Conformal or confining - Results from lattice gauge theory for higher-representation gauge theories

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Abstract

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.

Original languageEnglish
JournalProceedings of Science
StatePublished - 2012
Event10th Conference on Quark Confinement and the Hadron Spectrum, Confinement 2012 - Munich, Germany
Duration: 8 Oct 201212 Oct 2012

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