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arXiv · 1705.06160

Quasigluon lifetime and confinement from first principles

Fabio Siringo
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Abstract

The mass and the lifetime of a gluon are evaluated from first principles at 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.

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Fabio Siringo. 2017-05-17. Quasigluon lifetime and confinement from first principles. https://doi.org/10.1103/physrevd.96.114020

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