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arXiv · 2303.13976

Analysis of the D-wave $Σ$-type charmed baryon states with the QCD sum rules

Zhi-Gang Wang·Fei Lu·Yang Liu
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Abstract

We construct the $Σ$-type currents to investigate the D-wave charmed baryon states with the QCD sum rules systematically. The predicted masses $M=3.35^{+0.13}_{-0.18}\,\rm{GeV}$ ($3.33^{+0.13}_{-0.16}\,\rm{GeV}$), $3.34^{+0.14}_{-0.18}\,\rm{GeV}$ ($3.35^{+0.13}_{-0.16}\,\rm{GeV}$) and $3.35^{+0.12}_{-0.13}\,\rm{GeV}$ ($3.35^{+0.12}_{-0.14}\,\rm{GeV}$) for the $Ω_c(0,2,{\frac{1}{2}}^+)$, $Ω_c(0,2,{\frac{3}{2}}^+)$ and $Ω_c(0,2,{\frac{5}{2}}^+)$ states are in excellent agreement with the experimental data $ 3327.1\pm1.2 \mbox{ MeV}$ from the LHCb collaboration, and support assigning the $Ω_c(3327)$ to be the $Σ$-type D-wave $Ω_c$ state with the spin-parity $J^P={\frac{1}{2}}^+$, ${\frac{3}{2}}^+$ or ${\frac{5}{2}}^+$.

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Zhi-Gang Wang, Fei Lu, Yang Liu. 2023-06-30. Analysis of the D-wave $Σ$-type charmed baryon states with the QCD sum rules. https://doi.org/10.1140/epjc%2Fs10052-023-11852-w

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