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2009-04-11 - Article/Dans un journal avec peer-review - Anglais - 32 page(s)

Grard Fernand , Nuyts Jean , "Kaluza-Klein towers in warped spaces with metric singularities" in Nuclear Physics B, 811, 123-154

  • Edition : Elsevier Science, Amsterdam (The Netherlands)
  • Codes CREF : Physique des particules élémentaires (DI1221), Physique atomique et nucléaire (DI1224), Physique théorique et mathématique (DI1210), Mécanique quantique classique et relativiste (DI1211)
  • Unités de recherche UMONS : Physique théorique et mathématique (S814), Physique nucléaire et subnucléaire (S824)
Texte intégral :

Abstract(s) :

(Anglais) All the boundary conditions compatible with the reduction of a five dimensional spinor field of bulk mass $M$ in a compactified warped space to a four dimensional brane are derived from the hermiticity conditions of the relevant operator. The possible presence of metric singularities is taken into account. Examples of resulting Kaluza-Klein spinor towers are given for a representative set of values for the basic parameters of the model and of the parameters describing the allowed boundary conditions, within the hypothesis that there exists one-mass-scale-only, the Planck mass. In many cases, the lowest mass in the tower is small and very sensitive to the parameters while the other masses are much higher and become more regularly spaced. In these cases, if a basic fermion of the standard model (lepton or quark) happens to be the lowest mass of a Kaluza-Klein tower, the other masses would be much larger and weakly dependent on the fermion which defines the tower.

Identifiants :
  • EPRINT : arXiv:0712.3692 [hep-th]
  • DOI : 10.1016/j.nuclphysb.2008.11.016