Spectroscopic Investigation of Light Strange S=-1 $\Lambda$, $\Sigma$ and S=-2 $\Xi$ Baryons

TL;DR

This study uses a hypercentral Constituent Quark Model to calculate resonance masses, magnetic moments, and decay properties of light strange baryons with S=-1 and S=-2, providing detailed spectroscopic data and Regge trajectories.

Contribution

It introduces comprehensive mass spectra, magnetic moments, and decay widths for light strange baryons using an improved quark model with linear confinement and first-order corrections.

Findings

Calculated resonance masses up to 4 GeV for multiple states.

Explored Regge trajectories confirming linearity.

Provided magnetic moments and decay widths for key baryons.

Abstract

The present study is dedicated to light-strange $\Lambda$ with strangeness S=-1, isospin I=0; $\Sigma$ with S=-1, I=1 and $\Xi$ baryon with S=-2 and $I=\frac{1}{2}$. In this article, hypercentral Constituent Quark Model with linear confining potential has been employed along with first order correction term to obtain the resonance masses for nearly upto 4 GeV. The calculated states include 1S-5S, 1P-4P, 1D-3D, 1F-2F and 1G (in few case) along with all the possible spin-parity assignments. Regge Trajectories have been explored for the linearly of the calculated masses for $(n,M^{2})$ and $(J,M^{2})$ respectively. Magnetic moments have been intensively studied for ground state spin $\frac{1}{2}$ and $\frac{3}{2}$, in addition to the configuration mixing for first negative parity state for $\Xi$. Lastly, transition magnetic moment and radiative decay width have been presented.