Antistatic-antistatic-light-light potentials from lattice QCD

TL;DR

This paper computes tetraquark potentials involving two static anti-quarks and light quarks using lattice QCD, including off-axis separations and new quark flavor combinations, enhancing understanding of exotic hadrons.

Contribution

It introduces improved lattice QCD calculations for tetraquark potentials, including off-axis data and novel quark flavor configurations, advancing the study of exotic states.

Findings

Computed static potentials for off-axis separations.

First calculation of $ar b ar b u s$ potentials.

Enhanced data set for tetraquark interactions.

Abstract

We present results for tetraquark potentials of two static anti-quarks $\bar b \bar b$ in the presence of two light quarks $u$ and/or $d$. We improve on existing results by computing the static potential also for off-axis separations, which increases the number of data points significantly. Moreover, we compute for the first time $\bar b \bar b u s$ potentials.