Reduction of couplings and heavy top quark in the minimal SUSY GUT

Kubo, J; Mondragon, M; Zoupanos, G

dc.contributor.author	Kubo, J	en
dc.contributor.author	Mondragon, M	en
dc.contributor.author	Zoupanos, G	en
dc.date.accessioned	2014-03-01T01:42:41Z
dc.date.available	2014-03-01T01:42:41Z
dc.date.issued	1994	en
dc.identifier.issn	05503213	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/23895
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0001239272&partnerID=40&md5=70ce955e8d73e1a2746df6b6dee5dd7e	en
dc.title	Reduction of couplings and heavy top quark in the minimal SUSY GUT	en
heal.type	journalArticle	en
heal.publicationDate	1994	en
heal.abstract	Out of 256 independent reduction solutions that can be found within the minimal supersymmetric SU(S) GUT, there are exactly two asymptotically free solutions which can restrict the top quark mass mt and do not contradict the observed mass spectrum of the first two fermion generations. A numerical analysis shows that these two solutions lie on the same renormalization group invariant surface on which mt and the bottom quark mass mb assume relatively stable values for a given supersymmetry breaking scale mSUSY. For mSUSY = 200 GeV with αS(MZ) = 0.12, αem(MZ) = (127.9)-1 and mτ = 1.78 GeV fixed, we find that on this surface mt and mb vary 2% and 3% around their central values 182 GeV and 5.3 GeV, respectively.	en
heal.journalName	Nuclear Physics B	en
dc.identifier.volume	424	en
dc.identifier.issue	2	en
dc.identifier.spage	291	en
dc.identifier.epage	307	en