Exotic mesons with hidden charm as diquark-antidiquark states

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.

20 pages, 10 figures

References in corpus (7)

• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
• Observation of the resonant character of the $Z(4430{)}^{-}$ state
• Measurement of e^+e^- to pi^+pi^-J/psi Cross Section via Initial State Radiation at Belle
• Evidence for a Narrow Near-Threshold Structure in the $J/\psi \varphi$ Mass Spectrum in $B^{+}\to J/\psi \varphi K^{+}$ Decays
• Search for new charmonium states in the processes e+ e- --> J/psi D(*) D(*) at sqrt{s} ~ 10.6 GeV
• Measurement of the near-threshold $e^{+}{e}^{-}\to D\bar{D}$ cross section using initial-state radiation

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