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Measurement of the t-channel single-top-quark production cross section and of the |Vtb| CKM matrix element in pp collisions at √S = 8 TeVKhachatryan, V.Sirunyan, A.M.Tumasyan, A.Adam, W.Bergauer, T.Dragicevic, M.Erö, J.Fabjan, C.Friedl, M.Frühwirth, R.Ghete, V.M.Hartl, C.Hörmann, N.Hrubec, J.Jeitler, M.Kiesenhofer, W.Knünz, V.Krammer, M.Krätschmer, I.Liko, D.Mikulec, I.Rabady, D.Rahbaran, B.Rohringer, H.Schöfbeck, R.Strauss, J.Taurok, A.Treberer-Treberspurg, W.Waltenberger, W.Wulz, C.-E.Mossolov, V.Shumeiko, N.Suarez Gonzalez, J.Alderweireldt, S.Bansal, M.Bansal, S.Cornelis, T.De Wolf, E.A.Janssen, X.Knutsson, A.Luyckx, S.Ochesanu, S.Roland, B.Rougny, R.Van De Klundert, M.Van Haevermaet, H.Van Mechelen, P.Van Remortel, N.Van Spilbeeck, A.Blekman, F.Hadron-Hadron ScatteringTop physicsMeasurements are presented of the t-channel single-top-quark production cross section in proton-proton collisions at √S = 8 TeV. The results are based on a data sample corresponding to an integrated luminosity of 19.7 fb -1 recorded with the CMS detector at the LHC. The cross section is measured inclusively, as well as separately for top (t) and antitop t̄, in final states with a muon or an electron. The measured inclusive t-channel cross section is σ t-ch. = 83.6 ± 2.3 (stat.) ± 7.4 (syst.) pb. The single t and t̄ cross sections are measured to be σ t-ch.(t) = 53.8 ± 1.5 (stat.) ± 4.4 (syst.) pb and σ t-ch. t̄= 27.6 ± 1.3 (stat.) ± 3.7 (syst.) pb, respectively. The measured ratio of cross sections is R t-ch. = σ t-ch.(t)/σ t-ch. t̄ = 1.95 ± 0.10 (stat.) ± 0.19 (syst.), in agreement with the standard model prediction. The modulus of the Cabibbo-Kobayashi-Maskawa matrix element V tb is extracted and, in combination with a previous CMS result at √S = 7 TeV, a value |V tb| = 0.998 ± 0.038 (exp.) ± 0.016 (theo.) is obtained. [Figure not available: see fulltext.] © 2014 The Author(s).Springer Verlag2014Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/15422https://doi.org/10.1007/jhep06(2014)0901126-6708enJournal of High Energy Physicsinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/15422