The possible tetraquark states $cc\bar{c}\bar{c}$ observed by the LHCb experiment

Abstract

We give a brief comment on the possible tetraquark states $cc\bar{c}\bar{c}$ observed by the LHCb experiment.

arXiv commentContribution to Science Bulletin as a NEWS & VIEWS Paper

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• Interpretation of structure in the di-$J/\psi$ spectrum
• Scalar Fully-heavy Tetraquark States $Q{Q}^{\prime }\bar{Q}\overline{Q^{\prime }}$ in QCD Sum Rules
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• Fully-heavy tetraquark production by $\gamma \gamma$ interactions in hadronic collisions at the LHC
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
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• Fully heavy pentaquarks in quark models
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• Improved understanding of the peaking phenomenon existing in the new di-$J/\psi$ invariant mass spectrum from the CMS Collaboration
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• Fully-heavy hexaquark states via the QCD sum rules
• Mass spectra for the $cc\bar{b}\bar{b}$/$bb\bar{c}\bar{c}$ tetraquark states
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• Superfactory of bottomed hadrons Belle II
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