Hayrapetyan, A.Tumasyan, A.Adam, W.Andrejkovic, J. W.Benato, L.Bergauer, T.Chatterjee, S.2026-04-252026-04-2520251029-8479https://doi.org/10.1007/JHEP12(2025)052https://hdl.handle.net/11486/8179A search for t-channel exchange of leptoquarks (LQs) is performed in dimuon and dielectron spectra using proton-proton collision data collected at TeV with the CMS detector at the CERN LHC. The data correspond to an integrated luminosity of 138 fb(-1). Eight scenarios are considered, in which up or down quarks couple to muons or electrons via a scalar or vector LQ exchange, for dilepton invariant masses above 500 GeV. The LQ masses are probed up to 5 TeV, beyond a regime probed by previous pair-production and single-production searches. The differential distributions of dilepton events are fit to templates that model the nonresonant LQ exchange and various standard model background processes. Limits are set on LQ-fermion coupling strengths for scalar and vector LQ masses in the 1-5 TeV range at 95% confidence level, establishing stringent limits on first- and second-generation LQs.eninfo:eu-repo/semantics/openAccessBeyond Standard ModelHadron-Hadron ScatteringLepton ProductionArticle1210.1007/JHEP12(2025)0522-s2.0-105027981837Q1WOS:001670171400001Q10000-0001-7472-50290000-0002-7818-23640000-0003-1967-67830000-0003-1327-90580000-0002-2729-62730000-0002-5200-64770009-0005-9565-6399