Dibaryons with two heavy quarks

TL;DR

This paper develops relativistic six-quark equations to calculate the masses of heavy-light dibaryons, providing a theoretical framework for understanding these exotic states involving charm and bottom quarks.

Contribution

It introduces a novel relativistic six-quark model and approximate solutions for dibaryons with heavy quarks, expanding theoretical predictions of their properties.

Findings

Calculated masses of charmed and bottom dibaryons.

Identified poles corresponding to specific isospins and spins.

Provided a new theoretical approach for heavy dibaryon spectroscopy.

Abstract

The relativistic six-quark equations are constructed in the framework of the dispersion relation technique. The relativistic six-quark amplitudes of dibaryons including the light $u$, $d$ and heavy $c$, $b$ quarks are calculated. The approximate solutions of these equations using the method based on the extraction of leading singularities of the heavy hexaquark amplitudes are obtained. The poles of these amplitudes determine the masses of charmed and bottom dibaryons with the isospins I=0, 1, 2 and the spin-parities $J^P=0^+$, $1^+$, $2^+$.