Khachatryan, V.Sirunyan, A. M.Tumasyan, A.Adam, W.Asilar, E.Bergauer, T.The CMS Collaboration2025-03-072025-03-0720171029-8479https://doi.org/10.1007/JHEP03(2017)101https://hdl.handle.net/20.500.12507/2955The results of a first search for CP violation in the production and decay of top quark-antiquark (t (t) over bar) pairs are presented. The search is based on asymmetries in T-odd, triple-product correlation observables, where T is the time-reversal operator. The analysis uses a sample of proton-proton collisions at root s = 8 TeV collected by the CMS experiment, corresponding to an integrated luminosity of 19.7fb(-1). Events are selected having one electron or muon and at least four jets. The T-odd observables are measured using four-momentum vectors associated with t (t) over bar production and decay. The measured asymmetries exhibit no evidence for CP-violating effects, consistent with the expectation from the standard model.eninfo:eu-repo/semantics/openAccessCP violationHadron-Hadron scattering (experiments)Top physicsArticle3WOS:0003977054000052-s2.0-8501631114410.1007/JHEP03(2017)101Q1Q1