Exotic mesons with hidden charm as diquark-antidiquark states

الأصل · EN

Exotic mesons with hidden strange (s s) and heavy quark pairs (Q Q), where Q=c,b, are considered as diquark-antidiquark systems, (Qs)(Q s). Taking into account that these states can recombinate into two-meson ones, we study the interplay of these states in terms of the dispersion relation D-function technique. The classification of exotic mesons is discussed, coefficients for decay modes are given, predictions for new states are presented. The nonet structure for ((Qq)(Q q), ((Qs)(Q s)), ((Qq)(Q s))- states (q=u,d) is suggested.