2017/05/31 by Fabio Siringo · 1 citation
Mathematics · Physics and Astronomy · #Color confinement #Complex plane #Condensed matter physics #Deconfinement #Gauge theory #Gluon #High-Energy Particle Collisions Research #Mathematical analysis #Mathematical physics #Mathematics #Particle physics theoretical and experimental studies #Perturbation theory (quantum mechanics) #Physics #Propagator #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #hep-lat #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.96.114020
published as Phys. Rev. D 96, 114020 (2017) · Final published version
arxiv created 2017/12/19 · openalex publication_date 2017/12/19 · arxiv updated 2017/12/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The mass and the lifetime of a gluon are evaluated from first principles at a finite temperature across the deconfinement transition of pure SU(3) Yang-Mills theory, by a direct calculation of the pole of the propagator in the complex plane, using the finite temperature extension of a massive expansion in the Landau gauge. Even at T=0, the quasigluon lifetime is finite, and the gluon is canceled from the asymptotic states, yielding a microscopic proof of confinement from first principles. Above the transition, the damping rate is a linear increasing function of temperature as predicted by standard perturbation theory.