Molecular and compact four-quark states

TL;DR

This paper investigates various four-quark states using a non-relativistic quark potential model, aiming to identify bound states and differentiate between molecular and compact configurations.

Contribution

It provides a systematic analysis of four-quark states, distinguishing between molecular and compact states within a non-relativistic potential framework.

Findings

Identification of potential bound four-quark states

Distinction between molecular and compact configurations

Insights into the structure of exotic states

Abstract

We study charmonium ($c\bar c n\bar n$), bottomonium ($b\bar b n\bar n$) and exotic ($cc\bar n\bar n$ and $bb\bar n\bar n$) four-quark states by means of a standard non-relativistic quark potential model. We look for possible bound states. Among them we are able to distinguish between meson-meson molecules and compact four-quark states.