Spin-Parity Assignment and Decay Properties of \(\Omega _b\) Baryon
摘要
In 2020, there are four narrow states of \(\Omega _b\) baryon are listed by Particle Data Group (PDG), having one star status, which have no confirmed \(J^p\) value. The resonance masses are: \(\Omega _b(6315)^-\) , \(\Omega _b(6330)^-\) , \(\Omega _b(6340)^-\) , and \(\Omega _b(6350)^-\) . Using the hypercentral approach, we enumerated masses of the excited states of \(\Omega _b\) baryon. In Hypercentral Constituent Quark Model (hCQM), the screening potential is employed as confining potential with color-Coulomb potential. We determine the possible \(J^p\) values for these four newly observed \(\Omega _b\) states and compared with results obtained by other theoretical approaches. Furthermore, the properties of \(\Omega _b\) baryon have been studied. The ground state magnetic moment (spin \(\frac{1}{2}\) and \(\frac{3}{2}\) ), transition magnetic moment, radiative decay width and strong decay width are calculated using the enumerated mass spectra.