Probing the Geometry of Warped String Compactifications at the LHC

Details Probing the Geometry of Warped String Compactifications at the LHC Probing the Geometry of Warped String Compactifications at the LHC

2007-05-28

arxiv.org/abs/0705.4097v2

Phys.Rev.Lett.100:031601,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 4 figures; v2. typos corrected, references added, improved resolution of Figure 2

Scientific paper

10.1103/PhysRevLett.100.031601

Warped string compactifications, characterized by non-singular behavior of the metric in the infrared (IR), feature departures from the usual anti-de Sitter warped extra dimensions. We study the implications of the smooth IR cutoff for Randall-Sundrum (RS) type models. We find that the phenomenology of the KK gravitons (including their masses and couplings) depends sensitively on the precise shape of the warp factor in the IR. In particular, we analyze the warped deformed conifold and find that the spectrum differs significantly from that of RS, and present a simple prescription (a mass gap ansatz) which can be used to study the phenomenology of IR modifications to 5-d warped extra dimensions.

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