| Texto completo | |
| Autor(es): |
Ren, Xiu-Lei
;
Malabarb, Brenda B.
;
Geng, Li-Sheng
;
Khemchandani, K. P.
;
Martinez Torres, A.
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Physics Letters B; v. 785, p. 6-pg., 2018-10-10. |
| Resumo | |
Inspired by the recent discovery of the pentaquark states P-c(4450) and P-c(4380), which can be viewed as excited nucleon states with hidden charm, we study the three-body interaction of a kaon and a pair of D (D) over bar* in isospin 0 and 1. We show that the two body interactions stringently constrained by the existence of the D-s0*(2317), D-s1*(2460), X(3872), and Z(c)(3900), which are widely believed to contain large DK, D*K, and D (D) over bar* components, inevitably lead to the existence of a heavy K* meson with hidden charm. Concrete coupled channel three-body calculations yield its mass and width as (4307 +/- 2) - i(9 +/- 2) MeV with I(J(P)) = 1/2(1(-)). This state, if found experimentally, definitely cannot be accommodated in a q (q) over bar picture, and therefore presents a clear case of an exotic hadron. (c) 2018 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license. (AU) | |
| Processo FAPESP: | 12/50984-4 - Física de hádrons |
| Beneficiário: | Fernando Silveira Navarra |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |