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Search for single top quark production at HERA

  • F. D. Aaron
  • , M. Aldaya Martin
  • , C. Alexa
  • , K. Alimujiang
  • , V. Andreev
  • , B. Antunovic
  • , A. Asmone
  • , S. Backovic
  • , A. Baghdasaryan
  • , E. Barrelet
  • , W. Bartel
  • , K. Begzsuren
  • , A. Belousov
  • , J. C. Bizot
  • , V. Boudry
  • , I. Bozovic-Jelisavcic
  • , J. Bracinik
  • , G. Brandt
  • , M. Brinkmann
  • , V. Brisson
  • D. Bruncko, A. Bunyatyan, G. Buschhorn, L. Bystritskaya, A. J. Campbell, K. B. Cantun Avila, F. Cassol-Brunner, K. Cerny, V. Cerny, V. Chekelian, A. Cholewa, J. G. Contreras, J. A. Coughlan, G. Cozzika, J. Cvach, J. B. Dainton, K. Daum, M. Deák, Y. de Boer, B. Delcourt, M. Del Degan, J. Delvax, A. De Roeck, E. A. De Wolf, C. Diaconu, V. Dodonov, A. Dossanov, A. Dubak, G. Eckerlin, V. Efremenko, S. Egli, A. Eliseev, E. Elsen, A. Falkiewicz, L. Favart, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, D. J. Fischer, M. Fleischer, A. Fomenko, E. Gabathuler, J. Gayler, S. Ghazaryan, A. Glazov, I. Glushkov, L. Goerlich, N. Gogitidze, M. Gouzevitch, C. Grab, T. Greenshaw, B. R. Grell, G. Grindhammer, S. Habib, D. Haidt, C. Helebrant, R. C.W. Henderson, E. Hennekemper, H. Henschel, M. Herbst, G. Herrera, M. Hildebrandt, K. H. Hiller, D. Hoffmann, R. Horisberger, T. Hreus, M. Jacquet, M. E. Janssen, X. Janssen, L. Jönsson, A. W. Jung, H. Jung, M. Kapichine, J. Katzy, I. R. Kenyon, C. Kiesling, M. Klein, C. Kleinwort, T. Kluge, A. Knutsson, R. Kogler, P. Kostka, M. Kraemer, K. Krastev, J. Kretzschmar, A. Kropivnitskaya, K. Krüger, K. Kutak, M. P.J. Landon, W. Lange, G. Laštovička-Medin, P. Laycock, A. Lebedev, G. Leibenguth, V. Lendermann, S. Levonian, G. Li, K. Lipka, A. Liptaj, B. List, J. List, N. Loktionova, R. Lopez-Fernandez, V. Lubimov, L. Lytkin, A. Makankine, E. Malinovski, P. Marage, Ll Marti, H. U. Martyn, S. J. Maxfield, A. Mehta, A. B. Meyer, H. Meyer, H. Meyer, J. Meyer, V. Michels, S. Mikocki, I. Milcewicz-Mika, F. Moreau, A. Morozov, J. V. Morris, M. U. Mozer, M. Mudrinic, K. Müller, P. Murín, Th Naumann, P. R. Newman, C. Niebuhr, A. Nikiforov, G. Nowak, K. Nowak, M. Nozicka, B. Olivier, J. E. Olsson, S. Osman, D. Ozerov, V. Palichik, I. Panagoulias, M. Pandurovic, Th Papadopoulou, C. Pascaud, G. D. Patel, O. Pejchal, E. Perez, A. Petrukhin, I. Picuric, S. Piec, D. Pitzl, R. Plačakyte, B. Pokorny, R. Polifka, B. Povh, T. Preda, V. Radescu, A. J. Rahmat, N. Raicevic, A. Raspiareza, T. Ravdandorj, P. Reimer, E. Rizvi, P. Robmann, B. Roland, R. Roosen, A. Rostovtsev, M. Rotaru, J. E. Ruiz Tabasco, Z. Rurikova, S. Rusakov, D. Šálek, D. P.C. Sankey, M. Sauter, E. Sauvan, S. Schmitt, C. Schmitz, L. Schoeffel, A. Schöning, H. C. Schultz-Coulon, F. Sefkow, R. N. Shaw-West, L. N. Shtarkov, S. Shushkevich, T. Sloan, I. Smiljanic, Y. Soloviev, P. Sopicki, D. South, V. Spaskov, A. Specka, Z. Staykova, M. Steder, B. Stella, G. Stoicea, U. Straumann, D. Sunar, T. Sykora, V. Tchoulakov, G. Thompson, P. D. Thompson, T. Toll, F. Tomasz, T. H. Tran, D. Traynor, T. N. Trinh, P. Truöl, I. Tsakov, B. Tseepeldorj, J. Turnau, K. Urban, A. Valkárová, C. Vallée, P. Van Mechelen, A. Vargas Trevino, Y. Vazdik, S. Vinokurova, V. Volchinski, M. von den Driesch, D. Wegener, Ch Wissing, E. Wünsch, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, T. Zimmermann, H. Zohrabyan, F. Zomer, R. Zus
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • c/o DESY
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • University Roma Tre
  • University of Montenegro
  • Yerevan Physics Institute
  • Universités Paris VI and VII
  • Institute of Physics and Technology of the Mongolian Academy of Sciences
  • Laboratoire de l'Accélérateur Linéaire
  • University of Belgrade
  • University of Birmingham
  • Universität Hamburg
  • Institute of Experimental Physics Slovak Academy of Sciences
  • Max-Planck-Institut für Kernphysik
  • Max-Planck-Institut für Physik
  • Institute for Theoretical and Experimental Physics
  • Dept. Fis. Ap. CINVESTAV
  • Université Paris-Sud
  • Charles University
  • CCLRC Rutherford Appleton Laboratory
  • CEA/UVSQ/CNRS
  • Institute of Physics of the Czech Academy of Sciences
  • University of Liverpool
  • Bergische Universität Gesamthochschule Wuppertal
  • ETH Zurich
  • Inter-University Institute for High Energies ULB-VUB
  • Paul Scherrer Institut
  • Institute for Nuclear Physics
  • Lancaster University
  • University of Heidelberg
  • CINVESTAV-IPN
  • Lund University
  • Joint Institute for Nuclear Research, Dubna
  • Queen Mary University of London
  • RWTH Aachen University
  • Ip Paris
  • Physik-Institut der Universität Zürich
  • University of Dortmund
  • Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)

Abstract

A search for single top quark production is performed in the full e ± p data sample collected by the H1 experiment at HERA, corresponding to an integrated luminosity of 474 pb -1. Decays of top quarks into a b quark and a W boson with subsequent leptonic or hadronic decay of the W are investigated. A multivariate analysis is performed to discriminate top quark production from Standard Model background processes. An upper limit on the top quark production cross section via flavour changing neutral current processes σ (e p → e t X) < 0.25 pb is established at 95% CL. Limits on the anomalous coupling κ t u γ are derived.

Original languageEnglish
Pages (from-to)450-458
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume678
Issue number5
DOIs
Publication statusPublished - 3 Aug 2009

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