Predictions for Bottomonium from a Relativistic Screened Potential Model

Abstract

In this work, a comprehensive analysis of the mass spectra and decay properties of bottomonium states using a relativistic screened potential model is carried out. The mass spectrum, decay constants, $E1$ transitions, $M1$ transitions, and annihilation decay widths are evaluated. The interpretation of $\Upsilon(10355)$, $\Upsilon(10580)$,$\Upsilon(10860)$, and $\Upsilon(11020)$ as $S-D$ mixed bottomonium states are analysed. The $\Upsilon(10355)$ state is considered to be $3S-2D$, $\Upsilon(10580)$ state is considered to be $4S-3D$ mixed state, the $\Upsilon(10753)$ is obtained as purely $\Upsilon_{1}(3D)$ bottomonium state, and the $\Upsilon(10860)$ and $\Upsilon(11020)$ are deemed to be $5S-4D$ mixed states.