Finite unified theories

Mondragon, M; Zoupanos, G

dc.contributor.author	Mondragon, M	en
dc.contributor.author	Zoupanos, G	en
dc.date.accessioned	2014-03-01T01:58:42Z
dc.date.available	2014-03-01T01:58:42Z
dc.date.issued	2009	en
dc.identifier.issn	17426588	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/28705
dc.title	Finite unified theories	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/1742-6596/171/1/012095	en
heal.identifier.secondary	http://dx.doi.org/10.1088/1742-6596/171/1/012095	en
heal.identifier.secondary	012095	en
heal.publicationDate	2009	en
heal.abstract	All-loop Finite Unified Theories (FUTs) are very interesting N=1 GUTs in which a complete reduction of couplings has been achieved. FUTs realize an old field theoretical dream and have remarkable predictive power. Reduction of dimensionless couplings in N=1 GUTs is achieved by searching for renormalization group invariant (RGI) relations among them holding beyond the unification scale. Finiteness results from the fact that there exists RGI relations among dimensionless couplings that guarantee the vanishing of the β-functions in certain N=1 supersymmetric GUTS even to all orders. Furthermore, developments in the soft supersymmetry breaking sector of N=1 GUTs and FUTs lead to exact RGI relations also in this dimensionful sector of the theories. Of particular interest for the construction of realistic theories is a RGI sum rule for the soft scalar masses holding to all orders. © 2009 IOP Publishing Ltd.	en
heal.journalName	Journal of Physics: Conference Series	en
dc.identifier.doi	10.1088/1742-6596/171/1/012095	en
dc.identifier.volume	171	en