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- Froelich, Piotr, et al.
(författare)
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Four-body treatment of the antihydrogen-positronium system : binding, structure, resonant states and collisions
- 2019
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Ingår i: Hyperfine Interactions. - : Springer. - 0304-3843 .- 1572-9540.
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Konferensbidrag (refereegranskat)abstract
- We have developed a coupled-rearrangement-channel method allowing the rigorous non-adiabatic treatment of the multi-channel scattering problem for four particles. We present the study of the binding, resonant and collisional properties of the (H) over bar -Ps system with the total angular momentum J = 0(+) (singlet positronic configuration). The binding energy, the life-times of the resonant states and the collisional cross sections are calculated and discussed. We present the preliminary cross sections for the elastic and inelastic (H) over bar -Ps scattering, notably for the excitation of Ps and for the rearrangement reaction producing the (H) over bar (+) ions.
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