Browsing by Subject "Unified theories and models of strong and electroweak interactions"

Browsing by Subject "Unified theories and models of strong and electroweak interactions"

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  • Okada, Nobuchika (2011-03-01)
    We consider supersymmetric grand unified theory (GUT) with the gaugino mediated supersymmetry breaking and investigate a possibility to discriminate different GUT models in terms of predicted sparticle mass spectra. Taking ...
  • Okada, Nobuchika (2001-08-10)
    We propose a new mechanism toward the solution to the doublet-triplet Higgs mass splitting problem in the supersymmetric grand unified theory. Our model is based on the gauge group SU(5)⌄H × SU(5)⌄GUT, where SU(5)⌄H and ...
  • Okada, Nobuchika (2011-12-22)
    The standard model Higgs boson with large nonminimal coupling to the gravitational curvature can drive cosmological inflation. We study this type of inflationary scenario in the context of supersymmetric grand unification ...
  • Okada, Nobuchika (2003-08-26)
    In the recently proposed minimal supersymmetric SO(10) model, the neutrino Dirac Yukawa coupling matrix, together with all the other fermion mass matrices, is completely determined once free parameters in the model are ...
  • Okada, Nobuchika (2013-05-23)
    The minimal supersymmetric (SUSY) SO(10) model, where only two Higgs multiplets {10 ⊕ 126} are utilized for Yukawa couplings with matter fields, can nicely fit the neutrino oscillation parameters as well as charged fermion ...
  • Okada, Nobuchika (2007-07-19)
    The minimal supersymmetric SO(10) grand unified theory (GUT) models with 10, 126, and 210 Higgs and only renormalizable couplings have been shown to provide a simple way to understand the neutrino mixings as well as the ...
  • Okada, Nobuchika (2012-07-25)
    The Standard Model Higgs boson with the nonminimal coupling to the gravitational curvature can drive cosmological inflation. We study this type of inflationary scenario in the context of supergravity. We first point out ...
  • Okada, Nobuchika (2011-11-14)
    We examine the low scale particle spectroscopy of an SO(10) [or equivalently SU(5)] inspired supersymmetric model with nonuniversal gaugino masses. The model assumes minimal supergravity and contains the same number of ...
  • Okada, Nobuchika (2005-05-05)
    We consider a phenomenologically viable SO(10) grand unification model of the unification scale M around 10₁₆  GeV which reproduces the minimal supersymmetric standard model at low energy and allows perturbative calculations ...
  • Okada, Nobuchika (2008-12-16)
    Simple supersymmetric SO(10) grand unified theory in five dimensions is proposed, in which the fifth dimension is compactified on the S¹/(Z₂ × Z₂′) orbifold with two inequivalent branes at the orbifold fixed points. In ...
  • Okada, Nobuchika (2008-07-11)
    A simple supersymmetric SO(10) grand unified theory (GUT) in five dimensions is considered. The fifth dimension is compactified on the S¹/(Z₂ × Z₂') orbifold possessing two inequivalent fixed points. In our setup, all ...
  • Okada, Nobuchika (2009-05-22)
    We explore the sparticle and Higgs spectroscopy of an SU(5) inspired extension of the constrained minimal supersymmetric standard model. The universal soft parameter m₀ is replaced by m₅̅ and m₁₀, where m₅̅ and m₁₀ denote ...
  • Okada, Nobuchika (2007-04-26)
    The minimal renormalizable supersymmetric SO(10) model, an SO(10) framework with only one 10 and one 1̅2̅6̅ Higgs multiplets in the Yukawa sector, is attractive because of its high predictive power for the neutrino oscillation ...

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