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Interpretation of the new $\Omega_c^{0}$ states via their mass and width

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abstract

The mass and pole residue of the ground and first radially excited $ \Omega_c^{0}$ states with spin-parities $J^{P}=1/2^{+},\,3/2^{+}$, as well as P-wave $\Omega_c^{0}$ with $J^{P}=1/2^{-},\,3/2^{-}$ are calculated by means of the two-point QCD sum rules. The strong decays of $\Omega_c^{0}$ baryons are also studied and width of these decay channels are computed. The relevant computations are performed in the context of the full QCD sum rules on the light-cone. Obtained results for the masses and widths are confronted with recent experimental data of LHCb Collaboration, which allow us to interpret $\Omega_c(3000)^{0}$, $\Omega_c(3050)^{0}$, and $ \Omega_c(3119)^{0} $ as the excited $css$ baryons with the quantum numbers $ (1P,\,1/2^{-})$, $(1P,\,3/2^{-})$, and $(2S,\,3/2^{+})$, respectively. The $ (2S,\,1/2^{+})$ state can be assigned either to $\Omega_c(3066)^{0}$ state or $\Omega_c(3090)^{0}$ excited baryon.

fields

hep-ph 1

years

2026 1

verdicts

UNVERDICTED 1

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