${\eta }_{\mathrm{c}}$- and $J/\psi$-isoscalar meson bound states in the hadro-charmonium picture

Abstract

We study ${\eta }_{\mathrm{c}}$- and $J/\psi$-isoscalar meson bound states in the hadro-charmonium picture. In the hadro-charmonium, the four $q\bar{q}c\bar{c}$ quarks are arranged in terms of a compact charm-anticharm pair, $c\bar{c}$, embedded in light hadronic matter, $q\bar{q}$, with $q=u$, $d$ or $s$. The interaction between the charmonium core and the light matter can be written in terms of the multipole expansion in QCD, with the leading term being the $E1$ interaction with chromo-electric field ${\mathbf{E}}^a$. The spectrum of ${\eta }_{\mathrm{c}}$- and $J/\psi$-isoscalar meson bound states is calculated and the results compared with the existing experimental data.

Accepted on Phys. Lett. B

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Cited by in corpus (11)

• The $XYZ$ states: experimental and theoretical status and perspectives
• Pentaquark and Tetraquark states
• Spectrum of fully-heavy tetraquarks from a diquark+antidiquark perspective
• Hidden-charm and bottom tetra- and pentaquarks with strangeness in the hadro-quarkonium and compact tetraquark models
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• The baryo-quarkonium picture for hidden-charm and bottom pentaquarks and LHCb $P_{\mathrm{c}}(4380)$ and $P_{\mathrm{c}}(4450)$ states
• Threshold corrections of ${\chi }_{\mathrm{c}}(2P)$ and ${\chi }_{\mathrm{b}}(3P)$ states and $J/\psi \rho$ and $J/\psi \omega$ transitions of the $X(3872)$ in a coupled-channel model
• Chromopolarizabilities of bottomonia from the ${\rm Y}(2S,3S,4S)\to {\rm Y}(1S,2S)\pi \pi$ transitions
• Threshold Effects in Heavy Quarkonium Spectroscopy and Decays
• Threshold effects in heavy quarkonium spectroscopy
• Chromopolarizability of charm-beauty quarkonium from $B_c(2S)\to B_c\pi \pi$ transition