Hadron mass generation and the strong interaction

TL;DR

This paper presents a gluon-based model for hadron mass generation, predicting new states and aligning well with experimental data on mesons, emphasizing quark binding effects in mass formation.

Contribution

It introduces a novel model linking gluon vacuum fluctuations to hadron masses, predicting additional states and providing a unified explanation for meson spectra.

Findings

Good agreement with experimental meson data

Prediction of new scalar and charm states

Supports quark binding as key to hadron masses

Abstract

Based on a Lagrangian with a coupling of two gluons to J^pi=0^+ (the quantum numbers of the vacuum) which decay to q-qbar pairs, a model is presented, in which hadrons couple directly to the absolute vacuum of fluctuating gluon fields. By self-consistency requirements the confinement potential as well as hadron densities and masses are obtained, which are in good agreement with experimental data on scalar and vector mesons. In comparison with potential models additional states are predicted, which can explain the large continuum of scalar states in the low mass spectrum and new states in the charm region. The present model is consistent with the concept, that the hadron masses can be understood by binding effects of the quarks.