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2013-03-01 - Colloque/Article dans les actes avec comité de lecture - Anglais - 23 page(s)

Giataganas Dimitrios, Lozano Yolanda, Siampos Konstantinos , "Non-singlet baryons in gauge/gravity duality" in PoS Corfu2012 (2013) 126 , Corfu, Greece, 2012

  • Codes CREF : Physique théorique et mathématique (DI1210), Gravitation (DI1216)
  • Unités de recherche UMONS : Mécanique et gravitation (S884)
  • Instituts UMONS : Institut de Recherche sur les Systèmes Complexes (Complexys)
  • Centres UMONS : Algèbre, Géométrie et Interactions fondamentales (AGIF)
Texte intégral :

Abstract(s) :

(Anglais) We analyze the holographic description of non-singlet baryons in various backgrounds with reduced supersymmetries and/or confinement. We show that they exist in all AdS5 ×Y5 backgrounds with Y5 an Einstein manifold bearing five form flux, for a number of quarks k\in(5N/8,N), independently on the supersymmetries preserved. In the confining Maldacena-Nunez background non-singlet baryons also exist, although in this case the interval for the number of quarks is reduced as compared to the conformal case. We generalize these configurations to include a non-vanishing magnetic flux such that a complementary microscopical description can be given in terms of lower dimensional branes expanding into fuzzy baryons. This description is a first step towards exploring the finite ’t Hooft coupling region.