1997/09/17 by Arttu Rajantie, Rajantie, Arttu
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9709368
5 pages, latex, 1 figure; to appear in the proceedings of SEWM '97, Eger, Hungary, 21-25 May 1997
arxiv created 1997/09/17 · arxiv updated 2009/11/30
I present a three-dimensional effective theory that describes the high-temperature equilibrium behavior of the SU(5) theory accurately, but is much easier to study using non-perturbative methods than the original four-dimensional one. The effective theory is obtained by perturbatively integrating out the super-heavy Matsubara modes as well as the heavy temporal component of the gauge field. Regardless of the particle spectrum of the original theory, the resulting three-dimensional theory contains only a gauge field and an adjoint Higgs field. The phase diagram of the theory is analysed perturbatively and it is shown to have a cellular structure in three-dimensional parameter space.