Dynamical models for light Higgs doublets in supersymmetric grand unified theories
- Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113 (Japan)
We consider a supersymmetric hypercolor gauge theory with six flavors of (hyper)quarks interacting strongly at the grand unification scale. Dynamical breaking of the grand unified SU(5){sub GUT} produces a massless pair of composite color-triplet states. Use of the missing partner mechanism yields eventually a pair of massless Higgs doublets, giving large masses to the color-triplet partners. We prove that this pair of massless Higgs doublets survives quantum corrections and remains in the low-energy spectrum as long as the supersymmetry is unbroken. Hence this could solve the most serious problem{emdash}doublet-triplet splitting in the grand unified theories. We also show that the dangerous dimension-five operators for nucleon decays are suppressed simultaneously, which makes our model still more attractive. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 279852
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 7 Vol. 53; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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