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Published March 2008 | Published + Submitted
Journal Article Open

Phenomenology of infrared smooth warped extra dimensions

Abstract

We study the effect of the infrared (IR) geometry on the phenomenology of warped extra dimensions with gauge and fermion fields in the bulk. We focus in particular on a "mass gap'' metric which is AdS in the ultraviolet, but asymptotes to flat space in the IR, breaking conformal symmetry. These metrics can be dialed to approximate well the geometries arising in certain classes of warped string compactifications. We find, similar to our earlier results on the Kaluza-Klein (KK) graviton, that these metrics give rise to phenomenologically significant shifts in the separation of KK gauge modes in the mass spectrum (up to factors ~ 2) and their couplings to IR localized fields (up to factors ~ 5−10 increase). We find that, despite shifts in the spectra, the constraint

Additional Information

© SISSA/ISAS 2008. Received: December 28, 2007. Accepted: February 25, 2008. Published: March 5, 2008. It is a pleasure to thank Kaustubh Agashe, Ho Ling Li, Ben Lillie, Frank Petriello, and Bret Underwood for helpful discussions. This work was supported in part by NSF CAREER Award No. PHY-0348093, DOE grant DE-FG-02-95ER40896, a Research Innovation Award and a Cottrell Scholar Award from Research Corporation.

Attached Files

Published - Paul_McGuirk_2008_J._High_Energy_Phys._2008_012.pdf

Submitted - 0712.2264.pdf

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August 19, 2023
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