Pair production of single and double charged scalar pairs and their   lepton flavor violating signals in the littlest Higgs model at LHC
  In this work productions of charged and doubly charged scalars and their lepton flavor violating collider signals in the framework of littlest Higgs model at LHC are studied. In the allowed parameter region of the littlest Higgs model, the production rates of the scalars of littlest Higgs model via $pp \to \phi^{++}\phi^{-}$, $pp \to \phi^+\phi^-$ and $pp \to \phi^{++}\phi^{--}$ processes are calculated. We obtained that charged and doubly charged scalar pairs can be produced at LHC . Considering the possible lepton flavor violating decays of charged scalars found in literature, final state analysis is done. This analysis show that depending on the model parameters, lepton number and lepton flavor violations resulting from single and double charged heavy scalars of the littlest Higgs model can be observed at LHC. 
Ayse Cagil and Huseyin Dag
hep-ph hep-ex