Probing composite Higgs boson substructure at the HL-LHC

The Higgs boson may well be a composite scalar with finite extension in space. Owing to the momentum dependence of its couplings, imprints such pseudo Goldstone show up tails various kinematic distributions at LHC, distinguishing it from an elementary state. From bottom up, we construct momentum-dependent form factors capture interactions weak gauge bosons. We demonstrate their impact differential parameters for $pp\ensuremath{\rightarrow}{Z}^{*}H\ensuremath{\rightarrow}{l}^{+}{l}^{\ensuremath{-}}b\overline{b}$ channel. that this channel can provide important handle probe Higgs' substructure HL-LHC.