Hadro-Charmonium

Abstract

We argue that relatively compact charmonium states, $J/\psi$, $\psi (2S)$, ${\chi }_c$, can very likely be bound inside light hadronic matter, in particular inside higher resonances made from light quarks and/or gluons. The charmonium state in such binding essentially retains its properties, so that the bound system decays into light mesons and the particular charmonium resonance. Thus such bound states of a new type, which we call hadro-charmonium, may explain the properties of some of the recently observed resonant peaks, in particular of Y(4.26), Y(4.32-4.36), Y(4.66), and Z(4.43). We discuss further possible implications of the suggested picture for the observed states and existence of other states of hadro-charmonium and hadro-bottomonium.

4 pages, RevTeX

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• Quarkonia and their transitions
• Interference and binding effects in decays of possible molecular component of X(3872)
• A QCD Calculation of the Interaction of Quarkonium with Nuclei
• Measurement of the near-threshold $e^{+}{e}^{-}\to D\bar{D}$ cross section using initial-state radiation
• Evidence that the Y(4660) is a f_0(980)psi' bound state
• J/psi and eta_c in the nuclear medium: QCD sum rule approach
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• Fragmentation functions for axial-vector heavy tetraquarks: A TQ4Q1.1 update
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• Observation of Three Resonant Structures in the Cross Section of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{h}_c$
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• Exotic Heavy Hadrons
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• Exotic hadrons associated with $b$-quark