Regular Article - Theoretical Physics
Lepton flavor violating signals of a little Higgs model at high energy linear e+e- colliders
Department of Physics, Liaoning Normal University, Dalian, 116029, P.R. China
* e-mail: email@example.com
Revised: 19 January 2007
Published online: 6 March 2007
The littlest Higgs (LH) model predicts the existence of the doubly charged scalars , which generally have large flavor changing couplings to leptons. We calculate the contributions of Φ±± to the lepton flavor violating (LFV) processes li→ljγ and li→ljlklk, and we compare our numerical results with the current experimental upper limits on these processes. We find that some of these processes can give severe constraints on the coupling constant Yij and the mass parameter MΦ. Taking into account the constraints on these free parameters, we further discuss the possible lepton flavor violating signals of at high energy linear e+e- collider (ILC) experiments. Our numerical results show that the possible signals of might be detected via the subprocesses e±e±→l±l± in future ILC experiments.
© Springer-Verlag Berlin Heidelberg, 2007