QCD sum rules yield masses for I=0 negative-parity udsc c-bar pentaquarks that match the P_cs(4338) and P_cs(4459) states.
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QCD sum rules identify three possible molecular dibaryons: Λ_c Σ_c with J^P=1^+ and anti-Λ_c Σ_c with J^P=0^- and 1^-; the other five channels are assigned as resonances.
QCD sum rules give total decay widths of 326 MeV for Z_c^- (0^{--}) and 92 MeV for Z_c^+ (0^{-+}) pseudoscalar hidden-charm tetraquarks.
QCD sum rules applied to new color-bar3-bar3-bar3 currents give mass predictions for qssc anti-c pentaquarks with IJ^P = 1/2 1/2^-, 1/2 3/2^- and 1/2 5/2^-, indicating they are not scalar-diquark-scalar-diquark-antiquark states.
citing papers explorer
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Analysis of the hidden-charm pentaquark candidates in the $J/\psi \Lambda$ mass spectrum via the QCD sum rules
QCD sum rules yield masses for I=0 negative-parity udsc c-bar pentaquarks that match the P_cs(4338) and P_cs(4459) states.
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Search for the $\Lambda_c\Sigma_c$ and $\bar{\Lambda}_c\Sigma_c$ dibaryon structures via the QCD sum rules
QCD sum rules identify three possible molecular dibaryons: Λ_c Σ_c with J^P=1^+ and anti-Λ_c Σ_c with J^P=0^- and 1^-; the other five channels are assigned as resonances.
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Two-body strong decays of the pseudoscalar hidden-charm tetraquark states via the QCD sum rules
QCD sum rules give total decay widths of 326 MeV for Z_c^- (0^{--}) and 92 MeV for Z_c^+ (0^{-+}) pseudoscalar hidden-charm tetraquarks.
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Analysis of the hidden-charm pentaquark candidates in the $J/\psi \Xi$ mass spectrum via the QCD sum rules
QCD sum rules applied to new color-bar3-bar3-bar3 currents give mass predictions for qssc anti-c pentaquarks with IJ^P = 1/2 1/2^-, 1/2 3/2^- and 1/2 5/2^-, indicating they are not scalar-diquark-scalar-diquark-antiquark states.