Phenomenology of Non-Custodial Warped Models

Abstract

We study the effect of bulk fermions on electroweak precision observables in a recently proposed model with warped extra dimensions and no custodial symmetry. We find that the top-quark mass, together with the corrections to the Zbb vertex and the one-loop contribution to the T parameter, which is finite, impose important constraints that single out a well defined region of parameter space. New massive vector bosons can be as light as 1.5 TeV and have large couplings to the t_R quark, and suppressed couplings to the t_L, b_L and lighter quarks. We discuss the implications for searches of models with warped extra dimensions at the LHC.

Most relevant one-loop contributions to EWP observables included, physics results partially changed. References added. 29 pages, 14 Figures

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• Higgs Searches and Extra Dimensions
• Studies on Generalized Warped Five-Dimensional Models