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J.Strauss, M.Stroehmer, R.Diesburg, M.Strom, D.Lellouch, J.Stutte, L.Heintz, U.Sumowidagdo, S.Belanger-Champagne, C.Svoisky, P.Oshima, N.Takahashi, M.Tanasijczuk, A.Taylor, W.Tiller, B.Tissandier, F.Li, J.Dominguez, A.Titov, M.Coadou, Y.Tokmenin, V. V.Osman, N.Torchiani, I.Tsybychev, D.Bellantoni, L.Tuchming, B.Tully, C.Tuts, P. M.Li, L.Unalan, R.Uvarov, L.Dorland, T.Osta, J.Askew, A.Uvarov, S.Uzunyan, S.Vachon, B.van den Berg, P. J.Van Kooten, R.Bellavance, A.Li, Q. Z.van Leeuwen, W. M.Varelas, N.Hall, R. E.Varnes, E. W.Vasilyev, I. A.Hensel, C.Dubey, A.Verdier, P.Vertogradov, L. S.Verzocchi, M.Vilanova, D.Lietti, S. M. [UNESP]Vint, P.Kurca, T.Vokac, P.Benitez, J. A.Voutilainen, M.Wagner, R.Herner, K.Wahl, H. D.Dudko, L. V.Wang, M. H. L. S.Warchol, J.Baldin, B.Bargassa, P.Watts, G.Wayne, M.Weber, G.Weber, M.Welty-Rieger, L.Beri, S. B.Hesketh, G.Wenger, A.Wetstein, M.Duflot, L.Otec, R.Lim, J. K.White, A.Wicke, D.Williams, M. R. J.Wilson, G. W.Wimpenny, S. J.Wobisch, M.Wood, D. 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[UNESP]Merkin, M.Das, A.Banerjee, S.Merritt, K. W.Meyer, A.Meyer, J.Mitrevski, J.Mommsen, R. K.Hagopian, S.Petroff, P.Mondal, N. K.Moore, R. W.Moulik, T.Muanza, G. S.Davies, G.Mulhearn, M.Barberis, E.Mundal, O.Mundim, L.Nagy, E.Piegaia, R.Haley, J.Naimuddin, M.Narain, M.Neal, H. A.Negret, J. P.Neustroev, P.De, K.Nilsen, H.Nogima, H.Barfuss, A. -F.Barreto, J.Novaes, Sérgio Ferraz [UNESP]Hall, I.Nunnemann, T.Piper, J.Pleier, M. -A.Podesta-Lerma, P. L. M.Lacroix, F.Podstavkov, V. M.Deliot, F.Han, L.Pogorelov, Y.Pol, M. -E.Polozov, P.Popov, A. V.Potter, C.Prado da Silva, W. L.Bartlett, J. F.Lam, D.Prosper, H. B.Protopopescu, S.Qian, J.Harder, K.Demarteau, M.Quadt, A.Quinn, B.Rakitine, A.Rangel, M. S.Ranjan, K.Bagby, L.Ratoff, P. N.Renkel, P.Bassler, U.Rich, P.Harel, A.Rijssenbeek, M.Demina, R.Ripp-Baudot, I.Rizatdinova, F.Robinson, S.Lammers, S.Rodrigues, R. F.Rominsky, M.Royon, C.Rubinov, P.Ruchti, R.Hauptman, J. M.Bauer, D.Safronov, G.Alves, G. A.Sajot, G.Landsberg, G.Sanchez-Hernandez, A.2013-09-302014-05-202013-09-302014-05-202009-08-28Physical Review Letters. College Pk: Amer Physical Soc, v. 103, n. 9, p. 7, 2009.0031-9007http://hdl.handle.net/11449/24523We report observation of the electroweak production of single top quarks in pp collisions at s=1.96 TeV based on 2.3 fb(-1) of data collected by the D0 detector at the Fermilab Tevatron Collider. Using events containing an isolated electron or muon and missing transverse energy, together with jets originating from the fragmentation of b quarks, we measure a cross section of sigma(pp -> tb+X,tqb+X)=3.94 +/- 0.88 pb. The probability to measure a cross section at this value or higher in the absence of signal is 2.5x10(-7), corresponding to a 5.0 standard deviation significance for the observation.7engArtigo10.1103/PhysRevLett.103.092001WOS:000269718500021Acesso abertoWOS000269718500021.pdf