Search for flavor changing neutral currents via quark-gluon couplings in single top quark production using 2.3 fb-1 of pp̄ collisions

V. M. Abazov, B. Abbott, M. Abolins, B. S. Acharya, M. Adams, T. Adams, G. D. Alexeev, G. Alkhazov, A. Alton, G. Alverson, G. A. Alves, L. S. Ancu, M. Aoki, Y. Arnoud, M. Arov, A. Askew, B. Åsman, O. Atramentov, C. Avila, J. BackusMayes & 425 others F. Badaud, L. Bagby, B. Baldin, D. V. Bandurin, S. Banerjee, E. Barberis, A. F. Barfuss, P. Baringer, J. Barreto, J. F. Bartlett, U. Bassler, S. Beale, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, J. A. Benitez, S. B. Beri, G. Bernardi, R. Bernhard, I. Bertram, M. Besançon, R. Beuselinck, V. A. Bezzubov, P. C. Bhat, V. Bhatnagar, G. Blazey, S. Blessing, K. Bloom, A. Boehnlein, D. Boline, T. A. Bolton, E. E. Boos, G. Borissov, T. Bose, A. Brandt, O. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, X. B. Bu, D. Buchholz, M. Buehler, V. Buescher, V. Bunichev, S. Burdin, T. H. Burnett, C. P. Buszello, P. Calfayan, B. Calpas, S. Calvet, E. Camacho-Pérez, J. Cammin, M. A. Carrasco-Lizarraga, E. Carrera, B. C K Casey, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K. M. Chan, A. Chandra, G. Chen, S. Chevalier-Théry, D. K. Cho, S. W. Cho, S. Choi, B. Choudhary, T. Christoudias, S. Cihangir, D. Claes, J. Clutter, M. Cooke, W. E. Cooper, M. Corcoran, F. Couderc, M. C. Cousinou, A. Croc, D. Cutts, M. Ćwiok, A. Das, G. Davies, K. De, S. J. de Jong, E. De La Cruz-Burelo, F. Déliot, M. Demarteau, R. Demina, D. Denisov, S. P. Denisov, S. Desai, K. DeVaughan, H. T. Diehl, M. Diesburg, A. Dominguez, T. Dorland, A. Dubey, L. V. Dudko, D. Duggan, A. Duperrin, S. Dutt, A. Dyshkant, M. Eads, D. Edmunds, J. Ellison, V. D. Elvira, Y. Enari, S. Eno, H. Evans, A. Evdokimov, V. N. Evdokimov, G. Facini, A. V. Ferapontov, T. Ferbel, F. Fiedler, F. Filthaut, W. Fisher, H. E. Fisk, M. Fortner, H. Fox, S. Fuess, T. Gadfort, A. Garcia-Bellido, V. Gavrilov, P. Gay, W. Geist, W. Geng, D. Gerbaudo, C. E. Gerber, Y. Gershtein, D. Gillberg, G. Ginther, G. Golovanov, A. Goussiou, P. D. Grannis, S. Greder, 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, P. Haefner, S. Hagopian, J. Haley, L. Han, K. Harder, A. Harel, J. M. Hauptman, J. Hays, T. Hebbeker, D. Hedin, A. P. Heinson, U. Heintz, C. Hensel, I. Heredia De La Cruz, K. Herner, G. Hesketh, M. D. Hildreth, R. Hirosky, T. Hoang, J. D. Hobbs, B. Hoeneisen, M. Hohlfeld, S. Hossain, Y. Hu, Z. Hubacek, N. Huske, V. Hynek, I. Iashvili, R. Illingworth, A. S. Ito, S. Jabeen, M. Jaffré, S. Jain, D. Jamin, R. Jesik, K. Johns, M. Johnson, D. Johnston, A. Jonckheere, P. Jonsson, J. Joshi, A. Juste, K. Kaadze, E. Kajfasz, D. Karmanov, P. A. Kasper, I. Katsanos, R. Kehoe, S. Kermiche, N. Khalatyan, A. Khanov, A. Kharchilava, Y. N. Kharzheev, D. Khatidze, M. H. Kirby, M. Kirsch, J. M. Kohli, A. V. Kozelov, J. Kraus, A. Kumar, A. Kupco, T. Kurča, V. A. Kuzmin, J. Kvita, S. Lammers, G. Landsberg, P. Lebrun, H. S. Lee, W. M. Lee, J. Lellouch, L. Li, Q. Z. Li, S. M. Lietti, J. K. Lim, D. Lincoln, J. Linnemann, V. V. Lipaev, R. Lipton, Y. Liu, Z. Liu, A. Lobodenko, M. Lokajicek, P. Love, H. J. Lubatti, R. Luna-Garcia, A. L. Lyon, A. K A Maciel, D. Mackin, R. Madar, R. Magaña-Villalba, S. Malik, V. L. Malyshev, Y. Maravin, J. Martínez-Ortega, R. McCarthy, C. L. McGivern, M. M. Meijer, A. Melnitchouk, D. Menezes, P. G. Mercadante, M. Merkin, A. Meyer, J. Meyer, N. K. Mondal, T. Moulik, G. S. Muanza, M. Mulhearn, E. Nagy, M. Naimuddin, M. Narain, R. Nayyar, H. A. Neal, J. P. Negret, P. Neustroev, H. Nilsen, S. F. Novaes, T. Nunnemann, G. Obrant, D. Onoprienko, J. Orduna, N. Osman, J. Osta, G. J. Otero y Garzón, M. Owen, M. Padilla, M. Pangilinan, N. Parashar, V. Parihar, S. K. Park, J. Parsons, R. Partridge, N. Parua, A. Patwa, B. Penning, M. Perfilov, K. Peters, Y. Peters, G. Petrillo, P. Pétroff, R. Piegaia, J. Piper, M. A. Pleier, P. L M Podesta-Lerma, V. M. Podstavkov, M. E. Pol, P. Polozov, A. V. Popov, M. Prewitt, D. Price, S. Protopopescu, J. Qian, A. Quadt, B. Quinn, M. S. Rangel, K. Ranjan, P. N. Ratoff, I. Razumov, P. Renkel, P. Rich, M. Rijssenbeek, I. Ripp-Baudot, F. Rizatdinova, M. Rominsky, C. Royon, P. Rubinov, R. Ruchti, G. Safronov, G. Sajot, A. Sánchez-Hernández, M. P. Sanders, B. Sanghi, A. S. Santos, G. Savage, L. Sawyer, T. Scanlon, D. Schaile, R. D. Schamberger, Y. Scheglov, H. Schellman, T. Schliephake, S. Schlobohm, C. Schwanenberger, R. Schwienhorst, J. Sekaric, H. Severini, E. Shabalina, V. Shary, A. A. Shchukin, R. K. Shivpuri, V. Simak, V. Sirotenko, P. Skubic, P. Slattery, D. Smirnov, G. R. Snow, J. Snow, S. Snyder, S. Söldner-Rembold, L. Sonnenschein, A. Sopczak, M. Sosebee, K. Soustruznik, B. Spurlock, J. Stark, V. Stolin, D. A. Stoyanova, E. Strauss, M. Strauss, R. Ströhmer, D. Strom, L. Stutte, P. Svoisky, M. Takahashi, A. Tanasijczuk, W. Taylor, B. Tiller, M. Titov, V. V. Tokmenin, D. Tsybychev, B. Tuchming, C. Tully, P. M. Tuts, R. Unalan, L. Uvarov, S. Uvarov, S. Uzunyan, R. Van Kooten, W. M. van Leeuwen, N. Varelas, E. W. Varnes, I. A. Vasilyev, P. Verdier, L. S. Vertogradov, M. Verzocchi, M. Vesterinen, D. Vilanova, P. Vint, P. Vokac, H. D. Wahl, M. H L S Wang, J. Warchol, G. Watts, M. Wayne, G. Weber, M. Weber, M. Wetstein, A. White, D. Wicke, M. R J Williams, G. W. Wilson, S. J. Wimpenny, M. Wobisch, D. R. Wood, T. R. Wyatt, Y. Xie, C. Xu, S. Yacoob, R. Yamada, W. C. Yang, T. Yasuda, Y. A. Yatsunenko, Z. Ye, H. Yin, K. Yip, H. D. Yoo, S. W. Youn, J. Yu, S. Zelitch, T. Zhao, B. Zhou, J. Zhu, M. Zielinski, D. Zieminska, L. Zivkovic

    Research output: Contribution to journalArticle

    Abstract

    We present a search for flavor changing neutral currents via quark-gluon couplings in a sample of single top quark final states corresponding to 2.3 fb-1 of integrated luminosity collected with the D0 detector at the Fermilab Tevatron Collider. We select events containing a single top quark candidates with an additional jet, and obtain separation between signal and background using Bayesian neural networks. We find consistency between background expectation and observed data, and set limits on flavor changing neutral current gluon couplings of the top quark to up quarks (tgu) and charm quarks (tgc). The cross section limits at the 95% C.L. are σtgu<0.20 pb and σtgu<0.27 pb. These correspond to limits on the top quark decay branching fractions of B(t→gu)<2.0×10-4 and B(t→gc)<3.9×10-3.

    Original languageEnglish (US)
    Pages (from-to)81-87
    Number of pages7
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume693
    Issue number2
    DOIs
    StatePublished - Sep 2010

    Fingerprint

    neutral currents
    quarks
    collisions
    luminosity
    detectors
    cross sections
    decay

    Keywords

    • FCNC
    • Flavor-changing neutral current
    • Proton-antiproton collider
    • Quark-gluon coupling
    • Single top
    • Tevatron
    • Top quark

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Search for flavor changing neutral currents via quark-gluon couplings in single top quark production using 2.3 fb-1 of pp̄ collisions. / Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.; Adams, T.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G. A.; Ancu, L. S.; Aoki, M.; Arnoud, Y.; Arov, M.; Askew, A.; Åsman, B.; Atramentov, O.; Avila, C.; BackusMayes, J.; Badaud, F.; Bagby, L.; Baldin, B.; Bandurin, D. V.; Banerjee, S.; Barberis, E.; Barfuss, A. F.; Baringer, P.; Barreto, J.; Bartlett, J. F.; Bassler, U.; Beale, S.; Bean, A.; Begalli, M.; Begel, M.; Belanger-Champagne, C.; Bellantoni, L.; Benitez, J. A.; Beri, S. B.; Bernardi, G.; Bernhard, R.; Bertram, I.; Besançon, M.; Beuselinck, R.; Bezzubov, V. A.; Bhat, P. C.; Bhatnagar, V.; Blazey, G.; Blessing, S.; Bloom, K.; Boehnlein, A.; Boline, D.; Bolton, T. A.; Boos, E. E.; Borissov, G.; Bose, T.; Brandt, A.; Brandt, O.; Brock, R.; Brooijmans, G.; Bross, A.; Brown, D.; Bu, X. B.; Buchholz, D.; Buehler, M.; Buescher, V.; Bunichev, V.; Burdin, S.; Burnett, T. H.; Buszello, C. P.; Calfayan, P.; Calpas, B.; Calvet, S.; Camacho-Pérez, E.; Cammin, J.; Carrasco-Lizarraga, M. A.; Carrera, E.; Casey, B. C K; Castilla-Valdez, H.; Chakrabarti, S.; Chakraborty, D.; Chan, K. M.; Chandra, A.; Chen, G.; Chevalier-Théry, S.; Cho, D. K.; Cho, S. W.; Choi, S.; Choudhary, B.; Christoudias, T.; Cihangir, S.; Claes, D.; Clutter, J.; Cooke, M.; Cooper, W. E.; Corcoran, M.; Couderc, F.; Cousinou, M. C.; Croc, A.; Cutts, D.; Ćwiok, M.; Das, A.; Davies, G.; De, K.; de Jong, S. J.; De La Cruz-Burelo, E.; Déliot, F.; Demarteau, M.; Demina, R.; Denisov, D.; Denisov, S. P.; Desai, S.; DeVaughan, K.; Diehl, H. T.; Diesburg, M.; Dominguez, A.; Dorland, T.; Dubey, A.; Dudko, L. V.; Duggan, D.; Duperrin, A.; Dutt, S.; Dyshkant, A.; Eads, M.; Edmunds, D.; Ellison, J.; Elvira, V. D.; Enari, Y.; Eno, S.; Evans, H.; Evdokimov, A.; Evdokimov, V. N.; Facini, G.; Ferapontov, A. V.; Ferbel, T.; Fiedler, F.; Filthaut, F.; Fisher, W.; Fisk, H. E.; Fortner, M.; Fox, H.; Fuess, S.; Gadfort, T.; Garcia-Bellido, A.; Gavrilov, V.; Gay, P.; Geist, W.; Geng, W.; Gerbaudo, D.; Gerber, C. E.; Gershtein, Y.; Gillberg, D.; Ginther, G.; Golovanov, G.; Goussiou, A.; Grannis, P. D.; Greder, S.; Greenlee, H.; Greenwood, Z. D.; Gregores, E. M.; Grenier, G.; Gris, Ph; Grivaz, J. F.; Grohsjean, A.; Grünendahl, S.; Grünewald, M. W.; Guo, F.; Guo, J.; Gutierrez, G.; Gutierrez, P.; Haas, A.; Haefner, P.; Hagopian, S.; Haley, J.; Han, L.; Harder, K.; Harel, A.; Hauptman, J. M.; Hays, J.; Hebbeker, T.; Hedin, D.; Heinson, A. P.; Heintz, U.; Hensel, C.; La Cruz, I. Heredia De; Herner, K.; Hesketh, G.; Hildreth, M. D.; Hirosky, R.; Hoang, T.; Hobbs, J. D.; Hoeneisen, B.; Hohlfeld, M.; Hossain, S.; Hu, Y.; Hubacek, Z.; Huske, N.; Hynek, V.; Iashvili, I.; Illingworth, R.; Ito, A. S.; Jabeen, S.; Jaffré, M.; Jain, S.; Jamin, D.; Jesik, R.; Johns, K.; Johnson, M.; Johnston, D.; Jonckheere, A.; Jonsson, P.; Joshi, J.; Juste, A.; Kaadze, K.; Kajfasz, E.; Karmanov, D.; Kasper, P. A.; Katsanos, I.; Kehoe, R.; Kermiche, S.; Khalatyan, N.; Khanov, A.; Kharchilava, A.; Kharzheev, Y. N.; Khatidze, D.; Kirby, M. H.; Kirsch, M.; Kohli, J. M.; Kozelov, A. V.; Kraus, J.; Kumar, A.; Kupco, A.; Kurča, T.; Kuzmin, V. A.; Kvita, J.; Lammers, S.; Landsberg, G.; Lebrun, P.; Lee, H. S.; Lee, W. M.; Lellouch, J.; Li, L.; Li, Q. Z.; Lietti, S. M.; Lim, J. K.; Lincoln, D.; Linnemann, J.; Lipaev, V. V.; Lipton, R.; Liu, Y.; Liu, Z.; Lobodenko, A.; Lokajicek, M.; Love, P.; Lubatti, H. J.; Luna-Garcia, R.; Lyon, A. L.; Maciel, A. K A; Mackin, D.; Madar, R.; Magaña-Villalba, R.; Malik, S.; Malyshev, V. L.; Maravin, Y.; Martínez-Ortega, J.; McCarthy, R.; McGivern, C. L.; Meijer, M. M.; Melnitchouk, A.; Menezes, D.; Mercadante, P. G.; Merkin, M.; Meyer, A.; Meyer, J.; Mondal, N. K.; Moulik, T.; Muanza, G. S.; Mulhearn, M.; Nagy, E.; Naimuddin, M.; Narain, M.; Nayyar, R.; Neal, H. A.; Negret, J. P.; Neustroev, P.; Nilsen, H.; Novaes, S. F.; Nunnemann, T.; Obrant, G.; Onoprienko, D.; Orduna, J.; Osman, N.; Osta, J.; Otero y Garzón, G. J.; Owen, M.; Padilla, M.; Pangilinan, M.; Parashar, N.; Parihar, V.; Park, S. K.; Parsons, J.; Partridge, R.; Parua, N.; Patwa, A.; Penning, B.; Perfilov, M.; Peters, K.; Peters, Y.; Petrillo, G.; Pétroff, P.; Piegaia, R.; Piper, J.; Pleier, M. A.; Podesta-Lerma, P. L M; Podstavkov, V. M.; Pol, M. E.; Polozov, P.; Popov, A. V.; Prewitt, M.; Price, D.; Protopopescu, S.; Qian, J.; Quadt, A.; Quinn, B.; Rangel, M. S.; Ranjan, K.; Ratoff, P. N.; Razumov, I.; Renkel, P.; Rich, P.; Rijssenbeek, M.; Ripp-Baudot, I.; Rizatdinova, F.; Rominsky, M.; Royon, C.; Rubinov, P.; Ruchti, R.; Safronov, G.; Sajot, G.; Sánchez-Hernández, A.; Sanders, M. P.; Sanghi, B.; Santos, A. S.; Savage, G.; Sawyer, L.; Scanlon, T.; Schaile, D.; Schamberger, R. D.; Scheglov, Y.; Schellman, H.; Schliephake, T.; Schlobohm, S.; Schwanenberger, C.; Schwienhorst, R.; Sekaric, J.; Severini, H.; Shabalina, E.; Shary, V.; Shchukin, A. A.; Shivpuri, R. K.; Simak, V.; Sirotenko, V.; Skubic, P.; Slattery, P.; Smirnov, D.; Snow, G. R.; Snow, J.; Snyder, S.; Söldner-Rembold, S.; Sonnenschein, L.; Sopczak, A.; Sosebee, M.; Soustruznik, K.; Spurlock, B.; Stark, J.; Stolin, V.; Stoyanova, D. A.; Strauss, E.; Strauss, M.; Ströhmer, R.; Strom, D.; Stutte, L.; Svoisky, P.; Takahashi, M.; Tanasijczuk, A.; Taylor, W.; Tiller, B.; Titov, M.; Tokmenin, V. V.; Tsybychev, D.; Tuchming, B.; Tully, C.; Tuts, P. M.; Unalan, R.; Uvarov, L.; Uvarov, S.; Uzunyan, S.; Van Kooten, R.; van Leeuwen, W. M.; Varelas, N.; Varnes, E. W.; Vasilyev, I. A.; Verdier, P.; Vertogradov, L. S.; Verzocchi, M.; Vesterinen, M.; Vilanova, D.; Vint, P.; Vokac, P.; Wahl, H. D.; Wang, M. H L S; Warchol, J.; Watts, G.; Wayne, M.; Weber, G.; Weber, M.; Wetstein, M.; White, A.; Wicke, D.; Williams, M. R J; Wilson, G. W.; Wimpenny, S. J.; Wobisch, M.; Wood, D. R.; Wyatt, T. R.; Xie, Y.; Xu, C.; Yacoob, S.; Yamada, R.; Yang, W. C.; Yasuda, T.; Yatsunenko, Y. A.; Ye, Z.; Yin, H.; Yip, K.; Yoo, H. D.; Youn, S. W.; Yu, J.; Zelitch, S.; Zhao, T.; Zhou, B.; Zhu, J.; Zielinski, M.; Zieminska, D.; Zivkovic, L.

    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 693, No. 2, 09.2010, p. 81-87.

    Research output: Contribution to journalArticle

    Abazov, VM, Abbott, B, Abolins, M, Acharya, BS, Adams, M, Adams, T, Alexeev, GD, Alkhazov, G, Alton, A, Alverson, G, Alves, GA, Ancu, LS, Aoki, M, Arnoud, Y, Arov, M, Askew, A, Åsman, B, Atramentov, O, Avila, C, BackusMayes, J, Badaud, F, Bagby, L, Baldin, B, Bandurin, DV, Banerjee, S, Barberis, E, Barfuss, AF, Baringer, P, Barreto, J, Bartlett, JF, Bassler, U, Beale, S, Bean, A, Begalli, M, Begel, M, Belanger-Champagne, C, Bellantoni, L, Benitez, JA, Beri, SB, Bernardi, G, Bernhard, R, Bertram, I, Besançon, M, Beuselinck, R, Bezzubov, VA, Bhat, PC, Bhatnagar, V, Blazey, G, Blessing, S, Bloom, K, Boehnlein, A, Boline, D, Bolton, TA, Boos, EE, Borissov, G, Bose, T, Brandt, A, Brandt, O, Brock, R, Brooijmans, G, Bross, A, Brown, D, Bu, XB, Buchholz, D, Buehler, M, Buescher, V, Bunichev, V, Burdin, S, Burnett, TH, Buszello, CP, Calfayan, P, Calpas, B, Calvet, S, Camacho-Pérez, E, Cammin, J, Carrasco-Lizarraga, MA, Carrera, E, Casey, BCK, Castilla-Valdez, H, Chakrabarti, S, Chakraborty, D, Chan, KM, Chandra, A, Chen, G, Chevalier-Théry, S, Cho, DK, Cho, SW, Choi, S, Choudhary, B, Christoudias, T, Cihangir, S, Claes, D, Clutter, J, Cooke, M, Cooper, WE, Corcoran, M, Couderc, F, Cousinou, MC, Croc, A, Cutts, D, Ćwiok, M, Das, A, Davies, G, De, K, de Jong, SJ, De La Cruz-Burelo, E, Déliot, F, Demarteau, M, Demina, R, Denisov, D, Denisov, SP, Desai, S, DeVaughan, K, Diehl, HT, Diesburg, M, Dominguez, A, Dorland, T, Dubey, A, Dudko, LV, Duggan, D, Duperrin, A, Dutt, S, Dyshkant, A, Eads, M, Edmunds, D, Ellison, J, Elvira, VD, Enari, Y, Eno, S, Evans, H, Evdokimov, A, Evdokimov, VN, Facini, G, Ferapontov, AV, Ferbel, T, Fiedler, F, Filthaut, F, Fisher, W, Fisk, HE, Fortner, M, Fox, H, Fuess, S, Gadfort, T, Garcia-Bellido, A, Gavrilov, V, Gay, P, Geist, W, Geng, W, Gerbaudo, D, Gerber, CE, Gershtein, Y, Gillberg, D, Ginther, G, Golovanov, G, Goussiou, A, Grannis, PD, Greder, S, Greenlee, H, Greenwood, ZD, Gregores, EM, Grenier, G, Gris, P, Grivaz, JF, Grohsjean, A, Grünendahl, S, Grünewald, MW, Guo, F, Guo, J, Gutierrez, G, Gutierrez, P, Haas, A, Haefner, P, Hagopian, S, Haley, J, Han, L, Harder, K, Harel, A, Hauptman, JM, Hays, J, Hebbeker, T, Hedin, D, Heinson, AP, Heintz, U, Hensel, C, La Cruz, IHD, Herner, K, Hesketh, G, Hildreth, MD, Hirosky, R, Hoang, T, Hobbs, JD, Hoeneisen, B, Hohlfeld, M, Hossain, S, Hu, Y, Hubacek, Z, Huske, N, Hynek, V, Iashvili, I, Illingworth, R, Ito, AS, Jabeen, S, Jaffré, M, Jain, S, Jamin, D, Jesik, R, Johns, K, Johnson, M, Johnston, D, Jonckheere, A, Jonsson, P, Joshi, J, Juste, A, Kaadze, K, Kajfasz, E, Karmanov, D, Kasper, PA, Katsanos, I, Kehoe, R, Kermiche, S, Khalatyan, N, Khanov, A, Kharchilava, A, Kharzheev, YN, Khatidze, D, Kirby, MH, Kirsch, M, Kohli, JM, Kozelov, AV, Kraus, J, Kumar, A, Kupco, A, Kurča, T, Kuzmin, VA, Kvita, J, Lammers, S, Landsberg, G, Lebrun, P, Lee, HS, Lee, WM, Lellouch, J, Li, L, Li, QZ, Lietti, SM, Lim, JK, Lincoln, D, Linnemann, J, Lipaev, VV, Lipton, R, Liu, Y, Liu, Z, Lobodenko, A, Lokajicek, M, Love, P, Lubatti, HJ, Luna-Garcia, R, Lyon, AL, Maciel, AKA, Mackin, D, Madar, R, Magaña-Villalba, R, Malik, S, Malyshev, VL, Maravin, Y, Martínez-Ortega, J, McCarthy, R, McGivern, CL, Meijer, MM, Melnitchouk, A, Menezes, D, Mercadante, PG, Merkin, M, Meyer, A, Meyer, J, Mondal, NK, Moulik, T, Muanza, GS, Mulhearn, M, Nagy, E, Naimuddin, M, Narain, M, Nayyar, R, Neal, HA, Negret, JP, Neustroev, P, Nilsen, H, Novaes, SF, Nunnemann, T, Obrant, G, Onoprienko, D, Orduna, J, Osman, N, Osta, J, Otero y Garzón, GJ, Owen, M, Padilla, M, Pangilinan, M, Parashar, N, Parihar, V, Park, SK, Parsons, J, Partridge, R, Parua, N, Patwa, A, Penning, B, Perfilov, M, Peters, K, Peters, Y, Petrillo, G, Pétroff, P, Piegaia, R, Piper, J, Pleier, MA, Podesta-Lerma, PLM, Podstavkov, VM, Pol, ME, Polozov, P, Popov, AV, Prewitt, M, Price, D, Protopopescu, S, Qian, J, Quadt, A, Quinn, B, Rangel, MS, Ranjan, K, Ratoff, PN, Razumov, I, Renkel, P, Rich, P, Rijssenbeek, M, Ripp-Baudot, I, Rizatdinova, F, Rominsky, M, Royon, C, Rubinov, P, Ruchti, R, Safronov, G, Sajot, G, Sánchez-Hernández, A, Sanders, MP, Sanghi, B, Santos, AS, Savage, G, Sawyer, L, Scanlon, T, Schaile, D, Schamberger, RD, Scheglov, Y, Schellman, H, Schliephake, T, Schlobohm, S, Schwanenberger, C, Schwienhorst, R, Sekaric, J, Severini, H, Shabalina, E, Shary, V, Shchukin, AA, Shivpuri, RK, Simak, V, Sirotenko, V, Skubic, P, Slattery, P, Smirnov, D, Snow, GR, Snow, J, Snyder, S, Söldner-Rembold, S, Sonnenschein, L, Sopczak, A, Sosebee, M, Soustruznik, K, Spurlock, B, Stark, J, Stolin, V, Stoyanova, DA, Strauss, E, Strauss, M, Ströhmer, R, Strom, D, Stutte, L, Svoisky, P, Takahashi, M, Tanasijczuk, A, Taylor, W, Tiller, B, Titov, M, Tokmenin, VV, Tsybychev, D, Tuchming, B, Tully, C, Tuts, PM, Unalan, R, Uvarov, L, Uvarov, S, Uzunyan, S, Van Kooten, R, van Leeuwen, WM, Varelas, N, Varnes, EW, Vasilyev, IA, Verdier, P, Vertogradov, LS, Verzocchi, M, Vesterinen, M, Vilanova, D, Vint, P, Vokac, P, Wahl, HD, Wang, MHLS, Warchol, J, Watts, G, Wayne, M, Weber, G, Weber, M, Wetstein, M, White, A, Wicke, D, Williams, MRJ, Wilson, GW, Wimpenny, SJ, Wobisch, M, Wood, DR, Wyatt, TR, Xie, Y, Xu, C, Yacoob, S, Yamada, R, Yang, WC, Yasuda, T, Yatsunenko, YA, Ye, Z, Yin, H, Yip, K, Yoo, HD, Youn, SW, Yu, J, Zelitch, S, Zhao, T, Zhou, B, Zhu, J, Zielinski, M, Zieminska, D & Zivkovic, L 2010, 'Search for flavor changing neutral currents via quark-gluon couplings in single top quark production using 2.3 fb-1 of pp̄ collisions', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 693, no. 2, pp. 81-87. https://doi.org/10.1016/j.physletb.2010.08.011
    Abazov, V. M. ; Abbott, B. ; Abolins, M. ; Acharya, B. S. ; Adams, M. ; Adams, T. ; Alexeev, G. D. ; Alkhazov, G. ; Alton, A. ; Alverson, G. ; Alves, G. A. ; Ancu, L. S. ; Aoki, M. ; Arnoud, Y. ; Arov, M. ; Askew, A. ; Åsman, B. ; Atramentov, O. ; Avila, C. ; BackusMayes, J. ; Badaud, F. ; Bagby, L. ; Baldin, B. ; Bandurin, D. V. ; Banerjee, S. ; Barberis, E. ; Barfuss, A. F. ; Baringer, P. ; Barreto, J. ; Bartlett, J. F. ; Bassler, U. ; Beale, S. ; Bean, A. ; Begalli, M. ; Begel, M. ; Belanger-Champagne, C. ; Bellantoni, L. ; Benitez, J. A. ; Beri, S. B. ; Bernardi, G. ; Bernhard, R. ; Bertram, I. ; Besançon, M. ; Beuselinck, R. ; Bezzubov, V. A. ; Bhat, P. C. ; Bhatnagar, V. ; Blazey, G. ; Blessing, S. ; Bloom, K. ; Boehnlein, A. ; Boline, D. ; Bolton, T. A. ; Boos, E. E. ; Borissov, G. ; Bose, T. ; Brandt, A. ; Brandt, O. ; Brock, R. ; Brooijmans, G. ; Bross, A. ; Brown, D. ; Bu, X. B. ; Buchholz, D. ; Buehler, M. ; Buescher, V. ; Bunichev, V. ; Burdin, S. ; Burnett, T. H. ; Buszello, C. P. ; Calfayan, P. ; Calpas, B. ; Calvet, S. ; Camacho-Pérez, E. ; Cammin, J. ; Carrasco-Lizarraga, M. A. ; Carrera, E. ; Casey, B. C K ; Castilla-Valdez, H. ; Chakrabarti, S. ; Chakraborty, D. ; Chan, K. M. ; Chandra, A. ; Chen, G. ; Chevalier-Théry, S. ; Cho, D. K. ; Cho, S. W. ; Choi, S. ; Choudhary, B. ; Christoudias, T. ; Cihangir, S. ; Claes, D. ; Clutter, J. ; Cooke, M. ; Cooper, W. E. ; Corcoran, M. ; Couderc, F. ; Cousinou, M. C. ; Croc, A. ; Cutts, D. ; Ćwiok, M. ; Das, A. ; Davies, G. ; De, K. ; de Jong, S. J. ; De La Cruz-Burelo, E. ; Déliot, F. ; Demarteau, M. ; Demina, R. ; Denisov, D. ; Denisov, S. P. ; Desai, S. ; DeVaughan, K. ; Diehl, H. T. ; Diesburg, M. ; Dominguez, A. ; Dorland, T. ; Dubey, A. ; Dudko, L. V. ; Duggan, D. ; Duperrin, A. ; Dutt, S. ; Dyshkant, A. ; Eads, M. ; Edmunds, D. ; Ellison, J. ; Elvira, V. D. ; Enari, Y. ; Eno, S. ; Evans, H. ; Evdokimov, A. ; Evdokimov, V. N. ; Facini, G. ; Ferapontov, A. V. ; Ferbel, T. ; Fiedler, F. ; Filthaut, F. ; Fisher, W. ; Fisk, H. E. ; Fortner, M. ; Fox, H. ; Fuess, S. ; Gadfort, T. ; Garcia-Bellido, A. ; Gavrilov, V. ; Gay, P. ; Geist, W. ; Geng, W. ; Gerbaudo, D. ; Gerber, C. E. ; Gershtein, Y. ; Gillberg, D. ; Ginther, G. ; Golovanov, G. ; Goussiou, A. ; Grannis, P. D. ; Greder, S. ; Greenlee, H. ; Greenwood, Z. D. ; Gregores, E. M. ; Grenier, G. ; Gris, Ph ; Grivaz, J. F. ; Grohsjean, A. ; Grünendahl, S. ; Grünewald, M. W. ; Guo, F. ; Guo, J. ; Gutierrez, G. ; Gutierrez, P. ; Haas, A. ; Haefner, P. ; Hagopian, S. ; Haley, J. ; Han, L. ; Harder, K. ; Harel, A. ; Hauptman, J. M. ; Hays, J. ; Hebbeker, T. ; Hedin, D. ; Heinson, A. P. ; Heintz, U. ; Hensel, C. ; La Cruz, I. Heredia De ; Herner, K. ; Hesketh, G. ; Hildreth, M. D. ; Hirosky, R. ; Hoang, T. ; Hobbs, J. D. ; Hoeneisen, B. ; Hohlfeld, M. ; Hossain, S. ; Hu, Y. ; Hubacek, Z. ; Huske, N. ; Hynek, V. ; Iashvili, I. ; Illingworth, R. ; Ito, A. S. ; Jabeen, S. ; Jaffré, M. ; Jain, S. ; Jamin, D. ; Jesik, R. ; Johns, K. ; Johnson, M. ; Johnston, D. ; Jonckheere, A. ; Jonsson, P. ; Joshi, J. ; Juste, A. ; Kaadze, K. ; Kajfasz, E. ; Karmanov, D. ; Kasper, P. A. ; Katsanos, I. ; Kehoe, R. ; Kermiche, S. ; Khalatyan, N. ; Khanov, A. ; Kharchilava, A. ; Kharzheev, Y. N. ; Khatidze, D. ; Kirby, M. H. ; Kirsch, M. ; Kohli, J. M. ; Kozelov, A. V. ; Kraus, J. ; Kumar, A. ; Kupco, A. ; Kurča, T. ; Kuzmin, V. A. ; Kvita, J. ; Lammers, S. ; Landsberg, G. ; Lebrun, P. ; Lee, H. S. ; Lee, W. M. ; Lellouch, J. ; Li, L. ; Li, Q. Z. ; Lietti, S. M. ; Lim, J. K. ; Lincoln, D. ; Linnemann, J. ; Lipaev, V. V. ; Lipton, R. ; Liu, Y. ; Liu, Z. ; Lobodenko, A. ; Lokajicek, M. ; Love, P. ; Lubatti, H. J. ; Luna-Garcia, R. ; Lyon, A. L. ; Maciel, A. K A ; Mackin, D. ; Madar, R. ; Magaña-Villalba, R. ; Malik, S. ; Malyshev, V. L. ; Maravin, Y. ; Martínez-Ortega, J. ; McCarthy, R. ; McGivern, C. L. ; Meijer, M. M. ; Melnitchouk, A. ; Menezes, D. ; Mercadante, P. G. ; Merkin, M. ; Meyer, A. ; Meyer, J. ; Mondal, N. K. ; Moulik, T. ; Muanza, G. S. ; Mulhearn, M. ; Nagy, E. ; Naimuddin, M. ; Narain, M. ; Nayyar, R. ; Neal, H. A. ; Negret, J. P. ; Neustroev, P. ; Nilsen, H. ; Novaes, S. F. ; Nunnemann, T. ; Obrant, G. ; Onoprienko, D. ; Orduna, J. ; Osman, N. ; Osta, J. ; Otero y Garzón, G. J. ; Owen, M. ; Padilla, M. ; Pangilinan, M. ; Parashar, N. ; Parihar, V. ; Park, S. K. ; Parsons, J. ; Partridge, R. ; Parua, N. ; Patwa, A. ; Penning, B. ; Perfilov, M. ; Peters, K. ; Peters, Y. ; Petrillo, G. ; Pétroff, P. ; Piegaia, R. ; Piper, J. ; Pleier, M. A. ; Podesta-Lerma, P. L M ; Podstavkov, V. M. ; Pol, M. E. ; Polozov, P. ; Popov, A. V. ; Prewitt, M. ; Price, D. ; Protopopescu, S. ; Qian, J. ; Quadt, A. ; Quinn, B. ; Rangel, M. S. ; Ranjan, K. ; Ratoff, P. N. ; Razumov, I. ; Renkel, P. ; Rich, P. ; Rijssenbeek, M. ; Ripp-Baudot, I. ; Rizatdinova, F. ; Rominsky, M. ; Royon, C. ; Rubinov, P. ; Ruchti, R. ; Safronov, G. ; Sajot, G. ; Sánchez-Hernández, A. ; Sanders, M. P. ; Sanghi, B. ; Santos, A. S. ; Savage, G. ; Sawyer, L. ; Scanlon, T. ; Schaile, D. ; Schamberger, R. D. ; Scheglov, Y. ; Schellman, H. ; Schliephake, T. ; Schlobohm, S. ; Schwanenberger, C. ; Schwienhorst, R. ; Sekaric, J. ; Severini, H. ; Shabalina, E. ; Shary, V. ; Shchukin, A. A. ; Shivpuri, R. K. ; Simak, V. ; Sirotenko, V. ; Skubic, P. ; Slattery, P. ; Smirnov, D. ; Snow, G. R. ; Snow, J. ; Snyder, S. ; Söldner-Rembold, S. ; Sonnenschein, L. ; Sopczak, A. ; Sosebee, M. ; Soustruznik, K. ; Spurlock, B. ; Stark, J. ; Stolin, V. ; Stoyanova, D. A. ; Strauss, E. ; Strauss, M. ; Ströhmer, R. ; Strom, D. ; Stutte, L. ; Svoisky, P. ; Takahashi, M. ; Tanasijczuk, A. ; Taylor, W. ; Tiller, B. ; Titov, M. ; Tokmenin, V. V. ; Tsybychev, D. ; Tuchming, B. ; Tully, C. ; Tuts, P. M. ; Unalan, R. ; Uvarov, L. ; Uvarov, S. ; Uzunyan, S. ; Van Kooten, R. ; van Leeuwen, W. M. ; Varelas, N. ; Varnes, E. W. ; Vasilyev, I. A. ; Verdier, P. ; Vertogradov, L. S. ; Verzocchi, M. ; Vesterinen, M. ; Vilanova, D. ; Vint, P. ; Vokac, P. ; Wahl, H. D. ; Wang, M. H L S ; Warchol, J. ; Watts, G. ; Wayne, M. ; Weber, G. ; Weber, M. ; Wetstein, M. ; White, A. ; Wicke, D. ; Williams, M. R J ; Wilson, G. W. ; Wimpenny, S. J. ; Wobisch, M. ; Wood, D. R. ; Wyatt, T. R. ; Xie, Y. ; Xu, C. ; Yacoob, S. ; Yamada, R. ; Yang, W. C. ; Yasuda, T. ; Yatsunenko, Y. A. ; Ye, Z. ; Yin, H. ; Yip, K. ; Yoo, H. D. ; Youn, S. W. ; Yu, J. ; Zelitch, S. ; Zhao, T. ; Zhou, B. ; Zhu, J. ; Zielinski, M. ; Zieminska, D. ; Zivkovic, L. / Search for flavor changing neutral currents via quark-gluon couplings in single top quark production using 2.3 fb-1 of pp̄ collisions. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2010 ; Vol. 693, No. 2. pp. 81-87.
    @article{ee28e414ef13482cab43241073e65956,
    title = "Search for flavor changing neutral currents via quark-gluon couplings in single top quark production using 2.3 fb-1 of pp̄ collisions",
    abstract = "We present a search for flavor changing neutral currents via quark-gluon couplings in a sample of single top quark final states corresponding to 2.3 fb-1 of integrated luminosity collected with the D0 detector at the Fermilab Tevatron Collider. We select events containing a single top quark candidates with an additional jet, and obtain separation between signal and background using Bayesian neural networks. We find consistency between background expectation and observed data, and set limits on flavor changing neutral current gluon couplings of the top quark to up quarks (tgu) and charm quarks (tgc). The cross section limits at the 95{\%} C.L. are σtgu<0.20 pb and σtgu<0.27 pb. These correspond to limits on the top quark decay branching fractions of B(t→gu)<2.0×10-4 and B(t→gc)<3.9×10-3.",
    keywords = "FCNC, Flavor-changing neutral current, Proton-antiproton collider, Quark-gluon coupling, Single top, Tevatron, Top quark",
    author = "Abazov, {V. M.} and B. Abbott and M. Abolins and Acharya, {B. S.} and M. Adams and T. Adams and Alexeev, {G. D.} and G. Alkhazov and A. Alton and G. Alverson and Alves, {G. A.} and Ancu, {L. S.} and M. Aoki and Y. Arnoud and M. Arov and A. Askew and B. {\AA}sman and O. Atramentov and C. Avila and J. BackusMayes and F. Badaud and L. Bagby and B. Baldin and Bandurin, {D. V.} and S. Banerjee and E. Barberis and Barfuss, {A. F.} and P. Baringer and J. Barreto and Bartlett, {J. F.} and U. Bassler and S. Beale and A. Bean and M. Begalli and M. Begel and C. Belanger-Champagne and L. Bellantoni and Benitez, {J. A.} and Beri, {S. B.} and G. Bernardi and R. Bernhard and I. Bertram and M. Besan{\cc}on and R. Beuselinck and Bezzubov, {V. A.} and Bhat, {P. C.} and V. Bhatnagar and G. Blazey and S. Blessing and K. Bloom and A. Boehnlein and D. Boline and Bolton, {T. A.} and Boos, {E. E.} and G. Borissov and T. Bose and A. Brandt and O. Brandt and R. Brock and G. Brooijmans and A. Bross and D. Brown and Bu, {X. B.} and D. Buchholz and M. Buehler and V. Buescher and V. Bunichev and S. Burdin and Burnett, {T. H.} and Buszello, {C. P.} and P. Calfayan and B. Calpas and S. Calvet and E. Camacho-P{\'e}rez and J. Cammin and Carrasco-Lizarraga, {M. A.} and E. Carrera and Casey, {B. C K} and H. Castilla-Valdez and S. Chakrabarti and D. Chakraborty and Chan, {K. M.} and A. Chandra and G. Chen and S. Chevalier-Th{\'e}ry and Cho, {D. K.} and Cho, {S. W.} and S. Choi and B. Choudhary and T. Christoudias and S. Cihangir and D. Claes and J. Clutter and M. Cooke and Cooper, {W. E.} and M. Corcoran and F. Couderc and Cousinou, {M. C.} and A. Croc and D. Cutts and M. Ćwiok and A. Das and G. Davies and K. De and {de Jong}, {S. J.} and {De La Cruz-Burelo}, E. and F. D{\'e}liot and M. Demarteau and R. Demina and D. Denisov and Denisov, {S. P.} and S. Desai and K. DeVaughan and Diehl, {H. T.} and M. Diesburg and A. Dominguez and T. Dorland and A. Dubey and Dudko, {L. V.} and D. Duggan and A. Duperrin and S. Dutt and A. Dyshkant and M. Eads and D. Edmunds and J. Ellison and Elvira, {V. D.} and Y. Enari and S. Eno and H. Evans and A. Evdokimov and Evdokimov, {V. N.} and G. Facini and Ferapontov, {A. V.} and T. Ferbel and F. Fiedler and F. Filthaut and W. Fisher and Fisk, {H. E.} and M. Fortner and H. Fox and S. Fuess and T. Gadfort and A. Garcia-Bellido and V. Gavrilov and P. Gay and W. Geist and W. Geng and D. Gerbaudo and Gerber, {C. E.} and Y. Gershtein and D. Gillberg and G. Ginther and G. Golovanov and A. Goussiou and Grannis, {P. D.} and S. Greder and H. Greenlee and Greenwood, {Z. D.} and Gregores, {E. M.} and G. Grenier and Ph Gris and Grivaz, {J. F.} and A. Grohsjean and S. Gr{\"u}nendahl and Gr{\"u}newald, {M. W.} and F. Guo and J. Guo and G. Gutierrez and P. Gutierrez and A. Haas and P. Haefner and S. Hagopian and J. Haley and L. Han and K. Harder and A. Harel and Hauptman, {J. M.} and J. Hays and T. Hebbeker and D. Hedin and Heinson, {A. P.} and U. Heintz and C. Hensel and {La Cruz}, {I. Heredia De} and K. Herner and G. Hesketh and Hildreth, {M. D.} and R. Hirosky and T. Hoang and Hobbs, {J. D.} and B. Hoeneisen and M. Hohlfeld and S. Hossain and Y. Hu and Z. Hubacek and N. Huske and V. Hynek and I. Iashvili and R. Illingworth and Ito, {A. S.} and S. Jabeen and M. Jaffr{\'e} and S. Jain and D. Jamin and R. Jesik and K. Johns and M. Johnson and D. Johnston and A. Jonckheere and P. Jonsson and J. Joshi and A. Juste and K. Kaadze and E. Kajfasz and D. Karmanov and Kasper, {P. A.} and I. Katsanos and R. Kehoe and S. Kermiche and N. Khalatyan and A. Khanov and A. Kharchilava and Kharzheev, {Y. N.} and D. Khatidze and Kirby, {M. H.} and M. Kirsch and Kohli, {J. M.} and Kozelov, {A. V.} and J. Kraus and A. Kumar and A. Kupco and T. Kurča and Kuzmin, {V. A.} and J. Kvita and S. Lammers and G. Landsberg and P. Lebrun and Lee, {H. S.} and Lee, {W. M.} and J. Lellouch and L. Li and Li, {Q. Z.} and Lietti, {S. M.} and Lim, {J. K.} and D. Lincoln and J. Linnemann and Lipaev, {V. V.} and R. Lipton and Y. Liu and Z. Liu and A. Lobodenko and M. Lokajicek and P. Love and Lubatti, {H. J.} and R. Luna-Garcia and Lyon, {A. L.} and Maciel, {A. K A} and D. Mackin and R. Madar and R. Maga{\~n}a-Villalba and S. Malik and Malyshev, {V. L.} and Y. Maravin and J. Mart{\'i}nez-Ortega and R. McCarthy and McGivern, {C. L.} and Meijer, {M. M.} and A. Melnitchouk and D. Menezes and Mercadante, {P. G.} and M. Merkin and A. Meyer and J. Meyer and Mondal, {N. K.} and T. Moulik and Muanza, {G. S.} and M. Mulhearn and E. Nagy and M. Naimuddin and M. Narain and R. Nayyar and Neal, {H. A.} and Negret, {J. P.} and P. Neustroev and H. Nilsen and Novaes, {S. F.} and T. Nunnemann and G. Obrant and D. Onoprienko and J. Orduna and N. Osman and J. Osta and {Otero y Garz{\'o}n}, {G. J.} and M. Owen and M. Padilla and M. Pangilinan and N. Parashar and V. Parihar and Park, {S. K.} and J. Parsons and R. Partridge and N. Parua and A. Patwa and B. Penning and M. Perfilov and K. Peters and Y. Peters and G. Petrillo and P. P{\'e}troff and R. Piegaia and J. Piper and Pleier, {M. A.} and Podesta-Lerma, {P. L M} and Podstavkov, {V. M.} and Pol, {M. E.} and P. Polozov and Popov, {A. V.} and M. Prewitt and D. Price and S. Protopopescu and J. Qian and A. Quadt and B. Quinn and Rangel, {M. S.} and K. Ranjan and Ratoff, {P. N.} and I. Razumov and P. Renkel and P. Rich and M. Rijssenbeek and I. Ripp-Baudot and F. Rizatdinova and M. Rominsky and C. Royon and P. Rubinov and R. Ruchti and G. Safronov and G. Sajot and A. S{\'a}nchez-Hern{\'a}ndez and Sanders, {M. P.} and B. Sanghi and Santos, {A. S.} and G. Savage and L. Sawyer and T. Scanlon and D. Schaile and Schamberger, {R. D.} and Y. Scheglov and H. Schellman and T. Schliephake and S. Schlobohm and C. Schwanenberger and R. Schwienhorst and J. Sekaric and H. Severini and E. Shabalina and V. Shary and Shchukin, {A. A.} and Shivpuri, {R. K.} and V. Simak and V. Sirotenko and P. Skubic and P. Slattery and D. Smirnov and Snow, {G. R.} and J. Snow and S. Snyder and S. S{\"o}ldner-Rembold and L. Sonnenschein and A. Sopczak and M. Sosebee and K. Soustruznik and B. Spurlock and J. Stark and V. Stolin and Stoyanova, {D. A.} and E. Strauss and M. Strauss and R. Str{\"o}hmer and D. Strom and L. Stutte and P. Svoisky and M. Takahashi and A. Tanasijczuk and W. Taylor and B. Tiller and M. Titov and Tokmenin, {V. V.} and D. Tsybychev and B. Tuchming and C. Tully and Tuts, {P. M.} and R. Unalan and L. Uvarov and S. Uvarov and S. Uzunyan and {Van Kooten}, R. and {van Leeuwen}, {W. M.} and N. Varelas and Varnes, {E. W.} and Vasilyev, {I. A.} and P. Verdier and Vertogradov, {L. S.} and M. Verzocchi and M. Vesterinen and D. Vilanova and P. Vint and P. Vokac and Wahl, {H. D.} and Wang, {M. H L S} and J. Warchol and G. Watts and M. Wayne and G. Weber and M. Weber and M. Wetstein and A. White and D. Wicke and Williams, {M. R J} and Wilson, {G. W.} and Wimpenny, {S. J.} and M. Wobisch and Wood, {D. R.} and Wyatt, {T. R.} and Y. Xie and C. Xu and S. Yacoob and R. Yamada and Yang, {W. C.} and T. Yasuda and Yatsunenko, {Y. A.} and Z. Ye and H. Yin and K. Yip and Yoo, {H. D.} and Youn, {S. W.} and J. Yu and S. Zelitch and T. Zhao and B. Zhou and J. Zhu and M. Zielinski and D. Zieminska and L. Zivkovic",
    year = "2010",
    month = "9",
    doi = "10.1016/j.physletb.2010.08.011",
    language = "English (US)",
    volume = "693",
    pages = "81--87",
    journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
    issn = "0370-2693",
    publisher = "Elsevier",
    number = "2",

    }

    TY - JOUR

    T1 - Search for flavor changing neutral currents via quark-gluon couplings in single top quark production using 2.3 fb-1 of pp̄ collisions

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    PY - 2010/9

    Y1 - 2010/9

    N2 - We present a search for flavor changing neutral currents via quark-gluon couplings in a sample of single top quark final states corresponding to 2.3 fb-1 of integrated luminosity collected with the D0 detector at the Fermilab Tevatron Collider. We select events containing a single top quark candidates with an additional jet, and obtain separation between signal and background using Bayesian neural networks. We find consistency between background expectation and observed data, and set limits on flavor changing neutral current gluon couplings of the top quark to up quarks (tgu) and charm quarks (tgc). The cross section limits at the 95% C.L. are σtgu<0.20 pb and σtgu<0.27 pb. These correspond to limits on the top quark decay branching fractions of B(t→gu)<2.0×10-4 and B(t→gc)<3.9×10-3.

    AB - We present a search for flavor changing neutral currents via quark-gluon couplings in a sample of single top quark final states corresponding to 2.3 fb-1 of integrated luminosity collected with the D0 detector at the Fermilab Tevatron Collider. We select events containing a single top quark candidates with an additional jet, and obtain separation between signal and background using Bayesian neural networks. We find consistency between background expectation and observed data, and set limits on flavor changing neutral current gluon couplings of the top quark to up quarks (tgu) and charm quarks (tgc). The cross section limits at the 95% C.L. are σtgu<0.20 pb and σtgu<0.27 pb. These correspond to limits on the top quark decay branching fractions of B(t→gu)<2.0×10-4 and B(t→gc)<3.9×10-3.

    KW - FCNC

    KW - Flavor-changing neutral current

    KW - Proton-antiproton collider

    KW - Quark-gluon coupling

    KW - Single top

    KW - Tevatron

    KW - Top quark

    UR - http://www.scopus.com/inward/record.url?scp=77956892822&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=77956892822&partnerID=8YFLogxK

    U2 - 10.1016/j.physletb.2010.08.011

    DO - 10.1016/j.physletb.2010.08.011

    M3 - Article

    VL - 693

    SP - 81

    EP - 87

    JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

    JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

    SN - 0370-2693

    IS - 2

    ER -