K* mesons with hidden charm arising from KX(3872) and KZ(c)(3900) dynamics

Autor(es)

Ren, Xiu-Lei ; Malabarb, Brenda B. ; Geng, Li-Sheng ; Khemchandani, K. P. ; Martinez Torres, A.

• 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