Hayrapetyan, A.Tumasyan, A.Adam, W.Andrejkovic, J. W.Benato, L.Bergauer, T.Druzhkin, D.2026-02-102026-02-1020251029-8479https://doi.org/10.1007/JHEP12(2025)052Grunewald, Martin/0000-0002-5754-0388; Tuominiemi, Jorma/0000-0003-0386-8633; Lampén, Tapio/0000-0002-8398-4249; Voutilainen, Mikko/0000-0002-5200-6477; Lampén, Tapio/0000-0002-8398-4249; Bharthuar, Shudhashil/0000-0001-5871-9622; Rantanen, Milla-Maarit/0000-0002-6764-0016; Grunewald, Martin/0000-0002-5754-0388; Lehti, Sami/0000-0003-1370-5598; Lehti, Sami/0000-0003-1370-5598; Myllymäki, Mikael/0000-0003-0510-3810A 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 ProductionArticle10.1007/JHEP12(2025)0522-s2.0-105027981837