A Realistic SU(6) GUT with Dynamical Generation of Gauge Hierarchy : Particles and Fields

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概要

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• We construct a realistic supersymmetric SU(6) model for the grand unification, attempting to solve the hierarchy and fine tuning problems. The grand unification scale M_G is naturally generated by the quantum corrections when soft and explicit supersymmetry breaking mass terms are introduced for the scalars. In a reasonable region of the coupling constants, the potential minimum at M_G corresponding to SU(6)→ SU(3)_c× SU(2)_w × U(1)_Y becomes unique and absolute. The fine tuning problem for the scalar masses is evaded by introducing the so-called "sliding singlet" so that the SU(2)_w doublets should remain massless up to M_w. The SU(3)_c×SU(2)_w× U(1)_Y theory in "low-energy" (≲M_w) derived from the SU(6) model is examined in detail. Undesirable particles such as SU(3)_c -triplet scalars which cause the proton to decay become superheavy at M_G, while some additional particles as well as the ordinary ones will participate in the low-energy physics. A serious problem encountered in constructing an SU(5) model with the sliding singlet is also discussed.

• 理論物理学刊行会の論文
• 1984-03-25

著者

• YAMAMOTO Katsuji

  Institute of Field Physics Department of Physics and Astronomy University of North Carolina

• Yamamoto K

  Department Of Physics Hiroshima University

• Umemura Isao

  Department Of Nuclear Engineering Faculty Of Engineering Kyoto University

• TABATA Kenzi

  Department of Nuclear Engineering, Kyoto University

• Tabata Kenzi

  Department Of Nuclear Engineering Kyoto University

• Tabata Kenji

  Department Of Applied Chmistry Faculty Of Engineering University Of Miyazaki

• UEMURA Isao

  Department of Nuclear Engineering Kyoto University

• YAMAMOTO Katsuji

  Institute of Field Physics, Department of Physics and Astronomy University of North Carolina

• YAMAMOTO Kazuyoshi

  Department of Physics, Science University of Tokyo

• YAMAMOTO Kunio

  Institute of Physics, college of General Education Osa

• UMEMURA Isao

  Department of Nuclear Engineering, Faculty of Engineering Kyoto University

• YAMAMOTO Kazuhiro

  Uji Research Center, Yukawa Institute for Theoretical Physics Kyoto University

• YAMAMOTO Kazuhiro

  Department of Physical Science, Hiroshima University

• Tabata Kenji

  Department of Nuclear Engineering, Kyoto University

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