COLOR-OCTET BOUND STATES, INDUCED BY HIGGS MECHANISM

The current limits for fourth generation quarks allows to expect their mass of the order of 500 GeV. In this mass region for quark-antiquark pair the additional Yukawa-type attraction due to Higgs mechanism is expected to emerge. This Higgs-induced attraction greatly exceeds strong interaction between quarks and leads to the formation of bound states in both color-octet S-(8) and singlet S-(1) states. In the key of recent works on significance of color-octet channel for production of color-singlet state of fourth generation Q (Q) over bar we calculated the binding energies for both octet and singlet states. Such an attraction localizes quarks in extremely small area. Hence, color-octet pair of fourth generation quarks can form the "nucleus" and, together with color neutralizing light particle that is captured by strong interaction in orbit around the nucleus, create particle with structure similar to Deuterium.