Warped 5D standard model consistent with EWPT

Joan A. Cabrer, Gero Von Gersdorff, Mariano Quirós

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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 (mKK< 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 ∼ $^{1 \over 2}$. As a way out, models with an enhanced bulk gauge symmetry SU(2)R × 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. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original languageEnglish
Pages (from-to)1135-1138
JournalFortschritte der Physik
Volume59
Issue number11-12
DOIs
Publication statusPublished - 1 Nov 2011

Keywords

  • Electroweak breaking
  • Extra dimensions
  • Warped spaces

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    Cabrer, J. A., Gersdorff, G. V., & Quirós, M. (2011). Warped 5D standard model consistent with EWPT. Fortschritte der Physik, 59(11-12), 1135-1138. https://doi.org/10.1002/prop.201100054