Quarks, Hadrons, and Emergent Spacetime

TL;DR

This paper explores how the emergence of space might be understood from the fundamental quark and hadron level, proposing new perspectives on mass, distance scales, and baryon structure.

Contribution

It introduces a novel approach linking quark/hadron properties to the emergence of space, including generalized mass concepts and phenomenological insights from baryon spectroscopy.

Findings

Relation between hadronic resonances and spacetime emergence

Generalized mass concept from phase-space considerations

Implications for excited baryon structure

Abstract

It is argued that important information on the emergence of space is hidden at the quark/hadron level. The arguments follow from the acceptance of the conception that space is an attribute of matter. They involve in particular the discussion of possibly relevant mass and distance scales, the generalization of the concept of mass as suggested by the phase-space-based explanation of the rishon model, and the phenomenological conclusions on the structure of excited baryons that are implied by baryon spectroscopy. A counterpart of the Eddington-Weinberg relation concerning Regge towers of hadronic resonances is noted.