| Texto completo | |
| Autor(es): |
Carbonell, Jaume
;
Karmanov, Vladimir A.
;
Kupriyanova, Ekaterina A.
;
Sazdjian, Hagop
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | FEW-BODY SYSTEMS; v. 65, n. 2, p. 15-pg., 2024-05-13. |
| Resumo | |
We summarize the main properties of the so called "abnormal solutions" of the Wick-Cutkosky model, i.e. two massive scalar particles interacting via massless scalar exchange ("photons"), within the Bethe-Salpeter equation. These solutions do not exist in the non-relativistic limit, in spite of having very small binding energies. They present a genuine many-body character dominated by photons, with a norm of the valence constituent wave function (two-body norm) that vanishes in the limit of zero binding energy. We present new results concerning the massive-exchange case, in particular determine under which conditions is it possible to obtain such peculiar solutions without spoiling the model by tachyonic states (M-2<0). (AU) | |
| Processo FAPESP: | 22/10580-3 - Efeitos atômicos em reações de poucos nucleons em energia ultra-baixa |
| Beneficiário: | Tobias Frederico |
| Modalidade de apoio: | Auxílio à Pesquisa - Pesquisador Visitante - Internacional |