Work

Lattice Evidence that Scalar Glueballs Are Small

Year: 2025

Type: article

Abstract: This Letter 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.

Source: Physical Review Letters

DOI: 10.1103/67xg-qxhz

Authors: Ryan Abbott, Daniel C. Hackett, Dimitra A. Pefkou, Fernando Romero-López, Phiala E. Shanahan

Institutions: Massachusetts Institute of Technology, Fermi National Accelerator Laboratory, Lawrence Berkeley National Laboratory, University of California, Berkeley, University of Bern

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,750