The spectrum of scalar-meson nonets in the Resonance-Spectrum Expansion

TL;DR

This paper explores the structure of scalar-meson nonets within the Resonance-Spectrum Expansion, proposing they form part of an infinite family of quark-antiquark states and resonances, and discusses their properties.

Contribution

It introduces the concept that low-lying scalar-meson nonets are part of an infinite hierarchy of similar states within the Resonance-Spectrum Expansion framework.

Findings

Scalar-meson nonets are part of an infinite family of states.

Properties of this subset are characterized.

Supports the idea of an infinite spectrum of quark-antiquark resonances.

Abstract

We argue that the low-lying scalar-meson nonet makes part of a subset of a family of infinitely many scalar-meson nonets, which in turn makes part of a family of infinitely many quark-antiquark bound states and resonances. We outline the properties of this subset.