Spectra and decay properties of $\Lambda_b$ and $\Sigma_b$ baryons

TL;DR

This paper calculates the mass spectra, decay properties, and magnetic moments of bottom baryons using a hypercentral Constituent Quark Model with screened potential, providing theoretical predictions for these particles.

Contribution

It introduces a non-relativistic hypercentral quark model with screened potential to analyze bottom baryon spectra and decay properties, comparing results with other approaches.

Findings

Mass spectra of $ ext{Λ}_b$ and $ ext{Σ}_b$ baryons are computed and compared with existing models.

Regge trajectories are plotted in the $(J, M^2)$ plane based on calculated spectra.

Decay widths and magnetic moments for ground states are estimated.

Abstract

In this article, we study the radial states as well as orbital states mass spectra of the nonstrange baryons from bottom family utilizing hypercentral Constituent Quark Model(hCQM), a non-relativistic approach by employing screened potential as confining potential with color Coulomb potential. The spin-spin, spin-orbital and tensor interaction are considered for hyperfine splitting calculation. The mass spectra calculated and compared with other theoretical approaches. The Regge trajectories has been plotted in $(J, M^2)$ plane using the calculated mass spectra. Further, the single-pion decay and radiative decay have been described and magnetic moments are determined for the ground state.