Triply heavy tetraquark states in a mass-splitting model

TL;DR

This paper uses a modified chromomagnetic interaction model to systematically study the masses of triply-heavy tetraquark states, finding no stable candidates but providing decay width estimates to guide future experimental searches.

Contribution

It introduces a mass-splitting model to analyze triply-heavy tetraquark states and offers predictions for their masses and decay properties, aiding future experimental investigations.

Findings

No stable triply-heavy tetraquarks found due to high masses

Estimated partial decay widths and ratios for these states

Provided potential candidates based on mass and width predictions

Abstract

In a modified chromomagnetic interaction model, assuming $X(4140)$ to be the lowest $1^{++}$ $cs\bar{c}\bar{s}$ tetraquark and treating it as the reference state, we systematically investigated the masses of the triply-heavy tetraquark states $QQ\bar{Q}\bar{q}$ ($Q=c,b;q=u,d,s$). Because of their higher masses, no stable tetraquarks were found. Using a simple scheme, we also estimated the partial widths of the rearrangement decay channels and relevant ratios. A compact triply heavy tetraquark candidate would be favored if its observed mass and partial width ratios were comparable with our predictions. We hope that the present work will be helpful for further studies.