2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/198076The confinement mechanism earlier proposed by author is applied to describe the (possible) ground state of toponium $η_t$. For this aim the nonperturbative consistent approach is elaborated in both relativistic and nonrelativistic cases. The study entails estimates for parameters of the confining SU(3)-gluonic field in the above quarkonium, those estimates being also consistent with possible width of decay $η_t\to2γ$. The corresponding estimates of the gluon concentrations, electric and magnetic colour field strengths are also adduced for the mentioned field at the scales of toponium.28 pages, LaTeXHigh Energy Physics - Phenomenologytext