Scalar Leptoquark Contributions into $l_i\to l_j\gamma$ Processes

Abstract

The contributions of scalar leptoquarks in lepton flavor violating (LFV) processes of type $l_i\to l_j\gamma$ are investigated in frame of the minimal model with the four color symmetry and Higgs mechanism of quark and lepton mass generation. It is shown that experimental data on the decays $\mu \to e\gamma$, $\tau \to \mu \gamma$, $\tau \to e\gamma$ allow the existence of light scalar leptoquarks of type under consideration, with masses of order 1 TeV or below.

Comments: 7 pages, 4 figures. Submitted to Proceedings of the 16th International Seminar on High Energy Physics "QUARKS-2010", Kolomna, Russia, 6-12 June, 2010