Higgs boson productions at LHC as a probe of different littlest Higgs models with T-parity

Understand

Higgs boson productions at the LHC will serve as a sensitive probe of various little Higgs models.

• In this work we comparatively study two littlest Higgs models with different T-parity constructions through examining their effects in three production processes of the Higgs boson at the LHC, namely the productions of a single Higgs, a Higgs-pair, as well as a Higgs boson associated with a pair of top and anti-top quarks.
• The two models are characterized by predicting a top partner canceling the Higgs mass quadratic divergence contributed by the top quark with even and odd T-parity, respectively.
• We find that both models can alter the SM cross sections sizably and their corrections also differ significantly.