Probing lepton flavor violation signal via e+ e- (gamma gamma) ---> l(i)   anti-l(j) in the littlest Higgs model with T-parity at the ILC
  In the littlest Higgs model with T-parity, the new interactions between the mirror leptons and the Standard Model leptons can induce some lepton flavor violation (LFV) processes at loop level. We study the possibility of the ILC to probe the LFV production processes $e^+e^-(\gamma\gamma)\rightarrow l_{i}\bar{l}_{j}$. Our results show that the rates of $\gamma\gamma\rightarrow l_{i}\bar{l}_{j}$ can reach 1 fb in optimal cases after reasonable kinematical cuts, which implies that these processes may be observed at the ILC. 
Jin-zhong Han, Xue-lei Wang, Bing-fang Yang
hep-ph