Study of the mass spectra of doubly heavy ${\Xi }_{Q{Q}^{\prime }}$ and ${\Omega }_{Q{Q}^{\prime }}$ baryons

Abstract

LHCb Collaboration first observed a doubly charmed baryon ${\Xi }_{cc}^{++}$ in the ${\Lambda }_c^{+}{K}^{-}{\pi }^{+}{\pi }^{+}$ decay with a mass of $3621.40\pm 0.72\pm 0.27$ MeV. In this paper, we enumerated the mass spectra of the radial and orbital excited states for the doubly heavy ${\Xi }_{Q{Q}^{\prime }}$ and ${\Omega }_{Q{Q}^{\prime }}$ baryons using the Regge trajectory model and the scaling rules. Our studies suggest that ${\Xi }_{cc}^{++}$ 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 ${\Xi }_{cc}$ 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 ${\Xi }_{Q{Q}^{\prime }}$ and ${\Omega }_{Q{Q}^{\prime }}$ baryons, which provide useful references for the experimental test in the future.

32 pages

References in corpus (23)

• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Spectroscopy and Regge trajectories of heavy baryons in the relativistic quark-diquark picture
• Charmed bottom baryon spectroscopy from lattice QCD
• Baryons with two heavy quarks: Masses, production, decays, and detection
• Towards an understanding of heavy baryon spectroscopy
• Baryon spectrum with $N_f=2+1+1$ twisted mass fermions
• Weak Decays of Doubly Heavy Baryons: the $1/2\to 1/2$ case
• Assignments of ${\Lambda }_Q$ and ${\Xi }_Q$ baryons in the heavy quark-light diquark picture
• Excited State Mass spectra of doubly heavy baryons ${\Omega }_{cc}$, ${\Omega }_{bb}$ and ${\Omega }_{bc}$
• Mass spectra and radiative transitions of doubly heavy baryons in a relativized quark model
• Spectroscopy of doubly-charmed baryons from lattice QCD
• Excited state mass spectra of doubly heavy $\Xi$ baryons
• Doubly heavy baryons in a Salpeter model with AdS/QCD inspired potential
• Masses and radiative decay widths of S- and P-wave singly-, doubly- and triply-heavy charm and bottom baryons
• Bethe-Salpeter equation for doubly heavy baryons in the covariant instantaneous approximation
• Precision measurement of the ${\Xi }_{cc}^{++}$ mass
• Hadronic Production of the Doubly Heavy Baryon ${\Xi }_{bc}$ at LHC
• Mass spectra of ${\Xi }_{cc}$, ${\Xi }_{bc}$, ${\Omega }_{cc}$, and ${\Omega }_{bc}$ baryons in Regge Phenomenology
• Lifetimes of Doubly Heavy Baryons ${\mathcal{B}}_{bb}$ and ${\mathcal{B}}_{bc}$
• $b$-hadron spectroscopy study based on the similarity of double bottom baryon and bottom meson
• The mass and residues of radially and orbitally excited doubly heavy baryons in QCD
• Spin-$\frac{3}{2}$ doubly charmed baryon contribution to the magnetic moments of the spin-$\frac{1}{2}$ doubly charmed baryons
• Spectroscopic Study of ${\Omega }_{cc}$, ${\Omega }_{cb}$ and ${\Omega }_{bb}$ Baryons

Cited by in corpus (1)

• Observation of the doubly charmed baryon ${\Xi }_{cc}^{+}$ with the LHCb Run 3 detector