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