Abstract
In the past year, a new non-supersymmetric framework for
electroweak symmetry breaking (with or without Higgs) involving
SU(2)L × SU(2)R × U(1)B−L
in higher dimensional warped geometry has been suggested. In
this work, we embed this gauge structure into a GUT such as
SO(10)
or Pati–Salam. We showed recently (in hep-ph/0403143) that in a warped GUT,
a stable Kaluza–Klein fermion can arise as a consequence of imposing proton
stability. Here, we specify a complete realistic model where this particle is a weakly
interacting right-handed neutrino, and present a detailed study of this new dark
matter candidate, providing relic density and detection predictions. We discuss
phenomenological aspects associated with the existence of other light (
) KK fermions (related to the neutrino), whose lightness is a direct consequence of the
top quark's heaviness. The AdS/CFT interpretation of this construction is also
presented. Most of our qualitative results do not depend on the nature of the
breaking of the electroweak symmetry provided that it happens near the TeV brane.