摘要
In the littlest Higgs model with T-parity, the production cross section of the T-odd heavy gauge boson pair Z H W H is sizable at the LHC. In addition, both the Z H and W H bosons have almost exclusively one decay channel into HA H and WA H , respectively, where the dark matter candidate A H yields a large missing transverse energy signal. Upon the discovery of the Higgs boson at 125 GeV, we study the discovery sensitivity of the final state pp→ℓbb̄ +EÌ̧ T to probe the model at the LHC. We find that the standard model backgrounds are manageable by applying suitable kinematic cuts. The LHC running at √s=14 TeV with a 100 fb - 1 total luminosity is sensitive to the model with the signal significance above 5 if the symmetry breaking scale f is below about 850 GeV. © 2013 American Physical Society.