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arXiv · 1104.5253

Warped 5D Standard Model Consistent with EWPT

Joan A. Cabrer·Gero von Gersdorff·Mariano Quiros
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Abstract

For a 5D Standard Model propagating in an AdS background with an IR localized Higgs, compatibility of bulk KK gauge modes with EWPT yields a phenomenologically unappealing KK spectrum (m > 12.5 TeV) and leads to a "little hierarchy problem". For a bulk Higgs the solution to the hierarchy problem reduces the previous bound only by sqrt(3). As a way out, models with an enhanced bulk gauge symmetry SU(2)_R x U(1)_(B-L) were proposed. In this note we describe a much simpler (5D Standard) Model, where introduction of an enlarged gauge symmetry is no longer required. It is based on a warped gravitational background which departs from AdS at the IR brane and a bulk propagating Higgs. The model is consistent with EWPT for a range of KK masses within the LHC reach.

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Joan A. Cabrer, Gero von Gersdorff, Mariano Quiros. 2011-04-27. Warped 5D Standard Model Consistent with EWPT. https://doi.org/10.1002/prop.201100054

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