Anomaly cancellation in seven-dimensional supergravity with a boundary

Gherghetta, T; Kehagias, A

dc.contributor.author	Gherghetta, T	en
dc.contributor.author	Kehagias, A	en
dc.date.accessioned	2014-03-01T01:18:40Z
dc.date.available	2014-03-01T01:18:40Z
dc.date.issued	2003	en
dc.identifier.issn	0556-2821	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15141
dc.subject	ads-cft correspondence	en
dc.subject	Brane World	en
dc.subject	Conformal Field Theory	en
dc.subject	Strong Coupling	en
dc.subject	chern simons	en
dc.subject	Phase Transition	en
dc.subject	Standard Model	en
dc.subject.classification	Astronomy & Astrophysics	en
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.other	6 DIMENSIONS	en
dc.subject.other	6-DIMENSIONAL SUPERGRAVITY	en
dc.subject.other	CHIRAL SUPERGRAVITIES	en
dc.subject.other	COUPLING-CONSTANTS	en
dc.subject.other	PHASE-TRANSITIONS	en
dc.subject.other	STRING DYNAMICS	en
dc.subject.other	BRANE TENSIONS	en
dc.subject.other	FIELD-THEORIES	en
dc.subject.other	BULK FIELDS	en
dc.subject.other	YANG-MILLS	en
dc.title	Anomaly cancellation in seven-dimensional supergravity with a boundary	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevD.68.065019	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevD.68.065019	en
heal.identifier.secondary	065019	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	We construct a seven-dimensional brane world in a slice of AdS7, where the boundary matter content is fixed by the cancellation of anomalies. The seven-dimensional minimal N=2 gauged supergravity is compactified on the orbifold S1/Z2, and the supersymmetric bulk-boundary Lagrangian is consistently derived for boundary vector and hypermultiplets up to fermionic bilinear terms. Anomaly cancellation then fixes the boundary gauge coupling in terms of the seven-dimensional Planck mass, and a topological mass parameter of the Chem-Simons term. In addition for gauge groups containing the standard model, anomaly cancellation restricts the gauge groups on the six-dimensional boundaries to be only one of the exceptional groups. There are also special values of the separation of the two boundaries, where the boundary couplings become singular, and lead to a possible phase transition in the boundary theory. Furthermore, by the AdS/CFT correspondence our brane world is dual to a six-dimensional conformal field theory, suggesting that our bulk theory describes the strong coupling dynamics of six-dimensional theories. © 2003 The American Physical Society.	en
heal.publisher	AMERICAN PHYSICAL SOC	en
heal.journalName	Physical Review D	en
dc.identifier.doi	10.1103/PhysRevD.68.065019	en
dc.identifier.isi	ISI:000185830200070	en
dc.identifier.volume	68	en
dc.identifier.issue	6	en