Izvestiya of Saratov University.
ISSN 1817-3020 (Print)
ISSN 2542-193X (Online)


Minimal Quark-Lepton Symmetry Model and Its Manifestations at Low Energies

Background and Objectives: The four color symmetry of quarks and leptons predicts scalar leptoquarks along with vector leptoquarks. If the scale of the violation of four-color symmetry is associated with the masses of vector leptoquarks and, as recently shown, can be about 100 TeV, the mass of scalar leptoquarks can be much smaller. Numerical values of additional fermionic mixing matrices were obtained in the study of restrictions on the mass of vector leptoquarks from leptonic decays KL0 and B0, BS0 bosons.