par Antoniou, Ioannis 
;Gadella, Manuel;Pronko, G.P.
Référence Chaos, solitons and fractals, 12, 14-15, page (2737-2746)
Publication Publié, 2001-11
;Gadella, Manuel;Pronko, G.P.Référence Chaos, solitons and fractals, 12, 14-15, page (2737-2746)
Publication Publié, 2001-11
Article révisé par les pairs
| Résumé : | We study a model of cubic interaction between two scalar fields with a scattering resonance. The resonance manifests as two poles of the analytic continuations of the Green function with respect to energy. The Gamow vectors associated to these resonances acquire meaning in suitable rigged Fock spaces. Finally, we discuss some properties of the S-matrix for unstable fields. © 2001 Elsevier Science Ltd. |
