Study of the mass spectra of doubly heavy $Ξ_{QQ^{\prime}}$ and $Ω_{QQ^{\prime}}$ baryons
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| Format: | Preprint |
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2025
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| _version_ | 1866915533134233600 |
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| author | Pan, Ji-Hai Pan, Ji-Si |
| author_facet | Pan, Ji-Hai Pan, Ji-Si |
| contents | LHCb Collaboration first observed a doubly charmed baryon $Ξ^{++}_{cc}$ in the $Λ^{+}_{c}K^{-}π^{+}π^{+}$ decay with a mass of $3621.40\pm0.72\pm0.27$ MeV. In this paper, we enumerated the mass spectra of the radial and orbital excited states for the doubly heavy $Ξ_{QQ^{\prime}}$ and $Ω_{QQ^{\prime}}$ baryons using the Regge trajectory model and the scaling rules. Our studies suggest that $Ξ^{++}_{cc}$ can be grouped into the $1S$-wave state with the spin-parity quantum number $J^{P} = 1/2^{+}$. On the other hand, the mass of $Ξ_{cc}$ state with $J^{P} = 3/2^{+}$ is predicted to be $3699.69 \pm 4.59$ MeV. We also predict the mass spectra of the unknown ground and excited states for the doubly heavy $Ξ_{QQ^{\prime}}$ and $Ω_{QQ^{\prime}}$ baryons, which provide useful references for the experimental test in the future. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_01088 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Study of the mass spectra of doubly heavy $Ξ_{QQ^{\prime}}$ and $Ω_{QQ^{\prime}}$ baryons Pan, Ji-Hai Pan, Ji-Si High Energy Physics - Phenomenology LHCb Collaboration first observed a doubly charmed baryon $Ξ^{++}_{cc}$ in the $Λ^{+}_{c}K^{-}π^{+}π^{+}$ decay with a mass of $3621.40\pm0.72\pm0.27$ MeV. In this paper, we enumerated the mass spectra of the radial and orbital excited states for the doubly heavy $Ξ_{QQ^{\prime}}$ and $Ω_{QQ^{\prime}}$ baryons using the Regge trajectory model and the scaling rules. Our studies suggest that $Ξ^{++}_{cc}$ can be grouped into the $1S$-wave state with the spin-parity quantum number $J^{P} = 1/2^{+}$. On the other hand, the mass of $Ξ_{cc}$ state with $J^{P} = 3/2^{+}$ is predicted to be $3699.69 \pm 4.59$ MeV. We also predict the mass spectra of the unknown ground and excited states for the doubly heavy $Ξ_{QQ^{\prime}}$ and $Ω_{QQ^{\prime}}$ baryons, which provide useful references for the experimental test in the future. |
| title | Study of the mass spectra of doubly heavy $Ξ_{QQ^{\prime}}$ and $Ω_{QQ^{\prime}}$ baryons |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2502.01088 |