Chatrchyan, S.Khachatryan, V.Sirunyan, A. M.Tumasyan, A.Adam, W.Bergauer, T.The CMS Collaboration2025-03-072025-03-0720130031-90071079-7114https://doi.org/10.1103/PhysRevLett.111.211804https://hdl.handle.net/20.500.12507/2897Searches for anomalous top quark-antiquark production are presented, based on pp collisions at root s = 8 TeV. The data, corresponding to an integrated luminosity of 19.7 fb(-1), were collected with the CMS detector at the LHC. The observed t (t) over bar invariant mass spectrum is found to be compatible with the standard model prediction. Limits on the production cross section times branching fraction probe, for the first time, a region of parameter space for certain models of new physics not yet constrained by precision measurements.eninfo:eu-repo/semantics/openAccessSearches for new physics using the t(t)over-bar invariant mass distribution in pp collisions at ?s=8 TeVArticle11121WOS:00032724630000110.1103/PhysRevLett.111.211804Q1