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A search for leptoquark bosons in e-p collisions at HERA

  • C. Adloff
  • , V. Andreev
  • , B. Andrieu
  • , T. Anthonis
  • , V. Arkadov
  • , A. Astvatsatourov
  • , A. Babaev
  • , J. Bahr
  • , P. Baranov
  • , E. Barrelet
  • , W. Bartel
  • , P. Bate
  • , J. Becker
  • , A. Beglarian
  • , O. Behnke
  • , C. Beier
  • , A. Belousov
  • , T. Benisch
  • , Ch Berger
  • , T. Berndt
  • J. C. Bizot, J. Boehme, V. Boudry, W. Braunschweig, V. Brisson, H. B. Bröker, D. P. Brown, W. Brückner, D. Bruncko, J. Bürger, F. W. Büsser, A. Bunyatyan, A. Burrage, G. Buschhorn, L. Bystritskaya, A. J. Campbell, J. Cao, S. Caron, F. Cassol-Brunner, D. Clarke, B. Clerbaux, C. Collard, J. G. Contreras, Y. R. Coppens, J. A. Coughlan, M. C. Cousinou, B. E. Cox, G. Cozzika, J. Cvach, J. B. Dainton, W. D. Dau, K. Daum, M. Davidsson, B. Delcourt, N. Delerue, R. Demirchyan, A. De Roeck, E. A. De Wolf, C. Diaconu, J. Dingfelder, P. Dixon, V. Dodonov, J. D. Dowell, A. Droutskoi, A. Dubak, C. Duprel, G. Eckerlin, D. Eckstein, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, M. Ellerbrock, E. Elsen, M. Erdmann, W. Erdmann, P. J.W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Ferencei, S. Ferron, M. Fleischer, Y. H. Fleming, G. Flugge, A. Fomenko, I. Foresti, J. Formánek, G. Franke, E. Gabathuler, K. Gabathuler, J. Garvey, J. Gassnerf, J. Gayler, R. Gerhards, C. Gerlich, S. Ghazaryan, L. Goerlich, N. Gogitidze, M. Goldberg, C. Grab, H. Grässler, T. Greenshaw, G. Grindhammer, T. Hadig, D. Haidt, L. Hajduk, J. Haller, W. J. Haynes, B. Heinemann, G. Heinzelmann, R. C.W. Henderson, S. Hengstmann, H. Henschel, R. Heremans, G. Herrera, I. Herynek, M. Hildebrandt, M. Hilgers, K. H. Hiller, J. Hladky, P. Höting, D. Hoffmann, R. Horisberger, S. Hurling, M. Ibbotson, C. Işsever, M. Jacquet, M. Jaffre, L. Janauschek, X. Janssen, V. Jemanov, L. Jönsson, C. Johnson, D. P. Johnson, M. A.S. Jones, H. Jung, D. Kant, M. Kapichine, M. Karlsson, O. Karschnick, F. Keil, N. Keller, J. Kennedy, I. R. Kenyon, S. Kermiche, C. Kiesling, P. Kjellberg, M. Klein, C. Kleinwort, T. Kluge, G. Knies, B. Koblitz, S. D. Kolya, V. Korbel, P. Kostka, S. K. Kotelnikov, R. Koutouev, A. Koutov, H. Krehbiel, J. Kroseberg, K. Krüger, A. Küpper, T. Kuhr, T. Kurča, R. Lahmann, D. Lamb, M. P.J. Landon, W. Lange, T. Laštovička, P. Laycock, E. Lebailly, A. Lebedev, B. Leißner, R. Lemrani, V. Lendermann, S. Levonian, M. Lindstroem, B. List, E. Lobodzinska, B. Lobodzinski, A. Loginov, N. Loktionova, V. Lubimov, S. Lüders, D. Lüke, L. Lytkin, H. Mahlke-Krüger, N. Malden, E. Malinovski, I. Malinovski, R. Maraček, P. Marage, J. Marks, R. Marshall, H. U. Martyn, J. Martyniak, S. J. Maxfield, D. Meer, A. Mehta, K. Meier, A. B. Meyer, H. Meyer, J. Meyer, P. O. Meyer, S. Mikocki, D. Milstead, T. Mkrtchyan, R. Mohr, S. Mohrdieck, M. N. Mondragon, F. Moreau, A. Morozov, J. V. Morris, K. Müller, P. Murín, V. Nagovizin, B. Naroska, J. Naumann, Th Naumann, G. Nellen, P. R. Newman, T. C. Nicholls, F. Niebergall, C. Niebuhr, O. Nix, G. Nowak, J. E. Olsson, D. Ozerov, V. Panassik, C. Pascaud, G. D. Patel, M. Peez, E. Perez, J. P. Phillips, D. Pitzl, R. Pöschl, I. Potachnikova, B. Povh, K. Rabbertz, G. Rädel, J. Rauschenberger, P. Reimer, B. Reisert, D. Reyna, C. Risler, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, S. Rusakov, K. Rybicki, D. P.C. Sankey, J. Scheins, F. P. Schilling, P. Schleper, D. Schmidt, D. Schmidt, S. Schmidt, S. Schmitt, M. Schneider, L. Schoeffel, A. Schöning, T. Schörner, V. Schröder, H. C. Schultz-Coulon, C. Schwanenberger, K. Sedlák, F. Sefkow, V. Shekelyan, I. Sheviakov, L. N. Shtarkov, Y. Sirois, T. Sloan, P. Smirnov, Y. Soloviev, D. South, V. Spaskov, A. Specka, H. Spitzer, R. Stamen, B. Stella, J. Stiewe, U. Straumann, M. Swart, M. Taševsky, V. Tchernyshov, S. Tchetchelnitski, G. Thompson, P. D. Thompson, N. Tobien, D. Traynor, P. Truöl, G. Tsipolitis, I. Tsurin, J. Turnau, J. E. Turney, E. Tzamariudaki, S. Udluft, M. Urban, A. Usik, S. Valkár, A. Valkárová, C. Vallée, P. Van Mechelen, S. Vassiliev, Y. Vazdik, A. Vichnevski, K. Wacker, R. Wallny, B. Waugh, G. Weber, M. Weber, D. Wegener, C. Werner, M. Werner, N. Werner, G. White, S. Wiesand, T. Wilksen, M. Winde, G. G. Winter, Ch Wissing, M. Wobisch, E. E. Woehrling, E. Wünsch, A. C. Wyatt, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, F. Zomer, J. Zsembery, M. zur Nedden
  • Bergische Universität Gesamthochschule Wuppertal
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • Inter-University Institute for High Energies ULB-VUB
  • University of Antwerp
  • c/o DESY
  • Institute for Theoretical and Experimental Physics
  • Universités Paris VI and VII
  • University of Manchester
  • Physik-Institut der Universität Zürich
  • Yerevan Physics Institute
  • University of Heidelberg
  • RWTH Aachen University
  • Laboratoire de l'Accélérateur Linéaire
  • Max-Planck-Institut für Kernphysik
  • Institute of Experimental Physics Slovak Academy of Sciences
  • Universität Hamburg
  • University of Liverpool
  • Max-Planck-Institut für Physik
  • Aix-Marseille Université
  • CCLRC Rutherford Appleton Laboratory
  • University of Dortmund
  • Dept. Fis. Ap. CINVESTAV
  • University of Birmingham
  • Institut Pierre Simon Laplace, CNRS and CEA
  • Institute of Physics of the Czech Academy of Sciences
  • Christian-Albrechts-University Kiel
  • Lund University
  • European Organization for Nuclear Research
  • Queen Mary University of London
  • Paul Scherrer Institut
  • ETH Zurich
  • Universität Karlsruhe/Forschungszentrum Karlsruhe
  • University of P.J. Šafárik
  • Charles University
  • Institute for Nuclear Physics
  • Lancaster University
  • CINVESTAV-IPN
  • Joint Institute for Nuclear Research, Dubna
  • University Roma Tre
  • National Technical University of Athens

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

23 Citations (Scopus)

Résumé

A search for scalar and vector leptoquarks coupling to first generation fermions is performed in the HI experiment at the ep collider HERA. The analysis uses e-p data collected in 1998 and 1999 at a centre-of-mass energy of 320 GeV, corresponding to an integrated luminosity of ∼ 15 pb-1. No evidence for the direct production of such particles is found in a data sample with a large transverse momentum final state electron or with large missing transverse momentum, and constraints on leptoquark models are established. For a Yukawa coupling of electromagnetic strength leptoquarks are excluded for masses up to ∼ 290 GeV. This analysis complements the leptoquark searches performed previously using data collected whilst HERA was operating with positrons instead of electrons.

langue originaleAnglais
Pages (de - à)234-242
Nombre de pages9
journalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume523
Numéro de publication3-4
Les DOIs
étatPublié - 27 déc. 2001

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