Triply heavy baryon spectroscopy revisited

Abstract

We present a comprehensive study of triply heavy baryons (${\Omega }_{ccc}$, ${\Omega }_{bbb}$, ${\Omega }_{bcc}$, and ${\Omega }_{bbc}$) within the nonrelativistic quark model, employing the Gaussian expansion method to calculate mass spectra up to $D$-wave states. Our analysis represents the most complete treatment to date for this model, incorporating full angular momentum mixing effects. While our predictions for low-lying states agree well with lattice quantum chromodynamics (QCD) results, we find systematically lower masses for excited states compared to lattice calculations. Using the obtained wave functions, we estimate radiative decay widths up to $1D$ states, revealing significant differences from previous theoretical work. Additionally, we identify and resolve several misconceptions in prior treatments of triply heavy baryon spectroscopy, particularly symmetry constraint and wave function construction in three-quark systems. These results provide crucial information for future experimental searches and theoretical investigations of triply heavy baryon systems.

arXiv comment16 pages, 2 figures, 10 tables, published in Phys. Rev. D

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• Triply Heavy $\Omega$ Baryons with JETHAD: A High-Energy Viewpoint
• Mass spectrum, magnetic moments and Regge trajectories of ${\Omega }_{ccb}$ and ${\Omega }_{cbb}$ baryons in the nonrelativistic quark--diquark model
• The nonleptonic decays of double-charmed baryon ${\Omega }_{cc}^{+}$ within the nonrelativistic quark model
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• Assessing the validity of the Born-Oppenheimer approximation in potential models for doubly heavy hadrons
• Spectroscopy and Radiative Decays of ${\Omega }_{ccc}$ and ${\Omega }_{bbb}$ Baryons in a Quark-Diquark Model