On the nature of the newly discovered ${\Omega }_c^0$ states

Abstract

The masses and residues of the radially excited heavy ${\Omega }_c^0$ and ${\Omega }_b^{-}$ baryons with spin-parity $J^P={\frac{1}{2}}^{+}$ and $J^P={\frac{3}{2}}^{+}$ are calculated by means of QCD two-point sum rule method using the general form of their interpolating currents. In calculations the quark, gluon and mixed vacuum condensates up to ten dimensions are taken into account. In ${\Omega }_c^0$ channel a comparison is made with the narrow excited states recently observed by the LHCb Collaboration.

4 Pages and 5 Tables

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• Revisit assignments of the new excited ${\Omega }_c$ states with QCD sum rules
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• Interpretation of excited ${\Omega }_b$ signals
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• A Study of Excited ${\Omega }_b^{-}$ States in Hypercentral Constituent Quark Model via Artificial Neural Network
• Analysis of the 1S and 2S states of the ${\Lambda }_Q$ and ${\Xi }_Q$ with the QCD sum rules
• Refining radiative decay studies in singly heavy baryons
• ${\mathbf{\Omega }}_{\mathbf{b}}^{-}\to ({\mathbf{\Xi }}_{\mathbf{c}}^{+}{\mathbf{K}}^{-}){\mathbf{\pi }}^{-}$ and the ${\mathbf{\Omega }}_{\mathbf{c}}$ states
• Newly discovered ${\Xi }_c^0$ resonances and their parameters
• Analysis of the D-wave $\Sigma$-type charmed baryon states with the QCD sum rules
• On the nature of ${\Xi }_c(2930)$
• Properties of ${\Sigma }_Q^{\ast }$, ${\Xi }_Q^{\ast }$ and ${\Omega }_Q^{\ast }$ heavy baryons in cold nuclear matter
• Restudy of the color-allowed two-body nonleptonic decay of bottom baryons ${\Xi }_b$ and ${\Omega }_b$ supported by hadron spectroscopy
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• Axial-tensor Meson Family at $T\ne 0$
• Semileptonic Decay of ${\Omega }_c^0\to {\Xi }^{-}{l}^{+}{\nu }_l$ From Light-Cone Sum Rules
• Properties of spin-1/2 heavy baryons at nonzero temperature
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• Baryons and baryoniums in the perspective of QCD sum rules
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• Radiative ${\Xi }_b^{-}\to {\Xi }^{-}\gamma$ decay