Higgs mechanism in five-dimensional gauge theories

Abstract

Lattice simulations of five-dimensional gauge theories on an orbifold revealed that there is spontaneous symmetry breaking. Some of the extra-dimensional components of the gauge field play the role of a Higgs field and some of the four-dimensional components become massive gauge bosons. The effect is confirmed by computing the Coleman-Weinberg potential with a cutoff. We compare the results of this computation with the lattice data.

Comments: Talk presented at Lattice2007, Regensburg, July 30 - August 4, 2007; 7 pages, 5 figures, typos corrected