Orbifolds, fuzzy spheres and chiral fermions

Chatzistavrakidis, A; Steinacker, H; Zoupanos, G

dc.contributor.author	Chatzistavrakidis, A	en
dc.contributor.author	Steinacker, H	en
dc.contributor.author	Zoupanos, G	en
dc.date.accessioned	2014-03-01T01:34:03Z
dc.date.available	2014-03-01T01:34:03Z
dc.date.issued	2010	en
dc.identifier.issn	1126-6708	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20662
dc.subject	Field theories in higher dimensions	en
dc.subject	Non-commutative geometry	en
dc.subject	Spontaneous symmetry breaking	en
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.other	ELECTROWEAK SYMMETRY-BREAKING	en
dc.subject.other	CONFORMAL FIELD-THEORIES	en
dc.subject.other	SPACE-TIME DIMENSIONS	en
dc.subject.other	GAUGE-THEORIES	en
dc.subject.other	MATRIX MODEL	en
dc.subject.other	SUPERSYMMETRY BREAKING	en
dc.subject.other	EXTRA DIMENSIONS	en
dc.subject.other	UNIFIED THEORIES	en
dc.subject.other	STRING THEORY	en
dc.subject.other	D-BRANES	en
dc.title	Orbifolds, fuzzy spheres and chiral fermions	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/JHEP05(2010)100	en
heal.identifier.secondary	100	en
heal.identifier.secondary	http://dx.doi.org/10.1007/JHEP05(2010)100	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	Starting with a N = 4 supersymmetric Yang-Mills theory in four dimensions with gauge group SU(3N) we perform an orbifold projection leading to a N = 1 supersymmetric SU(N)(3) Yang-Mills theory with matter supermultiplets in bifundamental representations of the gauge group, which is chiral and anomaly free. Subsequently, we search for vacua of the projected theory which can be interpreted as spontaneously generated twisted fuzzy spheres. We show that by adding the appropriate soft supersymmetry breaking terms we can indeed reveal such vacua. Three cases are studied, where the gauge group is spontaneously broken further to the low-energy gauge groups SU(4) x SU(2) x SU(2), SU(4)(3) and SU(3)(3). Such models behave in intermediate scales as higher-dimensional theories with a finite Kaluza-Klein tower, while their low-energy physics is governed by the corresponding zero-modes and exhibit chirality in the fermionic sector. The most interesting case from the phenomenological point of view turns out to be the SU(3)(3) unified theory, which has several interesting features such as (i) it can be promoted to a finite theory, (ii) it breaks further spontaneously first to the MSSM and then to SU(3) x U(1)(em) due to its own scalar sector, i. e. without the need of additional superfields and (iii) the corresponding vacua lead to spontaneously generated fuzzy spheres.	en
heal.publisher	SPRINGER	en
heal.journalName	Journal of High Energy Physics	en
dc.identifier.doi	10.1007/JHEP05(2010)100	en
dc.identifier.isi	ISI:000278250000008	en
dc.identifier.volume	2010	en
dc.identifier.issue	5	en