Modified Higgs sectors and NLO associated production

摘要: Many beyond the Standard Model (BSM) scenarios involve Higgs couplings to additional electroweak fields. It is well established that these new fields may modify h → γγ and γZ decays at one-loop. However, one unexplored aspect of such by symmetry should also expect modifications hZZ coupling one-loop and, more generally, production decay channels tree-level. In this paper we investigate full BSM modified corrections associated both LHC a future lepton collider in two simple SM extensions. From inclusive differential NLO cross sections find BSM-NLO can be as large $ \mathcal{O} $ (≿ 10%) when compared expectation, consistent with other precision measurements, even where diphoton rate are not significant. At comparable involved QCD uncertainties. section measured high accuracy ( (1%) independent uncertainties total width couplings), deviation could easily observed if states remain kinematic reach. This expected for model-independent determination hγγ collider, which (15%). work demonstrates measurements constitute powerful probe sectors will valuable indirectly exploring scenarios.