Tumasyan, A.Adam, W.Andrejkovic, J. W.Bergauer, T.Chatterjee, S.Damanakis, K.Dragicevic, M.2026-04-252026-04-2520251029-8479https://doi.org/10.1007/JHEP02(2025)040https://hdl.handle.net/11486/8150A search is presented for the resonant production of a pair of standard model-like Higgs bosons using data from proton-proton collisions at a centre-of-mass energy of 13 TeV, collected by the CMS experiment at the CERN LHC in 2016-2018, corresponding to an integrated luminosity of 138 fb(-1). The final state consists of two b quark-antiquark pairs. The search is conducted in the region of phase space where at least one of the pairs is highly Lorentz-boosted and is reconstructed as a single large-area jet. The other pair may be either similarly merged or resolved, the latter reconstructed using two b-tagged jets. The data are found to be consistent with standard model processes and are interpreted as 95% confidence level upper limits on the product of the cross sections and the branching fractions of the spin-0 radion and the spin-2 bulk graviton that arise in warped extradimensional models. The limits set are in the range 9.74-0.29 fb and 4.94-0.19 fb for a narrow radion and a graviton, respectively, with masses between 1 and 3 TeV. For a radion and for a bulk graviton with widths 10% of their masses, the limits are in the range 12.5-0.35 fb and 8.23-0.23 fb, respectively, for the same masses. These limits result in the exclusion of a narrow-width graviton with a mass below 1.2 TeV, and of narrow and 10%-width radions with masses below 2.6, and 2.9 TeV, respectively.eninfo:eu-repo/semantics/openAccessBeyond Standard ModelHadron-Hadron ScatteringHiggs PhysicsJetsArticle210.1007/JHEP02(2025)0402-s2.0-105012449105Q1WOS:001426421100001Q10000-0002-7460-59720000-0002-7469-69740000-0001-7375-48990000-0002-6792-95220000-0001-5741-33570000-0002-8398-42490000-0003-0471-8549