Catalysis of the 〈b̄b〉 Condensate in the Composite Higgs Model
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The problem of appearance of quark masses through the mechanism of dynamical breaking of the SU(2)L × U(1)R symmetry of electroweak interactions has been studied within a model with local four-quark interactions, which result in the formation of a 〈t̄t〉 condensate and composite Higgs bosons. We show that this process catalyzes b̄b condensation in the presence of an arbitrarily weak’ t Hooft interaction. The spectrum of composite scalar excitations has been calculated. An expression obtained for the mass of a standard Higgs boson significantly improves the agreement of the top-condensation model with the experiment. It has been shown that the standard Higgs boson under the Nambu sum rules should have three partners with the same mass of about 245 GeV and different electric charges. The possibility of a transition of the system to a chiral symmetric phase, which is accompanied by the corresponding change in the spectrum of elementary excitations, is discussed.
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A.A. Osipov is grateful to C.T. Hill for interest in the work, support, and stimulating discussions and to H. Terazawa for valuable correspondence.
A.A. Osipov acknowledges the support of the European Cooperation in Science and Technology (program COST Action CA16201).
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