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arXiv · 2004.14856

Gauge Field Localization in the Linear Dilaton Background

K. Farakos·A. Kehagias·G. Koutsoumbas
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Abstract

We study dynamical self-localization of gauge theories in higher dimensions. Specifically, we consider a 5D $U(1)$ gauge theory in the linear dilaton (clockwork) background, with anisotropic gauge couplings along the transverse (fifth) direction and the longitudinal (four-dimensional) directions. By using lattice techniques, we calculate the space plaquettes and the helicity moduli and we determine the phase diagram of the model. We find strong evidence that the model exhibits a new phase, a layer phase, where the four-dimensional physics decouples from the five-dimensional dynamics. The layer phase corresponds to a strong force along the fifth direction and a Coulomb phase along the four-dimensional longitudinal directions. This is in accordance with the clockwork mechanism where light particles with exponentially suppressed interactions are generated in theories with no fundamental small parameters.

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K. Farakos, A. Kehagias, G. Koutsoumbas. 2020-04-29. Gauge Field Localization in the Linear Dilaton Background. https://doi.org/10.1016/j.physletb.2020.135549

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