Cascade (${\Xi }^0$) Baryon Spectroscopy in the Relativistic Framework of Independent Quark Model

Abstract

The spectroscopy of ${\Xi }^0$ is performed within the relativistic framework of independent quark model. The equal mixture of scalar and vector components in the potential having Martin-like form is considered for the confinement. With the suitable potential parameters for ${\Xi }^0$, mass spectra for high radial and orbital excitation is calculated. The experimentally observed values of ground state magnetic moment, branching ratios and asymmetry parameters for radiative weak decays, ${\Xi }^0\to {\Lambda }^0+{\gamma }^0$ \& ${\Xi }^0\to {\Sigma }^0+{\gamma }^0$ are obtained to validate the model. The spin parity of experimentally known resonances like $\Xi (1530)$, $\Xi (1820)$, \& $\Xi (2030)$ are confirmed through the Regge trajectories in $(J,M^2)$ plane. The spin pa+rity of $\Xi (1950)$, $\Xi (2130)$, \& $\Xi (2250)$ are predicted using those Regge trajectories. The radiative decay width and magnetic moment of first resonance is also predicted.

Comments: 10 Pages, 4 Figures, 8 Tables