Fully-heavy hexaquarks in a constituent quark model

TL;DR

This paper investigates the mass spectra of fully-heavy hexaquarks using a constituent quark model, finding they are unstable and likely exist as resonances rather than stable particles.

Contribution

It provides a systematic analysis of fully-heavy hexaquarks' masses within a detailed constituent quark model, including various interactions.

Findings

All fully-heavy hexaquarks are above baryon-baryon thresholds.

They are unstable and decay into two heavy baryons.

Potential to observe these states as resonances in experiments.

Abstract

In this work, we systematically investigate the mass spectra of fully-heavy hexaquarks within a constituent quark model by including the color Coulomb potential, linear confining potential, and spin-spin interactions. Our results show that all of the fully-heavy hexaquarks lie above the corresponding baryon-baryon thresholds, and thus no stable compact one exists. These states may subsist as resonances and decay into two fully-heavy baryons easily through the fall-apart mechanism, which can be searched in future experiments.