Spectrum of fully-heavy tetraquarks from a diquark+antidiquark perspective

TL;DR

This paper employs a relativized diquark model to predict the masses of various fully-heavy tetraquarks and baryons, providing theoretical spectra that can be tested against upcoming experimental data.

Contribution

It introduces a comprehensive relativized diquark model to calculate masses of fully-heavy tetraquarks and baryons, extending previous approaches with detailed spectral predictions.

Findings

Predicted masses for multiple fully-heavy tetraquark states.

Computed spectra for various heavy quark flavor combinations.

Provided mass estimates for fully-heavy baryons as a model validation.

Abstract

Using a relativized diquark model Hamiltonian, we calculate the masses of $J^{PC}=0^{++}$ ground-state tetraquarks in the following systems: $b s \bar b \bar s$, $bb \bar n \bar n$ ($n=u, d$), $bb \bar s \bar s$, $cc\bar c \bar c$, $b b \bar b \bar b$, $b c\bar b \bar c$ and $b b \bar c \bar c$. We also compute extensive spectra for the fully-heavy quark flavour combinations. Finally, as a test of the diquark model approach, we compute the masses of fully-heavy baryons in the diquark model. Our results may be compared soon to the forthcoming experimental data for fully-heavy three-quark systems.