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Article Dans Une Revue Nuclear Physics B Année : 2003

Finite temperature Z(N) phase transition with Kaluza-Klein gauge fields

K. Farakos
  • Fonction : Auteur
P. de Forcrand
  • Fonction : Auteur
M. Laine
  • Fonction : Auteur
M. Vettorazzo
  • Fonction : Auteur

Résumé

If SU(N) gauge fields live in a world with a circular extra dimension, coupling there only to adjointly charged matter, the system possesses a global Z(N) symmetry. If the radius is small enough such that dimensional reduction takes place, this symmetry is spontaneously broken. It turns out that its fate at high temperatures is not easily decided with straightforward perturbation theory. Utilising non-perturbative lattice simulations, we demonstrate here that the symmetry does get restored at a certain temperature T_c, both for a 3+1 and a 4+1 dimensional world (the latter with a finite cutoff). To avoid a cosmological domain wall problem, such models would thus be allowed only if the reheating temperature after inflation is below T_c. We also comment on the robustness of this phenomenon with respect to small modifications of the model.

Dates et versions

hal-00008374 , version 1 (02-09-2005)

Identifiants

Citer

K. Farakos, P. de Forcrand, C. P. Korthals Altes, M. Laine, M. Vettorazzo. Finite temperature Z(N) phase transition with Kaluza-Klein gauge fields. Nuclear Physics B, 2003, 655, pp.170-184. ⟨hal-00008374⟩
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