Hadro-Charmonium

By S. Dubynskiy, M. Voloshin. 2008

228 citations recorded by the source corpus.

We argue that relatively compact charmonium states, J/ψ, ψ(2S), χc, 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.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/8dcc74b65877a1eec8a6257234ea2589a42f0dfa

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In Nuclear and High Energy Physics

1. T. Skwarnicki
2. Alessandro Pilloni
3. A. Esposito
4. S. Olsen
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7. E. Swanson
8. J. Lange

Citations in the corpus

• Multiquark States (2017, background): “Many of the vector states to be described in the next section may admit of a hadrocharmonium explanation [36].”
• Heavy-quark QCD exotica (2016, background): “[44], a value of MX exceeding 1 GeV, perhaps approaching 2 GeV, is necessary for the net effect of all interactions to give binding for the hadrocharmonium system.”
• Hadronic molecules (2017, unknown): “(Kalashnikova and Nefediev, 2016)) or a hadrocharmonium state (Dubynskiy and Voloshin, 2008; Li and Voloshin, 2014).”
• Exotic Hadrons: Review and Perspectives (2016, unknown): “[188] S.”
• Exotics: Heavy pentaquarks and tetraquarks (2017, methodology): “Prior to the LHCb analysis there had been other proposals explaining the X(4140) including a molecular state [279–287], or a tetraquark state [288–292], hadrocharmonium [46], or a hybrid state [293,294].”
• The XYZ states: Experimental and theoretical status and perspectives (2019, background): “[188] this picture is applied to the ψ(4260) aka Y(4260) 7, ψ(4360) aka Y(4360), ψ(4660) aka Y(4660) and Zc(4430).”
• Nonstandard heavy mesons and baryons: Experimental evidence (2017, methodology): “hadrocharmonium model was proposed by Dubynskiy and Voloshin (141) in order to account for this property.”
• Multiquark Resonances (2016, background): “It is also generally expected for each diagonal term to be larger than the off-diagonal one [149].”