Adiabaticity and color mixing in tetraquark spectroscopy

TL;DR

This paper investigates how color mixing affects tetraquark spectroscopy by comparing pairwise potentials with string models that include multi-body forces, aiming to clarify the impact of confinement dynamics versus color treatment approximations.

Contribution

It introduces a comparative analysis of simple pairwise and advanced string models in tetraquark calculations, highlighting the effects of color mixing and confinement dynamics.

Findings

Color mixing significantly influences tetraquark state predictions.

String models with multi-body forces provide a more detailed confinement description.

Disentangling confinement dynamics from color treatment improves understanding of tetraquark structure.

Abstract

We revisit the role of color mixing in the quark-model calculation of tetraquark states, and compare simple pairwise potentials to more elaborate string models with three- and four-body forces. We attempt to disentangle the improved dynamics of confinement from the approximations made in the treatment of the internal color degrees of freedom.