Lattice evidence that scalar glueballs are small

2025/08/29 by Ryan Abbott, Abbott, Ryan, Daniel C. Hackett +7 · 3 citations
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2508.21821

openalex publication_date 2025/08/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

This work reports the first calculation of the gravitational form factors (GFFs) of the scalar glueball, performed via lattice field theory in Yang-Mills theory at a single lattice spacing. The glueball GFFs are compared with those of other hadrons as determined in previous lattice calculations, providing strong indications that glueballs have a different gluonic structure than typical hadronic states. A mass radius of 0.263(31) fm is predicted, supporting previous suggestions that the scalar glueball is significantly smaller than other hadrons. These results point towards a potential smoking-gun characteristic to target by experimental glueball searches.

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Cited by

• Gluon Gravitational D-Form Factor: The σ-Meson as a Dilaton Confronted with Lattice Data II
• Investigating a two-level algorithm for fermionic observables
• Electromagnetic form factors and structure of the T_bb tetraquark from lattice QCD
• Gravitational D-Form Factor: The σ-Meson as a Dilaton confronted with Lattice Data

Related

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• Evidence for the Observation of a Glueball
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