QCD sum rule evaluation of a tensor all-charm tetraquark yields mass 6609±50 MeV and width 165±23 MeV, supporting its role as a key component of the observed X(6600) resonance.
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Resonance $X(6600)$
QCD sum rule evaluation of a tensor all-charm tetraquark yields mass 6609±50 MeV and width 165±23 MeV, supporting its role as a key component of the observed X(6600) resonance.