Skip to main navigation Skip to search Skip to main content

Evidence for production of single top quarks and first direct measurement of |Vtb|

  • V. M. Abazov*
  • , B. Abbott
  • , M. Abolins
  • , B. S. Acharya
  • , M. Adams
  • , T. Adams
  • , E. Aguilo
  • , S. H. Ahn
  • , M. Ahsan
  • , G. D. Alexeev
  • , G. Alkhazov
  • , A. Alton
  • , G. Alverson
  • , G. A. Alves
  • , M. Anastasoaie
  • , L. S. Ancu
  • , T. Andeen
  • , S. Anderson
  • , B. Andrieu
  • , M. S. Anzelc
  • Y. Arnoud, M. Arov, A. Askew, B. Åsman, A. C.S. Assis Jesus, O. Atramentov, C. Autermann, C. Avila, C. Ay, F. Badaud, A. Baden, L. Bagby, B. Baldin, D. V. Bandurin, P. Banerjee, S. Banerjee, E. Barberis, P. Bargassa, P. Baringer, C. Barnes, J. Barreto, J. F. Bartlett, U. Bassler, D. Bauer, S. Beale, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, A. Bellavance, J. A. Benitez, S. B. Beri, G. Bernardi, R. Bernhard, L. Berntzon, I. Bertram, M. Besançon, R. Beuselinck, V. A. Bezzubov, P. C. Bhat, V. Bhatnagar, M. Binder, C. Biscarat, I. Blackler, G. Blazey, F. Blekman, S. Blessing, D. Bloch, K. Bloom, A. Boehnlein, D. Boline, T. A. Bolton, E. E. Boos, G. Borissov, K. Bos, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, N. J. Buchanan, D. Buchholz, M. Buehler, V. Buescher, V. Bunichev, S. Burdin, S. Burke, T. H. Burnett, E. Busato, C. P. Buszello, J. M. Butler, P. Calfayan, S. Calvet, J. Cammin, S. Caron, W. Carvalho, B. C.K. Casey, N. M. Cason, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K. M. Chan, A. Chandra, F. Charles, E. Cheu, F. Chevallier, D. K. Cho, S. Choi, B. Choudhary, L. Christofek, D. Claes, B. Clément, C. Clément, Y. Coadou, M. Cooke, W. E. Cooper, M. Corcoran, F. Couderc, M. C. Cousinou, B. Cox, S. Crépé-Renaudin, D. Cutts, M. Ćwiok, H. Da Motta, A. Das, M. Das, B. Davies, G. Davies, K. De, P. De Jong, S. J. De Jong, E. De La Cruz-Burelo, C. De Oliveira Martins, J. D. Degenhardt, F. Déliot, M. Demarteau, R. Demina, D. Denisov, S. P. Denisov, S. Desai, H. T. Diehl, M. Diesburg, M. Doidge, A. Dominguez, H. Dong, L. V. Dudko, L. Duflot, S. R. Dugad, D. Duggan, A. Duperrin, J. Dyer, A. Dyshkant, M. Eads, D. Edmunds, J. Ellison, V. D. Elvira, Y. Enari, S. Eno, P. Ermolov, H. Evans, A. Evdokimov, V. N. Evdokimov, L. Feligioni, A. V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H. E. Fisk, M. Ford, M. Fortner, H. Fox, S. Fu, S. Fuess, T. Gadfort, C. F. Galea, E. Gallas, E. Galyaev, C. Garcia, A. Garcia-Bellido, V. Gavrilov, A. Gay, P. Gay, W. Geist, D. Gelé, R. Gelhaus, C. E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, N. Gollub, B. Gómez, A. Goussiou, P. D. Grannis, H. Greenlee, Z. D. Greenwood, E. M. Gregores, G. Grenier, Ph Gris, J. F. Grivaz, A. Grohsjean, S. Grünendahl, M. W. Grünewald, F. Guo, J. Guo, G. Gutierrez, P. Gutierrez, A. Haas, N. J. Hadley, P. Haefner, S. Hagopian, J. Haley, I. Hall, R. E. Hall, L. Han, K. Hanagaki, P. Hansson, K. Harder, A. Harel, R. Harrington, J. M. Hauptman, R. Hauser, J. Hays, T. Hebbeker, D. Hedin, J. G. Hegeman, J. M. Heinmiller, A. P. Heinson, U. Heintz, C. Hensel, K. Herner, G. Hesketh, M. D. Hildreth, R. Hirosky, J. D. Hobbs, B. Hoeneisen, H. Hoeth, M. Hohlfeld, S. J. Hong, R. Hooper, P. Houben, Y. Hu, Z. Hubacek, V. Hynek, I. Iashvili, R. Illingworth, A. S. Ito, S. Jabeen, M. Jaffré, S. Jain, K. Jakobs, C. Jarvis, A. Jenkins, R. Jesik, K. Johns, C. Johnson, M. Johnson, A. Jonckheere, P. Jonsson, A. Juste, D. Käfer, S. Kahn, E. Kajfasz, A. M. Kalinin, J. M. Kalk, J. R. Kalk, S. Kappler, D. Karmanov, J. Kasper, P. Kasper, I. Katsanos, D. Kau, R. Kaur, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y. M. Kharzheev, D. Khatidze, H. Kim, T. J. Kim, M. H. Kirby, B. Klima, J. M. Kohli, J. P. Konrath, M. Kopal, V. M. Korablev, J. Kotcher, B. Kothari, A. Koubarovsky, A. V. Kozelov, D. Krop, A. Kryemadhi, T. Kuhl, A. Kumar, S. Kunori, A. Kupco, T. Kurča, J. Kvita, D. Lam, S. Lammers, G. Landsberg, J. Lazoflores, A. C. Le Bihan, P. Lebrun, W. M. Lee, A. Leflat, F. Lehner, V. Lesne, J. Leveque, P. Lewis, J. Li, L. Li, Q. Z. Li, S. M. Lietti, J. G.R. Lima, D. Lincoln, J. Linnemann, V. V. Lipaev, R. Lipton, Z. Liu, L. Lobo, A. Lobodenko, M. Lokajicek, A. Lounis, P. Love, H. J. Lubatti, M. Lynker, A. L. Lyon, A. K.A. MacIel, R. J. Madaras, P. Mättig, C. Magass, A. Magerkurth, N. Makovec, P. K. Mal, H. B. Malbouisson, S. Malik, V. L. Malyshev, H. S. Mao, Y. Maravin, R. McCarthy, A. Melnitchouk, A. Mendes, L. Mendoza, P. G. Mercadante, M. Merkin, K. W. Merritt, A. Meyer, J. Meyer, M. Michaut, H. Miettinen, T. Millet, J. Mitrevski, J. Molina, R. K. Mommsen, N. K. Mondal, J. Monk, R. W. Moore, T. Moulik, G. S. Muanza, M. Mulders, M. Mulhearn, O. Mundal, L. Mundim, E. Nagy, M. Naimuddin, M. Narain, N. A. Naumann, H. A. Neal, J. P. Negret, P. Neustroev, C. Noeding, A. Nomerotski, S. F. Novaes, T. Nunnemann, V. O'Dell, D. C. O'Neil, G. Obrant, C. Ochando, V. Oguri, N. Oliveira, D. Onoprienko, N. Oshima, J. Osta, R. Otec, G. J. Otero Y Garzón, M. Owen, P. Padley, M. Pangilinan, N. Parashar, S. J. Park, S. K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, G. Pawloski, P. M. Perea, M. Perfilov, K. Peters, Y. Peters, P. Pétroff, M. Petteni, R. Piegaia, J. Piper, M. A. Pleier, P. L.M. Podesta-Lerma, V. M. Podstavkov, Y. Pogorelov, M. E. Pol, A. Pompos, B. G. Pope, A. V. Popov, C. Potter, W. L. Prado Da Silva, H. B. Prosper, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, M. S. Rangel, K. J. Rani, K. Ranjan, P. N. Ratoff, P. Renkel, S. Reucroft, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, S. Robinson, R. F. Rodrigues, C. Royon, P. Rubinov, R. Ruchti, G. Sajot, A. Sánchez-Hernández, M. P. Sanders, A. Santoro, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R. D. Schamberger, Y. Scheglov, H. Schellman, P. Schieferdecker, C. Schmitt, C. Schwanenberger, A. Schwartzman, R. Schwienhorst, J. Sekaric, S. Sengupta, H. Severini, E. Shabalina, M. Shamim, V. Shary, A. A. Shchukin, R. K. Shivpuri, D. Shpakov, V. Siccardi, R. A. Sidwell, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, R. P. Smith, G. R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, X. Song, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, M. Souza, B. Spurlock, J. Stark, J. Steele, V. Stolin, A. Stone, D. A. Stoyanova, J. Strandberg, S. Strandberg, M. A. Strang, M. Strauss, R. Ströhmer, D. Strom, M. Strovink, L. Stutte, S. Sumowidagdo, P. Svoisky, A. Sznajder, M. Talby, P. Tamburello, W. Taylor, P. Telford, J. Temple, B. Tiller, M. Titov, V. V. Tokmenin, M. Tomoto, T. Toole, I. Torchiani, T. Trefzger, S. Trincaz-Duvoid, D. Tsybychev, B. Tuchming, C. Tully, P. M. Tuts, R. Unalan, L. Uvarov, S. Uvarov, S. Uzunyan, B. Vachon, P. J. Van Den Berg, B. Van Eijk, R. Van Kooten, W. M. Van Leeuwen, N. Varelas, E. W. Varnes, A. Vartapetian, I. A. Vasilyev, M. Vaupel, P. Verdier, L. S. Vertogradov, M. Verzocchi, M. Vetterli, F. Villeneuve-Seguier, P. Vint, J. R. Vlimant, E. Von Toerne, M. Voutilainen, M. Vreeswijk, H. D. Wahl, L. Wang, M. H.L.S. Wang, J. Warchol, G. Watts, M. Wayne, G. Weber, M. Weber, H. Weerts, N. Wermes, M. Wetstein, A. White, D. Wicke, G. W. Wilson, S. J. Wimpenny, M. Wobisch, J. Womersley, D. R. Wood, T. R. Wyatt, Y. Xie, S. Yacoob, R. Yamada, M. Yan, T. Yasuda, Y. A. Yatsunenko, K. Yip, H. D. Yoo, S. W. Youn, C. Yu, J. Yu, A. Yurkewicz, A. Zatserklyaniy, C. Zeitnitz, D. Zhang, T. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, A. Zieminski, V. Zutshi, E. G. Zverev
*Corresponding author for this work
  • Joint Institute for Nuclear Research, Dubna
  • University of Oklahoma Bioengineering Center
  • Michigan State University
  • Tata Institute of Fundamental Research, Mumbai
  • University of Illinois at Chicago
  • Florida State University
  • University of Alberta
  • Simon Fraser University
  • York University
  • McGill University
  • Korea University
  • Kansas State University
  • Petersburg Nuclear Physics Institute (PNPI)
  • University of Michigan, Ann Arbor
  • Augustana College
  • Northeastern University
  • Centro Brasileiro de Pesquisas Físicas
  • Radboud University
  • Northwestern University
  • University of Arizona
  • Universités Paris VI and VII
  • Université Joseph Fourier Grenoble 1
  • Northern Illinois University
  • Lund University
  • Stockholm University
  • Uppsala University
  • Universidade do Estado do Rio de Janeiro
  • RWTH Aachen University
  • Universidad de los Andes Colombia
  • Johannes Gutenberg University Mainz
  • Université Blaise Pascal
  • University of Maryland, College Park
  • Fermi National Accelerator Laboratory
  • Rice University
  • University of Kansas
  • Imperial College London
  • University of Rochester
  • University of Nebraska-Lincoln
  • Panjab University
  • University of Freiburg
  • Aix-Marseille Université
  • Lancaster University
  • CEA Saclay
  • Institute for High Energy Physics
  • Ludwig Maximilian University of Munich
  • Universite Claude Bernard Lyon 1
  • IN2P3-CNRS
  • Université de Haute-Alsace
  • Boston University
  • Lomonosov Moscow State University
  • University of Amsterdam/NIKHEF
  • Brown University
  • University of Texas at Arlington
  • Columbia University
  • University of Virginia
  • University of Washington
  • University of Notre Dame
  • Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
  • University of California at Riverside
  • Sungkyunkwan University
  • University of Delhi
  • University of Manchester
  • University College Dublin
  • Louisiana Tech University
  • Stony Brook University
  • Université Paris-Sud
  • Indiana University Bloomington
  • Institute for Theoretical and Experimental Physics
  • Universidade Estadual Paulista Júlio de Mesquita Filho
  • Princeton University
  • California State University, Fresno
  • University of Science and Technology of China
  • Iowa State University
  • University of Wuppertal
  • Czech Technical University in Prague
  • Charles University
  • State University of New York at Buffalo
  • Brookhaven National Laboratory
  • Southern Methodist University
  • Oklahoma State University
  • Czech Academy of Sciences
  • Physik Institut der Universität Zürich
  • University of California at Berkeley
  • University of Mississippi
  • Universität Bonn
  • Radcliffe Institute for Advanced Study
  • Purdue University Calumet
  • Universidad de Buenos Aires
  • Langston University
  • TRIUMF
  • Helsinki Institute of Physics

Research output: Contribution to journalArticlepeer-review

192 Scopus citations

Abstract

The D0 Collaboration presents first evidence for the production of single top quarks at the Fermilab Tevatron pp̄ collider. Using a 0.9fb-1 dataset, we apply a multivariate analysis to separate signal from background and measure σ(pp̄→tb+X,tqb+X)=4.9±1.4pb. The probability to measure a cross section at this value or higher in the absence of a signal is 0.035%, corresponding to a 3.4 standard deviation significance. We use the cross section measurement to directly determine the Cabibbo-Kobayashi-Maskawa matrix element that describes the Wtb coupling and find 0.68<|Vtb|≤1 at 95% C.L. within the standard model.

Original languageEnglish
Article number181802
JournalPhysical Review Letters
Volume98
Issue number18
DOIs
StatePublished - 1 May 2007

Fingerprint

Dive into the research topics of 'Evidence for production of single top quarks and first direct measurement of |Vtb|'. Together they form a unique fingerprint.

Cite this