Localization of Scalar Fluctuations in a Dilatonic Brane-World Scenario

Bozza, Valerio; Gasperini, M.; Veneziano, G.

doi:10.1016/S0550-3213(01)00515-6

We derive and solve the full set of scalar perturbation equations for a class of Z(2)-symmetric five-dimensional geometries generated by a bulk cosmological constant and by a 3-brane non-minimally coupled to a bulk dilaton field. The massless scalar modes, like their tensor analogues, are localized on the brane, and provide long-range four-dimensional dilatonic interactions, which are generically present even when matter on the brane carries no dilatonic charge. The shorter-range corrections induced by the continuum of massive scalar modes are always present: they persist even in the case of a trivial dilaton background (the standard Randall-Sundrum configuration) and vanishing dilatonic charges.

Titolo:	Localization of Scalar Fluctuations in a Dilatonic Brane-World Scenario
Autori:	BOZZA, Valerio M. GASPERINI G. VENEZIANO mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2001
Rivista:	NUCLEAR PHYSICS. B
Handle:	http://hdl.handle.net/11386/1066263
Appare nelle tipologie:	1.1.2 Articolo su rivista con ISSN

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http://hdl.handle.net/11386/1066263

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