A. D. Smirnov

Dominant decays of scalar leptoquarks and scalar gluons in the minimal four-color symmetry model

AbstractFermionic and weak decays of the scalar leptoquarks S = S1(+), S1(−), and Sm and the scalar gluons F = F1 and F2 predicted by the minimal model involving four-color symmetry and the Higgs mechanism of quark-and lepton-mass splitting are considered. The widths and the branching ratios are calculated for these decays, and the results are analyzed versus the couplings and masses of decaying particles. It is shown that, at relatively small mass splittings Δm within scalar doublets (Δm < mW), the fermionic decays S1(+) → tlj+, S1(−) → vi

Contributions of gauge and scalar leptoquarks to K L 0 → l i + l j − and B 0 → l i + l j − decay and constraints on leptoquark masses from the decays K L 0 → e ∓µ± and B 0 → e ∓ τ ±

\tilde b

Resonance contribution of scalar color octet to tt̄ production at the LHC in the minimal four-color quark–lepton symmetry model

, Sm → t

THE CHIRAL COLOR SYMMETRY OF QUARKS AND G′-BOSON CONTRIBUTIONS TO CHARGE ASYMMETRY IN

\tilde \nu

-PRODUCTION AT THE LHC AND TEVATRON

j, F1 → t