Mass Spectra of Singly Beauty $\varvec{\varOmega _b^{-}}$ Baryon

Abstract

The mass spectra of singly bottom baryon $\varOmega _b^{-}$ is determined using the Hypercentral Constituent Quark Model. The confinement potential is assumed in the hyper central co-ordinates as hyper coulomb plus power potential. The ground state $m_{\varOmega _b^{-}}= 6048.8 \pm 3.2$ MeV with $J^{P}= \frac{1}{2}^{+}$ is found experimentally till now. Our calculated mass spectra for $\varOmega _b^{-}$ is obtained by varying potential index $\nu$ value from 0.5 to 2.0 for ground and radial excited states while orbital excited states are determined at $\nu =1.0$. Lattice QCD results and other recent theoretical predicted masses are close to our obtained results. Using these mass spectra we plotted Regge trajectories in (n, $M^{2}$) and (J, $M^{2}$) planes. The trajectories are useful to determine the unknown $J^{P}$ values of particular states.