Four-body treatment of the antihydrogen-positronium system: binding, structure, resonant states and collisions

Four-body treatment of the antihydrogen-positronium system : binding, structure, resonant states and collisions

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.

Yamashita, TakumaTohoku Univ, Dept Chem, Sendai, Miyagi 9808578, Japan (författare)
Kino, YasushiTohoku Univ, Dept Chem, Sendai, Miyagi 9808578, Japan (författare)
Jonsell, SvanteStockholm Univ, Dept Phys, S-10691 Stockholm, Sweden (författare)
Hiyama, EmikoRIKEN, Nishina Ctr, Wako, Saitama 3510198, Japan (författare)
Piszczatowski, KonradUppsala universitet,Teoretisk kemi(Swepub:uu)konpi511 (författare)
Uppsala universitetTeoretisk kemi (creator_code:org_t)

Av författaren/redakt...: Froelich, Piotr; Yamashita, Takum ...; Kino, Yasushi; Jonsell, Svante; Hiyama, Emiko; Piszczatowski, K ...

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