Regular Article – Theoretical Physics
Top condensation model: a step towards the correct prediction of the Higgs mass
Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, Moscow Region, Russia
2 CFisUC, Department of Physics, University of Coimbra, 3004-516, Coimbra, Portugal
3 ABC Federal U., Santo André, São Paulo, Brazil
Accepted: 30 November 2020
Published online: 8 December 2020
A realization of the composite Higgs scenario in the context of the effective model with the symmetric four-Fermi interactions proposed by Miransky, Tanabashi and Yamawaki is studied. The model implements Nambu’s mechanism of dynamical electroweak symmetry breaking leading to the formation of and quark condensates. We explore the vacuum structure and spectrum of the model by using the Schwinger proper-time method. As a direct consequence of this mechanism, the Higgs acquires a mass in accord with its experimental value. The present prediction essentially differs from the known overestimated value, , making more favourable the top condensation scenario presented here. The mass formulas for the members of the second Higgs doublet are also obtained. The Nambu sum rule is discussed. It is shown that the anomalous symmetry breaking modifies this rule at next to leading order in .
© The Author(s) 2020
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