Finite unification

Kobayashi, T; Kubo, J; Mondragon, M; Zoupanos, G

dc.contributor.author	Kobayashi, T	en
dc.contributor.author	Kubo, J	en
dc.contributor.author	Mondragon, M	en
dc.contributor.author	Zoupanos, G	en
dc.date.accessioned	2014-03-01T01:16:35Z
dc.date.available	2014-03-01T01:16:35Z
dc.date.issued	2001	en
dc.identifier.issn	01422413	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14101
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0345927586&partnerID=40&md5=4778b9d6a4bd3cbcc799c63a64f14790	en
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0345927586&partnerID=40&md5=4778b9d6a4bd3cbcc799c63a64f14790	en
dc.subject	Renormalization group	en
dc.subject	Unified theories	en
dc.title	Finite unification	en
heal.type	journalArticle	en
heal.publicationDate	2001	en
heal.abstract	All-loop Finite Unified Theories (FUTs) are very interesting N = 1 supersymmetric GUTs in which a complete reduction of couplings has been achieved. FUTs not only realise an old field theoretical dream but also have a 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 GUTs even to all orders. Recent developments in the soft supersymmetry breaking (SSB) sector of N = 1 GUTs and FUTs lead to exact RGI relations also in this sector of the theories. Of particular interest is a RGI sum rule for the soft scalar masses holding to all orders. The characteristic features of SU(5) models that have been constructed based on the above tools are: (a) the old agreement of the top quark mass prediction with the measured value remains unchanged, (b) the lightest Higgs boson is predicted to be around 120-130 GeV, (c) the s-spectrum starts above several hundreds of GeV. © 2001 OPA (Overseas Publishers Association) N.V. Published by license under the Harwood Academic Publishers imprint, part of Gordon and Breach Publishing, a member of the Taylor & Francis Group.	en
heal.journalName	Surveys in High Energy Physics	en
dc.identifier.volume	16	en
dc.identifier.issue	1-2	en
dc.identifier.spage	87	en
dc.identifier.epage	129	en