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arXiv · 1507.07232

Exotic mesons with hidden charm as diquark-antidiquark states

V. V. Anisovich·M. A. Matveev·A. V. Sarantsev·A. N. Semenova
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Abstract

Exotic mesons with hidden strange ($s\bar s$) and heavy quark pairs ($Q\bar Q$), where $Q=c,b$, are considered as diquark-antidiquark systems, $(Qs)(\bar Q\bar s)$. 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 $((Qq)(\bar Q \bar q)$, ($(Qs)(\bar Q\bar s$)), ($(Qq)(\bar Q\bar s))$- states ($q=u,d$) is suggested.

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V. V. Anisovich, M. A. Matveev, A. V. Sarantsev, A. N. Semenova. 2015-07-26. Exotic mesons with hidden charm as diquark-antidiquark states. https://doi.org/10.1142/s0217751x15501869

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