Pseudo-3-branes in a curved 6D bulk

Bogdanos, C; Kehagias, A; Tamvakis, K

dc.contributor.author	Bogdanos, C	en
dc.contributor.author	Kehagias, A	en
dc.contributor.author	Tamvakis, K	en
dc.date.accessioned	2014-03-01T01:26:56Z
dc.date.available	2014-03-01T01:26:56Z
dc.date.issued	2007	en
dc.identifier.issn	0370-2693	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18296
dc.subject.classification	Physics, Multidisciplinary	en
dc.subject.other	COSMOLOGICAL CONSTANT PROBLEM	en
dc.subject.other	NONCOMPACT EXTRA DIMENSIONS	en
dc.subject.other	GRAVITATIONAL-FIELD	en
dc.subject.other	HIERARCHY PROBLEM	en
dc.subject.other	SUPERGRAVITY	en
dc.subject.other	COMPACTIFICATION	en
dc.subject.other	MILLIMETER	en
dc.subject.other	DYNAMICS	en
dc.subject.other	STRINGS	en
dc.subject.other	BRANES	en
dc.title	Pseudo-3-branes in a curved 6D bulk	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.physletb.2007.09.016	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.physletb.2007.09.016	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	We consider a model involving a 4-brane in a 6D bulk, which carries sigma model fields. An axion field on the 4-brane cancels the pressure along one direction leading to an effective codimension-2 3-brane. For a range of parameters of the theory, we get a transverse space which is non-compact, providing a possible solution to the cosmological constant problem. A setup with two branes in a compact space is also treated. In this case, a mild fine-tuning between the radii of the two 4-branes is necessary. Finally, we explore the 4-brane problem in the Gauss-Codazzi formulation and we discuss general aspects of gravity in the presence of additional brane sources. (c) 2007 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics	en
dc.identifier.doi	10.1016/j.physletb.2007.09.016	en
dc.identifier.isi	ISI:000251292300018	en
dc.identifier.volume	656	en
dc.identifier.issue	1-3	en
dc.identifier.spage	112	en
dc.identifier.epage	118	en