T-odd top partner pair production in the dilepton final states at the LHC in the littlest Higgs Model with T-parity

In the littlest Higgs model with T-parity, we discuss the pair production of the T-odd top partner (T-) that decays almost 100% into the top quark and the lightest T-odd particle (A(H)). Considering the current constraints, we investigate the observability of the T-odd top partner pair production through the process pp -> T-(T) over bar--> t (t) over barA(H) A(H) in the final states with two leptons at 14 TeV LHC. We analyze the signal significance and found that the lower limits on the T-odd top partner mass are approximately 1.2 TeV, 1.3 TeV, and 1.4 TeV at the 2 sigma confidence level at 14 TeV LHC with an integrated luminosities of 30 fb(-1), 100 fb(-1), and 300 fb(-1), respectively. This lower limit can be increased to approximately 1.5(1.6) TeV if we used 1000(3000) fb(-1) of the integrated luminosity.