S-wave bottom tetraquarks

TL;DR

This paper develops relativistic four-quark equations within a coupled-channel framework to predict the masses and widths of S-wave bottom tetraquarks by analyzing their amplitudes and dynamical mixing with meson-meson states.

Contribution

It introduces a novel relativistic four-quark formalism incorporating coupled-channel effects for bottom tetraquarks, including dynamical mixing with meson-meson states.

Findings

Predicted masses of S-wave bottom tetraquarks.

Calculated widths of bottom tetraquark states.

Demonstrated the importance of coupled-channel effects.

Abstract

The relativistic four-quark equations are found in the framework of coupled-channel formalism. The dynamical mixing of the meson-meson states with the four-quark states is considered. The four-quark amplitudes of the tetraquarks, including $u$, $d$, $s$ and bottom quarks, are constructed. The poles of these amplitudes determine the masses and widths of $S$-wave bottom tetraquarks.