Probing the Geometry of Warped String Compactifications at the LHC

Journal Article · Mon May 28 04:00:00 EDT 2007 · Physical Review Letters

OSTI ID:929706

Walker, Devin; Shiu, Gary; Underwood, Bret; Zurek, Kathryn M; Walker, Devin G. E.

Warped string compactifications, characterized by the nonsingular 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 Kaluza-Klein 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, find that the spectrum differs significantly from that of RS, and present a simple prescription (a mass-gap ansatz) that can be used to study the phenomenology of IR modifications to 5D warped extra dimensions.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: Physics Division
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 929706
• Report Number(s): LBNL-347E
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Vol. 100; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DIMENSIONS
GEOMETRY
GRAVITONS
METRICS
MODIFICATIONS
SHAPE