Izawa Ken-Iti IZAWA Ken-iti

Articles:  1-20 of 30

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  • Warped Compactification with a Four-Brane

    HAYAKAWA Shoko , IZAWA Kenichi , Department of Physics University of Tokyo , Department of Physics University of Tokyo:Research Center for the Early Universe University of Tokyo

    Warped compactification of a six-dimensional bulk with a negative cosmological constant is realized using a 4-brane along with an abelian gauge theory. We find that no fine tuning of couplings is need …

    Progress of Theoretical Physics 106(3), 641-644, 2001-09-25

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  • Dynamical Inflation and Vacuum Selection

    IZAWA Ken-iti , YANAGIDA Tsutomu , Department of Physics University of Tokyo : Research Center for the Early Universe University of Tokyo , Department of Physics University of Tokyo : Research Center for the Early Universe University of Tokyo

    We consider an inflationary scenario in which the energy scale of inflation stems from gauge theory dynamics. Reflecting on inflationary models with moduli fields such as a dilaton, we discuss generic …

    Progress of Theoretical Physics 103(5), 1077-1079, 2000-05-25

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  • On Nonlinear Gauge Theory from a Deformation Theory Perspective

    IZAWA Ken-iti , Department of Physics and RESCEU University of Tokyo

    Nonlinear gauge theory is a gauge theory based on a nonlinear Lie algebra (finite W algebra) or a Poisson algebra, which yields a canonical star product for deformation quantization as a correlator on …

    Progress of Theoretical Physics 103(1), 225-228, 2000-01-25

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  • Cosmological Constants as Messenger between Branes

    IZAWA Ken-iti , NOMURA Yasunori , YANAGIDA Tsutomu , Department of Physics University of Tokyo , Department of Physics University of Tokyo , Department of Physics University of Tokyo

    We present a supersymmetry-breaking scenario in which both the breaking in the hidden sector with no-scale type supergravity and that in the observable sector with gauge mediation are taken into accou …

    Progress of Theoretical Physics 102(6), 1181-1185, 1999-12-25

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  • R-Invariant Topological Inflation

    IZAWA Ken-iti , KAWASAKI Masahiro , YANAGIDA Tsutomu , Department of Physics University of Tokyo , Institute for Cosmic Ray Research University of Tokyo , Department of Physics aud RESCEU University of Tokyo

    We propose a topological inflation model in the framework of supergravity with R invariance. This topological inflation model is not only free from the initial value problem of the inflaton field but …

    Progress of Theoretical Physics 101(5), 1129-1133, 1999-05-25

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  • R-Invariant Dilaton Fixing

    IZAWA Ken-iti , YANAGIDA Tsutomu , Department of Physics University of Tokyo , Department of Physics University of Tokyo

    We consider dilaton stabilization with R invariance, which insures a vanishing cosmological constant at the scale of stabilization. We construct a few models which accommodate weak gauge couplings wit …

    Progress of Theoretical Physics 101(1), 171-175, 1999-01-25

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  • R-Invariant Unification with Dynamical Higgs Multiplets

    IZAWA Ken-ichi , YANAGIDA Tsutomu , Department of Physics University of Tokyo , Department of Physics University of Tokyo

    We construct R-invariant grand unification models with composite Higgs multiplets. Higgs doublets are massless due to the R symmetry, which is not spontaneously broken at the unification scale, while …

    Progress of Theoretical Physics 99(3), 423-426, 1998-03-25

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  • Supersymmetry-Breaking Models of Inflation

    IZAWA Ken-iti , Department of Physics University of Tokyo

    We consider dynamical models of supersymmetry breaking which naturally incorporate cosmological inflation. The inflation plays an inevitable role in dynamical SUSY breaking, and the hierarchical scale …

    Progress of Theoretical Physics 99(1), 157-159, 1998-01-25

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  • Strongly Coupled Messenger Gauge Theory

    IZAWA Ken-iti , Department of Physics University of Tokyo

    We consider gauge-mediated models of supersymmetry (SUSY) breaking with strongly coupled nonabelian messenger gauge theory. After integrating out the SUSY-breaking and messenger sectors, we directly s …

    Progress of Theoretical Physics 98(2), 443-447, 1997-08-25

    DOI  References (11)

  • R-Invariant Natural Unification

    IZAWA Ken-iti , YANAGIDA Tsutomu , Department of Physics University of Tokyo , Department of Physics University of Tokyo

    We construct R-invariant unification models where a pair of massless Higgs doublets is naturally obtained. The masslessness of the Higgs doublets is guaranteed by the unbroken R symmetry. Mass generat …

    Progress of Theoretical Physics 97(6), 913-920, 1997-06-25

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  • Dynamical Generation of the Gauge Hierarchy in SUSY-GUT's

    HOTTA Tomohiro , IZAWA Ken-iti , YANAGIDA Tsutomu

    We make a review of the recently proposed supersymmetric hypercolor gauge theory with six flavors of quarks interacting strongly at the grand unification scale, where dynamical breaking of the grand u …

    Progress of theoretical physics 123, 431-441, 1996-09-25

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  • Nonabelian Duality and Higgs Multiplets in Supersymmetric Grand Unified Theories

    HOTTA Tomohiro , IZAWA Ken-iti , YANAGIDA Tsutomu , Department of Physics University of Tokyo , Department of Physics University of Tokyo , Department of Physics University of Tokyo

    We consider strongly interacting supersymmetric gauge theories which dynamically break the GUT symmetry and produce light Higgs doublets naturally. Two models we proposed in previous articles are rean …

    Progress of Theoretical Physics 95(5), 949-961, 1996-05-25

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  • Dynamical Supersymmetry Breaking in Vector-Like Gauge Theories

    IZAWA Ken-iti , YANAGIDA Tsutomu , Department of Physics University of Tokyo , Department of Physics University of Tokyo

    We provide vector-like gauge theories which break supersymmetry dynamically.

    Progress of Theoretical Physics 95(4), 829-830, 1996-04-25

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  • On Effective Superpotentials in Supersymmetric Gauge Theories

    IZAWA Ken-iti , Department of Physics University of Tokyo

    Effective superpotentials are considered which include glueball chiral superfields among their arguments in supersymmetric gauge theories. It is seen that the accommdation of glueball superfields is s …

    Progress of Theoretical Physics 95(1), 199-201, 1996-01-25

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  • QCD-Like Hidden Sector Models wihout the Polonyi Problem

    IZAWA Ken-iti , YANAGIDA Tsutomu , Department of Physics University of Tokyo , Department of Physics University of Tokyo

    QCD-Iike hidden sector models of supersymmetry breaking which do not suffer from a cos-mological problem due to the Polonyi field are considered. Avoidance of the light gluino leads to introduction of …

    Progress of Theoretical Physics 94(6), 1105-1108, 1995-12-25

    DOI  References (12)

  • Derivative Expansion in Quantum Theory of Gravitation

    IZAWA Ken-iti , Department of Physics University of Tokyo

    The cosmological term prevents perturbation based on derivative expansion in Einstein gravity.We consider quantum theory of gravitation invariant under volume-preserving diffeomorphism and Weyl transf …

    Progress of Theoretical Physics 93(3), 615-619, 1995-03-25

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  • Hierarchical Mass Matrices in a Minimal SO(10) Grand Unification-2-

    Masako BANDO , Ken-Iti IZAWA , Tomohiko TAKAHASHI , Physics Division Aichi University , Department of Physics University of Tokyo , Department of Physics Kyoto University

    We continue to investigate the minimal SO(10)×U(1)_H model which we proposed recently. Renormalization group analysis of the model results in natural predictions of quark-lepton masses and Kobayashi-M …

    Progress of Theoretical Physics 92(6), p1137-1147, 1994-12

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  • Hierarchical Mass Matrices in a Minimal SO(10) Grand Unification-1-

    Masako BANDO , Ken-Iti IZAWA , Tomohiko TAKAHASHI , Department of Physics Kyoto University , Department of Physics Kyoto University , Department of Physics Kyoto University

    We consider a minimal SO(10) unified model with horizontal Peccei-Quinn symmetry. The hierarchical structure of quark-lepton mass matrices is naturally implemented by the remnants of certain irrelevan …

    Progress of Theoretical Physics 92(1), p143-151, 1994-07

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  • Dynamics of the Cosmological Constant in Two-Dimensional Universe

    Ken-Iti IZAWA , Department of Physics Kyoto University

    We consider a two-dimensional model of gravity with the cosmological constant as a dynamical variable. The effective cosmological constant is derived when the universe has no initial boundary. It turn …

    Progress of Theoretical Physics 91(2), p393-396, 1994-02

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  • Another Perturbative Expansion in Nonabelian Gauge Theory

    Ken-Iti IZAWA , Department of Physics Kyoto University

    We consider a new perturbation scheme in nonabelian gauge theory. Pure Yang-Mills theory in three dimensions is taken as a concrete example. The zeroth-order in the perturbative expansion is given by …

    Progress of Theoretical Physics 90(4), p911-916, 1993-10

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