Abstract:We analyze the observational potential of single t production in both the t → bW and t → th decay channels at 8 TeV LHC using an integrated luminosity of 25 fb −1 . Our analysis is based on a simplified model with minimal coset SO(5)/SO(4) in which the t is a singlet of the unbroken SO(4). The single t production, as a consequence of electroweak symmetry breaking, is less kinematically suppressed, associated with a light forward jet and has boosted decay products at the 8 TeV LHC. Therefore it provides the most promising channel in searching for a heavy t . We have exploited the above kinematical features and used the jet substructure method to reconstruct the boosted Higgs in th decay channel. It is shown that a strong constraint on the t bW coupling (g t bW /g tbW,SM < 0.2 ∼ 0.3) at the 95% C. L. can be obtained for m t ⊂ (700, 1000) GeV.