New Solution to Doublet-Triplet Splitting Problem in SU(N) SUSY GUTs: Towards an Unification of Flavour

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dc.creatorChkareuli, J. L.
dc.creatorKobakhidze, A. B.
dc.date1997-04-04
dc.date.accessioned2026-07-07T11:47:47Z
dc.date.available2026-07-07T11:47:47Z
dc.descriptionThe missing VEV solution to the doublet-triplet splitting problem in general SU(N) SUSY GUTs is found. Remarkably enough, it requires a strict equality of numbers of the fundamental colours and flavours in SU(N) and for the even-order groups (N=2k) gives the predominant breaking channel $SU(N) \to SU(k-1)_c\otimes SU(k-1)_f\otimes SU(2)_w\otimes U(1)\otimes U(1)'$ in the parameter natural area. The flavour subsymmetry breaking owing to some generic string inspired extra symmetries of the Higgs superpotential appears not to affect markedly the basic adjoint vacuum configuration in the model. Thus the both salient features of SM just as an interplay between colours and flavours (or families for due assignment of quarks and leptons) so the doublet structure of the weak interactions could be properly understood and accommodated in the framework of the minimal SU(8) model. Among its predictions the most crucial one belongs to the existence on the TeV scale just three families of pseudo-Goldstone bosons and their superpartners 3(5+\bar 5) + SU(5)-singlets which noticeably improve the unification picture of MSSM.
dc.description13 pages, LaTeX
dc.identifierhttps://arxiv.org/abs/hep-ph/9704238
dc.identifierhttp://arxiv.org/abs/hep-ph/9704238
dc.identifierPhys.Lett.B407:234-242,1997
dc.identifierdoi:10.1016/S0370-2693(97)00714-4
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202695
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNew Solution to Doublet-Triplet Splitting Problem in SU(N) SUSY GUTs: Towards an Unification of Flavour
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