Unified theories: From finiteness to fuzzy extra dimensions

Mondragon, M; Zoupanos, G

dc.contributor.author	Mondragon, M	en
dc.contributor.author	Zoupanos, G	en
dc.date.accessioned	2014-03-01T02:44:59Z
dc.date.available	2014-03-01T02:44:59Z
dc.date.issued	2007	en
dc.identifier.issn	0375-9687	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32081
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-44249096337&partnerID=40&md5=204d45da25943d50b200890174961e21	en
dc.subject.classification	Physics, Multidisciplinary	en
dc.subject.other	SOFT SUPERSYMMETRY-BREAKING	en
dc.subject.other	NONCOMMUTATIVE STANDARD MODEL	en
dc.subject.other	GAUGE-THEORIES	en
dc.subject.other	REDUCTION SCHEME	en
dc.subject.other	BETA-FUNCTIONS	en
dc.subject.other	COSET SPACES	en
dc.subject.other	HIGGS-BOSON	en
dc.subject.other	RENORMALIZATION	en
dc.subject.other	COUPLINGS	en
dc.subject.other	GEOMETRY	en
dc.title	Unified theories: From finiteness to fuzzy extra dimensions	en
heal.type	conferenceItem	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	Finite Unified Theories (FUTs) are N = 1 supersymmetric Grand Unified Theories, which can be made all-loop finite, both in the dimensionless (gauge and Yukawa couplings) and dimensionful (soft supersymmetry breaking terms) sectors. This remarkable property, based on the reduction of couplings at the quantum level, provides a drastic reduction in the number of free parameters, which in turn leads to an accurate prediction of the top quark mass in the dimensionless sector, and predictions for the Higgs boson mass and the supersymmetric spectrum in the dimensionful sector. Here we examine the predictions of two FUTs taking into account all theoretical and experimental constraints. Unified theories defined in more than four dimensions provide after dimensional reduction in four dimensions a further unification of the gauge, Yukawa and Higgs sectors as well as of the soft super-symmetry breaking sector in the case of supersymmetric theories. Furthermore, if the extra dimensions are fuzzy instead of continuous, the theories become renormalizable. Due to lack of space we cannot review the last two subjects here and we suggest consultation of the original papers.	en
heal.publisher	PROGRESS THEORETICAL PHYSICS PUBLICATION OFFICE	en
heal.journalName	Progress of Theoretical Physics Supplement	en
dc.identifier.isi	ISI:000254229300018	en
dc.identifier.issue	171	en
dc.identifier.spage	144	en
dc.identifier.epage	153	en