Hidden-charm and radiative decays of the Z(4430) as a hadronic D-1(D)over-bar* bound state

Branz, Tanja; Gutsche, Thomas; Lyubovitskij, Valery E.

Abstract

We study the Z(4430)(+/-) meson within a heavy hadron molecule interpretation where the Z is considered as a bound state of a vector D*(2010) and an axial-vector D-1(2420). We give predictions for the strong hidden-charm Z(4430)(+/-) -> pi(+/-) psi and pi(+/-) psi' decay widths and also study the radiative Z(+/-)(J(P) = 1(-)) -> pi(+/-) gamma decay properties in a phenomenological Lagrangian approach. Our findings are qualitatively in line with the experimental observation that the pi(+/-) psi' transition dominates over the pi(+/-) psi decay mode despite a smaller phase space. The width for the radiative mode pi(+/-) gamma is sizable, allowing possible detection in future experiments.

Más información

Título según WOS: ID WOS:000282046500005 Not found in local WOS DB
Título de la Revista: PHYSICAL REVIEW D
Volumen: 82
Número: 5
Editorial: American Physical Society
Fecha de publicación: 2010
DOI:

10.1103/PhysRevD.82.054025

Notas: ISI