Triply charmed and bottom baryons in a constituent quark model
Mingsheng Liu, Qi-Fang Lü, Xian-Hui Zhong
Abstract
In this work, we study the mass spectrum of the ${\mathrm{\ensuremath{\Omega}}}_{ccc}$ and ${\mathrm{\ensuremath{\Omega}}}_{bbb}$ baryons up to the $N=2$ shell within a nonrelativistic constituent quark model. The model parameters are adopted to be the determinations by fitting the charmonium and bottomonium spectra in our previous works. The masses of the ${\mathrm{\ensuremath{\Omega}}}_{ccc}$ and ${\mathrm{\ensuremath{\Omega}}}_{bbb}$ baryon states predicted in the present work reasonably agree with the results obtained with the lattice QCD calculations. Furthermore, to provide more knowledge of the ${\mathrm{\ensuremath{\Omega}}}_{ccc}$ and ${\mathrm{\ensuremath{\Omega}}}_{bbb}$ states, we evaluate their radiative decays with the available masses and wave functions from the potential model.