Stability of Multiquark Systems

TL;DR

This paper reviews the stability of exotic multiquark hadrons, especially those with heavy flavors, highlighting differing predictions from gluon exchange and chiral constituent quark models.

Contribution

It compares two theoretical models' predictions on multiquark stability, emphasizing the contrasting results for systems with heavy flavors.

Findings

Gluon exchange model and chiral quark model yield different stability predictions.

Heavy flavor multiquark systems show model-dependent stability results.

The review summarizes recent developments in exotic hadron research.

Abstract

We give a brief review of developments in the field of exotic hadrons formed of more than three quarks and/or antiquarks. In particular we discuss the stability of multiquark systems containing heavy flavours. We show that the gluon exchange model and the chiral constituent quark model based on Goldstone boson (pseudoscalar meson) exchange give entirely different results.