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Flavor structure of supersymmetric SO(10) GUTs with extended matter sector
KTH, Skolan för teknikvetenskap (SCI), Teoretisk fysik, Teoretisk partikelfysik.
KTH, Skolan för teknikvetenskap (SCI), Teoretisk fysik, Teoretisk partikelfysik.
2011 (engelsk)Inngår i: PHYSICAL REVIEW D, ISSN 1550-7998, Vol. 83, nr 3, s. 035018-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We discuss in detail the flavor structure of the supersymmetric SOd(10) grand unified models with the three traditional 16-dimensional matter spinors mixed with a set of extra ten-dimensional vector multiplets which can provide the desired sensitivity of the standard model matter spectrum to the grand unified theory symmetry breakdown at the renormalizable level. We put the qualitative argument that a successful fit of the quark and lepton data requires an active participation of more than a single vector matter multiplet on a firm, quantitative ground. We find that the strict no-go obtained for the fits of the charged-sector observables in case of a single active matter 10 is relaxed if a second vector multiplet is added to the matter sector and excellent, though nontrivial, fits can be devised. Exploiting the unique calculable part of the neutrino mass matrix governed by the SUd(2)(L) triplet in the 54-dimensional Higgs multiplet, a pair of genuine predictions of the current setting is identified: a nonzero value of the leptonic 1-3 mixing close to the current 90% C.L. limit and a small leptonic Dirac CP phase are strongly preferred by all solutions with the global-fit chi(2) values below 50.

sted, utgiver, år, opplag, sider
2011. Vol. 83, nr 3, s. 035018-
Emneord [en]
LOPSIDED MASS MATRICES, GRAND UNIFIED THEORY, PROTON-DECAY, NEUTRINO MASSES, FERMION MASSES, QUARK MASSES, SEE-SAW, GAUGE HIERARCHY, R-PARITY, UNIFICATION
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-31309DOI: 10.1103/PhysRevD.83.035018ISI: 000287655300010OAI: oai:DiVA.org:kth-31309DiVA, id: diva2:404870
Forskningsfinansiär
EU, FP7, Seventh Framework Programme, PIEF-GA-2009-253119
Merknad
QC 20110318Tilgjengelig fra: 2011-03-18 Laget: 2011-03-14 Sist oppdatert: 2011-03-18bibliografisk kontrollert

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Totalt: 51 treff
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