Tumasyan, A. R.Adam, WolfgangAndrejkovic, J. W.Bergauer, ThomasChatterjee, SumanDamanakis, KonstantinosJeitler, Manfred A.2025-06-112025-06-1120251029-8479https://doi.org/10.1007/JHEP02(2025)040A 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. © 2025 Elsevier B.V., All rights reserved.eninfo:eu-repo/semantics/openAccessBeyond Standard ModelHadron-Hadron ScatteringHiggs PhysicsJetsArticle10.1007/JHEP02(2025)0402-s2.0-105012449105