Bulk gauge and matter fields in nested warping: II. Symmetry Breaking and phenomenological consequences

Abstract

Generalizing the Randall-Sundrum scenario to higher dimensions with nested warpings has been shown to avoid the constraints besetting the former. In the first paper of this series [JHEP 1509 (2015) 202], the Standard Model gauge and fermion fields were extended into such a six-dimensional bulk and the construction was shown to have several interesting and welcome features. In this paper, we discuss the electroweak symmetry breaking, presenting a novel Higgs localization mechanism that leads to interesting phenomenology in the Higgs sector. Localizing the Higgs modifies the $Z_{\mu }$ and $W_{\mu }$ boson wavefunctions, which leads to tree level changes in the oblique parameters. Using these as well as the correction to low-energy four-Fermi operators, we derive the constraints on our model and also discuss the gauge coupling evolution therein. Amusingly, the model can naturally incorporate a Higgs resonance in the 700--800 GeV range.

36 pages , 5 figures

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• Anomalous gauge couplings vis-$\grave{a}$-vis $(g-2{)}_{\mu }$ and flavor observables
• Moduli stabilization with bulk scalar in nested doubly warped braneworld model
• RG evolution and effect of intermediate new physics on $\Delta B=2$ six-quark operators
• Unearthing the electroweak structure of warped 5D models
• Moduli Dynamics in Effective Nested Warped Geometry in Four Dimensions and Some Cosmological Implications
• Mass spectrum of scalar and gauge fields in the cosmological multiply warped brane-world
• Analytical Solution for Bosonic Fields in the FRW Multiply Warped Braneworld