdom.
authors.forename: M
authors.initials: M
authors.lastname: Charlton