The few body problem of the quark-model hadron structure

TL;DR

This paper reviews recent advances in quark-model hadron spectroscopy and interactions, emphasizing the importance of higher order Fock space components and adapting few-body techniques to understand low-energy QCD phenomena.

Contribution

It introduces a framework combining few-body techniques with quark models to better describe low-energy hadron phenomenology and interpret experimental data.

Findings

Higher order Fock components influence low-energy observables

A coherent quark-model description of hadron phenomenology is developed

Adaptation of few-body techniques to many-quark systems is demonstrated

Abstract

We discuss recent results of hadron spectroscopy and hadron-hadron interaction within a quark model framework. New experimental data could point to the important role played by higher order Fock space components on low-energy observables. Our aim is to obtain a coherent description of the low-energy hadron phenomenology to constrain QCD phenomenological models and try to learn about low-energy realizations of the theory. This long-range effort is based in adapting few-body techniques to study many-quark systems.