The t-quark mass in the supersymmetric SU(5)-model with composite superhiggses

In this paper, the authors considered the restriction on the top quark mass in the supersymmetric SU(5) model with composite superhiggses. The compositeness condition corresponds to the vanishing of the wave function renormalization counter-term Z in the limit of the regularization removing. The mass of the top quark in the model with composite superhiggses depends slightly on the concrete structure of the superhiggs sector. For the model with composite superhiggses H5 and bar H5 the top quark mass is mt ≅ 162 GeV. The authors find an upper bound on the t-quark mass in the authors' approach mt ≅ 170 GeV, which corresponds to the model with a single composite superhiggs H5