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2007-01-19 - Article/Dans un journal avec peer-review - Anglais - 13 page(s)

Brihaye Yves , Radu Eugen, Tchrakian D.H., "Einstein-Yang-Mills solutions in higher dimensional de Sitter spacetime" in Physical Review. D : Particles and Fields, 75, 2, 024022-024034

  • Edition : American Physical Society, College Park (MD)
  • Codes CREF : Physique des particules élémentaires (DI1221), Physique théorique et mathématique (DI1210)
  • Unités de recherche UMONS : Physique théorique et mathématique (S814)
Texte intégral :

Abstract(s) :

(Anglais) We consider particlelike and black hole solutions of the Einstein-Yang-Mills system with positive cosmological constant in d>4 spacetime dimensions. These configurations are spherically symmetric and present a cosmological horizon for a finite value of the radial coordinate, approaching asymptotically the de Sitter background. In the usual Yang-Mills case, we find that the mass of these solutions, evaluated outside the cosmological horizon at future/past infinity, generically diverges for d>4. Solutions with finite mass are found by adding to the action higher order gauge field terms belonging to the Yang-Mills hierarchy. A discussion of the main properties of these solutions and their differences from those of the usual Yang-Mills model, both in four and higher dimensions, is presented.

Notes :
  • (Anglais) e-print: gr-qc/0610087
Identifiants :
  • DOI : 10.1103/PhysRevD.75.024022