Open AccessParticle Spectra and Gauge Unification in SU(6) xSU(2)R Model
Author(s) -
T. Hayashi,
M. Matsuda,
Takeo Matsuoka
Publication year - 2003
Publication title -
progress of theoretical physics
Language(s) - English
Resource type - Journals
eISSN - 1347-4081
pISSN - 0033-068X
DOI - 10.1143/ptp.110.1095
Subject(s) - physics , particle physics , electroweak scale , quark , grand unified theory , string (physics) , electroweak interaction , lepton , standard model (mathematical formulation) , spectral line , gauge symmetry , gauge (firearms) , gauge theory , supersymmetry , theoretical physics , nuclear physics , electron , quantum mechanics , archaeology , history
We study the path from the string scale physics to the low-energy physics inthe $SU(6) \times SU(2)_R$ string-inspired model with the flavor symmetry ${\bfZ}_M \times {\bf Z}_N \times \tilde{D}_4$. The flavor symmetry controls themass spectra of heavy particles as well as those of quarks and leptons in theintermediate energy region ranging from the string scale ($\sim 10^{18} {\rmGeV}$) to the electroweak scale. In this paper we examine the mass spectra ofheavy particles in detail in our model. The renormalization group evolution ofthe gauge couplings is studied up to two-loop order. A consistent solution ofthe gauge unification around the string scale is found by adjusting the spectraof the anti-generation matter fields.Comment: 28 pages, 1 figur
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