Abazov, V. M.Abbott, B.Abolins, M.Acharya, B. S.Adams, M.Adams, T.Aguilo, E.Ahn, S. H.Ahsan, M.Alexeev, G. D.Alkhazov, G.Alton, A.Alverson, G.Alves, G. A.Anastasoaie, M.Ancu, L. S.Andeen, T.Anderson, S.Andrieu, B.Anzelc, M. S.Aoki, M.Arnoud, Y.Arov, M.Arthaud, M.Askew, A.Asman, B.Jesus, A. C. S. AssisAtramentov, M.Avila, C.Ay, C.Badaud, F.Baden, A.Bagby, L.Baldin, B.Bandurin, D. V.Banerjee, P.Banerjee, S.Barberis, E.Barfuss, A. -F.Bargassa, P.Baringer, P.Barreto, J.Bartlett, J. F.Bassler, U.Bauer, D.Beale, S.Bean, A.Begalli, M.Begel, M.Belanger-Champagne, C.Bellantoni, L.Bellavance, A.Benitez, J. A.Beri, S. B.Bernardi, G.Bernhard, R.Bertram, I.Besancon, M.Beuselinck, R.Bezzubov, V. A.Bhat, P. C.Bhatnagara, V.Biscarat, C.Blazey, G.Blekman, F.Blessing, S.Bloch, D.Bloom, K.Boehnlein, A.Boline, D.Bolton, T. A.Borissov, G.Bose, T.Brandt, A.Brock, R.Brooijmans, G.Bross, A.Brown, D.Buchanan, N. J.Buchholz, D.Buehler, M.Buescher, V.Bunichev, V.Burdin, S.Burke, S.Burnett, T. H.Buszello, C. P.Butler, J. M.Calfayan, P.Calvet, S.Cammin, J.Carvalho, W.Casey, B. C. K.Castilla-Valdez, H.Chakrabarti, S.Chakraborty, D.Chan, K.Chan, K. M.Chandra, A.Charles, F.Cheu, E.Chevallier, F.Cho, D. K.Choi, S.Choudhary, B.Christofek, L.Christoudias, T.Cihangir, S.Claes, D.Coadou, Y.Cooke, M.Cooper, W. E.Corcoran, M.Couderc, F.Cousinou, M. -C.Crepe-Renaudin, S.Cutts, D.Cwiok, M.da Motta, H.Das, A.Davies, G.De, K.de Jong, S. J.De La Cruz-Burelo, E.Martins, C. de OliveiraDegenhardt, J. D.Deliot, F.Demarteau, M.Demina, R.Denisov, D.Denisov, S. P.Desai, S.Diehl, H. T.Diesburg, M.Dominguez, A.Dong, H.Dudko, L. V.Duflot, L.Dugad, S. R.Duggan, D.Duperrin, A.Dyer, J.Dyshkant, A.Eads, M.Edmunds, D.Ellison, J.Elvira, V. D.Enari, Y.Eno, S.Ermolov, R.Evans, H.Evdokimov, A.Evdokimov, V. N.Ferapontov, A. V.Ferbel, T.Fiedler, F.Filthaut, F.Fisher, W.Fisk, H. E.Fortner, M.Fox, H.Fu, S.Fuess, S.Gadfort, T.Galea, C. F.Gallas, E.Garcia, C.Garcia-Bellido, A.Gavrilov, V.Gay, P.Geist, W.Gele, D.Gerber, C. E.Gershtein, Y.Gillberg, D.Ginther, G.Gollub, N.Gomez, B.Goussiou, A.Grannis, P. D.Greenlee, H.Greenwood, Z. D.Gregores, E. M.Grenier, G.Gris, Ph.Grivaz, J. -F.Grohsjean, A.Gruenendahl, S.Gruenewald, M. W.Guo, F.Guo, J.Gutierrez, G.Gutierrez, P.Haas, A.Hadley, N. J.Haefner, P.Hagopian, S.Haley, J.Hall, I.Hall, R. E.Han, L.Harderr, K.Harel, A.Harrington, R.Hauptman, J. M.Hauser, R.Hays, J.Hebbeker, T.Hedin, D.Hegeman, J. G.Heinmiller, J. M.Heinson, A. P.Heintz, U.Hensel, C.Herner, K.Hesketh, G.Hildreth, M. D.Hirosky, R.Hobbs, J. D.Hoeneisen, B.Hoeth, H.Hohlfeld, M.Hong, S. J.Hossain, S.Houben, P.Hu, Y.Hubacek, Z.Hynek, V.Iashvili, I.Illingworth, R.Ito, A. S.Jabeen, S.Jaffre, M.Jain, S.Jakobs, K.Jarvis, C.Jesik, R.Johns, K.Johnson, C.Johnson, M.Jonckheere, A.Jonsson, P.Juste, A.Kajfasz, E.Kalinin, A. M.Kalk, J. M.Kappler, S.Karmanov, D.Kasper, P. A.Katsanos, I.Kau, D.Kaushik, V.Kehoe, R.Kermiche, S.Khalatyan, N.Khanov, A.Kharchilava, A.Kharzheev, Y. M.Khatidze, D.Kim, T. J.Kirby, M. H.Kirsch, M.Klima, B.Kohli, J. M.Konrath, J. -RKorablev, V. M.Kozelov, A. V.Kraus, J.Krop, D.Kuhl, T.Kumar, A.Kupco, A.Kurca, T.Kvita, J.Lacroix, F.Lam, D.Lammers, S.Landsberg, G.Lebrun, P.Lee, W. M.Leflat, A.Lellouch, J.Leveque, J.Li, J.Li, L.Li, Q. Z.Lietti, S. M. [UNESP]Lima, J. G. R.Lincoln, D.Linnemann, J.Lipaev, V. V.Lipton, R.Liu, Y.Liu, Z.Lobodenko, A.Lokajicek, M.Love, P.Lubatti, H. J.Luna, R.Lyon, A. L.Maciel, A. K. A.Mackin, D.Madaras, R. J.Maettig, P.Magass, C.Magerkurth, A.Mal, P. K.Malbouisson, H. B.Malik, S.Malyshev, V. L.Mao, H. S.Maravin, Y.Martin, B.McCarthy, R.Melnitchouk, A.Mendoza, L.Mercadante, P. G. [UNESP]Merkin, M.Merritt, K. W.Meyer, A.Meyer, J.Millet, T.Mitrevski, J.Molina, J.Mommsen, R. K.Mondal, N. K.Moore, R. W.Moulik, T.Muanza, G. S.Mulders, M.Mulhearn, M.Mundal, O.Mundim, L.Nagy, E.Naimuddin, M.Narain, M.Naumann, N. A.Neal, H. A.Negret, J. P.Neustroev, P.Nilsen, H.Nogima, H.Novaes, Sérgio Ferraz [UNESP]Nunnemann, T.O'Dell, V.O'Neil, D. C.Obrant, G.Ochando, C.Onoprienko, D.Oshima, N.Osman, N.Osta, J.Otec, R.Otero y Garzon, G. J.Owen, M.Padley, P.Pangilinan, M.Parashar, N.Park, S. -J.Park, S. K.Parsons, J.Partridge, R.Parua, N.Patwa, A.Pawloski, G.Penning, B.Perfilov, M.Peters, K.Peters, Y.Petroff, P.Petteni, M.Piegaia, R.Piper, J.Pleier, M. -A.Podesta-Lerma, P. L. M.Podstavkov, V. M.Pogorelov, Y.Pol, M. -E.Polozov, P.Pope, B. G.Popov, A. V.Potter, C.da Silva, W. L. PradoProsper, H. B.Protopopescu, S.Qian, J.Quadt, A.Quinn, B.Rakitine, A.Rangel, M. S.Ranjan, K.Ratoff, P. N.Renkel, P.Reucroft, S.Rich, P.Rieger, J.Rijssenbeek, M.Ripp-Baudot, I.Rizatdinova, F.Robinson, S.Rodrigues, R. F.Rominsky, M.Royon, C.Rubinov, P.Ruchti, R.Safronov, G.Sajot, G.Sanchez-Hernandez, A.Sanders, M. P.Santoro, A.Savage, G.Sawyer, L.Scanlon, T.Schaile, D.Schamberger, R. D.Scheglov, Y.Schellman, H.Schliephake, T.Schwanenberger, C.Schwartzman, A.Schwienhorst, R.Sekaric, J.Severini, H.Shabalina, E.Shamim, M.Shary, V.Shchukin, A. A.Shivpuri, R. K.Siccardi, V.Simak, V.Sirotenko, V.Skubic, R.Slattery, P.Smirnov, D.Snow, G. R.Snow, J.Snyder, S.Soeldner-Rembold, S.Sonnenschein, L.Sopczak, A.Sosebee, M.Soustruznik, K.Spurlock, B.Stark, J.Steele, J.Stolin, V.Stoyanova, D. A.Strandberg, J.Strandberg, S.Strang, M. A.Strauss, E.Strauss, M.Stroehmer, R.Strom, D.Stutte, L.Sumowidagdo, S.Svoisky, P.Sznajder, A.Tamburello, R.Tanasijczuk, A.Taylor, W.Temple, J.Tiller, B.Tissandier, F.Titov, M.Tokmenin, V. V.Toole, T.Torchiani, I.Trefzger, I.Tsybychev, D.Tuchming, B.Tully, C.Tuts, P. M.Unalan, R.Uvarov, L.Uvarov, S.Uzunyan, S.Vachon, B.van den Berg, P. J.Van Kooten, R.van Leeuwen, W. M.Varelas, N.Varnes, E. W.Vasilyev, I. A.Vaupel, M.Verdier, P.Vertogradov, L. S.Verzocchi, M.Villeneuve-Seguier, F.Vint, P.Vokac, P.Von Toerne, E.Voutilainen, M.Wagner, R.Wahl, H. D.Wang, L.Wang, M. H. L. S.Warchol, J.Watts, G.Wayne, M.Weber, G.Weber, M.Welty-Rieger, L.Wenger, A.Wermes, N.Wetstein, M.White, A.Wicke, D.Wilson, G. W.Wimpenny, S. J.Wobisch, M.Wood, D. R.Wyatt, T. R.Xie, Y.Yacoob, S.Yamada, R.Yan, M.Yasuda, T.Yatsunenko, Y. A.Yip, K.Yoo, H. D.Youn, S. W.Yu, J.Zatserklyaniy, A.Zeitnitz, C.Zhao, T.Zhou, B.Zhu, J.Zielinski, M.Zieminska, D.Zieminski, A.Zivkovic, L.Zutshi, V.Zverev, E. G.2014-05-202014-05-202008-08-07Physics Letters B. Amsterdam: Elsevier B.V., v. 666, n. 1, p. 23-30, 2008.0370-2693http://hdl.handle.net/11449/24074We present a measurement of the fraction of inclusive W +jets events produced with net charm quantum number 11, denoted W + c-jet, in p collisions at root s = 1.96 TeV using approximately 1 fb(-1) of data collected by the do detector at the Fermilab Tevatron Collider. We identify the W +jets events via the leptonic W boson decays. Candidate W + c-jet events are selected by requiring a jet containing a muon in association with a reconstructed W boson and exploiting the charge correlation between this muon and W boson decay lepton to perform a nearly model-independent background subtraction. We measure the fraction of W + c-jet events in the inclusive W +jets sample for jet PT > 20 GeV and pseudorapidity |eta| < 2.5 to be 0.074 +/- 0.019(stat.) +/-(0.012)(0.014) (syst.), in agreement with theoretical predictions. The probability that background fluctuations could produce the observed fraction of W + c-jet events is estimated to be 2.5 x 10(-4), which corresponds to a 3.5 sigma statistical significance. Published by Elsevier B.V.23-30engArtigo10.1016/j.physletb.2008.06.067WOS:000258724500005Acesso restrito