Article,

On gravity localization under Lorentz violation in warped scenario

, and .
PHYSICS LETTERS B, 718 (3): 1114-1118 (2013)
DOI: 10.1016/j.physletb.2012.11.045

Abstract

Recently Rizzo studied the Lorentz Invariance Violation (LIV) in a brane scenario with one extra dimension where he found a non-zero mass for the four-dimensional graviton. This leads to the conclusion that five-dimensional models with LIV are not phenomenologically viable. In this work we re-examine the issue of Lorentz Invariance Violation in the context of-higher-dimensional theories. We show that a six-dimensional geometry describing a string-like defect with a bulk-dependent cosmological constant can yield a massless 4D graviton, if we allow the cosmological constant variation along the bulk, and thus can provides a phenomenologically viable solution for the gauge hierarchy problem. (C) 2012 Elsevier B.V. All rights reserved.

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