Speaker
Description
In 2020, there are four narrow states of $\Omega_b$ baryon listed by Particle Data Group (PDG) \cite{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 them 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.
References:
1. R.L. Workman et al. (Particle Data Group), Prog. Theor. Exp. Phys. 2022, 083C01 (2022).
2. LHCb collaboration, (R. Aaij et. al.), Phys.Rev.Lett. {\bf 124} 8, 082002 (2020).
3. D. Jia, J. H. Pan, C. Q. Pang, {\it Eur. Phys. J. C} {\bf 81}, 434 (2021).
4. Zalak Shah, Amee Kakadiya, Keval Gandhi and Ajay Kumar Rai, Properties of Doubly Heavy Baryons, \textit{Universe} \textbf{7}, 337 (2021).
5. Amee Kakadiya, Zalak Shah, Keval Gandhi and Ajay Kumar Rai, Few-Body Syst. 63, 29 (2022).
6. Amee Kakadiya, Zalak Shah and Ajay Kumar Rai, International Journal of Modern Physics A \textbf{37}, No. 11n12, 2250053 (2022).
| Session | Quark and Lepton Flavour Physics |
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