QCD vacuum energy and its implication for quark nugget stability
Abstract
In this work, we employ both theoretical and data-driven methods to derive the QCD vacuum energy, utilizing the GMOR relation, the low-energy theorem, and the equation of state from lattice QCD. The QCD vacuum energy is determined to be between around ( 163 MeV ) 4 and ( 190 MeV ) 4 . With the assumptions of complete deconfinement, vanishing gluon condensate, full chiral-symmetry restoration, and the validity of perturbative QCD at baryon chemical potentials of order of the proton mass, a very specific kind of quark nugget is found to be less stable than ordinary nuclei.
Fields of Study & Subjects
High-Energy Particle Collisions Research
Quantum Chromodynamics and Particle Interactions
Pulsars and Gravitational Waves Research
Publication details
- Journal / source
- Physical review. D/Physical review. D.
- Volume
- 113
- Issue
- 11
- Publication date
- 26 May 2026
- Language
- EN