1301.1877 (Benjamin Svetitsky)

Conformal or confining -- results from lattice gauge theory for
higher-representation gauge theories    [PDF]

Benjamin Svetitsky

We have calculated the running coupling in SU(2), SU(3), and SU(4) gauge theories to see whether they have infrared fixed points. An infrared fixed point means no confinement: It means that the long-distance physics is conformal, without a mass scale and indeed without a particle spectrum. All these theories run slowly in perturbation theory, so a nonperturbative determination is interesting.

View original: http://arxiv.org/abs/1301.1877